| Title: | "Risk assessments of emerging contaminants in various waters and changes of microbial diversity in sediments from Yangtze River chemical contiguous zone, Eastern China" |
| Author(s): | Zhang D; Liu W; Wang S; Zhao J; Xu S; Yao H; Wang H; Bai L; Wang Y; Gu H; Tao J; Shi P; |
| Address: | "Jiangsu Provincial Key Laboratory of Environmental Engineering, Jiangsu Provincial Academy of Environment Science, Nanjing 210036, China. Jiangsu Provincial Key Laboratory of Environmental Engineering, Jiangsu Provincial Academy of Environment Science, Nanjing 210036, China. Electronic address: jshblw@126.com. State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China" |
| DOI: | 10.1016/j.scitotenv.2021.149982 |
| ISSN/ISBN: | 1879-1026 (Electronic) 0048-9697 (Linking) |
| Abstract: | "Over recent decades, increasing chemical contamination has greatly affected aquatic life and human health, even though most contaminants are present at low concentrations. The large-scale chemical industrial parks (CIPs) concentrated in the Yangtze River Delta account for over half of the total in China, and Jiangsu Province occupies one fifth of the Yangtze River Delta. Inevitably, the ecosystems could be affected by these CIPs. In this study, we collected 35 water and 12 sediment samples from the Yangtze River (Taizhou section) surrounding waters adjacent to concentrated CIPs and determined their cumulative chemical levels to be 0.2 to 28.4 mug/L and cumulative detections to be 11 to 39 contaminants with a median of 20 contaminants. 61 out of 153 screened chemicals were detected from at least one sampling site, and 6 contaminants, mostly semi-volatile organic compounds, appeared at all sites. Among these detected chemicals, di-n-octyl phthalate and dibutyl phthalate were at the highest levels. Ecological assessment revealed that 4-chloroaniline, phenol and dibutyl phthalate possibly would induce adverse effects on Yangtze River (Taizhou) ecosystems. Further aided with an evaluation of integrated biomarker response (IBR) index, it was found that site W06 (downstream of Binjiang CIP wastewater inlet) was the location in greatest need of urgent action. As a result, the microbial diversity of sediments in the Yangtze River mainstream was significantly higher than that of tributaries, where CIPs wastewater entered" |
| Keywords: | "China Ecosystem *Environmental Monitoring Geologic Sediments Humans Risk Assessment Rivers *Water Pollutants, Chemical/analysis Chemical industrial park Ibr Microbial diversity Yangtze River;" |
| Notes: | "MedlineZhang, Dan Liu, Wei Wang, Shui Zhao, Jing Xu, Shuhui Yao, Hongye Wang, Hao Bai, Lisen Wang, Ying Gu, Huanglin Tao, Jingzhong Shi, Peng eng Netherlands 2021/09/07 Sci Total Environ. 2022 Jan 10; 803:149982. doi: 10.1016/j.scitotenv.2021.149982. Epub 2021 Aug 28" |
