Analysis of Water Quality in Reservoirs of Tianjin Binhai New District
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Abstract:
The water quality data in the reservoirs of Tianjin Binhai New District were obtained through field sampling and laboratory analysis, and the Comprehensive Trophic Level Index Method was used to evaluate the eutrophication of each reservoir in Tianjin Binhai New District. The results indicated that (1) only Yingcheng Reservoir shows light eutrophication, whereas other reservoirs are moderately nutrient; (2) . some of the water quality indexes of Shajingzi Reservoir, Yingcheng Reservoir, and Qianquan Reservoir have higher values than those defined by the grade IV of Surface Water Environment Quality Standard (GB3838-2002), and some of water quality indexes of Beidagang Reservoir and Beitang Reservoir have higher values than those defined by grade III; and (3) TP, TN, and CODCr of Beidagang Reservoir exceed the drinking water standard. This reservoir is an important water source area of Tianjin City, therefore it needs immediate water purifying measures.
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