...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Ecotoxicology >Assessment of potential risks associated with heavy metal contamination in sediment in Aobaopao Lake, China, determined from sediment cores
【24h】

Assessment of potential risks associated with heavy metal contamination in sediment in Aobaopao Lake, China, determined from sediment cores

机译：根据沉积物核心评估中国敖包泊湖沉积物中重金属污染的潜在风险

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Lianhuan Lake is found in the lowest point of the Songnen Plain in Eastern China and is a typical hardwater lake. Lianhuan Lake is constituted by eighteen lakes and Aobaopao Lake is located in the eastern portion. Geochemical features and pollution history of heavy metals in Aobaopao Lake were investigated. Total metal contents and chemical fractionations of Cu, Fe, Mn, Ni, Pb, Cd, Cr and Zn were analyzed for core sediment samples taken from north sampling site for Core AB1 and south sampling site for Core AB2 of the lake using the speciation extraction procedure proposed by the Commission of the European Communities Bureau of Reference (BCR) together with grain size and TOC measurements. Heavy metal analyses showed that sediments have similar geochemical features. In order to quantify the anthropogenic contamination of the metals according to their speciation composition, the RSP approach was applied. In Core AB1, Cd is moderate and significant contaminate while Mn is minor, moderate and significant contamination. In Core AB2, Cd is more significant contaminate from 3.75 cm to the surface. The risk assessment code (RAC) established by Perin et al. (Heavy Metals in the Environment, CEP Consultants, Edinburgh, 1985) was used to evaluate the risk of heavy metals in sediments of Aobaopao Lake. The results for both cores suggest that Mn and Cd posed a high risk to local environment.
机译：联欢湖位于中国东部松嫩平原的最低点，是典型的硬水湖。联欢湖由十八个湖泊组成，敖包oba湖位于东部。研究了敖包堡湖的重金属地球化学特征和污染历史。使用形态提取方法，分析了从湖北AB1采样点和南AB2采样点取样的核心沉积物样品中Cu，Fe，Mn，Ni，Pb，Cd，Cr和Zn的总金属含量和化学成分。欧洲共同体参考局（BCR）委员会提出的程序，以及晶粒尺寸和TOC测量。重金属分析表明，沉积物具有相似的地球化学特征。为了根据金属的物种组成来量化金属的人为污染，使用了RSP方法。在AB1型堆芯中，Cd属于中度和重大污染，而Mn属于轻度，中度和重大污染。在AB2型芯中，Cd在距表面3.75厘米处的污染更为严重。 Perin等人建立的风险评估代码（RAC）。 （环境中的重金属，CEP顾问，爱丁堡，1985年）被用来评估青叶opa湖沉积物中重金属的风险。两个岩心的结果都表明，锰和镉对当地环境构成了高风险。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号