November
2006
Air Quality Summary
Air quality during
November
was in the "Good" category
for 21 days, and
in the "Moderate" category
for 9 days.
Precipitation was 9.73 inches
above normal levels in the Puget
Sound region, with SeaTac airport receiving a record setting 15.63 inches
of rainfall to break a record set in 1933. The airport average monthly temperature of 44.2° F
was 1.0 degrees
below normal for
November
with a maximum temperature of 60° F
on the 3rd and 6th.
A minimum temperature of 18° F
occurred on the 28th and 29th.
-
The highest PM2.5 value of 35 µg/m3 was in the
"Moderate" category (AQI of 89)
and was measured on Wednesday the 29th at the South Hill site in Puyallup.
-
The highest PM10 value of 50 µg/m3 was in the
"Good" category (AQI of 46)
and was measured on Wednesday the 1st at the Alexander Ave site in Tacoma.
-
The highest 8-hour average for carbon monoxide was 1.5 ppm, in the "Good" category (AQI of 17),
and occurred during the early evening hours of Wednesday the 1st at the 148th Ave NE site in Bellevue.
