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Smoky Skies in Northern India
Published November 3, 2022
Seasonal fires and a mix of other pollutants darkened skies in Delhi and beyond.
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Fuel Regulation Reduced Air Pollution from Shipping
Published October 19, 2022
A global standard limiting sulfur in ship fuel reduced artificial “ship track” clouds to record-low levels in 2020. Pandemic-related disruptions played a secondary role.
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Clearer View of Great Lakes Air Quality
Published July 28, 2022
Scientists and regulators are using satellite data and custom models from NASA to help monitor ozone pollution.
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A Global Decline in Carbon Monoxide
Published May 26, 2022
The widespread adoption of cleaner-burning technologies and declines in fire activity over the past two decades has drawn down global levels of the pollutant.
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No Breathing Easy for City Dwellers: Particulates
Published March 15, 2022
A new satellite-derived dataset links concentrations of fine particulate matter in air pollution with health outcomes in cities around the world.
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No Breathing Easy for City Dwellers: Nitrogen Dioxide
Published March 14, 2022
A new satellite-derived global dataset links concentrations of nitrogen dioxide with cases of pediatric asthma in urban areas around the world.
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An Extra Air Pollution Burden
Published November 9, 2021
New research shows that neighborhoods in Washington, D.C., with more people of color are exposed to more air pollution and have higher rates of disease.
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Scientific Questions Arrive in Ports
Published October 27, 2021
Satellite observations of nitrogen dioxide near key U.S. ports suggest that increased shipping activity and backlogs may be affecting air quality.
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COVID-19 Lockdowns Cut Pollution, But Not All of It
Published June 25, 2021
Dust storms and other weather phenomena offset some reductions in PM2.5 aerosol pollution.
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Reduced Fires Lead to Some Air Quality Improvements in Africa
Published March 14, 2021
Changes in fire patterns have led to seasonal reductions in nitrogen dioxide pollution.
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Nitrogen Dioxide Levels Rebound in China
Published May 22, 2020
With most lockdowns ending and economic activity resuming, levels of the air pollutant have returned to near normal for this time of year.
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Airborne Particle Levels Plummet in Northern India
Published April 20, 2020
Satellite data show that aerosol levels have dropped significantly since the COVID-19 lockdown began.
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