In this DI, high school student Tommy Liu builds a vehicle-mounted particulate matter monitoring system that siphons power from harvested wind energy from vehicle motion and an integrated ...

Thinking about a personal air pollution sensor? Based on cost and on laboratory and field evaluations by air pollution experts, we recommend the PA-II by PurpleAir (purpleair.com) as the best outdoor ...

Air pollution kills an estimated 7 million people every year. Tiny soot and dust particles found in city air and biomass-fueled kitchens are the main culprits. Scientists call it PM2.5, meaning ...

According to [Dr. Tom Lehrer’s] song Pollution, “Wear a gas mask and a veil. Then you can breathe, long as you don’t inhale!” While the air quality in most of the world hasn’t gotten that bad, there ...

When sitting in traffic in your car, it’s easy to feel safe and distant from the world outside. Cocooned in a metal shell, protected from what’s on the other side of body panels and glass. But there’s ...

The Environmental Protection Agency’s emission factor resource, AP-42, is not your only option for developing particulate matter (PM) emission rates. Results of a prominent PM emissions measurement ...