From Deseret News archives:
Utah's air: Just how bad is it?
You've probably noticed.
It's so polluted out there that you have to floss the grit out of your teeth.
Airplanes have to build up extra speed to clunk through the atmosphere hanging over the valley.
The good news: It's not as bad as it used to be.
The Division of Environmental Quality reported earlier this month that our air is cleaner than it once was, based on annual averages.
Our "temporary" inversions are another matter. When it comes to 24-hour averages and winter inversions, we are way over the EPA's newly established limits. We have about four years to clean up or the federal government will send us to our room without any federal highway and transit funds.
The Great Inversion of '07 rages on. The gunk is hanging around the valley like a ring around a bathtub. If you want to see how bad it really is, drive up to Park City, look in your rear-view mirror and ask yourself this question:
Where do we flush this place?
First, some background: Air pollution is measured two ways: (1) Concentration levels; (2) Size of the particulate matter floating in the air.
That morning, Salt Lake's air measured 70 micrograms of PM 2.5 per cubic meter of air. "This would be high even for Los Angeles," says Brigham Young University professor Arden Pope. Clean air is 10 micrograms. By early Monday afternoon, the concentration of pollution reached 100.
"It's been climbing like a rocket," said Neal Olson, an environmental scientist for the state. "It's almost as bad as I've ever seen."
A red burn day is 35 micrograms per cubic meter of air for a 24-hour average. Salt Lake has reached the red-burn level 15 times in January, 12 in the past 17 days.
There were three red days in Salt Lake-Davis County last year, by comparison. The record was set with 23 days in 2004.
In the past month, pollution concentrations have climbed so high that Olson wonders if we won't be forced to go to a next level above red Purple. That's DEFCON 2 or 3 in air pollution talk.
The length of the inversion is approaching record levels; the amount of pollution, however, has improved.
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