What is ambient air quality?
Ambient air is the air in our immediate surroundings. Ambient air quality is measured near ground level and away from direct sources of pollution. Are the days when the air smells bad in Prince George the days when there is more likely to be an Air Quality Advisory in effect? A: You can have days when there is an odour in the air, but no air quality advisory. Air quality advisories are based on PM10 levels, so it is likely that contributors such as road dust and open burning may play a larger role in the advisory. On days when there is what’s called a “frontal trapping” – it could be raining or drizzling – environmental PM10s may be reduced but the odour may still be in the air. What is the difference between point and non-point source pollution? A: Point source pollution results from stationary emission sources. It is easier to monitor and manage these sources of pollution. Non-point source pollution is produced by a combination of various sources that are too small to measure individ
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