Seasonal variation and dissolved organic matter influence on the distribution, transformation, and environmental risk of pharmaceuticals and personal care products in coastal zone: A case study of Tianjin, China

药品和个人护理产品的环境影响 环境科学 溶解有机碳 环境化学 污染 腐殖质 污染物 生态毒性 污染 环境工程 污水处理 生态学 化学 土壤水分 土壤科学 生物 有机化学 毒性
作者
Wenrui Yao,Yulin Qi,Yufu Han,Jinfeng Ge,Yuanyuan Dong,Jianwen Wang,Yuanbi Yi,Dietrich A. Volmer,Si‐Liang Li,Pingqing Fu
出处
期刊:Water Research [Elsevier]
卷期号:249: 120881-120881 被引量:8
标识
DOI:10.1016/j.watres.2023.120881
摘要

Pharmaceuticals and personal care products (PPCPs) are emerging contaminants that have raised urgent environmental issues. The dissolved organic matter (DOM) plays a pivotal role on PPCPs' migration and transformation. To obtain a comprehensive understanding of the occurrence and distribution of PPCPs, a seasonal sampling focused on the riverine system in coastal zone, Tianjin, Bohai Rim was conducted. The distribution and transformation of thirty-three PPCPs and their interaction with DOM were investigated, and their sources and ecological risks were further evaluated. The total concentration of PPCPs ranges from 0.01 to 197.20 μg/L, and such value is affected by regional temperature, DOM and land use types. PPCPs migration at soil-water interface is controlled by temperature, sunlight, water flow and DOM. PPCPs have a high affinity to the protein-like DOM, while the humus-like DOM plays a negative influence and facilitates PPCPs' degradation. It is also found that protein-like DOM can represent point source pollution, while humus-like substances indicate non-point source (NPS) emission. Specific PPCPs can be used as markers to trace the source of domestic discharge. Additionally, daily use PPCPs such as ketoprofen, caffeine and iopromide are estimated to be the main risk substances, and their ecological risk varies on space, season and river hydraulic condition.
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