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《Environmental Science & Technology》 2017-S2
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Distribution Characteristics of Fe and Mn in Tangpu Reservoir

LIANG Liang;YU Boshi;WANG Ye;TANG Huafeng;ZHENG Danping;ZHAO Ping;Shaoxing Tangpu Reservoir Co., Ltd.;Key Laboratory of Ecological Impacts of Hydraulic-projects and Restoration of Aquatic Ecosystem ,Ministry of Water Resources;Institute of Hydroecology,Ministry of Water Resources&Chinese Academy of Sciences;  
Total contents of Fe and Mn of vertical distribution in sediments of Tangpu Reservoir, which located in Ning Shao Plain, were measured with the method of Flame atomic absorption, Cumulative index method was used to evaluated the pollution of Mn. Results showed that contents of Fe and Mn in sediments of 9 samples were 486.25~3 522.4 mg/kg 、809.67~1 365.49 mg/kg respectively, Fe and Mn in sediments were characterized by surface enrichment in vertical section, which meant contents of Fe and Mn were the highest in the surface layer, and reduced gradually with the increase depth of the sedi-ment to a remained stable in certain depth. The concentration of Mn in sediment from the reservoir was higher than back-ground soil of Ning Shao Plain in Zhejiang Province, Consequences of the cumulative exponential method revealed that Mn was slightly polluted in the reservoir sediments. It is essential to take measures to prevent secondary heavy metal pollution of water from sediment, which ensure the safety of water quality from reservoir.
【Fund】: 水生态项目:汤浦水库水生态监测、评价及保水生态渔业对策措施研究(201015072)
【CateGory Index】: X524
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