More bad air quality news for Portland. The cancer risk for breathing Portland air is 7th worst in the nation, out of 3,000 counties. Only in New York and Southern California is the air more carcinogenic. The risk is small, but very real. Portland’s air is capable of causing more than 300 extra cancers among its 600,000 population, as measured over a lifetime of 70 years. The risk to your brain and nervous system in...
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