An approach to the enactment of soil-environmental standards(Hg, Cd, Pb and As) in China

Abstract

Abstract: According to the current situation of researches on soil-environmental quality standards at home and abroad, and on the basis of foundations and principles proposed for enacting soil-environmental standards, soil-environmental quality standards of Hg, Cd, Pb and As were explored. The research indicates that the functional land use in China includes: (1) natural or clean areas; (2) agricultural and pastoral areas; (3) forested areas; and (4) urban and waste disposal areas. The corresponding standards are 0.10, 0.20, 0.50, 1.00mg/kg for Hg; 0.15, 0.30, 0.50, 1.00mg/kg for Cd; 30, 60, 100, 300mg/kg for Pb; and 15, 2027, 30(except sandy soil areas) mg/kg for As.

Key words: Soil-environmental standard, Soil-ecological effect, Heavy metal, Critical value, Background content

Wu Yanyu, Zhou Qixing, Tian Junliang. An approach to the enactment of soil-environmental standards(Hg, Cd, Pb and As) in China[J]. Chinese Journal of Applied Ecology, 1991, 2(4): 344-349.

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