Keeping indoor air clean can reduce the chance of spreading coronavirus

Being indoors with other people is a recipe for spreading the coronavirus. But removing airborne particles through proper ventilation and air filtration can reduce some of that risk.

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How to use ventilation and air filtration to prevent the spread of coronavirus indoors

Good ventilation can reduce the risk of catching coronavirus. An environmental engineer explains how to know if enough outside air is getting into a room and what do to if ventilation is bad.

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A massive Saharan dust plume is moving into the southeast US, bringing technicolor sunsets and suppressing tropical storms

From June through October, it's not unusual for huge Saharan dust plumes to blow across the Atlantic. They can darken skies but also bring calmer weather and electric sunsets. Here's how they form.

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Days with both extreme heat and extreme air pollution are becoming more common – which can't be a good thing for global health

In South Asia, days with both extreme heat and extreme pollution are expected to increase 175% by 2050. Separately, the health effects are bad; together they will likely be worse.

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A few ‘super polluters’ spew most industrial pollution

Just a handful of facilities that emit unusually high levels of toxic chemicals account for the majority of industrial pollution year after year.

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What we do and don't know about the links between air pollution and coronavirus

Yes, poor air quality is bad for your health – but beware simplistic correlations with COVID-19.

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‘Tweezers’ show how particles evolve in the atmosphere

"The optical tweezers allow us to ... directly probe the dynamic evolution of all these critical properties of atmospheric particles and how they feedback on each other as each particle continues to evolve."

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Car pollution is a major source of ultrafine particles

Auto emissions are key to the creation of "ultrafine particles," which have been linked to health problems and birth defects, researchers say.

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Particles from 3D printers may be bad for your health

3D printers produce particles that can negatively affect air quality indoors, make the air toxic, and potentially harm respiratory health.

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Ozone and your skin oils mix to create ‘Pig-Pen effect’

"Some people call this higher concentration of pollutants around the human body the personal cloud... we call it the 'Pig-Pen Effect.'"

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