New air pollutant linked to cancer, asthma
New research has found that many of us breathe in as much as 300
cigarettes worth of harmful air pollution per day. This
newly-discovered pollution is a type of long-lasting free radical
similar to the kind found in tobacco. It is sent into the air from
car exhaust, smokestacks, and even household chimneys. Researchers
say this pollution contributes to asthma and emphysema, and it may
help explain why lifelong non-smokers develop lung cancer.
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