Ammonium is one of the specific components of fine particulate matter (PM2.5), that has been linked to a higher risk of death compared to other chemicals found in it, according to a new study.

Specific components of air pollution were linked to increased depression risk in older adults, new research suggested. A cohort study of nearly 24 million adults showed that long-term exposure to fine ...

This video demonstrates a hands-on investigation of air. It explains how to generate CO 2 gas so further tests can be run on the component of air.