| GAO Jianhua,LI Jun,Wang Harry V,WANG Yaping,WANG Zhenyan,BAI Fenglong,GAO Shu,CHENG Yan. 2009. Distribution and their pollution assessment of heavy metals in the sediments of the Yalu River Estuary and its adjacent coastal waters. Acta Oceanologica Sinica, (6):12－23 |
| Distribution and their pollution assessment of heavy metals in the sediments of the Yalu River Estuary and its adjacent coastal waters |
| Distribution and their pollution assessment of heavy metals in the sediments of the Yalu River Estuary and its adjacent coastal waters |
| Received:December 19, 2008 Revised:October 14, 2009 |
| DOI： |
| Key words:heavy metals sediment pollution distribution accumulation Yalu River |
| 中文关键词: heavy metals sediment pollution distribution accumulation Yalu River |
| 基金项目:The National Natural Science Foundation of China under contract Nos 40976051, 40976036, 40871019, 40506022 and 40506013. |
| Author Name | Affiliation | E-mail | | GAO Jianhua | Ministry of Education Key Laboratory for Coast and Island Development, Nanjing University, Nanjing 210093, China | jhgao@nju.edu.cn | | LI Jun | Qingdao Institute of Marine Geology, Qingdao 266071, China | | | Wang Harry V | Virginia Institute of Marine Science, Gloucester Point, VA 23062, USA | | | WANG Yaping | Ministry of Education Key Laboratory for Coast and Island Development, Nanjing University, Nanjing 210093, China | ypwang@nju.edu.cn | | WANG Zhenyan | Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266003, China | | | BAI Fenglong | Qingdao Institute of Marine Geology, Qingdao 266071, China | | | GAO Shu | Ministry of Education Key Laboratory for Coast and Island Development, Nanjing University, Nanjing 210093, China | | | CHENG Yan | School of Urban Construction, East Liaoning University, Dandong 118003, China | |
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| Abstract: |
| The present paper deals with the distribution patterns of heavy metals and the associated influencing factors in the Yalu River Estuary and its adjacent coastal waters. Based upon the analysis of the surficial and core sediments measurements, the pollution of heavy metal and potential ecological risk were evaluated. The burial flux and contents of heavy metals (except for copper) have been continuously increasing since the 1920s. Therefore, the gross potential ecological risk for the sediments was high or very high, and the study area was endangered by heavy metals contamination. Heavy metals originated mainly from upstream pollutant input, correlation analysis showed that chromium, nickel, zinc, cadmium, lead, arsenic, and mercury in the sediments of the middle and west channels as well as the sea area of the western Yalu River Estuary concentrations were most probably derived from similar sources. In contrast, the metal of copper most probably originated from sources different from the other metals. Preliminary studies indicate that copper contamination was most likely the result of emission from mining activities situated at the upstream of the river. The contents of heavy metals in the sediments of estuarine turbidity maximum zone of Yalu River were larger than those of any other areas in the middle channel. With large portion of fine sediments, weaker hydrodynamics, and richer sources of heavy metals, the sediments of the west channel, were even more enriched with heavy metals than those of the middle channel. |
| 中文摘要: |
| The present paper deals with the distribution patterns of heavy metals and the associated influencing factors in the Yalu River Estuary and its adjacent coastal waters. Based upon the analysis of the surficial and core sediments measurements, the pollution of heavy metal and potential ecological risk were evaluated. The burial flux and contents of heavy metals (except for copper) have been continuously increasing since the 1920s. Therefore, the gross potential ecological risk for the sediments was high or very high, and the study area was endangered by heavy metals contamination. Heavy metals originated mainly from upstream pollutant input, correlation analysis showed that chromium, nickel, zinc, cadmium, lead, arsenic, and mercury in the sediments of the middle and west channels as well as the sea area of the western Yalu River Estuary concentrations were most probably derived from similar sources. In contrast, the metal of copper most probably originated from sources different from the other metals. Preliminary studies indicate that copper contamination was most likely the result of emission from mining activities situated at the upstream of the river. The contents of heavy metals in the sediments of estuarine turbidity maximum zone of Yalu River were larger than those of any other areas in the middle channel. With large portion of fine sediments, weaker hydrodynamics, and richer sources of heavy metals, the sediments of the west channel, were even more enriched with heavy metals than those of the middle channel. |
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