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air quality

Smokestacks emit clouds of gas at sunset.
Posted inNews

Toxic Ethylene Oxide May Exceed Safe Levels in Cancer Alley

by Grace van Deelen 11 June 202411 June 2024

Concentrations of the cancer-causing chemical far surpass EPA threshold levels for safety in southeastern Louisiana.

Satellite view of a dust storm over the Middle East
Posted inNews

Dust Declines in Parts of Asia May Be Caused by the Warming Arctic

by Skyler Ware 4 June 20244 June 2024

Rising Arctic temperatures have changed both wind patterns and precipitation in areas that carry dust to West and South Asia, but the change may not be permanent.

Emissions rise from smokestacks in the distance, beyond trees silhouetted by low sunlight.
Posted inScience Updates

An Air Quality Model That Is Evolving with the Times

by Min Huang, Gregory Carmichael and Kevin Bowman 28 May 202428 May 2024

The pioneering Sulfur Transport and Deposition Model, initially designed to simulate atmospheric sulfur, continues to find new applications and value in environmental science and policymaking.

World map from the paper.
Posted inEditors' Highlights

A Powerful New Model for U.S. Climate–Air Quality Interactions

by Jiwen Fan 10 May 202410 May 2024

NOAA’s Geophysical Fluid Dynamics Laboratory has developed a new variable-resolution global chemistry-climate model for research at the nexus of U.S. climate and air quality extremes.

On 30 December 2021, a grass fire sparked outside Boulder, Colo.
Posted inFeatures

When Fieldwork Comes Home

by Grace van Deelen 25 April 202425 April 2024

The impacts of the 2021 Marshall Fire rippled through a community of Colorado geoscientists, spurring them to action.

Photo of a dust storm hitting a home in an arid region.
Posted inEditors' Highlights

A Dust-Up Over Dust Measurements

by Gabriel Filippelli 29 January 202425 January 2024

Dust has significant impacts on the environment, climate, air quality, and human health, yet dust events are underestimated and therefore do not receive the level of attention necessary.

Arches within the Church of the Acheiropoietos
Posted inNews

Climate Change Turns Up the Heat in Greek Museums

by Gabriella Lewis 15 December 202315 December 2023

Museums and historic buildings use indoor microclimates to preserve artifacts, but rising temperatures could create a breeding ground for pests, mold, and deterioration.

A large forest fire burns on a mountainside.
Posted inNews

Natural Nitrogen Emissions Are Rising in California

by Nathaniel Scharping 13 October 202313 October 2023

Wildfires and soil microbes are releasing more nitrogen oxides in California as the climate gets warmer and drier.

A black plume of smoke behind two single-family homes
Posted inNews

Some Chemicals Lingered for Weeks After Ohio Train Derailment

by Elise Cutts 23 August 202323 August 2023

Researchers drove around a van outfitted with a sensitive mass spectrometer to measure airborne chemicals weeks after the disaster.

A photo of city buildings at dusk with cars driving by. The air is hazy.
Posted inNews

Air Pollution Increases COVID-19 Risks

Javier Barbuzano, Science Writer by Javier Barbuzano 2 August 20232 August 2023

A crop of new studies shows that exposure to air pollution adds days to hospital stays and increases the likelihood of death from COVID-19.

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Features from AGU Publications

Research Spotlights

How Earthquakes Shake Up Microbial Lake Communities

24 July 202524 July 2025
Editors' Highlights

Mapping the Whereabouts of Continents

24 July 202523 July 2025
Editors' Vox

JGR: Space Physics Launches New Instrumentation Article Type

23 July 202521 July 2025
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