title: Basin-scale emission and multimedia fate of triclosan in whole China.
abstract: This study aimed to investigate the emission and multimedia fate as well as potential risks of triclosan (TCS) in all of 58 basins in China. The results showed that the total usage of TCS in whole China was 100 t/year, and the discharge to the receiving environment was estimated to be 66.1 t/year. The predicted TCS concentrations by the level III fugacity model were within an order of magnitude of the reported measured concentrations. TCS (90.8%) was discharged into the water compartment and 9.2% to the soil compartment. The TCS concentration levels in east China were found generally higher than in west China. In addition, the input flux for TCS to seawater was largely attributed to the seasonal variations in advection flows. Preliminary risk assessment showed that medium to high ecological risks for TCS would be expected in the eastern part of China due to the high population density.
authors: State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, People's Republic of China.
authors: Qian-Qian
authors: QQ
authors: Zhang
authors: Guang-Guo
authors: GG
authors: Ying
authors: Zhi-Feng
authors: ZF
authors: Chen
authors: Jian-Liang
authors: JL
authors: Zhao
authors: You-Sheng
authors: YS
authors: Liu
mesh_terms: D002681:China; D004202:Disinfectants / Q000032:analysis* / Q000737:chemistry; D006801:Humans; D018570:Risk Assessment; D045483:Rivers / Q000737:chemistry*; D012987:Soil / Q000737:chemistry; D012989:Soil Pollutants / Q000032:analysis / Q000737:chemistry; D014260:Triclosan / Q000032:analysis* / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000737:chemistry; D014877:Water Pollution, Chemical; D060753:Water Quality
chemical_list: D004202:Disinfectants; D012987:Soil; D012989:Soil Pollutants; D014874:Water Pollutants, Chemical; D014260:Triclosan