Country is essentially pollution-free zone. Low population density of the area , only non-polluting industries.
Typical urban residential, commercial and light industrial areas , the region has a mild contamination , such as traffic pollution.
Industrial area of air pollution caused by heavy industry area . Contamination may be other gases formed in the gas fuel , such as sulfur and nitrogen oxides, or the release of chemical or processing plant . Particles suspended in air travel , as the deposition of dust or iron oxide generated 430 stainless steel sheets roduction also cause corrosion increases.
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