International Journal of Environmental Sciences

Volume 3 Issue 5 2013- March 2013    Pages: 1477-1484  <<Previous    Next>>

River water quality assessment based on CWQII in Hua county, China

Author Information:

Zhang Hanting1,2, Wei Lili1,2
1- School of Environmental Science and Engineering, Chang’an University, No. 126 Yanta Road, Xi’an 710054, China
2- Key Laboratory of Subsurface Hydrology and Ecological Effect in Arid Region of Ministry of Education (Chang’an University)


This study was carried out to evaluate the river water quality in Hua County with comprehensive water quality identification index (CWQII). The results indicates that the river water quality of Weihe River gradually worsen down-gradient, the water quality of Yuxian River met the standard of water environment functional zone, the water quality of Luowen River was worse than Yuxian River, the water quality of the Shidi River exceeded the standard limit and was the worst among the three tributaries. Nitrogen is the greatest factor influencing the water quality. CWQII is simple in concept, and can provide all information about water quality classification and the water quality status.

Key words:Water quality assessment, comprehensive water quality identification index method, water pollution; river water.


© 2012 Copyright by the authors, licensee Integrated Publishing Association.This is an open access article distributed under the Creative Commons Attribution License (3.0) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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