Occurrence and contamination profile of legacy and emerging per- and polyfluoroalkyl substances (PFAS) in Belgian wastewater using target, suspect and non-target screening approaches
Occurrence and contamination profile of legacy and emerging per- and polyfluoroalkyl substances (PFAS) in Belgian wastewater using target, suspect and non-target screening approaches
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DOI：
10.1016/j.jhazmat.2022.129378
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发表时间：
2022-09-05
影响因子：
13.6
通讯作者：
Covaci, Adrian
中科院分区：
文献类型：
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作者：
Jeong, Yunsun;Da Silva, Katyeny Manuela;Covaci, Adrian
随着人们对全氟烷基物质和多氟烷基物质(PFAS)健康风险的日益关注，对识别新出现的PFAS的需求也越来越大。本研究使用目标、可疑和非目标筛选方法，对比利时16个污水处理厂(WWTP)中遗留的和新兴的全氟辛烷磺酸进行了全面调查。全氟丁酸(PFBA)和全氟戊酸(PFPeA)是大多数地点的优势化合物，而全氟辛酸(PFOA)是安特卫普地区Deurne污水处理厂最主要的PFAS。使用可疑筛选方法，14个全氟辛烷磺酸被注明为置信度(CL)为4或更高，4个全氟辛烷磺酸被注明为CL2a和2b，包括水成膜泡沫塑料(AFFF)衍生的全氟辛烷磺酸。通过非靶标筛选，发现Deurne污水中含有n：3不饱和含氟羧酸化合物基团。使用人口归一化质量负荷(PNML)估计的集水区的人口暴露量显示，在污水处理厂Deurne的集水区，人口暴露量最高，这意味着该社区可能存在更高的全氟化铝暴露量。
With the growing concern regarding the health risks of per- and polyfluoroalkyl substances (PFAS), there is an increasing demand for the identification of emerging PFAS. This study provides a comprehensive investigation of legacy and emerging PFAS in 16 wastewater treatment plants (WWTPs) in Belgium using target, suspect, and non-target screening methods. Perfluorobutanoic acid (PFBA) and perfluoropentanoic acid (PFPeA) were the dominant compounds in most locations, whereas perfluorooctanoic acid (PFOA) was the most predominant PFAS in WWTP Deurne (Antwerp region). Using a suspect screening approach, 14 PFAS were annotated as confidence level (CL) of 4 or higher and 4 PFAS were annotated as CL 2a and 2b, including aqueous film forming foam (AFFF)-derived PFAS. The compound group of n:3 unsaturated fluorotelomer carboxylic acid was found using non-target screening in the wastewater from WWTP Deurne. Population exposure in a catchment area estimated using population-normalized mass loads (PNML) showed the highest value in the catchment area of WWTP Deurne, implying a potentially higher exposure to PFAS in this community.