黑体加粗-海洋环境科学.DOC

文章标题文章标题文章标题 （文章标题：三号宋体 剧中排）（全文页边距均为2厘米，段落为1.5倍行距，通栏排） 李， （国家海洋局第一海洋研究所，山东 青岛 266061） （作者单位包括单位全称（学校包括院系），所在省、市及邮编；小五宋，居中排） 摘 要：科学问题沉积物中金属毒性和生物可性与总量无关，而存在形态。s-BLM）应用于有氧环境，结合间隙水化学成分来计算多种金属的毒性阈值与以往应用于厌氧环境的酸可挥发性硫化物/同步萃取金属（AVS/SEM）模型形成互补，从而能够全面系统的判断沉积物中的多种重金属（Cu、Pb、Zn、Ni、Cd、Ag）的生物毒性。本文了的构建应用研究进展及局限性。，但国的研究发展更科学的制定沉积物环境质量标准有重意义。（摘要应着重写明重要的试验条件、数据和结论。不能有自我评价性语言.） 关键词：沉积物重金属生物毒性生物配体模型 中图分类号： 文献标识码：A 文章编号： LI Li, MA De-yi （姓的字母全部大写，名的第一个字首字母大写，其余小写，名之间用“-”连接） (First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China) （单位先小后大，不能用单位的缩写字母，实词首字母大写） Abstract: assessment of the metal toxicity in sediment always is a complicated topic to tackle. In recent years, many researches showed that the bioavailability and toxicity of metals in sediments were not related with the total metal concentrations, but the metal speciation in sediments. Based on the recent research results, the sediment biotic ligand model (s-BLM) was established to assess the metal toxicity in sediments. The s-BLM is applied in oxic environments, based on the concentrations of the labile metals, acid volatile sulfide and organic carbon, along with the information on pore-water chemistry, to calculate the toxicity threshold of the metals. Combined with the AVS/SED model that is used for assessing the metal toxicity in anoxic sediment environment, the s-BLM can be used to assess comprehensively the toxicity of several metals (Cu, Pb, Zn, Ni, Cd, Ag) in sediments. This article present the origin and structure of the s-BLM, focused on its application, current research status and limitations. Currently, and the s-BLM has drawn many attentions and applications internationally, while in China, the study and application of it is still vacant. The study and development of the models should have the great value for establishing the better sediment quality criteria. Keywords: sediments, heavy metals, toxicity, biotic ligand model 研究背景（一级标题：小四号黑体） 随着人类工业化和城市化的发展，近岸海域越来越明显的成为污染物质的。沉积物中的金属，因其生物不