1 paroxysmal Pertaining to or marked by paroxysm; caused by paroxysms or convulsions of nature. 2  paroxysmal Specifically In geology: Relating to or produced by a violent convulsion of nature.
Inorganic lead compounds are Group 2A - Probably carcinogenic to humans. American Conference for Governmental Industrial Hygienists (ACGIH): A3 - Confirmed animal carcinogen. Teratogenicity / Embryotoxicity: DEVELOPMENTAL HAZARD. May harm the unborn child. Known to cause: learning disabilities, effects on behaviour.
Dow's cancer-causing 'garbage' chemical in drinking water. For more than 50 years, Dow Chemical Company and Shell Oil knowingly included a highly toxic waste chemical in their fumigant pesticide products, rather than paying to dispose of it properly. The chemical, 1,2,3-trichloropropane (TCP), is a known carcinogen.