AQ Advisory In Effect Until Friday Morning
By 250 News
Prince George, B.C.- The Air quality advisory remains in effect until at least 9:30 tomorrow morning.
Based on the air quality data, the high levels in the past 24 hours were mainly due to combustion emissions (smoke) and some contribution from road dust. Particulate levels are expected to be lower overnight, but there is a slight possibility of a few hours of elevated levels this evening mainly due to dust.
The 24 hour PM2.5 rolling average was 31 µg/m3 at the Plaza 400 downtown site at 9:00 am and 19 µg/m3 at College Heights. The 24 hour PM10 rolling average was 61 µg/m3 at the Plaza 400 downtown, 58 µg/m3 at BCR and 43 µg/m3 at College Heights. This Air Quality Advisory is expected to be in effect until tomorrow morning, with an update to be provided tomorrow morning at 9:30 am.
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Posted by: NMG on February 19 2009 5:30 PM