News / Health

    WHO: Diesel Exhaust Causes Cancer

    Buses spew diesel-fuel exhaust as they start up and pull away from an elementary school near Los Angeles, September. 6, 2000.Buses spew diesel-fuel exhaust as they start up and pull away from an elementary school near Los Angeles, September. 6, 2000.
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    Buses spew diesel-fuel exhaust as they start up and pull away from an elementary school near Los Angeles, September. 6, 2000.
    Buses spew diesel-fuel exhaust as they start up and pull away from an elementary school near Los Angeles, September. 6, 2000.
    The World Health Organization, upgrading a previous warning, said June 12 that diesel exhaust causes cancer and called for tighter emissions standards, comparing the risk of exhaust to second-hand cigarette smoke.

    Tuesday’s announcement comes after international experts spent a week reviewing new research, including an influential long-term study of more than 12,000 miners who were heavily exposed to diesel exhausts.

    The rating upgrades one from 1988, when the WHO’s International Agency for Research on Cancer stated that diesel exhaust was “probably carcinogenic” to humans. This prompted many countries to tighten diesel emission standards. Businesses responded with innovations such as lower-sulphur fuel, new engine designs and better exhaust controls, especially in North America and Europe.

    Diesel industry lobbyists criticize WHO’s reliance on the mining study because researchers lacked exact data on exposure levels during the study’s early years. Meanwhile, diesel engine makers point to their new design that produce 95 percent less nitrogen oxide, particulate, and sulfur emissions than older truck and bus engines.

    The US Environmental Protection Agency continues to classify diesel more cautiously than the WHO, calling it a “likely” carcinogen.

    But Ken Donaldson, a professor of respiratory toxicology at the University of Edinburgh, told CBS News, “It’s pretty well known that if you get enough exposure to diesel, it’s a carcinogen.” However, he adds, “For the man on the street, nothing has changed… It’s a known risk but a low one for the average person, so people should go about their business as normal… you could wear a mask if you want to, but who wants to walk around all the time with a mask on?”

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    Comment Sorting
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    by: Zian
    June 13, 2012 8:45 PM
    "For the man on the street, nothing has changed… It’s a known risk but a low one for the average person, so people should go about their business as normal… you could wear a mask if you want to, but who wants to walk around all the time with a mask on?"

    Its absolutely true...

    by: Jim Melvin from: usa
    June 12, 2012 6:34 PM
    Diesel causes cancer, this is decided by following miners, come on, you can do better than that. The mining industry has always had cancer problems from black lung in coal mines to silica dust in gold mines. you need to find a better case group than miners. Too many other variables in mines. study something current where newer technology is at work. Diesel has come a long way!

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