PAHs are organic compounds containing two or more fused aromatic rings, which, in processed articles, may exist in the following: creosote, medicines, dyes, plastics, rubbers, pesticides, lubricants, release agents, capacitance electrolytes, mineral oil, pitch, insecticides, bactericides, mosquito-repellent incense, cigarettes, and petrol antifreeze, given that the raw materials are coal, crude oil and tar. More
