Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Performance of Low-Cost Sensors for Air Pollution Measurements in Urban Environments. Accuracy Evaluation Applying the Air Quality Index (AQI)

Version 1 : Received: 28 May 2021 / Approved: 1 June 2021 / Online: 1 June 2021 (15:08:39 CEST)

A peer-reviewed article of this Preprint also exists.

Journal reference: Atmosphere 2021
DOI: 10.3390/atmos12101246


Most people living in Europe's cities are still exposed to levels of air pollution deemed harmful by the World Health Organization. In the modern world, air pollution is the foremost concern because of its impact in human health and economy. This strong connection appears gaining a lot of concern, driven by new installed low-cost electrochemical sensors monitoring systems. Highly accuracy, real-time monitoring, daily and yearly statistics, data access from experts or simple users, low-cost equipment and forecasting needs, enforce the market to develop new air quality monitoring systems using advanced technologies and protocols. In this study, a comparison via low-cost electrochemical sensors and of static, fixed site measurement monitoring station, is taking place in Athens, Greece, along with the data quality and Air Quality Index (AQI) including data accuracy and quality of data concerning adverse health effects due to air pollution. The findings presented in this work, relate to different flexible and affordable alternatives adopted during the evaluation and calibration of low-cost gas sensors for the monitoring. The significance of the positive results is particularly useful, especially considering the founding for interference, environmental conditions affections and air quality information including indexes and health recommendations for a specific location.


air quality; air pollution measurements; electrochemical sensors; low-cost sensors; AQI (Air Quality Index); Athens


EARTH SCIENCES, Atmospheric Science

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Comment 1
Received: 19 December 2021
The commenter has declared there is no conflict of interests.
Comment: Final version can be found here:
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