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SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT
Oct. 23, 2007
Smoke and ash from numerous wildfires along with dust
raised by strong winds continue to create unhealthful air
quality throughout much of the Southland again today. Air
quality officials are advising all residents, and particularly
school officials, to curtail outdoor activities if they can see
or smell smoke or see falling ash.
Concentrations of fine particulate matter known as PM10 are at
unhealthy levels in numerous areas directly impacted by smoke as
well as high-wind areas in San Bernardino, Riverside, Orange,
and Los Angeles counties.
In areas with unhealthy air quality, everyone should discontinue
prolonged, vigorous outdoor exercise lasting longer than one
hour. Examples of the kinds of outdoor activities that should be
avoided are calisthenics, basketball, running, soccer, football,
tennis, swimming laps, and water polo. Susceptible persons, such
as those with heart or lung disease, should avoid outdoor
activity entirely.
The strong Santa Ana condition that is bringing gusty winds from
the northeast through and below the Southland’s passes and
canyons is expected to continue through today, decreasing on
Wednesday.
For more tips on avoiding health impacts from the smoke, see
http://www.aqmd.gov/pubinfo/factsheets.htm on AQMD’s
website.
AQMD is the air pollution control agency for Orange County and
major portions of Los Angeles, San Bernardino and Riverside
counties.
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