State of the Air Report Shows Ozone Levels Up
By 250 News
Friday, October 03, 2008 04:01 AM
Prince George, B.C.- According to the B.C. Lung Associations “State of the Air Report 2008” there is some good news, and some bad news on the air in Prince George.
The report shows Prince George is one of the communities which is seeing an increased level of ground level ozone and is among the communities with the highest levels of ambient pm2.5. However, the levels of sulphur dioxide are on a downward trend and there has been no significant change in the levels of Nitrogen Oxides.
The report shows there is still a serious problem with Pm2.5 in the Central Interior. The highest daily values of pm2.5 (as reflected by the Canada Wide Standard levels) were in Prince George and in Quesnel. The highest annual concentrations were in Grand Forks, Golden, Prince George and Quesnel.
The details of the changes in Prince George are in the annual reports for the past three years:
|
|
2007
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2006
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2005
|
|
Pm2.5(annual )
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6.5 ug/m3
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7 ug/m3
|
8
|
|
Nitrogen Oxides
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22 ug/m3
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26.5 ug/m3
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Not measured
|
|
Sulphur Dioxide
|
5.05ug/m3
|
13 ug/m3
|
13.5
|
|
Ozone (ground level)
|
20 ppb
|
19.5 ppb
|
18.5 ppb
|
Annual levels of ambient Pm2.5:
Annual Ambient levels of Sulphur Dioxide:
Annual Ambient levels of ozone:
Annual levels of ambient Nitrogen Oxides:
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Posted by: Green on October 3 2008 7:18 AM