摘要
于2008年4月在崇明东滩湿地开展野外调查,采集表层沉积物样品,参考Walter W W等提出的砷5步提取法进行总砷、砷的形态分析。结果表明:东滩湿地沉积物总砷含量5.33~19.74 mg/kg,各形态砷所占比例:弱交换态0.6%(0.5%~0.7%);强交换态5%(3%~7%);非晶形铁铝锰氧化物结合态28%(26%~29%);晶形铁铝锰氧化物结合态21%(19%~24%);残渣态46%(42%~51%)。
Field work was conducted in wetland in Chongming Island in April,2008.Surface sediment samples were collected to analyze total arsenic and different arsenic species.Results showed that the concentrations of total arsenic varied from 5.33 mg/kg to 19.74 mg/kg.Different species of arsenic accounted for the total arsenic concentration(%): non-specifically sorbed 0.6%(0.5%～0.7%);specifically-sorbed 5%(3%～7%);amorphous and poorly-crystallized hydrous oxides of Fe and Al and Mn 28%(26%～29%);well-crystallized hydr...
出处
《城市环境与城市生态》
CAS
CSCD
2009年第5期26-28,33,共4页
Urban Environment & Urban Ecology
基金
上海市科委重大项目(07DZ12038)
上海市优秀学科带头人项目(07XD14010)
关键词
崇明东滩
湿地
沉积物
砷
Chongming Dongtan
wetland
sediment
arsenic
