New Theories Might Show Why Air Pollution Is So Harmful

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New theories from scientists explain possible reasons behind the toxic nature of air pollution.

New theories from scientists explain possible reasons behind the toxic nature of air pollution, according to The New York Times.

Toxins are delivered in a variety of methods, cars, coal-fires, oil refineries, indoor heating, and cooking to name some. Furthermore, over one billion people smoke cigarettes, filling their lungs with toxins. Air pollution and tobacco cause around 20 million premature deaths annually. It is a serious issue.

Scientists are questioning why these air pollutants are so toxic to humans. Some believe that the answer to this question goes back millions of years when early humans were surrounded by air toxins. Through the years, evolutionary defenses were developed against these pollutants and may help provide some defense today.

However, the scientists continued that these genetic adaptations might increase our vulnerability to air pollution. Evolutionary genes attempting to mitigate side effects may compromise the effectiveness of the defenses.

New theories from scientists explain possible reasons behind the toxic nature of air pollution.

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