摘要
本文调查了上海川沙县污水灌区停止污水灌溉10年后污水总明渠两侧土壤、稻米、水井及污泥中若干重金属污染物的含量。调查表明,停止污灌10年后,总明渠两侧土壤金属污染仍然严重,米中镉含量较1976年有所降低,污水明渠对其两侧水井影响不大。讨论了老明渠治理对策。
In this paper, the contents of some heavy metals in soil, unplished rice, well water and aludge were examined in the areas of irrigation ditch in Chuan Sha cou-nty of Shanghai. The results showed that after stopping sewage irrigation for ten years, soil contamination induced by heavy metals was stili serious, though the Cd content in unpolished rice was lower than that of in 1976, and there was no effect on well water. The ways to deal the old irrigation ditch were discussed.
出处
《农村生态环境》
CSCD
1989年第3期44-48,共5页
Rural Eco-Environment
