Distribution, source, and environmental risk assessment of phthalate esters (PAEs) in water, suspended particulate matter, and sediment of a typical Yangtze River Delta City, China
| Autor: | Wei Mao, Lanqin Yang, Yong Li, Chunfeng Meng, Ting Zhao, Yiqiu Shen, Guanghua Mao, Xiangyang Wu, Hui Chen, Weiwei Feng, Liuqing Yang |
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| Rok vydání: | 2018 |
| Předmět: |
China
Health Toxicology and Mutagenesis Phthalic Acids Sewage 010501 environmental sciences Wastewater 01 natural sciences Risk Assessment Industrial wastewater treatment chemistry.chemical_compound Rivers Dry season Environmental Chemistry Ecotoxicology Cities 0105 earth and related environmental sciences business.industry Phthalate Sediment Esters General Medicine Particulates Pollution chemistry Environmental chemistry Environmental science Particulate Matter Seasons business Surface water |
| Zdroj: | Environmental science and pollution research international. 26(24) |
| ISSN: | 1614-7499 |
| Popis: | Phthalates (PAEs) in drinking water sources such as the Yangtze River in developing countries had aroused widespread concern. Here, the water, suspended particulate matter (SPM), and sediment samples were collected from 15 sites in wet and dry seasons in Zhenjiang, for the determination of six PAEs (DMP, DEP, DIBP, DBP, DEHP, and DOP) using the solid-phase extraction (SPE) or ultrasonic extraction coupled with gas chromatography-mass spectrometry (GC-MS). The total concentrations of six PAEs (Σ6PAEs) spanned a range of 2.65-39.31 μg L-1 in water, 1.97-34.10 μg g-1 in SPM, and 0.93-34.70 μg g-1 in sediment. The partition coefficients (Kd1) of PAEs in water and SPM phase ranged from 0.004 to 3.36 L g-1 in the wet season and from 0.12 to 2.84 L g-1 in the dry season. Kd2 of PAEs in water and sediment phase was 0.001-9.75 L g-1 in the wet season and 0.006-8.05 L g-1 in the dry season. The dominant PAEs were DIBP, DBP, and DEHP in water and SPM, DIBP, DEHP, and DOP in sediment. The concentration of DBP in water exceeded the China Surface Water Standard. The discharge of domestic sewage and industrial wastewater might be the main potential sources of PAEs. The risk quotient (RQ) method used for the risk assessment revealed that DBP (0.01 1) posed a high environmental risk in water, DIBP (RQ > 1) also showed a high risk in sediment. |
| Databáze: | OpenAIRE |
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