weather.gov     
National Weather Service

Watches, Warnings & Advisories
NWS Homepage

Air Quality Alert


CAZ055-210215-
San Bernardino County Mountains-
Including the cities of Crestline, Lake Arrowhead, Big Bear City,
Big Bear Lake, Running Springs, and Wrightwood
713 PM PDT Fri Jul 19 2024

...AIR QUALITY ALERT FOR ELEVATED FINE PARTICLE POLLUTION LEVELS DUE
TO WILDFIRE SMOKE...

The South Coast AQMD has issued an air quality alert due to
increased fine particle pollution from wildfire smoke in the region.
The air quality alert is in effect from 4 PM Friday to 2 PM
Saturday.

If you smell smoke or see ash due to a wildfire, remain indoors with
windows and doors closed or seek alternative shelter, if feasible.
Avoid vigorous physical activity and run your air conditioner and/or
an air purifier. If possible, do not use whole house fans or swamp
coolers that bring in outside air. Avoid burning wood in your
fireplace or firepit and minimize sources of indoor air pollution
such as candles, incense, pan-frying, and grilling. If you must be
outdoors, keep the time brief and wear a tightly-fitted N-95 or P-
100 respirator to help reduce exposure. Limit the use of gasoline
powered lawn and garden equipment.

Exposure to particle pollution can cause serious health problems,
aggravate lung disease, cause asthma attacks and acute bronchitis,
and increase risk of respiratory infections. People with heart or
lung diseases should follow their doctor`s advice for dealing with
episodes of unhealthy air quality. Additionally, people with
respiratory or heart disease, older adults, and children are
particularly susceptible and should avoid prolonged exposure,
strenuous activities or heavy exertion as conditions dictate.

Levels of particle pollution can vary hour by hour and by location
depending on fire behavior and local weather conditions.

In South Coast AQMD to view current and forecasted air quality
levels, visit the South Coast Air Quality Management District
website at aqmd.gov or download the mobile app at
www.aqmd.gov/mobileapp. Additional details for this air quality
alert may be available at www.aqmd.gov/advisory.

In Mojave Desert AQMD to view current and forecasted air quality
levels, visit the Mojave Desert Air Quality Management District
website at mdaqmd.ca.gov. Additional details for this air quality
alert may be available at www.mdaqmd.ca.gov/advisories.

In the antelope Valley AQMD to view current and forecasted air
quality levels, visit the antelope Valley Air Quality Management
District website at www.avaqmd.ca.gov.

For the latest air quality forecasts and information, visit the
website at aqmd.gov.

$$

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE