E3S Web Conf.
Volume 199, 20202020 The 2nd International Conference on Water Resources and Environmental Engineering (ICWREE2020)
|Number of page(s)||9|
|Published online||22 October 2020|
Analysis of the features and causes of the contamination in the Shandi River basin
Taiyuan University of Technology College of Environmental Science & Engineering, Taiyuan 030024, China
2 Taiyuan University of Technology College of Water Science & Engineering, Taiyuan 030024, China
* Corresponding author: firstname.lastname@example.org
This study examined the contamination of the surface water in the Shandi River basin in Yangquan, Shanxi province. A total of 11 sampling points (numbered S1-S2, S3-S4, S5–S11) were selected from the upstream to the downstream of the river, and 19 indexes were selected for inspection to identify the causes and features of contaminated water in the basin. The Nemerow Pollution Index was applied to evaluate the quality of the surface water and the overall extent of contamination in the basin. The result revealed that the content of Cl-, As, Cr6+, CN-, and volatile phenols met the grade III water quality standards in China, and the remaining indexes exceeded the standards by varying degrees. The five sources of contamination in the basin negatively affect the environment. The presence of contaminants at the sampling points was in the following order, from highest to lowest: SO42-= Mn = NH3-N> Fe2+= Hg >Fe3+> Cd > Zn = F->COD>NO3 -= NO2-. The severity of the comprehensive contamination indexes decreased in the order of S6 > S9 > S7 > S11 > S10 > S3 > S8 > S5 >S4.
© The Authors, published by EDP Sciences, 2020
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