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Outdoor air pollution a leading cause of cancer

outdoor-air-pollution-a-leading-cause-of-cancer

The International Agency for Research on Cancer (IARC), WHO's agency specialized for cancer, announced on October 16, 2013 that it has classified outdoor air pollution as carcinogenic to humans (Group 1). The world’s leading experts gathered around the IARC Monographs Programme concluded that there is sufficient evidence that exposure to outdoor air pollution causes lung cancer and raises the risk of bladder cancer. Air pollution was already known to increase the risk of respiratory and heart diseases.

According to Kurt Straif from IARC, the air we breathe has become polluted with a mixture of cancer-causing substances. We now know that outdoor air pollution is not only a major risk to health in general, but also a leading environmental cause of cancer deaths. According to WHO estimates, urban outdoor air pollution causes 1.3 million deaths globally every year.

Now, outdoor air pollution has been classified as a "Group 1" cause of cancer, the riskiest category on its four-step scale. The IARC had also conducted a separate evaluation of what is known as "particulate matter", classifying it as a "Group 1" cancer cause. Particulate matter (PM) includes both solid particles and liquid droplets found in air which can penetrate deep into the respiratory system.

Over a million lung cancer cases happens every year, mostly due to tobacco smoking. However, data from 2010 showed that 223 000 lung cancer deaths worldwide were the result of air pollution. The latest findings were based on overall air quality, and based on an in-depth study of thousands of medical research projects conducted around the world in recent years. IARC already measured the presence of individual chemicals and mixtures of chemicals in the air, including diesel engine exhaust, solvents, metals and dust. New predominant sources of outdoor air pollution was also recognized as transport, power generation, emissions from factories and farms, and residential heating and cooking. In addition, such matter has environmental effects such as corrosion, soiling, damage to vegetation and reduced visibility due to haze.

"Nobody has private air. We can't do very much for the air we breathe. This really needs collective action to solve the problem,"  IARC's Dana Loomis 

The Lancet Oncology will publish IARC's in-depth conclusions on October 24, 2013.

Featured image: Perhaps we should call it "smog city" by http://www.flickr.com/photos/61676142@N00/5246961795

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2 Comments

  1. The earth will be here way after the human species becomes extinct. Humanity is going to kill itself through habitat destruction. The rise in cancer cases is just what the profit seeking medical industry has been waiting for. It's a perfect residual income for them and those who feed from that trough(shareholders).

  2. Of course the leading cause for cancer isn't 2,000 + atomic bomb detonations with attendant poisons raining down every day or the burning of radioactive wastes everywhere or the decaying, crumbling over-50 year old nuke plants or nuke labs storing nuke waste in old oil drums out doors or tossed into desert canyons or all the depleted uranium the DOE is fobbing off on industries to use as sinkers, golf club filler, heavy machine counter-weights and all manner of consumer goods with no warning labels at all or the insane amount of scanners at airports people have to walk through, often repeatedly, every trip or air travelers who don't know they are flying through clouds of radioactivity from Fukushima's multiple meltdowns or from drinking milk laced with stontium 90 or other foods contaminated by black rain or a zillion other ways nukes are KILLING US ALL.

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