• jadero@mander.xyz
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    4 months ago

    Interesting. One of the chemicals they reference is tetrachloroethylene. According to this Wikipedia article:

    Perhaps the greatest use of TCE is as a degreaser for metal parts. It has been widely used in degreasing and cleaning since the 1920s because of its low cost, low flammability, low toxicity and high effectivity as a solvent. The demand for TCE as a degreaser began to decline in the 1950s in favor of the less toxic 1,1,1-trichloroethane. However, 1,1,1-trichloroethane production has been phased out in most of the world under the terms of the Montreal Protocol, and as a result, trichloroethylene has experienced some resurgence in use as a degreaser.[17]

    My grandfather had Parkinson’s. I would imagine that he had plenty of exposure in his work as a mechanic from about 1925 on.