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  1. Heavy traffic in New Delhi

    Predicting unhealthy air

    Residents of New Delhi and nearby heavily polluted areas of northern India now have access to air quality forecasts that provide critical information for reducing their exposure to potentially unhealthy air.

    • Air Quality

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  2. Methane sensors on a rooftop

    Untangling methane sources

    NCAR supported research to efficiently measure methane and associated chemicals in the atmosphere.

    • Air Quality

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  3. Montage of outdoor scenes from Atlanta, a Michigan forest, and New York City

    Detailed look at air pollution reveals surprising variety at molecular level

    A research team, led by Yale and including an NCAR visiting scientist, has found that a type of air pollution is much more complicated than previous studies indicated.

    • Air Quality

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  4. NSF/NCAR C-130 research aircraft being readied for takeoff

    Scientists fly into the heart of smoke plumes

    Scientists are gathering the most comprehensive dataset yet on western wildfire smoke and its impacts on weather, air quality, and climate.

    • Air Quality,
    • Weather

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  5. Satellite image of nitrogen dioxide levels

    U.S. gains in air quality are slowing down

    The slowdown may make it more difficult for the US to meet goal of reduced ozone pollution.

    • Air Quality

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