Air Quality Alert

CAZ567-310300-
Imperial Valley-
Including the cities of El Centro, Calexico, Alamorio, and Brawley
1038 AM PDT Wed May 29 2024

...AIR QUALITY ALERT FOR ELEVATED OZONE AIR POLLUTION...

The Imperial County APCD has issued an air quality alert in the
Imperial Valley due to high levels of ozone (smog). The air quality
alert is in effect Thursday, May 30, from 11 AM to 8 PM.

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 forecast air quality within Imperial County
visit the Imperial County Air Quality website at
http://www.imperialvalleyair.org/ or follow ICAPCD on Twitter,
facebook or Instagram (@county_air).

$$

AZC013-310400-

Air Quality Alert
Relayed by National Weather Service Phoenix AZ
914 AM MST Wed May 29 2024

...OZONE HIGH POLLUTION ADVISORY FOR MARICOPA COUNTY INCLUDING THE
PHOENIX METRO AREA THURSDAY...

The Arizona Department of Environmental Quality (ADEQ) has issued an
Ozone High Pollution Advisory for the Phoenix Metro Area on Thursday.

This means that forecast weather conditions combined with existing
ozone levels are expected to result in local maximum 8-hour ozone
concentrations that pose a health risk. Adverse health effects
increase as air quality deteriorates.

Ozone is an air contaminant which can cause breathing difficulties
for children, older adults, as well as persons with respiratory
problems. A decrease in physical activity is recommended.

You are urged to car pool, telecommute or use mass transit.
The use of gasoline-powered equipment should be reduced or done late
in the day.

For details on this High Pollution Advisory, visit the ADEQ internet
site at www.azdeq.gov/forecast/phoenix or call 602-771-2300.

$$