United States Active Warning and Alerts Center

AIR QUALITY ALERT IN EFFECT WEDNESDAY

Pima County, AZ

The Arizona Department of Environmental Quality (ADEQ) has issued an
Coarse Particle - for Wind/Dust (PM10D) High Pollution Advisory for
the Rillito (near Marana) area for Wedndesday.

An episode of strong and gusty winds is forecast to generate
widespread blowing dust that may result in local PM-
10 concentrations that pose a health risk. Adverse health effects
increase as air quality deteriorates.

Coarse particulate matter - also known as PM-10 - is an air
contaminant that can aggravate heart and lung disease conditions,
especially in older adults, children, and those with asthma. A
decrease in physical activity is recommended.

Consolidate your travel, stabilize loose soils, slow down or avoid
travel on dirt roads, reduce or eliminate fireplace use, and avoid
using gas-powered lawn equipment.

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

...PRECAUTIONARY/PREPAREDNESS ACTIONS...

AIR QUALITY ALERT DUE TO HARMFUL PARTICLE POLLUTION LEVELS FROM WINDBLOWN DUST

Riverside County, CA San Bernardino County, CA Orange County, CA

* WHAT...The South Coast AQMD has issued an air quality alert due to
harmful levels of particle pollution from windblown dust. Visit
https://www.aqmd.gov/alertinfo to check current and forecasted air
quality levels.

* WHERE...In parts of the Inland Empire, Orange County, and South
Coastal LA County. Levels of particle pollution can vary by time
and location depending on emissions and local weather conditions.

* WHEN...Until 11 PM Wednesday.

* IMPACTS... Particle pollution can get deep into the lungs and cause
serious health problems such as asthma attacks, heart and lung
disease symptoms, and increased risk of lung infections. Everyone
can be affected, but sensitive groups such as people with lung or
heart disease, older adults, people who are pregnant, children, and
those who spend a lot of time outdoors are at greater risk.

...PRECAUTIONARY/PREPAREDNESS ACTIONS...

To protect your health, check air quality levels and act as needed:

* When Air Quality Index (AQI) levels are "Unhealthy for
Sensitive Groups" (orange), sensitive groups as specified
above should limit extended or intense outdoor activity.
* When AQI is "Unhealthy" (red), everyone may experience health
impacts. Sensitive groups should avoid extended time outdoors.
* When AQI is "Very Unhealthy" (purple), sensitive groups should
avoid all outdoor physical activity. Everyone else should
avoid extended or intense outdoor activity.
* When AQI is "Hazardous" (maroon), everyone should avoid all
outdoor physical activity.

* ADDITIONAL DETAILS...

To help keep indoor air clean when air quality is poor:

* Keep windows and doors closed
* Run your air conditioner and/or an air purifier
* Do not use whole house fans or swamp coolers that bring in
outside air if you have other methods to stay cool
* Avoid other sources of pollution such as fireplaces, candles,
incense, grilling, and gasoline-powered lawn and garden
equipment

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

AIR QUALITY ALERT IN EFFECT UNTIL 11 PM PST WEDNESDAY DUE TO HARMFUL PARTICLE POLLUTION LEVELS FROM WINDBLOWN DUST

Los Angeles County, CA

* WHAT..The South Coast AQMD has issued an air quality alert due to
harmful levels of particle pollution from windblown dust. Visit
https://www.aqmd.gov/alertinfo to check current and forecasted air
quality levels.

* WHERE...Southern Coastal Los Angeles County. Levels of particle
pollution can vary by time and location depending on emissions and
local weather conditions.

* WHEN...Until 11 PM Wednesday.

* IMPACTS...Particle pollution can get deep into the lungs and cause
serious health problems such as asthma attacks, heart and lung
disease symptoms, and increased risk of lung infections. Everyone
can be affected, but sensitive groups such as people with lung or
heart disease, older adults, people who are pregnant, children, and
those who spend a lot of time outdoors are at greater risk.

...PRECAUTIONARY/PREPAREDNESS ACTIONS...

To protect your health, check air quality levels and act as needed:

* When Air Quality Index (AQI) levels are Unhealthy for
Sensitive Groups (orange), sensitive groups as specified
above should limit extended or intense outdoor activity.
* When AQI is Unhealthy (red), everyone may experience health
impacts. Sensitive groups should avoid extended time outdoors.
* When AQI is Very Unhealthy (purple), sensitive groups should
avoid all outdoor physical activity. Everyone else should
avoid extended or intense outdoor activity.
* When AQI is Hazardous (maroon), everyone should avoid all
outdoor physical activity.

* ADDITIONAL DETAILS...

To help keep indoor air clean when air quality is poor:

* Keep windows and doors closed
* Run your air conditioner and/or an air purifier
* Do not use whole house fans or swamp coolers that bring in
outside air if you have other methods to stay cool
* Avoid other sources of pollution such as fireplaces, candles,
incense, grilling, and gasoline-powered lawn and garden
equipment

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

AIR QUALITY ALERT IN EFFECT UNTIL 10 AM PST THURSDAY

Deschutes County, OR

Oregon Department of Environmental Quality has issued an Air Quality
Advisory until 10 AM PST Thursday.

For the Air Quality Advisory, stagnant air conditions will trap
smoke and other air pollutants near the ground where people breathe.

Check with your local health or air agency for current restrictions
on woodstove use. There are often exceptions for those who use wood
exclusively to heat their homes and those with limited income.

People can take the following precautions to protect their health:

* Follow local burn restrictions to prevent deteriorating air
quality.
* Avoid strenuous outdoor activity in smoky conditions.
* People with heart or lung problems and young children are
especially vulnerable. These people should stay indoors while
smoke levels are high.
* Use certified High Efficiency Particulate Air (HEPA) filters in
indoor heating ventilation, cooling, and air purification systems.
* Avoid using wood-burning stoves and other sources of indoor smoke
if possible.

For additional information...please visit the Web site at
http://www.oregon.gov/DEQ

...PRECAUTIONARY/PREPAREDNESS ACTIONS...