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DW News July 8, 2026

Pollution Affects Fertility

There is a new study about pollution affecting fertility. Researchers looked at men in Utah and found that air pollutants can affect sperm development. This can cause subtle DNA changes that can affect gene activity. Ozone and nitrogen dioxide are the pollutants most linked to these changes.

Professor Richard Lee from the University of Nottingham said that pollution is a major source of contaminants that can impact on the quality of sperm. He also said that many of these contaminants can reduce sperm counts. This is a big problem because sperm counts have been decreasing for 50 to 70 years.

Professor Lee said that the best way to stay healthy is to lead a healthy lifestyle. This includes avoiding exposures to excess amounts of pollutants. He also said that face masks and trips out of the city can help.

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