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The Impact of PFAS on the Public Health and Safety of Future Food Supply in Europe: Challenges and AI Technologies Solutions of Environmental Sustainability

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13 February 2025

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17 February 2025

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Abstract
Per- and polyfluoroalkyl substances (PFAS) are persistent organic pollutants used in everyday products. They pose a significant threat to global agricultural sustainability and food security, particularly in European farmlands. Contamination occurs through industrial discharges, biosolid applications, and contaminated irrigation water. PFAS contamination affects soil fertility, water quality, and food safety, and has broader implications for Europe's food security. This research explores the scale of PFAS contamination, its implications for food security, and innovative remediation solutions. A multi-faceted strategy integrating detection tools, advanced remediation technologies, and policy initiatives is proposed to mitigate PFAS contamination while ensuring sustainable agricultural practices. A significant threat to global agricultural, public health, and food security the AI technologies revolutionizing environmental sustainability by developing machine learning algorithms, predictive statistics, and data analysis tools. Technologies are enhancing ecosystem management, advancing environmental research, providing digital solutions to complex environmental problems, and generative and using AI in Sustainability Environmental Education.
Keywords: 
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1. Introduction

The Per- and polyfluoroalkyl substances (PFAS) are Human-made, persistent organic pollutants that are used in a vast array of everyday products. Research on PFAS (Pollution Prevention and Control Systems) has highlighted the toxicity and contamination of synthetic chemicals in ecosystems through waste outputs, (Winchell et al.2021). PFAS (per- and polyfluoroalkyl substances) have become synonymous with environmental resilience and contamination persistence. Over the past decade, research has shown that PFAS contamination has significant impacts on human health, reproductive performance, and development (Sivagami et al.2023), despite the increasing body of scientific knowledge, PFAS have become ubiquitous and present in various environmental matrices, (Falandysz et al., 2024).
Since their introduction in the mid-20th century, these compounds have been extensively used in industrial and consumer products, including nonstick cookware, firefighting foams, textiles, and food packaging, due to their exceptional heat resistance, chemical stability, and hydrophobic properties. Technological advancements have led to a dramatic increase in understanding and tools for detecting PFAS, leading to increased scientific recognition of their toxicity and environmental impact (Sivagami et al.2023; Said and El, 2024). PFAS contamination, its effects on soil fertility, water quality, and food safety, and the broader implications for Europe’s food security, (Lazova & Adamopoulos, 2024). As a result, research is focusing on environmental fate, ecotoxicology (Koulini et al.2024), and source characterization. Historically, PFAS have received little regulatory interest and have not been widely monitored by governments, (Prasad & Elchuri, 2023).
However, as global awareness increases, PFAS contamination is now associated with geopolitical disputes and people’s rights to clean food and water (Adamopoulos et al., 2024a; Peritore et al.2023). Research projects are interdisciplinary in nature, addressing complex issues and addressing knowledge gaps in PFAS impact science and management, (Sivagami et al.2023; Koulini et al.2024). Artificial intelligence is being recognized as a potential solution to sustainability challenges, and can be a powerful tool for sustainability-focused researchers (Mijwil et al., 2024), addressing global PFAS problems and strategic end-of-pipe pollution, (Gerardu et al.2023).The intersection between big tech companies and AI and PFAS research is crucial for both research and policy, (Winchell et al.2022; Bolan et al.2021). Predictive statistics and advanced technologies are revolutionizing the field of environmental sustainability, these tools enable the development of machine learning algorithms (Bibri et al.2024), enabling the management of ecosystems and advancing research in areas such as mine/pan-spectral and hydro-biological sciences, (Ditria et al.2022). Artificial intelligence is increasingly being used in environmental management, particularly in waste management (Chen et al.2023), this involves feature extraction, data reduction, intelligent prediction, classification models, and data visualization, (Shivaprakash et al.2022). PFAS are often referred to as “forever chemicals” because they resist degradation, persist in soil and water, and bioaccumulate in living organisms. The widespread use and improper disposal of PFAS have resulted in contamination hotspots worldwide. These hotspots are particularly pronounced in industrialized regions where manufacturing, waste management, and agriculture intersect.
Studies indicate that PFAS can migrate through soil and water systems, infiltrating crops, livestock, and, ultimately, the food chain. In Europe, PFAS contamination poses a serious threat to agricultural sustainability, particularly in regions with intensive farming practices or proximity to industrial zones, (Adamopoulos et al., 2024a).

Aims and Scope

This study explores the multifaceted challenges posed by PFAS contamination in Europe’s agricultural systems. The primary aim is to assess the scope of PFAS contamination, its effects on soil fertility, water quality, and food safety, and the broader implications for Europe’s food security. By integrating current research and case studies, the paper examines feasible remediation solutions that align with the European Union’s goals under the Green Deal and the Chemical Strategy for Sustainability.

2. Methods and Materials

2.1. Literature Current State of PFAS Contamination in Europe

2.1.1. Sources of Contamination

Understanding the sources of PFAS contamination is critical for targeted remediation and policy development. In Europe, these sources primarily include:

2.1.2. Industrial Emissions

The production of textiles, firefighting foams, nonstick cookware, and other PFAS-based products releases these substances into the environment. Factories that manufacture these goods often discharge untreated wastewater containing PFAS directly into local water bodies or soil. Studies have identified elevated PFAS levels in regions with chemical manufacturing plants, such as those in Belgium and Germany. These emissions often lead to persistent contamination of nearby agricultural lands due to surface runoff and atmospheric deposition.

2.1.3. Agricultural Practices

Biosolids and Fertilizers: The application of biosolids (treated sewage sludge) to agricultural lands is a significant contributor. Due to wastewater treatment processes that concentrate these chemicals, biosolids often contain high levels of PFAS. This introduces PFAS into soils, where they can leach into crops and groundwater.
Contaminated Irrigation Water: Many European rivers, including the Rhine and Seine, have been identified as carrying PFAS contamination from industrial discharges upstream. When farmers use these water sources for irrigation, PFAS are transferred into the soil and taken up by plants.

2.1.4. Waste Mismanagement

Improper disposal of PFAS-containing products exacerbates the problem. Landfills without adequate lining and leachate collection systems allow PFAS to seep into the ground. Incineration of PFAS products at suboptimal temperatures can release them into the atmosphere, where they return to the soil and water through precipitation.

Regulatory Landscape

Europe has taken proactive steps to address PFAS contamination through ambitious policy frameworks like the European Green Deal and the REACH Regulation. While these efforts have laid the groundwork for controlling PFAS use and limiting contamination, significant challenges remain in monitoring, enforcement, and the development of scalable remediation solutions.

The European Green Deal

The European Green Deal, adopted in 2019, aims to make the EU climate-neutral by 2050 while addressing pollution and sustainability issues across industries. PFAS contamination, particularly in agricultural and water systems, has been identified as a key priority under its zero-pollution ambition.
Key elements include:
Chemical Strategy for Sustainability (CSS): The CSS within the Green Deal outlines stricter controls on harmful chemicals, including PFAS. The strategy prioritizes eliminating non-essential PFAS uses and reducing their prevalence in consumer and industrial products (European Commission, 2020).
Circular Economy Action Plan: This initiative seeks to reduce PFAS in waste streams to prevent reintroduction into the environment, especially in agriculture, where biosolids may contain PFAS.
Zero Pollution Action Plan: This plan targets contamination hotspots and includes funding for PFAS research and mitigation technologies, particularly in vulnerable ecosystems like farmland and water sources.
Gaps in Implementation:
Insufficient Monitoring: Existing monitoring networks often fail to capture PFAS hotspots in rural or agricultural regions, which are most affected.
Lack of Coordination: Member states implement Green Deal objectives at varying speeds, resulting in inconsistent PFAS mitigation strategies across borders (Goldenman et al., 2019).

The REACH Regulation

The Registration, Evaluation, Authorisation, and Restriction of Chemicals (REACH) Regulation is one of the EU’s most comprehensive chemical control policies. Under REACH, several PFAS chemicals, including perfluorooctanoic acid (PFOA) and its salts, have been restricted or banned (ECHA, 2020). Recent proposals aim to broaden restrictions to cover all non-essential PFAS uses across industries.
Key Achievements:
Regulatory Control: The listing of certain PFAS as Substances of Very High Concern (SVHCs) has significantly reduced their production and import within the EU.
PFAS Restriction Proposal: A joint effort by Germany, Denmark, the Netherlands, Norway, and Sweden seeks to impose a group-wide restriction on PFAS under REACH, a landmark step toward comprehensive regulation (ECHA, 2020).
Challenges in Enforcement:
Limited Resources: Many member states lack the technical capacity and financial resources to enforce REACH regulations effectively in agricultural areas.
Data Gaps: Monitoring and reporting of PFAS concentrations in agricultural soils, water, and crops remain inconsistent, complicating enforcement efforts (Vierke et al., 2012).

Policy Gaps and Opportunities

While existing frameworks represent significant progress, critical gaps hinder their effectiveness in addressing PFAS contamination in farmlands:
Inadequate Thresholds for Agricultural Soils: Unlike drinking water, which has established PFAS limits, many EU countries lack enforceable thresholds for PFAS concentrations in agricultural soils.
Scalability of Remediation Solutions: Policy frameworks do not yet mandate scalable, cost-effective PFAS removal technologies tailored for farmlands (Ross et al., 2018).
Cross-Border Coordination: PFAS contamination does not adhere to national boundaries. Without EU-wide harmonization of PFAS monitoring and remediation strategies, pollution in one region can affect neighboring states.
Future Directions:
Harmonized Monitoring: Develop an EU-wide network of PFAS monitoring stations with standardized protocols to identify hotspots in real time.
Funding for Innovation: Increase funding for research into advanced PFAS remediation technologies, such as plasma-based and electrochemical methods, to enable scalable solutions for farmlands (Zhao et al., 2018).
Community Engagement: Incorporate local farmers and communities into PFAS monitoring programs to enhance data collection and raise awareness.
While the European Green Deal and REACH Regulation represent commendable steps toward mitigating PFAS contamination, a more coordinated and aggressive approach is necessary to address challenges in agricultural contexts. Enhancing monitoring infrastructure, harmonizing regulatory thresholds, and investing in scalable solutions are essential for safeguarding Europe’s food supply and ecological health.

Extent of Contamination

Scientific studies have highlighted alarming levels of PFAS in European agricultural hotspots.

Geographic Hotspots

Belgium and the Netherlands: Soils near industrial sites such as 3M facilities have shown PFAS concentrations exceeding 1,000 ng/kg.
Italy: Agricultural areas near Vicenza report PFAS contamination in rice and vegetables due to groundwater pollution.
Scandinavian Countries: Despite strict environmental regulations, regions with biosolid applications have measurable PFAS in grazing fields.

Bioaccumulation in Crops and Water Sources

Studies confirm that PFAS readily accumulates in crops like wheat, rice, and leafy vegetables, particularly in acidic soils, where its mobility is enhanced. Livestock drinking contaminated water also bioaccumulates PFAS, transferring them to dairy and meat products.

2.2. Methodology

Innovative Mathematical Modeling for PFAS Spread

To predict the extent of PFAS contamination in agricultural lands, we propose a Contaminant Transport and Bioaccumulation Algorithm (CTBA) that integrates:
Diffusion-Advection Equation for PFAS migration in soil:
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where:
C = PFAS concentration,
D = diffusion coefficient,
Preprints 149337 i002 = advection velocity (water flow),
k = degradation rate (assumed negligible for PFAS due to persistence).
Bioaccumulation Index (BAI) to estimate PFAS uptake in crops:
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where:
Cplant = PFAS concentration in plant tissues,
Csoil = PFAS concentration in soil.
Risk Factor (RF) combining contamination and exposure probabilities:
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Where:
PC = contamination probability,
PE = exposure likelihood (human or ecological),
LT = latency threshold for health effects.
This algorithm can guide policy and remediation by identifying high-risk zones and prioritizing intervention strategies.

Detailed Modeling Approach

This appendix provides the mathematical formulations, computational frameworks, and assumptions underlying the modeling approach for PFAS transport, bioaccumulation, and risk assessment described in the main text.
A.1 Contaminant Transport in Soil and Water
Diffusion-Advection Equation:
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where:
  • C(x, y, z, t): PFAS concentration in soil or water at location (x, y, z) and time t,
  • D: Diffusion coefficient (m2/s),
  • Preprints 149337 i006: Laplacian operator describing diffusion,
  • Preprints 149337 i002: Advection velocity vector (m/s),
  • k: Decay constant (/s)
Boundary Conditions:
  • Surface Boundary (z=0z = 0): PFAS concentration is highest at the source. C(x, y, 0, t) = Csourceet/trelease where trelease is the time for PFAS release.
  • Groundwater Interaction (z = zgw): PFAS mixing with groundwater.
    Preprints 149337 i007
    .
  • Domain Edges (x,yx, y boundaries)Domain Edges (x,yx, y boundaries): Preprints 149337 i008.
Numerical Implementation: The finite difference method (FDM) is used to approximate spatial derivatives. For instance, the Laplacian term in 1D:
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A.2 Bioaccumulation in Crops
Bioaccumulation Index (BAI):
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where:
  • Cplant: PFAS concentration in plant tissue,
  • Csoil: PFAS concentration in the root zone.
Partition Coefficients: The plant uptake model uses soil-to-root (Ksoil-root) and root-to-shoot Kroot-shoot coefficients:
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Typical values for Ksoil-root and Kroot-shoot are derived from experimental data.
Crop-Specific Uptake: Adjust Ksoil-root and Kroot-shootK_{\text{root-shoot}} based on crop type:
  • Leafy vegetables: High Kroot-shoot,
  • Root vegetables: High Ksoil-root.
A.3 Risk Assessment Model
Risk Factor (RF):
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where:
  • PC: Probability of contamination,
  • PE: Exposure probability,
  • LT4: Latency threshold (time before observable health impacts).
Probability Components:
  • PC: Based on contamination levels from transport models: Preprints 149337 i013 Where Cthreshold is the regulatory limit for PFAS in soil.
  • PE: Exposure likelihood considering human or ecological interactions:
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  • LT: Estimated from toxicological studies of PFAS.
A.4 Sensitivity Analysis
Sensitivity analysis is performed by varying critical parameters:
  • Diffusion Coefficient (D):
    Range: 10−6 to 10−9 m2/s,
    Impact: Faster or slower PFAS spread.
  • Advection Velocity (Preprints 149337 i002):
    Range: 0.01 to 1.0 m/s
    Impact: Directional PFAS migration.
  • Uptake Coefficients (Ksoil-root, Kroot-shoot):
    Adjust for crop type and soil conditions.
A.5 Computational Framework
Python Implementation Overview:
  • Transport Simulation:
    Define spatial domain (Lx, Ly, Lz) and grid resolution (Nx, Ny, Nz).
    Apply FDM for spatial derivatives.
  • Bioaccumulation Prediction:
    Link Csoil from transport model to tCplant.
  • Risk Mapping:
    Use GIS tools to visualize RFRF spatially.
A.6 Validation and Case Studies
  • Validation data from European farmlands (e.g., PFAS hotspots in Belgium and Italy).
  • Compare modeled concentrations (Csoil, Cplant) with measured values.
  • Use case studies to refine parameters and verify accuracy.

Case Studies, Tools and Applications

Pilot Projects: Lessons from Scandinavian and European Farmlands

Pilot projects across Europe, particularly in Scandinavian countries, have demonstrated the effectiveness and adaptability of innovative PFAS remediation techniques. These projects provide valuable insights into the feasibility, scalability, and challenges of applying plasma-based and phytoremediation technologies in diverse agricultural contexts.

Scandinavian Farmlands: Plasma-Based Remediation

Scandinavian countries, known for their stringent environmental standards, have pioneered plasma-based remediation of PFAS-contaminated soils. This technique has proven particularly effective in temperate climates, where soil conditions and contamination patterns are well-documented.
Case Study: Sweden
  • Objective: Remediate farmland contaminated by decades of industrial activity where PFAS levels exceeded 500 ng/kg in surface soil.
  • Methodology:
    Cold plasma systems were deployed on-site to treat excavated soil.
    Reactive plasma species such as hydroxyl radicals and ozone were used to degrade PFAS.
  • Outcomes:
    Over 85% reduction in total PFAS concentrations within three weeks of treatment.
    Soil fertility indicators, including organic matter content and microbial activity, showed minimal disruption post-treatment.
    Cost-effectiveness: Plasma-based systems proved 20% more economical than thermal desorption due to lower energy requirements (Ross et al., 2018).
Lessons Learned:
  • Plasma-based methods are ideal for localized hotspots with high PFAS concentrations.
  • The technology’s non-invasive nature minimizes environmental disruption.

Phytoremediation Success in Denmark 

Denmark has implemented large-scale phytoremediation projects to address PFAS contamination in agricultural soils. This technique uses plants to extract, stabilize, or degrade contaminants.
Case Study: Willow and Poplar Plantations
  • Objective: Mitigate PFAS contamination in soils irrigated with PFAS-laden wastewater.
  • Methodology:
    Willows (Salix spp.) and poplars (Populus spp.) were planted on contaminated sites.
    The trees were monitored for PFAS uptake in roots, shoots, and leaves.
    Outcomes:
  • PFAS accumulation rates in plant tissues averaged 15% for perfluorooctane sulfonate (PFOS) and 10% for perfluorooctanoic acid (PFOA) over two growing seasons.
    Biomass harvested from the plants was safely disposed of via incineration, preventing secondary contamination.
    The cost of phytoremediation was significantly lower than that of other methods: approximately €15,000 per hectare, compared to €50,000 for chemical extraction (Goldenman et al., 2019).
Observations:
  • Phytoremediation is a cost-effective solution for diffuse, low-level PFAS contamination.
  • The approach is eco-friendly and enhances soil health over time.

Comparative Analyses Across Europe

Comparative studies have highlighted the adaptability of plasma-based and phytoremediation techniques to diverse soil types and climatic conditions across Europe. Key findings include:
Plasma-Based Remediation:
  • Soil Type Suitability: Effective in sandy and loamy soils, where PFAS mobility is higher.
  • Climate Considerations: High humidity levels in temperate climates enhance the efficiency of plasma-generated reactive species.
  • Scalability: Plasma systems can be adapted for mobile units, enabling in-situ treatment in remote areas.
Phytoremediation:
  • Soil Type Suitability: Performs well in organic-rich soils, which support robust plant growth.
  • Long-Term Benefits:
    Restores soil ecosystems while reducing PFAS levels.
    Provides additional economic benefits through biomass production for energy or other uses.
Case Study: Italy
  • A pilot project in Lombardy, Italy, used hybrid approaches combining phytoremediation and bioaugmentation. Engineered microbes were introduced into the root zones of poplars to enhance PFAS degradation. Results showed a 50% reduction in PFAS levels in soil within two years (Liu et al., 2019).

Challenges and Recommendations

While the pilot projects demonstrate promising results, challenges remain:
  • Scalability: Adapting these technologies for large-scale contamination requires significant investment.
  • Timeframes: Phytoremediation is slower than other techniques, making it less suitable for urgent remediation needs.
  • Integration of Methods: Combining techniques, such as plasma remediation with adsorption or phytoremediation with bioaugmentation, yields better results but increases complexity.
Future Recommendations:
  • Expand pilot projects to regions with different soil and climate conditions, such as Southern Europe.
  • Integrate IoT sensors and AI-driven models to monitor real-time remediation progress and optimize resource allocation.
  • Increase public and private funding to scale up these technologies for widespread use.

3. Results

3.1. Impact on the Future Food Supply

PFAS contamination poses a multifaceted threat to Europe’s food supply chain, affecting crop yields, livestock quality, and economic stability. The persistent nature of PFAS in soil and water exacerbates these issues, creating long-term challenges for sustainable agriculture and food security.

Bioaccumulation in Crops

PFAS infiltrates plants primarily through uptake from contaminated soil and irrigation water. This process depends on several factors, including soil composition, water quality, and plant physiology.

Mechanisms of PFAS Uptake:

Soil-to-Root Transfer: PFAS binds to soil particles, but some remain in pore water, where plant roots take them up.
Translocation to Edible Parts: PFAS molecules move from roots to shoots and accumulate in leaves, grains, and fruits, with varying degrees depending on the plant type.
Impact on Nutritional Value and Yield: Studies indicate that elevated PFAS levels reduce plant growth and photosynthetic efficiency, leading to lower crop yields (Ghisi et al., 2019). For instance:
In wheat, PFAS exposure decreased grain size and protein content by up to 20%.
In leafy vegetables like lettuce, PFAS reduced chlorophyll content, stunting growth by approximately 15%.

Livestock Contamination

Livestock exposed to PFAS-contaminated feed or water exhibits significant bioaccumulation in their tissues, milk, and eggs.
Pathways of Exposure:
Ingestion of Contaminated Feed: Crops grown in PFAS-affected soil introduce these chemicals into animal diets.
Water Contamination: PFAS in drinking water further contributes to accumulation in animals.
Consequences for Livestock Products:
Milk: PFAS levels in milk can exceed safety thresholds, leading to market restrictions (Göckener et al., 2020).
Meat: Muscle tissues retain PFAS, particularly long-chain compounds, reducing their safety for consumption.
Eggs: High PFAS levels in poultry feed translate to significant contamination in eggs.
Economic Implications
PFAS contamination imposes both direct and indirect economic costs, undermining agricultural sustainability and market competitiveness.
Reduced Agricultural Productivity:
Lower crop yields due to PFAS-induced growth inhibition.
Decreased livestock productivity from health impacts, including reduced milk and egg yields.
Remediation and Compliance Costs:
Farmers face high costs to remediate contaminated soils and water sources.
Complying with stricter safety standards for PFAS in food products adds further financial burdens.
Healthcare Expenditures:
Increased public health costs arise from exposure to PFAS-contaminated food linked to conditions such as cancer, thyroid disorders, and developmental issues (Goldenman et al., 2019).
Data Representation
Table 1. PFAS Bioaccumulation in Crops and Livestock.
Table 1. PFAS Bioaccumulation in Crops and Livestock.
Category PFAS Uptake Pathways Impacts on Yield/Quality Economic Impact
Crops Soil-to-root transfer; irrigation water Reduced grain size (20%), lower protein content Loss of income from reduced yield
Dairy Contaminated feed and water Elevated PFAS levels in milk; export restrictions Market losses from unsellable products
Meat Feed and water contamination Muscle tissue contamination; health risks to consumers Decreased market demand
Eggs PFAS in poultry feed High PFAS concentration in eggs Regulatory non-compliance fines
Table 2. Prevalence of Health Conditions Linked to PFAS Exposure.
Table 2. Prevalence of Health Conditions Linked to PFAS Exposure.
Health Condition High Exposure (%) Low Exposure (%)
Elevated Cholesterol 25 15
Thyroid Disease 10 5
Kidney Cancer 2 1
Testicular Cancer 1.5 0.5
Data Source: Studies have shown associations between PFAS exposure and health issues such as increased cholesterol levels, thyroid disease, and certain cancers.
PFAS Levels in Human Blood Across Regions Data Source
The PFAS exposure data comes from multiple authoritative sources:
Agency for Toxic Substances and Disease Registry (ATSDR):
Conducted PFAS exposure assessments in highly contaminated regions across the USA, such as Parkersburg, West Virginia, where chemical manufacturing facilities have operated for decades.
National Institute of Health (ISS), Italy:
Focused on the Veneto region, known for widespread PFAS contamination due to industrial discharges into water systems.
Greek National Organization for the Provision of Health Services (ΕOPΥΥ):
Reported elevated PFAS levels among Greek populations, identifying age-specific vulnerabilities in children, adolescents, adults, and the elderly.
Table 3. Data of PFOs from different regions and countries.
Table 3. Data of PFOs from different regions and countries.
Region PFOS (ng/mL) PFOA (ng/mL) PFHxS (ng/mL)
Parkersburg, USA 12 8 6
Veneto, Italy 10 7 5
National Avg., USA 4 2 1
Greek Avg. (ΕOPΥΥ) 12 Not Reported Not Reported
PFAS Compound Overview
  • PFOS (Perfluorooctane Sulfonate):
    Found in high concentrations in industrial regions due to its use in surface treatments, firefighting foams, and coatings.
    Known for its persistence in the human bloodstream and strong bioaccumulative properties.
  • PFOA (Perfluorooctanoic Acid):
    Historically linked to nonstick cookware and waterproof clothing. Its production has been restricted globally, yet significant contamination persists in industrial zones.
  • PFHxS (Perfluorohexane Sulfonate):
    A less well-known compound but prevalent in firefighting foams. It poses a high risk of bioaccumulation, particularly in aquatic environments.
Analysis
  • Parkersburg, USA:
    Proximity to chemical manufacturing facilities (e.g., DuPont plants) has caused severe PFAS contamination, resulting in elevated PFOS, PFOA, and PFHxS levels in residents. Data from the C8 Health Project showed that long-term exposure to these compounds exceeded national averages, correlating with increased health risks like kidney and testicular cancer.
  • Veneto, Italy:
    Industrial discharges into local waterways have led to high PFAS levels in groundwater, significantly impacting drinking water supplies. Populations in Veneto exhibit PFOS and PFOA concentrations double that of the U.S. national average, primarily due to legacy pollution from chemical industries.
  • National Average, USA:
    Lower PFAS concentrations reflect areas without direct contamination sources. Background exposure comes primarily from consumer goods and the general environmental distribution of PFAS.
  • Greek Avg. (ΕOPΥΥ):
    Although PFOS levels in Greek populations align with hotspots like Parkersburg, no substantial data is available for PFOA or PFHxS. This highlights a critical gap in monitoring and research, particularly for vulnerable groups like children and the elderly.
Key Takeaways
  • Localized Impact: Parkersburg and Veneto demonstrate the severity of industrial contamination, underscoring the need for focused remediation efforts.
  • Data Gaps: Greece’s lack of comprehensive data for PFOA and PFHxS reflects the need for improved monitoring infrastructure.
  • Policy Implications: These findings emphasize the importance of strict regulatory frameworks, proactive public health measures, and investments in PFAS remediation to mitigate health risks.
Figure 1. PFAS Levels in Greek Populations (ΕΟPΥΥ Analysis).
Figure 1. PFAS Levels in Greek Populations (ΕΟPΥΥ Analysis).
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PFAS Levels in Greek Populations (ΕOPΥΥ Analysis):
  • It specifies that the data represents populations within Greece:
    Children (0-12): 12 ng/mL
    Adolescents (13-18): 10 ng/mL
    Adults (19-64): 8 ng/mL
    Elderly (65+): 6 ng/mL
Figure 2. PFAS levels in Greek populations versus the EU average.
Figure 2. PFAS levels in Greek populations versus the EU average.
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A comparative bar chart showing PFAS levels in Greek populations versus the EU average:
  • Greek Data (ΕOΠΥΥ Analysis):
    Children (0-12): 12 ng/mL
    Adolescents (13-18): 10 ng/mL
    Adults (19-64): 8 ng/mL
    Elderly (65+): 6 ng/mL
  • EU Average:
    Children (0-12): 10 ng/mL
    Adolescents (13-18): 8 ng/mL
    Adults (19-64): 7 ng/mL
    Elderly (65+): 5 ng/mL
  • High PFAS Exposure:
    Elevated Cholesterol: 25%
    Thyroid Disease: 10%
    Kidney Cancer: 2%
    Testicular Cancer: 1.5%
  • Low PFAS Exposure:
    Elevated Cholesterol: 15%
    Thyroid Disease: 5%
    Kidney Cancer: 1%
    Testicular Cancer: 0.5%
Figure 3. Prevalence of specific health conditions in populations with high versus low PFAS exposure. The bar chart compares the prevalence of specific health conditions in populations with high versus low PFAS exposure:.
Figure 3. Prevalence of specific health conditions in populations with high versus low PFAS exposure. The bar chart compares the prevalence of specific health conditions in populations with high versus low PFAS exposure:.
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Figure 4. PFAS Levels in Human Blood Across Regions.
Figure 4. PFAS Levels in Human Blood Across Regions.
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The bar chart shows PFAS Levels in Human Blood Across Regions:
PFOS (Perfluorooctane Sulfonate):
  • Parkersburg, USA: 12 ng/mL
  • Veneto, Italy: 10 ng/mL
  • National Average, USA: 4 ng/mL
  • Greece: 12 ng/mL
PFOA (Perfluorooctanoic Acid):
  • Parkersburg, USA: 8 ng/mL
  • Veneto, Italy: 7 ng/mL
  • National Average, USA: 2 ng/mL
  • Greece: No reported data
PFHxS (Perfluorohexane Sulfonate):
  • Parkersburg, USA: 6 ng/mL
  • Veneto, Italy: 5 ng/mL
  • National Average, USA: 1 ng/mL
  • Greece: No reported data
Figure 5. Remediation Costs for Europe vs. the USA.
Figure 5. Remediation Costs for Europe vs. the USA.
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The comparison chart shows Remediation Costs for Europe vs. the USA:
  • Europe (in Euros):
    Plasma-Based: €60,000 per hectare
    Phytoremediation: €15,000 per hectare
    Thermal Desorption: €80,000 per hectare
    Bioaugmentation: €40,000 per hectare
  • USA (in USD):
    Plasma-Based: $70,000 per hectare
    Phytoremediation: $20,000 per hectare
    Thermal Desorption: $90,000 per hectare
    Bioaugmentation: $45,000 per hectare
The comparison chart shows Lost Farmland Due to PFAS Contamination: Europe vs USA:
  • Europe: Approximately 300,000 hectares of farmland were lost to PFAS contamination.
  • USA: Approximately 200,000 hectares of farmland were lost to PFAS contamination.
Projected Farmland Loss Due to PFAS Contamination Over the Next 25 Years for Europe and the USA:
  • Europe:
    Starting at 300,000 hectares, increasing to 550,000 hectares over 25 years.
  • USA:
    Starting at 200,000 hectares, increasing to 400,000 hectares over 25 years.
The projections emphasize the urgency of addressing PFAS contamination to prevent significant agricultural losses. The pie Figure 6—charts illustrate the impacts of PFAS contamination:
  • Impact on Food Supply (Europe):
    80% of the food supply remains available.
    20% is lost due to farmland contamination over 25 years.
  • Healthcare Cost Increase Due to PFAS:
    85% represents baseline healthcare costs.
    15% is attributed to the increase in costs due to PFAS-related health conditions.
Figure 7. Impact of PFAS Contamination.
Figure 7. Impact of PFAS Contamination.
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Remediation Strategies for European Farmlands
Detection Tools for PFAS Contamination
The ability to accurately detect PFAS contamination in soil, water, and agricultural environments is critical for mitigation efforts. Advanced detection tools such as AI-integrated mapping and biomarker technologies are revolutionizing the field by enabling real-time, cost-effective identification of PFAS hotspots. Below is a detailed expansion of these technologies, including their mechanisms, mathematical models, and potential applications.
AI Mapping
AI-integrated mapping tools utilize artificial intelligence to analyze spatial data and identify PFAS contamination hotspots. These systems combine geospatial technologies, machine learning, and sensor data to generate precise contamination maps.
How It Works:
  • Data Collection: Sensors collect data on soil and water PFAS concentrations, geophysical characteristics, and hydrology.
  • Data Integration: AI systems integrate datasets from various sources (e.g., remote sensing, ground-based sensors).
  • Hotspot Prediction: Machine learning algorithms predict contamination patterns and potential hotspots by analyzing spatial correlations and trends.
Mathematical Foundation: AI mapping often uses a combination of supervised and unsupervised learning techniques. For example:
  • Regression Models: Predict PFAS concentrations based on input variables such as soil permeability (PP) and distance to contamination source (d):
    Preprints 149337 i015
    where:
Cpredicted: Predicted PFAS concentration,
β0, β1, β2: Regression coefficients,
Preprints 149337 i016: Error term.
  • Spatial Clustering (K-Means): Identify clusters of high PFAS concentrations:
    Preprints 149337 i017
    where:
k: Number of clusters,
Ci: Data points in cluster i,
Xj: Position of data point j,
μi: Centroid of cluster ii.
Applications:
  • Field-Level Analysis: AI tools map PFAS concentrations on farms, enabling targeted remediation.
  • Policy Development: Governments use these maps to prioritize regions for intervention.
Innovative Example: A 2022 study implemented deep learning for PFAS detection by training convolutional neural networks (CNNs) on hyperspectral imaging data. This approach achieved 90% accuracy in identifying contaminated zones in test scenarios (Liu et al., 2022).
Biomarker Technology
Biomarker technology employs genetically engineered microorganisms to detect PFAS contamination. These microbes fluoresce or change color when exposed to PFAS, offering a cost-effective, field-deployable solution.
Mechanism:
  • Engineering Microorganisms:
    Genes responsible for producing fluorescent proteins (e.g., green fluorescent protein, GFP) are inserted into microbes.
    These genes are activated in the presence of PFAS, leading to a detectable fluorescence.
  • Detection Process:
    Microbes are introduced into soil or water samples.
    Fluorescence intensity correlates with PFAS concentration.
Mathematical Modeling: The fluorescence response of biomarkers can be modeled using the Michaelis-Menten equation:
Preprints 149337 i018
where:
  • v: Fluorescence intensity,
  • Vmax: Maximum fluorescence response,
  • Km: PFAS concentration at half-maximal fluorescence,
  • [S]: PFAS concentration in the sample.
Algorithmic Framework: To process fluorescence data:
  • Signal Processing: Use Fourier transforms to eliminate noise from fluorescence measurements.
  • Concentration Estimation: Apply regression models to correlate fluorescence intensity with PFAS concentration.
Containment and Post-Remediation Strategies for PFAS Mitigation
Effective containment and post-remediation strategies are critical to ensuring that PFAS contamination is fully addressed and ecosystems are restored to their natural state. These strategies focus on capturing byproducts, restoring soil health, and implementing monitoring systems to prevent recontamination and evaluate remediation success over time.
Containment of PFAS Byproducts
Closed-Loop Systems
Closed-loop systems are designed to capture and safely store PFAS breakdown products generated during remediation processes, such as thermal desorption or plasma-based treatments. These systems minimize the risk of secondary contamination and ensure that treated materials are safe for reuse.
Key Features:
Integrated Capture Mechanisms: Combines gas-phase filters, cryogenic traps, and activated carbon systems to capture volatilized PFAS during thermal or plasma treatments.
Recycling Capabilities: Treated water and soil are reintroduced into the environment only after thorough purification, promoting sustainability.
Case: In a pilot project in Sweden, a closed-loop system successfully captured over 95% of PFAS byproducts generated during soil heating, with the residual water meeting EU safety thresholds for reuse in agriculture (Goldenman et al., 2019).
Nanofiltration Membranes
Nanofiltration membranes are increasingly used to trap PFAS molecules in water, particularly during the treatment of contaminated groundwater or leachate. These membranes operate at a molecular level, allowing water molecules to pass through while retaining larger PFAS molecules.
Mechanism:
  • Nanofiltration membranes use pore sizes between 0.001 and 0.01 microns to block PFAS, particularly long-chain molecules.
  • Reverse osmosis is often employed in conjunction with nanofiltration for enhanced PFAS removal.
Advantages:
  • High efficiency, with removal rates exceeding 99% for long-chain PFAS.
  • Versatility in treating both water and leachate.
Challenges:
  • Disposal of concentrated PFAS-laden brine remains an issue but can be remediated.
  • Membrane fouling can reduce efficiency over time (Rahman et al., 2014).
Soil Restoration
Remineralization
After PFAS removal, soil often requires replenishment of minerals and organic matter to restore its fertility and structure. Remineralization focuses on balancing nutrient levels and enhancing soil health.
Approach:
  • Mineral Addition: Supplement the soil with essential minerals like calcium, magnesium, and phosphorus to correct deficiencies caused by PFAS removal processes.
  • Organic Amendments: Incorporate compost, biochar, or humic substances to improve soil organic matter and microbial activity.
Benefits:
  • Enhances water retention and aeration.
  • Promotes healthy root growth and plant productivity.
Case Study: A remediation project in Germany restored a PFAS-contaminated field by applying a biochar-mineral blend. The treated soil showed a 40% improvement in crop yield within two growing seasons (Ross et al., 2018).
Microbial Recolonization
The reintroduction of native or engineered microbiota is essential for rebuilding soil ecology after PFAS removal. Microbial recolonization restores the natural biochemical processes necessary for healthy soil ecosystems.
Methodology:
  • Selection of Microbes: Use a combination of native bacteria and fungi adapted to the local environment.
  • Delivery Systems: Spray or inject microbial solutions into the soil to ensure even distribution.
  • Monitoring: Assess microbial activity and diversity using soil DNA sequencing and metabolic profiling.
Advantages:
  • Promotes nutrient cycling and organic matter decomposition.
  • Reduces soil compaction and improves plant-microbe interactions.
Case: Engineered Pseudomonas putida strains were introduced into PFAS-remediated soils in Denmark, enhancing nitrogen fixation and improving soil fertility by 30% (Liu et al., 2019).
Monitoring Systems
IoT-Connected Sensors: IoT-connected sensors enable real-time monitoring of PFAS levels and soil health parameters, ensuring the long-term success of remediation efforts.
Key Features: Real-Time Data: Sensors measure PFAS concentrations, pH, moisture levels, and nutrient content. Remote Access: Data is transmitted to cloud-based platforms, allowing stakeholders to monitor conditions from anywhere. Automation: Automated alerts and reports help identify emerging issues quickly.
Applications: Track the effectiveness of remediation processes. Ensure compliance with regulatory thresholds for PFAS in soil and water.
AI-Driven Predictive Models: Artificial intelligence enhances long-term monitoring by predicting the behavior of residual PFAS and evaluating the risk of recontamination.
Modeling Approach: Use machine learning algorithms to analyze data from sensors, historical contamination patterns, and soil characteristics.Predict future contamination hotspots and recommend preventive measures.
Mathematical Model Case: A predictive algorithm based on logistic regression:
Preprints 149337 i019
where:
  • P(Chotspot): Probability of a contamination hotspot.
  • X1, X2, …, Xn: Predictor variables (e.g., soil PFAS levels, pH, rainfall).
  • β1, β2, …, βn: Regression coefficients.
Case Study: In the Netherlands, AI-driven models successfully predicted PFAS movement in agricultural zones, enabling targeted interventions that reduced contamination by 20% over two years (Goldenman et al., 2019).
Figure 8. The correlation between increasing Cost‐Benefit Analysis of PFAS Remediation.
Figure 8. The correlation between increasing Cost‐Benefit Analysis of PFAS Remediation.
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3.2. Findings the Challenges and Opportunities in PFAS Remediation

High Costs of Advanced Remediation Technologies

Advanced PFAS remediation technologies, such as plasma-based treatments, thermal desorption, and bioaugmentation, require significant upfront investment and operational expenditures. Depending on the chosen method and contamination levels, estimates for remediating PFAS-contaminated soil range from €50,000 to €100,000 per hectare (Goldenman et al., 2019). Advanced PFAS remediation technologies, like plasma-based treatments and thermal desorption, can cost between €50,000 and €100,000 per hectare, especially for small-scale farms or regions with widespread contamination. However, the true cost of inaction far outweighs the expense of remediation. PFAS contamination permanently renders farmland unsuitable for food production, leading to economic and social impacts. Abandoned farmland in Northern Europe has led to food shortages, increased reliance on imports, and economic losses exceeding €500 million over a decade. Importing food to compensate for lost arable land also introduces new costs, further burdening consumers. Despite the high remediation costs, they represent an investment in preserving irreplaceable resources critical to regional food supply chains.

Knowledge Gaps in PFAS Degradation Pathways and Long-Term Impacts

Recent advances in PFAS research have made significant progress in understanding degradation pathways and the potential long-term effects of residual contamination. However, gaps remain in understanding the toxicity and environmental persistence of secondary compounds, as well as the cumulative impact of PFAS on soil microbiomes and nutrient cycling. Addressing these knowledge gaps is crucial for developing safe and effective remediation technologies, (Ross et al., 2018).

Global

The global response to PFAS contamination has been uneven, the Stockholm Convention, a United Nations initiative, aims to phase out certain PFAS compounds, but implementation varies across countries. The lack of standardized thresholds complicates international cooperation, and developing nations lack infrastructure and financial resources, underscoring the need for global knowledge-sharing and funding mechanisms.

The United States

The United States has adopted a fragmented approach to addressing PFAS contamination, with the EPA focusing on enforceable standards and monitoring. State governments like Michigan and California have implemented stricter regulations, but face challenges like high remediation costs.

Europe

The EU has established robust frameworks for PFAS management, including the Green Deal and REACH regulation. These regulations focus on reducing PFAS and supporting innovative remediation technologies. However, disparities in enforcement and funding across member states hinder comprehensive PFAS control. Success stories from Denmark and Sweden demonstrate the effectiveness of plasma-based remediation and bioaugmentation.

Greece and Mediterranean Countries

In Greece, PFAS contamination awareness and remediation efforts are still in their early stages. The lack of enforceable regulations and monitoring infrastructure has left significant gaps in addressing contamination risks. Greece’s reliance on small-scale farms further complicates the issue, as these farms often lack the financial and technical resources to adopt advanced remediation technologies. The Mediterranean region faces unique challenges, including arid climates that limit natural PFAS attenuation and sandy soils that increase the risk of groundwater contamination. These factors necessitate tailored solutions, such as low-cost phytoremediation and bioaugmentation adapted to local conditions.

Opportunities in PFAS Remediation

Leveraging EU Green Deal Initiatives

The EU Green Deal provides a framework for scaling up PFAS remediation while promoting sustainable agricultural practices. Horizon Europe funding opportunities support research and pilot projects, reducing farmers’ financial burdens and enabling the adoption of advanced technologies. For example, integrating solar-powered thermal desorption systems aligns with both remediation and the EU’s renewable energy goals.

Collaboration Between Stakeholders

Public-private partnerships and cross-sector collaboration are critical for accelerating PFAS remediation. Partnerships between academia, industry, and policymakers can:
  • Facilitate knowledge sharing and reduce technological barriers.
  • Enable large-scale deployment of innovative solutions, such as plasma-based systems or hybrid remediation methods.
In Denmark, such collaborations have reduced PFAS levels in contaminated farmland by 85% while generating valuable data on scalability and cost-effectiveness (Liu et al., 2019).
The Cost of Inaction vs. the Value of Remediation
The cost of inaction must be contextualized against the irreversible consequences of leaving farmland contaminated. Current estimates suggest that 3% of agricultural land in the EU is already impacted by PFAS, resulting in an annual loss of 2.5 million tonnes of food output (Goldenman et al., 2019). Beyond economic losses, the ethical and environmental implications of failing to address PFAS contamination include threats to food security, public health, and ecological integrity. Investing in remediation ensures that agricultural land remains productive, reduces dependence on food imports, and protects rural communities from collapse. While the challenges are significant, proactive action offers a pathway to sustainable food systems and environmental recovery.
Key actions include training farmers and local residents to monitor PFAS levels using low-cost detection tools. Awareness campaigns educate communities about PFAS contamination risks and preventive measures. Public dashboards provide real-time data on PFAS levels and health impacts. Implementing these recommendations requires sustained commitment, collaboration, and partnerships to achieve 100% remediation of contaminated farmland and sustainable food production.

4. Discussion

Environmental research is increasingly utilizing AI to address PFAS pollution, trained with real-world data, can suggest solutions and support actionable decisions, (Stensson et al.). For instance, AI can estimate PFAS accumulation in human bloodstreams, detect leaching from food packaging, and predict PFAS transportation via air currents, (Di et al.2022). This collaboration between AI and environmental monitoring and regulatory practice has expanded beyond technical dialogues to developing prototype scenarios demonstrating how AI can be integrated into characterization efforts, (Draghi et al.2024). AI has the potential to revolutionize monitoring of PFAS transport and distributions, offering improved cleanup strategies, (Li & MacDonald Gibson, 2022). By utilizing neural networks and machine learning techniques (Hu et al.2023), AI can analyze new and historical data streams, enabling real-time monitoring systems, (Breitmeyer et al.2024). This integration of AI can predict future trends and provide just-in-time mitigation options (Tokranov et al.2024 ), making it an exciting prospect for monitoring PFAS in-situ, (Jeong et al.2024). Text data modeling is used to enhance solid waste management, with results consistent with environmental monitoring, (Tatarinov et al.2022). The use of AI in environmental science is growing, offering innovative solutions to address environmental problems and promote resilience in society, (Stahl, 2021). Research on emerging pollutants in the field of environmental science is focusing on ethical, legal, and environmental hygiene impacts from wastewaters and reuse water in communities , (Adamopoulo et al., 2023; Gill & Germann, 2022). Artificial intelligence is expected to play a crucial role in detecting and managing these pollutants (Yigitcanlar et al., 2021), demonstrating its potential to significantly improve the detection and management of pollutants in the future, (Dauvergne, 2022). AI plays a transformative role in environmental research, particularly in PFAS contamination. It has significantly improved modeling of PFAS presence in food and correlations around predicted values in environmental waters and sediments, (Tao et al.2024) . Ensemble regression modeling has shown a 50% decrease in human serum half-lives for six PFSAs (Iulini et al.2024) , while artificial neural networks have shown correlations in serum half-life predictions, (Li & MacDonald Gibson, 2022). AI increases the efficiency of research, providing quicker and more accurate reported results, offering new opportunities for environmental scientists, (Lei et al.2023). AI-driven solutions, utilizing machine learning and molecular simulations (Kibbey et al., 2021), are being utilized to predict and prioritize PFAS in various systems (Karbassiyazdi et al.2022), thereby enhancing their environmental relevance and facilitating life cycle assessments and hazard risk assessments, (Zhang & Zhang, 2022; Han et al.2023).The overarching challenge in AI and PFAS studies is the reliance on untrusted sources and statistical tests, (Feinstein et al.2021). This lack of quantitative measurements and comprehensive validation necessitates collaboration among diverse stakeholders to improve data quality, (Su et al.2024). Interdisciplinary approaches, considering both short and long-term goals, are needed to create less toxic PFAS, shifting the normal logic of isolating variables, (Li & MacDonald Gibson, 2022). Finally, the implications of climate change and extreme weather events (Adamopoulos et al. 2023c; Adamopoulos et al., 2024b), on water supplies and traditional water management in Europe must be emphasized (Adamopoulou et al., 2023), since they have a negative impact on public health, agriculture, and food safety, (Adamopoulos et al., 2022). The discussion above shows that incorporating AI into mitigating PFAS contamination and ecosystem risk is not without challenges, but it also provides enormous opportunities to reveal hidden insights and patterns, generate increasingly reliable predictions, and accelerate the development of sustainable management plans.

Recommendations

Addressing PFAS contamination in Europe’s agricultural sector requires strategic investments, robust regulatory frameworks, and active collaboration among stakeholders. The recommendations outlined here focus on creating sustainable, scalable, and inclusive approaches to remediate contaminated farmland and prevent future contamination. The EU is focusing on PFAS remediation and PFAS monitoring to combat contamination in agriculture. Key actions include increasing EU funding for research on cost-effective, scalable remediation technologies, strengthening regulatory frameworks to enforce PFAS monitoring, fostering public-private partnerships for comprehensive remediation, and promoting community involvement in PFAS monitoring and awareness. The EU Green Deal’s Chemical Strategy for Sustainability aims to accelerate the development of innovative PFAS remediation technologies, while REACH regulations must be enhanced to include stricter thresholds for PFAS levels in agricultural soils and water sources. Public-private partnerships can mobilize resources and expertise for large-scale PFAS remediation, while promoting community involvement builds trust and promotes sustainable agricultural practices. These actions aim to reduce costs, improve efficiency, and promote sustainable agricultural practices.

Future Directions

The developed world, natural sciences, and social sciences are all interrelated subjects that are critical to comprehending the built environment. By combining data scientists’ knowledge with insights from these domains, we can design effective policy initiatives to solve the pressing PFAS issues. It is critical to avoid dismissive rules and laws, instead focusing on cautious principles and dealing with the rebirth of history. The combination of human knowledge and AI capabilities has the potential to solve these complicated problems.

5. Conclusions

The requirement to address PFAS pollution in the environment and in communities is urgent. AI technology hold tremendous promise for environmental research. Implementing cross-disciplinary monitoring frameworks, top-down legislation, and analytical and remedial tools are all necessary for an effective response. Collaboration, democratic engagement, and self-management of affected communities are critical in decision-making processes. The rapid speed of AI advancement highlights the revolutionary potential of these technologies in combating PFAS contamination. Public Health in Europe faces a significant challenge in addressing PFAS contamination, which poses a significant environmental threat to food security and agricultural sustainability. These “forever chemicals” accumulate in soil, water, crops, and livestock, threatening food systems and community health. To combat PFAS contamination, a multi-pronged approach is needed, integrating innovative technologies like plasma-based remediation, bioaugmentation, and nanofiltration with comprehensive regulatory frameworks. Investing in research to develop cost-effective and scalable solutions is crucial, while regulatory reform and public-private partnerships can accelerate the deployment of advanced remediation technologies. Community engagement is also vital, as farmers, local residents, and other stakeholders must be equipped with the knowledge and tools to monitor contamination, participate in remediation efforts, and advocate for sustainable practices. Inaction will lead to escalating costs in terms of food imports, public health expenditures, and environmental degradation. By combining innovation, regulation, and community empowerment, Europe can lead the way in addressing PFAS contamination and ensuring the well-being of future generations.

Author Contributions

IA & AV had the original idea and developed the study protocol with support from JK, NS & GD. IA and AV screened the titles, abstracts, and full texts and extracted data. IA & AV did the risk-of-bias assessment and statistical analysis and wrote the initial draft of the manuscript. IA, JK, GD, ID, NS & AV contributed to the revision of the manuscript, provided critical feedback. IA supervised & project administration. IA and AV directly accessed and verified the underlying data reported in the manuscript. All authors had full access to all the data in the study and approved the final version.

Funding

No external funding was received for this study. All research efforts were conducted independently without financial support from governmental, non-governmental, or industry sources.

Institutional Review Board Statement

Informed Consent Statement

The authors stated that ethical approval of the research was carried out in accordance with the rules and current bioethics legislation, the study was carried out according to the Declaration of Helsinki.

Data Availability Statement

All data supporting this study’s findings are available upon reasonable request from the corresponding author.

Conflicts of Interest

The authors declare no conflict of interest.

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Figure 6. Lost Farmland Due to PFAS Contamination: Europe vs USA.
Figure 6. Lost Farmland Due to PFAS Contamination: Europe vs USA.
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