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Chimney sweeps' cancer, also called soot wart or scrotal cancer, is a squamous cell carcinoma of the scrotum. It has the distinction of being the first reported form of occupational cancer, and was initially identified by Percivall Pott in 1775. [1] It was initially noticed as being prevalent amongst chimney sweeps.
A chimney sweep is a person who inspects then clears soot and creosote from chimneys. The chimney uses the pressure difference caused by a hot column of gas to create a draught and draw air over the hot coals or wood enabling continued combustion. Chimneys may be straight or contain many changes of direction. During normal operation, a layer of ...
The National Chimney Sweep Guild ( NCSG) is a non-profit trade association for chimney sweeps and chimney and venting manufacturers in the United States and Canada. Based in Plainfield, Indiana, it has approximately 1,100 member companies. Member companies range in size from the owner-operator sole proprietor chimney sweep companies to those ...
According to her, the average price for the service is between $100 and $200, depending on how many chimneys you have or how many floors down the sweep has to go. The price range for this service ...
Percivall Pott, engraved from an original picture by Nathaniel Dance-Holland, National Library of Medicine, Images from the History of Medicine.. Percivall Pott (6 January 1714, in London – 22 December 1788) was an English surgeon, one of the founders of orthopaedics, and the first scientist to demonstrate that cancer may be caused by an environmental carcinogen, namely chimney sweeps ...
Baby chimney swifts are altricial—naked, blind and helpless when they hatch. Fledglings leave the nest after a month. [57] The average chimney swift's life span is 4.6 years, [60] but one is known to have lived more than 14 years. It was originally banded as an adult, and was recaptured in another banding operation some 12.5 years later. [61]
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