Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China.
Mar Pollut Bull. 2013 Mar 15;68(1-2):157-67. doi: 10.1016/j.marpolbul.2012.11.043. Epub 2012 Dec 22.
Total concentrations, chemical fractions by BCR procedure and enrichment factors of nine potential harmful elements (V, Cr, Co, Ni, Cu, Zn, Mo, Cd and Pb) in surface sediments of the East China Sea (ECS) were investigated. Spatial distributions illustrated that PHEs (potential harmful elements) were mainly from the Changjiang River and the Jiangsu coastal current, except Pb which was influenced by atmospheric input. Sediments in the ECS were moderately polluted with Cd, Pb, Zn and Cu according to their enrichment factors (EFs). Distributions of EFs and labile fractions revealed that anthropogenic Cd and Cu were mainly input though the Changjiang, Pb pollutant was delivered from the Changjiang and atmosphere, while Zn was impacted by terrestrial pollution from the Changjiang and the Hangzhou Bay. Budget calculation showed that the Changjiang contributed 82-90% of PHE influxes. Thirty-eight to 77% of PHEs were buried in sediment, mainly along the inner shelf.
研究了东海（ECS）表层沉积物中 9 种潜在有害元素（V、Cr、Co、Ni、Cu、Zn、Mo、Cd 和 Pb）的总量、BCR 程序化学形态和富集因子。空间分布表明，除受大气输入影响的 Pb 外，PHEs（潜在有害元素）主要来自长江和江苏沿岸流。根据富集因子（EF），ECS 沉积物中 Cd、Pb、Zn 和 Cu 中度污染。EF 和可利用形态的分布表明，人为 Cd 和 Cu 主要通过长江输入，Pb 污染物来自长江和大气，而 Zn 则受长江和杭州湾陆地污染的影响。预算计算表明，长江贡献了 PHE 流入的 82-90%。38-77%的 PHEs 被埋藏在沉积物中，主要分布在内陆架。
