Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6317233 | Environmental Pollution | 2015 | 10 Pages |
Abstract
This study evaluated the occurrence of 36 PPCPs in urban river water samples collected from Beijing, Changzhou and Shenzhen. Twenty-eight compounds were detected. Compounds found with highest median concentrations included: sulfadimethoxine (164Â ng/L), sulpiride (77.3Â ng/L), atenolol (52.9Â ng/L), and indomethacin (50.9Â ng/L). Antibiotic was the predominant class detected and contributed about half of the overall PPCPs contamination level. Effluents from wastewater treatment plants (WWTPs) were demonstrated to be the predominant pathways through which PPCPs entering into aquatic environment in all investigated areas. The ratio of persistent PPCPs like sulpiride and carbamazepine was identified to be feasible in tracing their contamination sources in rivers. Concentrations of most detected PPCPs showed significant positive correlations with total nitrogen and total phosphorus. Two groups of representative PPCPs were selected as the chemical indicators for predicting the overall PPCPs contamination, based on the significant correlations between PPCPs.
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Authors
Zhuo Wang, Xi-Hui Zhang, Yong Huang, Hui Wang,