AQ Advisory Cancelled
By 250 News
Sunday, December 27, 2009 10:59 AM
Prince George, B.C.- The Air Quality Advisory for Prince George has been cancelled.
The provincial air quality objective for fine particles, PM2.5, is 25 micrograms per cubic metre, averaged over 24 hours. The 24 hour PM2.5 rolling average was 20 µg/m3 at the Plaza 400 downtown site at 10:00 am and 26 µg/m3 at College Heights.
The provincial air quality objective for fine particles, PM10, is 50 micrograms per cubic metre, averaged over 24 hours. The 24 hour PM10 rolling average was 30 µg/m3 at the Plaza 400 downtown, 50 µg/m3 at BCR and 39 µg/m3 at College Heights.
Based on the air quality data, the high levels were mainly due combustion emissions, including wood smoke (wood stoves) as well as emissions from industry and transportation sources such as automobiles, trucks and rail traffic.
Even though the 24 hour average for PM2.5 at College Heights still exceeds the provincial objective, hourly values are now low and are expected to remain lower for most of today. The 24 hour average is expected to drop below 25 µg/m3 within the next few hours.
Previous Story - Next Story
Return to Home
And if it wasn't for that rotten cabbage smell, nobody would know any different.