High levels of air pollution are linked to an increased risk of mouth cancer. Scientists have previously linked high air pollution to health problems from a higher risk of dementia to asthma and even changes in the heart, with recent research suggesting there is no “safe level” of air pollution.

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High levels of air pollution are linked to an increased risk of mouth cancer. Scientists have previously linked high air pollution to health problems from a higher risk of dementia to asthma and even changes in the heart, with recent research suggesting there is no “safe level” of air pollution.