1. Dynamic Analysis on Organic Matter and Nitrogen Pollution of Dongchang Lake.
- Author
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Sheng ZHAI, Dongli WANG, Dongliang XIAO, Ting HAN, Zhen JIANG, Yongqiang QI, Jian-wei ZHOU, and Juyuan WANG
- Subjects
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WATER quality , *WATER pollution , *LAKES , *NITROGEN - Abstract
[Objective] The aim was to explore dynamic changes of organic matter and nitrogen pollution in Dongchang Lake. [Method] Monitoring data, including BOD5, CODCr, NH3-N and TN, of Dongchang Lake were chosen for analysis during 2002-2011. [Result] Water quality of the six lake districts showed deteriorating in monitoring period, and TN was the dominant pollution factor; BOD5/CODCr ratio was low, suggesting biodegradability of organic pollutant in the lake was lower. NH3/TN ratio was higher, indicating NH3-N was a major factor causing nitrogen exceeding in 2010. In addition, correlations between BOD5 and CODCr and between NH3-N and TN in the lake districts maintained at a significant level. [Conclusion] The research provides references for improving water in Dongchang Lake. [ABSTRACT FROM AUTHOR]
- Published
- 2014