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Erschienen in: Environmental Earth Sciences 9/2015

01.05.2015 | Thematic Issue

Chemometrics data of water quality and environmental heterogeneity analysis in Pu River, China

verfasst von: Hongjie Gao, Chunjian Lv, Yonghui Song, Yu Zhang, Lijie Zheng, Yujie Wen, Jianfeng Peng, Huibin Yu

Erschienen in: Environmental Earth Sciences | Ausgabe 9/2015

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Abstract

Pu River is a typical tributary of Liao River basin; in order to investigate water quality variations at different times and spaces in Pu River, the multivariate statistical method was used to analyze 12 water quality indicators measured at 18 different sites in the period from 2012 to 2013. The research assessed water pollution state and factors, identified pollution sources, and proposed some protective measures and schemes to improve the water quality. Based on the water quality indicators monitoring results, spatial hierarchical cluster analysis (HCA) on 18 sampling sites classified, Pu River was classified into four segments, including source clean segment, upstream heavily polluted segment, midstream light polluted segment, and downstream micro-polluted segment. Temporal HCA results on 8 months also performed a significant seasonal variations on heavily pollution in normal river flow period and early flood period. By principal component analysis (PCA), it is founded that the main pollution of Pu River were COD, TOC, BOD5, NH3-N, TP, and chlorophyll a (Chl-a). Among them, COD, TOC, and BOD5 mainly came from industrial pollution sources, NH3-N and TP from domestic pollution sources, and Chl-a from the natural pollution. Combining with the field investigation result, it was found that the upstream and midstream were mainly polluted by the industrial wastewater and domestic sewage, while the downstream were mainly contaminated by agricultural non-point pollution. Therefore, reinforcing the prevention and control of industrial and domestic pollution of upstream region are expected to improve the water quality of Pu River.

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Metadaten
Titel
Chemometrics data of water quality and environmental heterogeneity analysis in Pu River, China
verfasst von
Hongjie Gao
Chunjian Lv
Yonghui Song
Yu Zhang
Lijie Zheng
Yujie Wen
Jianfeng Peng
Huibin Yu
Publikationsdatum
01.05.2015
Verlag
Springer Berlin Heidelberg
Erschienen in
Environmental Earth Sciences / Ausgabe 9/2015
Print ISSN: 1866-6280
Elektronische ISSN: 1866-6299
DOI
https://doi.org/10.1007/s12665-015-4233-x

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