Characteristics of spatial distribution of perfluoroalkyl acids (PFAAs) and their precursors in the water samples from the Sihe River and the effluents of wastewater treatment plants
In order to investigate the pollution characteristics of perfluoroalkyl acids( PFAAs) and their precursors in the river water and the effluents of sewage treatment plants( STPs),the spatial distribution characteristics of PFAAs and their precursors and the contributions of these precursors to water contamination were systematically investigated based on the methods including the hydroxyl radical( ·OH) oxidation,the solid phase extraction and enrichment,and the ultra-performance liquid chromatography-tandem ...
1引言(Introduction)作为一类新型有机污染物,全氟烷基酸类化合物(Perfluoroalkyl Acids,PFAAs)在环境中具有较高的化学稳定性、生物积聚性及较难生物降解的特征(Giesy et al.,2002),近几十年来被广泛用于工业生产和日常生活等众多领域.在其生产和使用过程中,PFAAs通过多种途径