Toxicity tests of aquatic pollutants by using common duckweed

Environmental Pollution Series B, Chemical and Physical Pub Date : 1986-01-01 DOI:10.1016/0143-148X(86)90028-5

Wuncheng Wang

引用次数: 160

Abstract

The objective of this study was to develop a phytoassay procedure using common duckweed. The results suggest that the assay is simple, sensitive and very economical.

Those substances evaluated for relative toxicity by the phytoassay included most of the constituents listed in Illinois' general standards for water quality. Based on the duckweed assay, the maximum permissible concentrations of Ba(II), Cd(II), Fe(III), Ni(II), and Se(IV) are lower than the water quality standards. On the other hand, similar limits for B(III), Cr(VI), Cu(II), F(I), Pb(II), Mn(II), SO₄(II) and phenol are higher than those concentrations stipulated in the water quality standards. For Cl(I) and Zn(II) the limits developed by the phytoassay are equal to the standards.

The results suggest that duckweed is a promising indicator of aquatic toxicity. Duckweed assay should be further explored so that its value can be evaluated when more data are available.

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利用浮萍对水生污染物进行毒性试验

本研究的目的是开发一种利用普通浮萍的植物测定程序。结果表明，该方法简便、灵敏、经济。这些被植物测定法评估为相对毒性的物质包括伊利诺伊州水质一般标准中列出的大部分成分。根据浮萍测定，Ba(II)、Cd(II)、Fe(III)、Ni(II)和Se(IV)的最大允许浓度低于水质标准。另一方面，B(III)、Cr(VI)、Cu(II)、F(I)、Pb(II)、Mn(II)、SO4(II)和苯酚的类似限值均高于水质标准规定的浓度。对氯(I)和锌(II)，植物测定法测定的限度等于标准。结果表明，浮萍是一种很有希望的水生毒性指标。浮萍测定法应进一步探索，以便在获得更多数据后对其价值进行评估。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Environmental Pollution Series B, Chemical and Physical

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