Air Quality Alert
Issued by NWS Sterling, VA

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AEUS71 KLWX 292048
AQALWX

Air Quality Alert Message
MD Dept of Environment and VA Dept of Environmental Quality
Relayed by National Weather Service Baltimore MD/Washington DC
440 PM EDT Tue Jul 29 2025

DCZ001-310400-
District of Columbia-
440 PM EDT Tue Jul 29 2025

...AIR QUALITY ALERT IS IN EFFECT FOR WEDNESDAY JULY 30 2025...

The Metropolitan Washington Council of Governments and District
Department of Environment has issued a Code ORANGE Air Quality Alert
Wednesday for the District of Columbia.

A Code Orange Air Quality Alert means that air pollution
concentrations within the region may become unhealthy for sensitive
groups. Sensitive groups include children, people suffering from
asthma, heart disease or other lung diseases and the elderly. The
effects of air pollution can be minimized by avoiding strenuous
activity or exercise outdoors.

For more information on ground-level ozone and fine particles visit
the web site https://www.mwcog.org/environment/air/forecast/.

$$

VAZ053-054-505-506-526-527-310400-
Fairfax-Western Loudoun-Eastern Loudoun-Northwest Prince William-
Central and Southeast Prince William/Manassas/Manassas Park-
Arlington/Falls Church/Alexandria-
440 PM EDT Tue Jul 29 2025

...AIR QUALITY ALERT IS IN EFFECT FOR WEDNESDAY JULY 30 2025...

The Virginia Department of Environmental Quality has issued a
Code ORANGE Air Quality Alert Wednesday for
Northern Virginia.

A Code Orange Air Quality Alert means that air pollution
concentrations within the region may become unhealthy for
sensitive groups. Sensitive groups include children, people
suffering from asthma, heart disease or other lung diseases and
the elderly. The effects of air pollution can be minimized by
avoiding strenuous activity or exercise outdoors.

For more information on ground-level ozone and fine particles
visit the web site Virginia DEQ air quality web site at
www.deq.virginia.gov.

$$

MDZ013-504-506-310400-
Central and Southeast Montgomery-Central and Southeast Howard-
Prince Georges-
440 PM EDT Tue Jul 29 2025

...AIR QUALITY ALERT IS IN EFFECT FOR WEDNESDAY JULY 30 2025...

The Maryland Department of the Environment has issued a Code
ORANGE Air Quality Alert Wednesday for
the Maryland suburban DC region.

A Code Orange Air Quality Alert means that air pollution
concentrations within the region may become unhealthy for
sensitive groups. Sensitive groups include children, people
suffering from asthma, heart disease or other lung diseases and
the elderly. The effects of air pollution can be minimized by
avoiding strenuous activity or exercise outdoors.

For more information on ground-level ozone
and fine particles visit the web site
mde.maryland.gov/programs/air/AirQualityMonitoring/Pages/index.aspx.

$$

MDZ011-014-310400-
Southern Baltimore-Anne Arundel-
440 PM EDT Tue Jul 29 2025

...AIR QUALITY ALERT IS IN EFFECT FOR WEDNESDAY JULY 30 2025...

The Maryland Department of the Environment has issued a Code
ORANGE Air Quality Alert Wednesday for
the Baltimore City Metro and Annapolis region.

A Code Orange Air Quality Alert means that air pollution
concentrations within the region may become unhealthy for
sensitive groups. Sensitive groups include children, people
suffering from asthma, heart disease or other lung diseases and
the elderly. The effects of air pollution can be minimized by
avoiding strenuous activity or exercise outdoors.

For more information on ground-level ozone
and fine particles visit the web site
mde.maryland.gov/programs/air/AirQualityMonitoring/Pages/index.aspx.

$$

MDZ006-507-310400-
Northern Baltimore-Northern Harford-
440 PM EDT Tue Jul 29 2025

...AIR QUALITY ALERT IS IN EFFECT FOR WEDNESDAY JULY 30 2025...

The Maryland Department of the Environment has issued a Code
ORANGE Air Quality Alert Wednesday for
Northern Baltimore.

A Code Orange Air Quality Alert means that air pollution
concentrations within the region may become unhealthy for
sensitive groups. Sensitive groups include children, people
suffering from asthma, heart disease or other lung diseases and
the elderly. The effects of air pollution can be minimized by
avoiding strenuous activity or exercise outdoors.

For more information on ground-level ozone
and fine particles visit the web site
mde.maryland.gov/programs/air/AirQualityMonitoring/Pages/index.aspx.

$$

MDZ008-508-310400-
Southern Harford-Cecil-
440 PM EDT Tue Jul 29 2025

...AIR QUALITY ALERT IS IN EFFECT FOR WEDNESDAY JULY 30 2025...

The Maryland Department of the Environment has issued a Code
ORANGE Air Quality Alert Wednesday for
Northeast Maryland.

A Code Orange Air Quality Alert means that air pollution
concentrations within the region may become unhealthy for
sensitive groups. Sensitive groups include children, people
suffering from asthma, heart disease or other lung diseases and
the elderly. The effects of air pollution can be minimized by
avoiding strenuous activity or exercise outdoors.

For more information on ground-level ozone
and fine particles visit the web site
mde.maryland.gov/programs/air/AirQualityMonitoring/Pages/index.aspx.

$$