求翻译：常以微小的颗粒存在于大气、土壤和水中，主要的污染源是化工冶金工业、垃圾焚烧、造纸以及生产杀虫剂等产业。日常生活所用的胶袋，PVC（聚氯乙烯）软胶等物都含有氯，燃烧这些物品时便会释放出二恶英，悬浮于空气中。是什么意思？

Often tiny particles in the atmosphere, soil and water pollution is the main chemical and metallurgical industry, waste incineration, paper and the production of pesticides and other industries. Plastic bags used in everyday life, PVC (polyvinyl chloride) and other soft materials contain chlorine, c

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Often exists by the small pellet in the atmosphere, the soil and the water, the main source of pollution is industries and so on chemical metallurgy industry, trash burning down, papermaking as well as production pesticide.The daily life uses the plastic bag, PVC (polyvinyl-chloride) thing and so on

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正在翻译，请等待...