多氯联苯(PCB)又称氯化联苯,是一类人工合成有机物,是联苯苯环上的氢原子为氯所取代而形成的一类氯化物。多氯联苯在工业上的广泛使用,已造成全球性环境污染问题。
本文对零价金属铁镁混合粉末对多氯联苯污染土壤的修复效果进行了研究,取得了很好的结果。
This paper has investigated the effect of zero-valent metallic mixed powder by iron and magnesium for repairing PCB-contaminated soils and has obtained good results.
多氯联苯和六氯苯都是长期存在,并积累在食物链中的污染物,取缔这些物质需要长达数十年的时间。
PCBs and HCB are both long-lived pollutants that accumulate in food chains and take decades to break down.
同时塑料还吸收了污染物pcbs(多氯联苯)和各种农药,从而给食物链中带来有毒物质。
At the same time, plastics absorb pollutants including PCBs (polychlorinated biphenyls) and pesticides, bringing poisons into the food chain.
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