Two of the eight chemicals added to the 12th “Report on Carcinogens” are used every day. The report, from the NIH’s National Toxicology Program, cited repeated exposure during manufacturing as much riskier than normal exposure. Consumers were advised not to come in contact with either formaldehyde, a known carcinogen, or styrene, a probable carcinogen. Questionable amounts of formaldehyde were found in items such as plywood and at hair salons, among other businesses. The amount of styrene in items such as bathtubs and disposable foam dining ware is typically low enough to cause less concern. Also dubbed a carcinogen was aristolochic acids. Captafol, finely spun glass wool fibers, cobalt-tungsten carbide, riddelliine and ortho-nitrotoluene were designated probable carcinogens.

Source: The New York Times