During coal loading and coke discharging great deal of fume and dust pour out from coke furnace in coking plant, which causes environment pollution.
焦化厂焦炉生产中装煤和出焦时，大量烟尘外逸，造成环境污染。
This causes the white pollution to our environment, which is very harmful because plastic bags can not disappear by natural decomposition.
这将给我们的环境带来白色污染，这是非常有害的，因为塑料袋不能自然分解消失。
But for over-applying herbicide, on the one hand which increases cost of production, on the other hand which causes pollution to environment.
但是由于除草剂过度使用，一方面增加了生产投入成本，另一方面也造成了环境的污染。
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