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Aquatic environmental quality assessment in Ebinur Lake Catchment during high flow period, 2008

MI Yan1, CHANG Shunli1,2, SHI Qingdong1, GAO Xiang3 & HUANG Cong1 (1: Key Laboratory of Oasis Ecology of Xinjiang, College of Resources and Environment Science, Xinjiang University, Urumqi, Xinjiang 830046, P.R.China) (2: Insitute of Desert Meteorology, China Meteorological Bureau, Urumqi 830002, P.R.China) (3: Aibi Lake National Reserve of Bole Forestry Bureau, Bole 833400, P.R.China)  
Based on the proportion of cross-section category, the Nemerow Comprehensive Pollution Index was calculated for the water and sediment quality evaluation in Ebinur Lake Catchment during high-water period, 2008. The result showed that the main indicators (TN, TP and NH4+-N) exceed the national standards, especially in Bortala river, i.e., TP exceeded 14.1 times and TN 10.1 times. Furthermore, according to GB3838-2002, the monitored stations showed serious water deteriation with about 30% below Cetegory Ⅴ in Ebinur Lake Catchment. The result indicated that Lake Ebinur drainage area during high-water period polluted moderately.
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