Spatiotemporal Patterns in River Water Quality and Pollution Source Apportionment in the Arid Beichuan River Basin of Northwestern China Using Positive Matrix Factorization Receptor Modeling Techniques

International Journal of Environmental Research and Public Health
Lele XiaoHuiwei Wang

Abstract

Deteriorating surface water quality has become an important environmental problem in China. In this study, river water quality was monitored in July (wet season) and October (dry season) 2019 at 26 sites, and a water quality index (WQI) and positive matrix factorization (PMF) model were used to assess surface water quality and identify pollution sources in the Beichuan River basin, Qinghai Province, China. The results showed that 53.85% and 76.92% of TN, 11.54% and 34.62% of TP, 65.38% and 76.92% of Fe, and 11.54% and 15.38% of Mn samples in the dry and wet seasons, respectively, exceeded the Chinese Government's Grade III standards for surface water quality. The spatial variation in water quality showed that it gradually deteriorated from upstream to downstream as a result of human activity. The temporal variation showed that water quality was poorer in the wet season than in the dry season because of the rainfall runoff effect. The PMF model outputs showed that the primary sources of pollution in the wet season were mineral weathering and organic pollution sources, domestic and industrial sewage, and agricultural and urban non-point pollution sources. However, in the dry season, the primary sources were mineral weathering and...Continue Reading

References

Dec 13, 2006·Environmental Science & Technology·Cong-Qiang LiuHua-Yun Xiao
Dec 19, 2006·Journal of Contaminant Hydrology·P GöbelW G Coldewey
Aug 30, 2008·Water Environment Research : a Research Publication of the Water Environment Federation·Ren YufenMiao Hong
Mar 27, 2010·Environmental Monitoring and Assessment·Hafizan JuahirMazlin Mokhtar
Dec 14, 2011·The Science of the Total Environment·M G PerroneE Bolzacchini
Sep 9, 2017·The Science of the Total Environment·Zhaoshi WuJiancai Deng
Mar 5, 2018·Journal of Environmental Management·Subhasis GiriZhen Zhang

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