Skip to content An Air Quality Alert is in effect Thursday, June 12, 2025 including the following jurisdictions.
DISTRICT OF COLUMBIA.
Excepted from the National Weather Service:
…AIR QUALITY ALERT IN EFFECT FOR THURSDAY JUNE 12 2025…
Metropolitan Washington Council of Governments and District Department of Environment has issued a Code Orange Air Quality Action Day for Ground Level Ozone for the District of Columbia on Thursday.
An Air Quality Action Day means that Ground Level Ozone concentrations within the region may approach or exceed unhealthy standards. For additional information, please visit the Metropolitan Washington Council of Governments and District Department of Environment at:https://www.mwcog.org/environment/air/forecast
An Air Quality Alert is in effect Thursday, June 12, 2025 including the following jurisdictions.
VIRGINIA: Fairfax, Arlington, Falls Church, Alexandria, Loudoun, Prince William, Manassas, Manassas Park.
Excepted from the National Weather Service:
…AIR QUALITY ALERT IN EFFECT FOR THURSDAY JUNE 12 2025…
Virginia Department of Environmental Quality has issued a Code Orange Air Quality Action Day for Ground Level Ozone for Northern Virginia on Thursday.
An Air Quality Action Day means that Ground Level Ozone concentrations within the region may approach or exceed unhealthy standards. For additional information, please visit the Virginia Department of Environmental Quality at:www.deq.virginia.gov
An Air Quality Alert is in effect Thursday, June 12, 2025 including the following jurisdictions.
MARYLAND: Prince George’s, central/southeast Montgomery, central/southeast Howard.
Excepted from the National Weather Service:
The Maryland Department of the Environment has issued a Code Orange Air Quality Action Day for Ground Level Ozone for the Suburban DC region on Thursday.
An Air Quality Action Day means that Ground Level Ozone concentrations within the region may approach or exceed unhealthy standards. For additional information, please visit the Maryland
Department of the Environment at:www.mde.maryland.gov/programs/air/AirQualityMonitoring/Pages/
index.aspx
An Air Quality Alert is in effect Thursday, June 12, 2025 including the following jurisdictions.
MARYLAND: southern Baltimore, Baltimore City, Anne Arundel.
Excepted from the National Weather Service:
…AIR QUALITY ALERT IN EFFECT FOR THURSDAY JUNE 12 2025…
Maryland Department of the Environment has issued a Code Orange Air Quality Action Day for Ground Level Ozone for the Metro Baltimore region on Thursday.
An Air Quality Action Day means that Ground Level Ozone concentrations within the region may approach or exceed unhealthy standards. For additional information, please visit the Maryland
Department of the Environment at:www.mde.maryland.gov/programs/air/AirQualityMonitoring/Pages/
index.aspx
An Air Quality Alert is in effect Thursday, June 12, 2025 including the following jurisdictions.
MARYLAND: Cecil, southeast Harford.
Excepted from the National Weather Service:
…AIR QUALITY ALERT IN EFFECT FOR THURSDAY JUNE 12 2025…
Maryland Department of the Environment has issued a Code Orange Air Quality Action Day for Ground Level Ozone for Northeast Maryland on Thursday.
An Air Quality Action Day means that Ground Level Ozone concentrations within the region may approach or exceed unhealthy standards. For additional information, please visit the Maryland
Department of the Environment at:www.mde.maryland.gov/programs/air/AirQualityMonitoring/Pages/
index.aspx
The air quality alerts in the Washington, DC region are updated for Thursday, June 12, 2025.