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Coal tar was one of the first chemical substances proven to cause cancer from occupational exposure, during research in 1775 on the cause of chimney sweeps' carcinoma. [13] Modern studies have shown that working with coal tar pitch, such as during the paving of roads or when working on roofs, increases the risk of cancer.
Coal-tar pitch; Coal-tars (see Coal-tar distillation) Engine exhaust, diesel [5] Estrogen-progestogen menopausal therapy (combined) Estrogen-progestogen oral contraceptives (combined) [note 5] Estrogen therapy, postmenopausal NB There is "evidence suggesting lack of carcinogenicity" for estrogen-only menopausal therapy in humans and colorectal ...
Coal tar shampoo formulations can be effective. [8] [24] Although no significant increased risk of cancer in human treatment with coal tar shampoos has been found, caution is advised since coal tar is carcinogenic in animals, and heavy human occupational exposures do increase cancer risks. [28]
A 2020 study found that among women, ... Alcohol is the third leading preventable cause of cancer in the U.S., behind tobacco and obesity, according to the surgeon general’s report. It estimates ...
Coal tar can lead to health risks from long-term exposure. ... Environmentalists say the 11-acre site near the Norfolk Southern Railroad is likely still leaking cancer-causing materials into the ...
A Lake Norman woman who developed kidney cancer sued Duke Energy on Wednesday over its disposal of toxic coal ash near and beneath lake-area homes and businesses in the 1990s and 2000s.
One can produce a tar-like substance from corn stalks by heating them in a microwave oven. This process is known as pyrolysis. Tar is a dark brown or black viscous liquid of hydrocarbons and free carbon, obtained from a wide variety of organic materials through destructive distillation. Tar can be produced from coal, wood, petroleum, or peat. [1]
[8] [9] However, Goeckerman therapy is considered safe although use of tar may have the side-effects of contact dermatitis and mild local burning due to tar hypersensitivity. A retrospective study by Stern et al., of 1,373 patients concluded that there was an increase in skin cancers in those receiving repeated Goeckerman treatments compared to ...