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 ...

Above: The Aeroqual AQY 1 installed at my home in Michigan. Note that this is not an ideal siting--an air quality monitor should be set up in an area free of potential air flow influences of buildings ...

Startup PurpleAir makes a living counting dust. Its consumer-level sensors measure particles of dust in air—airborne particulate matter (PM)—using laser particle counters that can count particle sizes ...

Wildfire smoke has dominated our skies, headlines and lungs over the past few weeks. Small particles which can lead to ...

Air pollution is often monitored using instruments that are accurate but can be bulky, costly, or difficult to reuse continuously after particle ...

Particle sensing and monitoring technologies have emerged as a vital interdisciplinary field integrating microfabrication, sensor design and advanced signal processing to detect and quantify airborne ...

In a follow-up to the “Reaching for Air” series, residents had their homes monitored for PM2.5 and other factors indoors.

Air pollution is often monitored using instruments that are accurate but can be bulky, costly, or difficult to reuse ...

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 ...