About ARL

The Air Resources Laboratory’s (ARL) mission is to improve the ability of the Nation to protect human and ecosystem health and to support a vibrant economy through advanced atmospheric sciences and technologies. ARL’s research focus is on the surface of the earth from a few feet below the soil up to 2-3 miles in the atmosphere (aka the boundary layer), which has a direct impact on people’s health and safety, business, and the environment. ARL studies the physical and chemical processes that occur in the boundary layer, on time scales spanning a few hours to several years.

ARL studies the mixing, exchange, and transformation of energy, moisture, trace gases, and particles, and contributes inputs to meteorological models and forecast operations that are vital in improving weather, climate and air quality forecasts. Primary applications include emergency response, homeland security, air quality, weather forecasts and climate outlooks, and commerce and transportation. ARL’s vision is to effectively protect people, the environment, and commercial activities from atmospheric risks using the best available scientific understanding of boundary layer processes.

ARL News & Updates

Congratulations to Dr. Osinachi Ajoku for his selection as the inaugural Scientist-in-Residence at the Air Resources Laboratory

Back trajectories of June 2023 Canadian wildfire with 3-hour residence times. Courtesy of Lauryn Smith, Howard University.

May 23, 2024

Dr. Osinachi Ajoku from Howard University was selected as the 2024 Scientist-in-Residence working with ARL’s Atmospheric Sciences Modeling Division. His work will investigate the impacts of regional emissions and long-range transport of ozone and aerosols on boundary layer evolution.

ARL’s Air Resources Car measuring air pollution after the Key Bridge collapse

The NOAA Air Resources Car

May 22, 2024

After the collapse of the Francis Scott Key Bridge, scientists at ARL have been busy measuring air pollution in the Curtis Bay area east of the bridge. ARL has been using the NOAA Air Resources Car to measure air pollution in this community since 2022 due to the heavy traffic, trucks and machinery traversing the area. The significant reduction of traffic now gives them an opportunity to gain a better understanding of the air quality impacts in that neighborhood. See the full story here.

Deputy Secretary of Commerce visits Air Resource Laboratory UrbanNet site

Group of 7 men in suits standing on a flat rooftop with a metal frame tower on the roof behind them and the Washington Monument in the background.

(L-R) Dr. Michael C. Morgan, Dr. Rick Spinrad, Deputy Secretary Don Graves, Dr. Steven Thur, Dr. Ariel Stein, Dr. Howard Diamond, and Dr. James Whetstone.

May 8, 2024

The NOAA Air Resources Laboratory (ARL) brought Deputy Secretary of Commerce Don Graves to the top of the Herbert C. Hoover Building in Washington D.C. to see one of ARL’s UrbanNet sites on May 3, 2024.