|January 16, 2014
The South Coast Air Quality Management District has issued a smoke
advisory today for portions of Los Angeles County. Air quality may reach the
Unhealthy range or higher in these areas due to the Colby Fire.
All individuals are urged to exercise caution and avoid unnecessary outdoor
activities in any area directly impacted by smoke. This includes areas
where residents can see or smell smoke.
The Colby Fire, burning in the Angeles National Forest above Glendora, is
producing a large amount of smoke. Areas directly impacted by smoke
and ash may experience air quality in the Unhealthy range or higher.
Depending on fire and weather conditions, smoke impacts and Unhealthy air
quality are most likely to occur in portions of the east and south San
Gabriel Valley areas and the Pomona/Walnut Valley area.
Smoke may also impact downwind areas including southeast and south central
Los Angeles County and the south and southwest coastal areas of Los Angeles
County, but air quality is expected to remain in the Unhealthy for Sensitive
Groups range in these areas.
In any area impacted by smoke:
Everyone should avoid any vigorous outdoor or indoor exertion; people with
respiratory or heart disease, the elderly, and children should remain
indoors. Keep windows and doors closed or seek alternate shelter.
Run your air conditioner if you have one. Do not use a swamp cooler or
whole-house fan to prevent bringing additional smoke inside. To avoid
worsening the health effects of wildfire smoke, don’t use indoor or outdoor
wood-burning appliances, including fireplaces.
For anyone not able to avoid a smoky area, a special N95 or P100 respirator
mask worn properly may help protect against the fine particles in smoke.
Paper or surgical masks do not protect the wearer from smoke. To learn
more on how to properly wear a special respirator mask and help protect from
wildfire smoke, go to
To subscribe to air quality alerts, advisories and forecasts by e-mail, go
To view current air quality conditions by region in an interactive map, see
For more tips on avoiding health impacts from smoke, see
http://www.aqmd.gov/ej/CAC/wildfire_safety_tips.htm on SCAQMD’s website.
SCAQMD is the air pollution control agency for Orange County and major
portions of Los Angeles, San Bernardino and Riverside counties.