Arsenic Content Analysis of Several Vegetable Land and Vegetables in Fujian
-
摘要: 对福建若干菜地耕作层土壤、剖面土壤样品及蔬菜样品中砷(As)含量进行分析,结果表明:菜地耕作层土壤总As含量在3.79~13.21 mgkg-1范围内,总As含量符合福建省地方标准的一级土壤标准或二级土壤标准,As污染指数P在0.26~0.88范围内,P<1,未受到As的污染;菜地土壤总As在土层中的分布状况为底土层>心土层>耕作层。As在蔬菜不同部位的分布规律为:根>茎>叶或根>叶>茎。Abstract: By analyzing and comparing the arsenic content in the soil from a plough layer, a soil profile and a vegetable sample, all taking from several vegetable land in the Province of Fujian, we found that the total arsenic content in the plough layer of the cropland ranged from 3.79 to 13.21 mgkg-1, which accorded with the first level and the second of Fujian soil standard.Arsenic pollution index (P) in the plough layer ranged from 0.26 to 0.88 (P1), which indicated zero pollution of the arsenic in the soil.The content of total arsenic was found the most abundant in the substratum, second most in the subsoil layer, and the least in the cultivated horizon.In different parts of the vegetable, the distribution of the arsenic content followed the rule (ranking from the most to the least): root, stem, leaf or root, leaf, and stem.
-
Key words:
- vegetable land /
- soil /
- vegetables /
- arsenic
-
[1] 蒋成爱,吴启堂,陈杖榴. 土壤中砷污染研究进展[J]. 土壤,2004,36(3):264-270. [2] [3] 国家环境保护局,国家技术监督局. GB/T 17135-1997土壤质量 总砷的测定 硼氢化钾-硝酸银分光光度法[S]. 北京:中国标准出版社,1997. [4] 中国国家标准化管理委员会. GB/T5009.11-2003食品中总砷及无机砷的测定[S]. 北京:中国标准出版社,2004:71-84. [5] MASSCHELEYN P H, DELAUNE R D, PATRICK W H. Effect of Redox Potential and pH on Arsenic Speciation and Solubility in a Conta minated Soil[J]. Environmental Science Technology, 1991,25(8):1414-1419.
点击查看大图
计量
- 文章访问数: 2869
- HTML全文浏览量: 93
- PDF下载量: 932
- 被引次数: 0