Air pollution a leading cause of cancer – U.N. agency
Author: Kate Kelland and Stephanie Nebehay
The air we breathe is laced with cancer-causing substances and is being officially classified as carcinogenic to humans, the World Health Organization’s cancer agency said on Thursday.
The International Agency for Research on Cancer (IARC) cited data indicating that in 2010, 223,000 deaths from lung cancer worldwide resulted from air pollution, and said there was also convincing evidence it increases the risk of bladder cancer.
Depending on the level of exposure in different parts of the world, the risk was found to be similar to that of breathing in second-hand tobacco smoke, Kurt Straif, head of the agency’s section that ranks carcinogens, told reporters in Geneva.
“Our task was to evaluate the air everyone breathes rather than focus on specific air pollutants,” deputy head Dana Loomis said in a statement. “The results from the reviewed studies point in the same direction: the risk of developing lung cancer is significantly increased in people exposed to air pollution.”
Air pollution, mostly caused by transport, power generation, industrial or agricultural emissions and residential heating and cooking, is already known to raise risks for a wide range of illnesses including respiratory and heart diseases.
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