Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Traffic and industrial contributions of particle-bound PAHs during an air pollution event in Metropolitan Area of Medellin-Colombia: Inhalation intake risk during pregnancy

Jhon Fredy Narváez-Valderrama
* ORCID logo ,
Sandra Viviana Alzate-B
,
Vanessa Correa-Gil
,
Juan José García-L
,
Juan Mauricio Bedoya-Soto
ORCID logo ,
Francisco José Molina-P
ORCID logo ,
Gladys Guillermin A Pauta-Calle
,
Gabriela Belén Vázquez-Guillén
,
Carlos D. Ramos-Contreras
ORCID logo
Version 1 : Received: 7 September 2023 / Approved: 8 September 2023 / Online: 11 September 2023 (07:48:35 CEST)

A peer-reviewed article of this Preprint also exists.

Narváez-Valderrama, J.F.; Alzate-B, S.V.; Correa-Gil, V.; García-L, J.J.; Bedoya-Soto, J.M.; Molina-P, F.J.; Pauta-Calle, G.G.; Vázquez-Guillén, G.B.; Ramos-Contreras, C.D. Traffic and Industrial Contributions of Particle-Bound PAHs during an Air Pollution Event in the Metropolitan Area of Medellin-Colombia: Inhalation Intake Risk during Pregnancy. Atmosphere 2024, 15, 173. Narváez-Valderrama, J.F.; Alzate-B, S.V.; Correa-Gil, V.; García-L, J.J.; Bedoya-Soto, J.M.; Molina-P, F.J.; Pauta-Calle, G.G.; Vázquez-Guillén, G.B.; Ramos-Contreras, C.D. Traffic and Industrial Contributions of Particle-Bound PAHs during an Air Pollution Event in the Metropolitan Area of Medellin-Colombia: Inhalation Intake Risk during Pregnancy. Atmosphere 2024, 15, 173.

Abstract

Air pollution includes particle-bound Polycyclic Aromatic hydrocarbons (PAHs) which eventually reach the placenta triggering adverse perinatal outcomes by long-term exposure. Late-ly, air pollution has increased over the Metropolitan Area of Medellin-Colombia (MAMC) but its effects on pregnancy are still unknown. In this research, we made a real-time analysis of airborne total PAHs using a photoelectric sensor for residential places influenced by industrial and traffic sources contrasting southern and northern MAMC during the second peak of the bimodal ten-dency for PM2.5 emissions in this region. Additionally, we analyzed individual PAHs by GC/MS coupled to pressurized hot water extraction methodology. Data was applied in an Inhalation In-take Model to assess pregnancy exposure. The average concentration of PAHs over southern MAMC was three times higher than over northern MAMC where the abortion rate has been 1.4 times higher presented in database. Previous research found that PAHs act as an Endo-crine-Disrupting Chemical (EDC) during pregnancy and even heavy congeners could reside in umbilical cord blood. Finally, the annual series of abortion rates in the MAMC showed a signifi-cant correlation with the annual average levels of PM2.5 which are associate to PAHs. Although this significant correlation does not imply causality, our results suggest an important connection between both variables. This latter finding opens a gap in deeply understanding how regions with high PAHs-convergence influences abortion rates in MAMC.

Keywords

Air pollution; Polycyclic Aromatic Hydrocarbons (PAHs); Adverse Perinatal Out-come; Inhalation Intake model; Long-term Exposure

Subject

Environmental and Earth Sciences, Atmospheric Science and Meteorology

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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