Air pollution linked to higher breast cancer risk. The study tracked nearly 90,000 Canadian women over two decades and found that younger women who live in areas that experience high air pollution had a 30 per cent higher risk of developing breast cancer before menopause than others.

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Air pollution linked to higher breast cancer risk. The study tracked nearly 90,000 Canadian women over two decades and found that younger women who live in areas that experience high air pollution had a 30 per cent higher risk of developing breast cancer before menopause than others.