Abstract

Creosote is produced from a class of carbonaceous chemicals formed by the distillation of various tars and pyrolysis of wood or fossil fuel. Creosote is a mixture of hundreds of chemicals. Creosote is used to describe a variety of products with different chemical compositions. Creosotes are made from high temperature treatment of coal tar, wood, and other plant material. It has been used as a pesticide, as a wood preservative, and to treat gastrointestinal disorders. It is potentially a human carcinogen and hazardous to aquatic life. Exposure to excess quantities of creosote can be toxic and it can cause a wide variety of issues from skin irritation to death depending on the route and level (concentration and duration) of exposure. Routes of exposure can be via inhalation of its vapor, through the skin or by ingestion. Repeated or prolonged contact with skin may cause dermatitis and hyperpigmentation of skin. It is a respiratory tract irritant (can cause shortness of breath). Creosote can pile up in heating systems of dwellings and can potentially cause chimney fires. Creosote is toxic to the environment; therefore, soil and ground water contamination should be carefully monitored.

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