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Air Quality Alert
Issued: 8:45 PM Jun. 23, 2024 – National Weather Service
200 PM PDT Sun Jun 23 2024

...AIR QUALITY ALERT FOR ELEVATED OZONE AIR POLLUTION FOR SOUTH COAST
AIR BASIN AND AIR QUALITY ALERT FOR ELEVATED OZONE AND ELEVATED
PARTICLE POLLUTION LEVELS FROM WIND BLOWN DUST IN THE COACHELLA
VALLEY...

The South Coast AQMD has issued an air quality alert in the South
Coast Air Basin and Coachella Valley due to high levels of ozone
(smog). The air quality alert is in effect through 9 AM Wednesday.

Elevated levels of ozone  the predominant summertime pollutant
are likely to result in poor air quality in the afternoon and early-
evening hours. Ozone air pollution can cause respiratory health
problems, including trouble breathing, asthma attacks, and lung
damage. Children, older adults, and people with asthma or COPD may be
more sensitive to the health effects of ozone.

Air quality can change depending on time of day and weather
conditions. Increased emissions of chemicals and faster ozone
formation rates due to heat, along with low winds and stagnant
weather can cause unusually high and persistent levels of ozone
pollution.

To help minimize ozone air pollution levels:
Limit the use of gasoline powered lawn and garden equipment until
evening hours  Conserve electricity and set your air conditioner at
a higher temperature  Try to delay trips to the gas station and the
use of household chemicals until the evening

Check air quality levels and take appropriate action as needed. When
air quality index (AQI) levels are Unhealthy for Sensitive Groups
(orange), people with heart or lung disease, pregnant women,
children, and older adults should limit prolonged or heavy outdoor
exertion. When air quality reaches Unhealthy (red) AQI levels,
everyone may experience adverse health effects and sensitive groups
should avoid prolonged time outdoors. At Very Unhealthy (purple) AQI
levels, sensitive groups should avoid all outdoor physical activity
and everyone else should avoid prolonged or heavy outdoor exertion.

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.

...AIR QUALITY ALERT DUE TO ELEVATED PARTICLE POLLUTION LEVELS FROM WINDBLOWN DUST...

The South Coast AQMD has issued an air quality alert due to
increased particle pollution from blowing dust in the Coachella
Valley. The air quality alert is in effect through 9 AM on
Wednesday.

In areas directly impacted by high levels of windblown dust, limit
your exposure by remaining indoors with windows and doors closed and
avoiding vigorous physical activity. Run your air conditioner or an
air purifier. If temperatures allow, avoid using whole house fans or
swamp coolers that bring in outside air.

Exposure to high particle pollution levels can cause serious health
problems, including asthma attacks, heart and lung disease symptoms,
and increased risk of respiratory infections. People with heart or
lung diseases should follow their doctor's advice for dealing with
episodes of unhealthy air quality. Children, older adults, and people
with respiratory or heart disease should avoid prolonged exposure
and strenuous activities when particle pollution levels are high.

To help minimize outdoor particle pollution levels:
Carpool, telecommute, reduce trips, or take public transportation
Slow down if driving on dirt roads  Stabilize loose soils

Levels of particle pollution can vary hour by hour and by location
depending on wind conditions.

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