Air Quality -- The Year In Review
By 250 News
Friday, December 23, 2005 12:16 PM

Industrial emissions collide with a high-pressure weather system above the City
The City of Prince George was under air quality advisories for a total of 17 days in 2005, setting a record not seen in the past decade.
According to Ministry of Water, Land, and Air Protection Meteorologist, Dennis Fudge, the longest stretch of poor air occurred between February 15th of this year and March 1st. Fudge says the high levels of fine particulate built up after an ice storm, "And the roads started drying up and we had a lot of road dust."
The good news is the next advisory wasn't issued until this past weekend, when a high-pressure ridge weather system was trapping emissions, believed to be mainly from industrial and combustion sources, above us.
Here's a summary of air quality advisories issued for the past 10 years (for more complete details on start/end times, etc., click here):
Duration (days)
2005 17
2004 9
2003 15
2002 11
2001 10
2000 6
1999 9
1998 13
1997 8
1996 6
1995 15
Fudge says it's difficult to determine a definite trend with the city's air quality -- it's more an up-and-down pattern. He says particulate levels seemed to be decreasing, then started rising again over the last few years, but have fallen off slightly since February.
The Meteorologist says two factors combine to impact the city's airshed. Fudge says weather-wise, "The finger-pointing is when there's a high-pressure ridge over the area. If it slows down or becomes stagnant over the area like it did (last week) then we know there's a good chance there'll be a build up of particulates."
As for the other side of the equation -- emissions -- Fudge says they tend to be more seasonally dependent. "We have the industrial emissions, that's kind of ongoing," he says, "Other than that, there's the road dust in the spring and land clear burning in the fall, along with forest fires in the summer."
Mayor Colin Kinsley announced in his inaugural speech earlier this month, he was striking a Task Force on Air Quality Improvement to be headed by UNBC President Dr. Charles Jago. So far, Fudge says he has not been contacted to be involved in that group.
Previous Story - Next Story
Return to Home