Does salinity mediate the toxicity of perfluorooctanesulfonic acid (PFOS) in an estuarine fish?
Mar Pollut Bull
; 203: 116446, 2024 Jun.
Article
en En
| MEDLINE
| ID: mdl-38703627
ABSTRACT
Perfluorooctanesulfonic acid (PFOS) is detected in estuarine environments, where salinity levels fluctuate regularly. We investigated the effects of salinity on the toxicity of PFOS in embryos and larvae of Cyprinodon variegatus. We crossed six PFOS treatments (0, 1-10,000 µg/L) with two salinities (10, 30 ppt). Larvae exposed to the highest concentration of PFOS under high salinity accumulated over twice the amount of PFOS compared to larvae maintained under low salinity. Embryonic survival was unaffected by PFOS, salinity, or their interaction. PFOS delayed time to hatch and increased salinity reduced time to hatch regardless of PFOS treatment; however, no salinity by PFOS interactions were observed. Conversely, PFOS and salinity interacted in the larval stage, with decreased survival at 30 ppt salinity. This is one of the first studies evaluating interactive effects of PFOS and high salinity and highlights the importance of assessing PFAS toxicity across life stages.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Contaminantes Químicos del Agua
/
Ácidos Alcanesulfónicos
/
Salinidad
/
Fluorocarburos
/
Larva
Límite:
Animals
Idioma:
En
Revista:
Mar Pollut Bull
Año:
2024
Tipo del documento:
Article
País de afiliación:
Estados Unidos