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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 ash contains many toxic substances that may affect human health, if people are exposed to them above a certain concentration in the form of particulate matter.So it is necessary to avoid situations in which employees working in coal-fired power plants or public members living close to coal ash landfills will be exposed to high coal ash dust concentrations. [4]
It is a component of coal tar, cigarette smoke and smog and thought to be a major contributor to its carcinogenic properties. [1] The mutagenicity of benzo[ c ]fluorene is mainly attributed to formation of metabolites that are reactive and capable of forming DNA adducts . [ 2 ]
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 ...
The World Health Organization has identified glyphosate as "possibly carcinogenic to humans" and a study published earlier this year showed that glyphosate raised the cancer risk of those exposed ...
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]
Here's what causes food poisoning, when you should be worried and what can be done to prevent having to experience it in the first place. Food poisoning is extremely common. But that doesn't mean ...
Popular cooking oils used in ultra-processed Western diets may be causing a surge in colon cancer cases, a new US government-led study has shown.. Unhealthy seed oils like sunflower, grapeseed ...