表1土壤中各项污染物的含量限值mg/Kg操作条件旱田水田PH值＜6.56.5-7.5＞7.5＜6.56.5-7.5＞7.5镉0.300.300.400.300.300.40汞0.250.300.350.300.400.40砷252020202015铅505050505050铬120120120120120120铜506060506060表2农田灌溉水中各项污染物的浓度限值mg/L项目浓...

时间:2024-11-04 07:02栏目:综合大类