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SUN Wei-ping, YU Pei-song, PAN Jian-ming. Assessment of dissolved trace metals in nearshore area of Changjiang Estuary and Hangzhou Bay with gray cluster method[J]. Haiyang Xuebao, 2009, 31(1): 79-84.
Citation:
SUN Wei-ping, YU Pei-song, PAN Jian-ming. Assessment of dissolved trace metals in nearshore area of Changjiang Estuary and Hangzhou Bay with gray cluster method[J]. Haiyang Xuebao, 2009, 31(1): 79-84.
SUN Wei-ping, YU Pei-song, PAN Jian-ming. Assessment of dissolved trace metals in nearshore area of Changjiang Estuary and Hangzhou Bay with gray cluster method[J]. Haiyang Xuebao, 2009, 31(1): 79-84.
Citation:
SUN Wei-ping, YU Pei-song, PAN Jian-ming. Assessment of dissolved trace metals in nearshore area of Changjiang Estuary and Hangzhou Bay with gray cluster method[J]. Haiyang Xuebao, 2009, 31(1): 79-84.
Key Laboratory of Ecosystem and Biogeochemistry of State Oceanic Administration, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China;Institute of Environment and Biogeochemistry, Zhejiang University, Hangzhou 310027, China
2.
Key Laboratory of Ecosystem and Biogeochemistry of State Oceanic Administration, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China
Based on the China's offshore investigation and assessment in the autumn of 2007,dissolved trace metals in the sea area of the Changjiang Estuary and the Hangzhou Bay were studied and estimated with gray cluster method.According to the National Sea Water Quality Standard(GB3097-1997),the evaluation model for trace metals in seawater with gray cluster method was established.The evaluation results show that the surface seawater quality in the nearshore area of the Changjiang Estuary and the Hangzhou Bay is good as a whole,but the contents of mercury and lead are relatively high,especially mercury. The seawater quality to the north of the Changjiang Estuary,in the north of the Hangzhou Bay and in the near of Zhoushan Isle are not so good,the main reason is the drain out let.According to this study,evaluating the content of trace metals in the surface seawater using the gray cluster method was relatively objective and reasonable.