There are other different types of masks: N99 and N100 Masks: These provide even higher levels of filtration, with N99 filtering out 99% of airborne particles and N100 filtering up to 99.97%.

A new study shows how different types of pollution are affecting infertility in men and women. In a recent study published in the BMJ and reported on by the Guardian, both air pollution and noise ...

Scientists have also explored how and why different types of air pollution harm health. Some particles, for example, are so small they can be inhaled deep into people's lungs, ...

Keeping It Clean. 6/5/2025 | 9m 12s Video has Closed Captions | CC. This episode is from WHRO’s Spotlight Earth series. Watch this video to explore water pollution. Aired 06/05/2025 | Rating TV-G ...

The Great Lakes have long faced pollution threats. The latest might be the most insidious. What happens to the different types of plastic in the environment?

Scientists have also explored how and why different types of air pollution harm health. Some particles, for example, are so small they can be inhaled deep into people's lungs, ...

Scientists have also explored how and why different types of air pollution harm health. Some particles, for example, are so small they can be inhaled deep into people's lungs, ...