Environmental concern regarding used oil is due to poor oil management practices relating to the techniques of disposal. Throwing oil in the garbage may ultimately result in groundwater contamination. Oil disposed via sewer creates an oily sheen over water which inhibits photosynthesis and has a negative impact on biota. Road oiling may contaminate groundwater and kill plants and animals in the immediate area of use. Burning as fuel in incinerators with inadequate pollution control devices causes air pollution. Oil is a valuable resource and should not be wasted. Recovery, recycling, and reuse of used oil are realistic objectives. Used oil should not automatically be considered as waste oil. Used oil can be returned to the point - of - purchase, or alternate location, where it may be stored and made available to service companies for treatment and reuse.
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