New Delhi has the most polluted air on earth. In 2019, particulate matter in the city reached levels more than 20 times higher than the worst air pollution measured in Manhattan that same year.

People breathing contaminated air over the course of years are at greater risk of developing numerous diseases. This is thought to be due to highly reactive components in particulate matter, which ...

This chapter provides a background for the committee’s evaluation of the health effects of indoor exposure to fine particulate matter (PM 2.5) and practical mitigation solutions by briefly summarizing ...

One way car manufacturers can reduce their vehicles' harmful emissions is through particulate matter filters. Particulate matter refers to the most common and harmful mixture of pollutant chemicals ...