Biomonitoring of PAHs and PCBs in industrial, suburban, and rural areas using snails as sentinel organisms.

Autor: Al-Alam J; Civil Engineering Department, Lebanese American University, 309 Bassil Building, Byblos, Lebanon., Millet M; Institute of Chemistry and Processes for Energy, Environment and Health ICPEES, UMR 7515 Group of Physical Chemistry of the Atmosphere, University of Strasbourg, Strasbourg, France., Khoury D; Institute of Chemistry and Processes for Energy, Environment and Health ICPEES, UMR 7515 Group of Physical Chemistry of the Atmosphere, University of Strasbourg, Strasbourg, France., Rodrigues A; Institute of Chemistry and Processes for Energy, Environment and Health ICPEES, UMR 7515 Group of Physical Chemistry of the Atmosphere, University of Strasbourg, Strasbourg, France., Akoury E; Department of Natural Sciences, Lebanese American University, Chouran, Beirut, 1102-2801, Lebanon., Tokajian S; Department of Natural Sciences, Lebanese American University, Chouran, Beirut, 1102-2801, Lebanon., Wazne M; Civil Engineering Department, Lebanese American University, 309 Bassil Building, Byblos, Lebanon. mahmoud.wazne@lau.edu.lb.
Jazyk: angličtina
Zdroj: Environmental science and pollution research international [Environ Sci Pollut Res Int] 2024 Jan; Vol. 31 (3), pp. 4970-4984. Date of Electronic Publication: 2023 Dec 19.
DOI: 10.1007/s11356-023-31493-6
Abstrakt: There is a worldwide concern about the presence of persistent organic pollutants (POPs) in the environment because of their toxicity, bioaccumulation, and resistance to degradation. Various conventional monitoring techniques have been used to assess their presence in diverse environmental compartments. Most currently available methods, however, have limitations with regards to long-term monitoring. In the present work, juvenile Cornu aspersum (O. F. Müller, 1774) snails were tested in field microcosms as biomonitors for two major classes of organic pollutants, namely, polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs). The study assessed their deployment in one suburban, one rural, and two industrial sites over an 18-week period and monitored for temporal variations of 16 PAHs and 22 PCBs. Sampling was conducted once every 3 weeks. Targeted pollutants were extracted from the caged snails using the QuEChERS extraction procedure and subsequently analyzed using gas chromatography coupled to tandem mass spectrometry (GC-MS/MS). The results showed that the bioaccumulation of specific pollutants was site dependent; significantly higher levels of PCBs were observed at the industrial sites as compared to the suburban and rural ones. PAHs were bioaccumulated by the snails via ingestion of air and soil whereas PCBs were mainly bioaccumulated via soil contact and ingestion. The findings of this study indicate that C. aspersum is a reliable model organism for the biomonitoring of organic pollutants in air and soil compartments and can be used as part of an integrated environmental assessment.
(© 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
Databáze: MEDLINE
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