Seasonal trends of per- and polyfluoroalkyl substances in river water affected by fire training sites and wastewater treatment plants.
Chemosphere
; 308(Pt 3): 136467, 2022 Dec.
Article
en En
| MEDLINE
| ID: mdl-36116619
ABSTRACT
Fire-fighting training areas and wastewater treatment plants (WWTPs) are potential sources of per- and polyfluoroalkyl substances (PFASs) to the nearby aquatic environment. This study investigated seasonal variations of PFAS levels in two river catchments in Sweden; one impacted by Stockholm Arlanda Airport (Sites 1 and 2), and the other by WWTPs and a military airport (Uppsala) (Sites 3 and 4). Æ©PFAS concentrations were up to 61 (Sites 1 and 2) and 4 (Sites 3 and 4) times higher compared to the reference site. Distinct different seasonal trends were observed in the two catchments with higher ∑PFAS concentrations during the high water flow season at Site 1 compared to the low water flow season, whereas Sites 3 and 4 showed an inverse seasonal trend. This demonstrates that the pollution is mobilized during periods of high flow in the first catchment (Stockholm Arlanda Airport), while it is diluted during high flow in the second catchment (Uppsala). Average annual loads for ∑PFASs were estimated at â¼5.2 and â¼3.7 kg yr-1 for the catchment in Uppsala and Stockholm Arlanda Airport, respectively. Thus, both catchments add PFASs to Lake Mälaren, which is Sweden's most important source area for drinking water production.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Contaminantes Químicos del Agua
/
Agua Potable
/
Purificación del Agua
/
Fluorocarburos
Idioma:
En
Revista:
Chemosphere
Año:
2022
Tipo del documento:
Article
País de afiliación:
Suecia