Pollution characteristics and Evaluation of Surface Sediment of Nanhu Lake
Twelve samples of surface sediment in Nanhu Lake, Wuhan city were collected and the concentrations of Organic Matter (OM), Total Nitrogen (TN), Total Phosphorus (TP), ammonia nitrogen (NH4+-N) and nitrate nitrogen (NO3 --N) were determined; the average result were 6.58%, 3972, 1712, 897 and 20mg/kg separately. Cd, Hg, As, Cu, Pb, Cr and Zn were determined too; and the average value were 0.46, 0.140, 19.3, 45.8, 57.3, 53.3 and 90.3mg/kg respectively. The content of pH, TN, TP and NH4+-N in overlying water and pore water were tested, the concentrations of TN and NH4+-N were higher and TP were less in pore water than that in overlying water, which meant that TN and NH4+-N in sediment could release into water and TP couldn’t. The contaminants values of surface sediment near the biggest sewage outlet were much higher than that of others. When evaluating the surface sediment with organic index and organic nitrogen and pollution load index, the results showed organic pollution was heavy and heavy metals pollution was moderate.
Wei Ming-rong Jiang Ying-he Wei Ming-rong Wei Cai-chun Xu Li-wei
Civil Engineering & Architecture Department Wuhan University of Technology Wuhan, China The Guangxi Key Laboratory of Environmental Engineering,Protection and Assessment Guilin, China
国际会议
成都
英文
1-4
2010-06-18（万方平台首次上网日期，不代表论文的发表时间）