As chronic respiratory diseases, such as Chronic Obstructive Pulmonary Disease (COPD), have become global public health ...

The World Heath Organisation recommends that the annual average level of the PM2.5 pollutant should not exceed 5 μg/m3.

Prolonged exposure to high levels of PM2.5 -- particulate matter small enough to penetrate deep into the lungs and ...

A man who "panicked" and fled when his DNA was discovered on a firearm used in a shooting just days before it was found ...