摘要
对体温计厂附近大气、水体、土壤及植物等遭受汞污染危害的调查表明,汞污染的水平范围为1000m以内,垂直范围土壤80cm以内。园林土壤的含汞量为农业土壤的6倍,园林植物吸持汞量是农业植物(蔬菜)的65倍。在汞污染源周围建立乔灌草结合的园林防护屏障,是抑制汞污染扩散的有效途径。
Mercury pollution to atmosphere, underground water, soils and plants near the vicinity of a clinical thermometer factory was investigated. The horizontal polluted distance was estimated as 1000 meters for air and the vertical affected depth was appraisd as 80 centimeters from the earth surface. It was found that mercury contents of soil for horticultural use were 6 times higher than that for agricultural use and mercury of contents of horticultural plants were 65 times higher than that of vegetable crops. Suggestion about constracting horticultural defense around a point mercury source was presented in this paper.
出处
《西南农业大学学报(自然科学版)》
CSCD
1999年第3期236-239,共4页
Journal of Southwest Agricultural University
关键词
汞
环境污染
效应
mercury
environment
effects