Researchers at the Paul Scherrer Institute PSI have for the first time observed photochemical processes inside the smallest particles in the air. In doing so, they discovered that additional oxygen ...

A previously unknown mechanisms may explain why air pollution in the form of particulates causes heart attacks, stroke, and increasing mortality. Particulates in diesel exhaust are a substantial cause ...

A streamlined workflow using Six Sigma's DMAIC methodology was developed to identify and mitigate visible particles in biologics, reducing time and resources while maintaining quality. Visual ...

Particulates make us ill, and particulates affect the climate. The direct combustion of wood and other fuels is only partially responsible for producing fine particulates – the rest evolve from a ...

To expose and extract coal seams buried deep under mountains, miners blast through rock with explosives in a method called mountaintop removal mining. In Appalachia where such mining is widespread, ...

The regulatory compliance standards for modern pharmaceutical products are among the harshest in the world, demanding cutting-edge quality assurance and quality control procedures to ensure that ...

Tiny particles and troublesome gases in the outdoor air are ultimately responsible for some 3.3 million premature deaths annually, according to a comprehensive new look at the health effects of air ...

Dear Doctors: We live in the fire zone in Altadena, California. After the evacuations ended, we came home, and now my throat is constantly sore. There’s no smoke smell, but my husband says the air can ...

People have been choking on manmade air pollution for roughly half a million years, ever since Pleistocene cavemen huddled around the first campfires. That was clearly worth a few lungfuls of soot — ...

When I worked for the Environmental Protection Agency in the 2010s as an Obama administration appointee, I helped write and review dozens of regulations under the Clean Air Act. They included some ...