Deep seepage of per- and polyfluoroalkyl substances through the soil of a firefighter training site and subsequent groundwater contamination
| Autor: | Virginie Boiteux, Christophe Rosin, Adeline Colin, Jean-François Munoz, Cristina Bach, Xavier Dauchy, Jessica Hemard |
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| Přispěvatelé: | Laboratoire d'hydrologie de Nancy (LHN), Agence nationale de sécurité sanitaire de l'alimentation, de l'environnement et du travail (ANSES), French Ministry of Health (DGS 216) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Environmental Engineering
Groundwater flow Water table Health Toxicology and Mutagenesis 0208 environmental biotechnology Aquifer 02 engineering and technology 010501 environmental sciences MESH: Flame Retardants 01 natural sciences Soil MESH: Soil Soil contamination Spring (hydrology) Environmental Chemistry Soil Pollutants Total oxidizable precursor method Per- and polyfluoroalkyl substance (PFAS) Fluorotelomer Firefighting foam Groundwater 0105 earth and related environmental sciences Flame Retardants geography Fluorocarbons MESH: Soil Pollutants geography.geographical_feature_category [CHIM.ORGA]Chemical Sciences/Organic chemistry Public Health Environmental and Occupational Health General Medicine General Chemistry Pollution 6. Clean water 020801 environmental engineering MESH: Groundwater MESH: Water Pollutants Chemical Alkanesulfonic Acids Environmental chemistry Firefighters Environmental science MESH: Sulfonic Acids Sulfonic Acids Water Pollutants Chemical Water contamination Water well Seepage through soil |
| Zdroj: | Chemosphere Chemosphere, Elsevier, 2019, 214, pp.729-737. ⟨10.1016/j.chemosphere.2018.10.003⟩ |
| ISSN: | 0045-6535 |
| DOI: | 10.1016/j.chemosphere.2018.10.003⟩ |
| Popis: | International audience; Per- and polyfluoroalkyl substances (PFASs) are utilized in specific firefighting foams. The objectives of this study were i) to map PFAS distribution in the soil and groundwater of a firefighter training site active for more than 3 decades, ii) to locate the main points of entry of PFASs into the aquifer and iii) to identify which PFASs seeped most deeply into the soil. A total of 44 soil cores and 17 groundwater samples were collected. Perfluorooctane sulfonate (PFOS), 6:2 fluorotelomer sulfonic acid (6:2 FTSA) and 6:2 Fluorotelomer sulfonamide alkylbetaine (6:2 FTAB) were the most predominant PFASs in surface soil. The highest total PFAS concentrations (up to 357 μg/g) were measured in two areas. Both areas were considered as potential points of entry of PFASs into the aquifer since PFASs were detected in soil 15 m below the surface, despite the presence of clay layers. The highest total PFAS concentrations were recorded in the monitoring wells located in the perimeter of the firefighter training site and in the spring located downgradient in the direction of groundwater flow. They ranged from 300 to 8300 ng/L. The fluorotelomer 6:2 FTAB was quantified in 6 monitoring wells, suggesting that this FT can reach a water table 20 m below the ground's surface. |
| Databáze: | OpenAIRE |
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