Investigation of Perfluoroalkyl Substances (PFASs) in Sediments from the Urban Lakes of Anqing City, Anhui Province, China

Abstract

Fifteen individual perfluoroalkyl substances (PFASs) were analyzed in 22 sediment samples collected from Anqing urban lakes (Anhui province, China) by ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). Total PFAS concentration was between 0.61 and 26 ng g dry weight. Perfluorooctane sulfonate (PFOS) was the dominant PFAS contaminant, with a concentration range of < 0.040-13 ng g. Results indicated higher total PFAS concentrations in lakes located to the northwest of Anqing City than in other regions. Adjacent chemical and industrial factories were hypothesized to be responsible for these higher PFAS levels in those lakes. In comparison to other measurements obtained from other lakes, PFAS concentrations in the urban lakes of Anqing City were relatively high.

Recent advances in the analysis of per- and polyfluoroalkyl substances (PFAS)—A review

“…Therefore, PFOA and PFOS was detected at 0.1-0.5 ppb and 0.1-2.0 ppb, respectively. Li et al (2017) performed UPLC/ESI-MS/MS to screen PFAS in sediment collected from different lakes. PFAS were extracted from dry sediment by ultra-sonication in methanol and obtaining the total concentration of PFAS from 0.61 ng/g to 26 ng/g (ppb).…”

PFAS: Ecological Implications, Remedial Actions and Ethical Considerations

“…Concentration was calculated from 0.1 -3.6 ppb and the recoveries reached up to 108 percent [66]. Li et al conducted UPLC/ESI-MS/MS to test PFAS in sediment collected from various lakes [67]. PFAS were recovered from dry sediment by ultra-sonication in methanol and getting the total concentration of PFAS from 0.61 -26 ppb [67].…”

“…Li et al conducted UPLC/ESI-MS/MS to test PFAS in sediment collected from various lakes [67]. PFAS were recovered from dry sediment by ultra-sonication in methanol and getting the total concentration of PFAS from 0.61 -26 ppb [67]. Additionally, strong spike recoveries (90% -100%) without matrix effects confirmed the method's validity and acceptance.…”