Articles on Air pollution

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Ultrafine particles stem from a variety of natural and human-made sources, including vehicle exhaust. Joe Raedle/Getty Images

Tiny airborne particles within air pollution could be a silent killer – new study uncovers hidden risks and reveals who’s most at risk in New York state

Ultrafine particles are approximately one-thousandth the width of a human hair. But because of their tiny size, they are easily inhaled – and typically more dangerous than larger particles.
Fine particulate matter from wildfires can cause long-term health harms. Gary Hershorn/Getty Images

How researchers measure wildfire smoke exposure doesn’t capture long‑term health effects − and hides racial disparities

Which is riskier for your health: a few days of very bad PM₂.₅ exposure or many more days of slightly bad exposure? Researchers developed new metrics to provide better answers.
Kearny Generating Station, a former coal-fired baseload power plant, now a gas-fired peaker, on the Hackensack River in New Jersey. Jim Henderson/Wikipedia

Utilities rely on dirty ‘peaker’ plants when power demand surges, but there are alternatives

As renewables account for a growing share of electricity supply, fossil fuel plants are increasingly used to balance fluctuations in renewable generation – emitting health-threatening pollutants.
A wildfire burns as an empty street in Jasper, Alta. is shown in this July 24, 2024 handout photo from the Jasper National Park Facebook page. (THE CANADIAN PRESS/Facebook, Jasper National Park)

As wildfires become more frequent and intense, how will persistent smoke exposure affect long‑term health?

As communities are exposed to wildfire smoke more regularly and over longer durations year after year, it is critical to consider what these changing exposure patterns mean for our long-term health.

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