Grist: Breathing nasty urban pollution does more than clog up your lungs -- it actually messes with your genes. This disturbing news comes from a paper published last month, and could change the way we think about pollution.
The study`s author, University of British Columbia researcher Chris Carlsten, put volunteers in a walled-in smog aquarium, exposed them to levels of air pollution similar to those found in the worlds most polluted cities, and then looked for changes at the level of the human genome....