[ADEQ Forecasts] ADEQ Issues Air Pollution Health Watch for Wed., Aug. 13

forecasts@lists.azdeq.gov
Tue Aug 12 12:39:33 MST 2008


http://www.azdeq.gov/ensemble.pdf

For transportation alternatives:
http://www.valleymetro.org

Health message for Tuesday, August 12:   Unusually sensitive people
should consider reducing prolonged or heavy outdoor exertion.
 
Health message for Wednesday, August 13:  Unusually sensitive people
should consider reducing prolonged or heavy outdoor exertion. 

Synopsis and Discussion
AN OZONE HEALTH WATCH HAS BEEN ISSUED FOR WEDNESDAY AUGUST 13
Local ozone levels on Monday were at or below the mid-moderate range of
the Air Quality Index at the vast majority of monitoring sites.
However, one exceedance of the standard did occur at Queen Valley with a
near-miss at Apache Junction.  Afternoon westerly winds will continue to
send the metro ozone plume toward the east Valley where a risk of
near-to-unhealthy ozone levels will persist thru at least Thursday.  As
a result, an Ozone Health Watch has been issued for Wednesday as a
precaution for those with respiratory conditions such as asthma,
although an increase in summer monsoon-associated cloud cover may help
the situation by then.  Also, an upper level disturbance currently over
Baja may produce a surge of winds and moisture over the western deserts
tonight and Wednesday that would also help with ozone dispersion.
-Reith    

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