Polycyclic Aromatic Hydrocarbones (PAHs)

Polycyclic Aromatic Hydrocarbones, PAHs, are organic compounds containing only carbon and hydrogen, arranged in aromatic rings. PAHs are found in coal and tar deposits. The PAHs are also produced by the thermal decomposition of organic matter (for example in engines and incinerators or when biomass is burnt, like in forest fires). PAHs are found to be carcinogenic at exposure. Some PAHs are restricted under REACH.

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