Aug. 15, 2008 at 9:07am

Smog expected to hit South Sound

The high-pressure system over western Washington pushing temperatures into the 90s this week may also create unhealthful levels of air pollution.

Stagnant weather and high temperatures bring rising air pollution levels, especially smog-producing ozone. Smog develops quickly as the sun bakes the ozone and volatile organic compounds found in emissions from gas and diesel-powered engines.  The strong inversion layer created by the high-pressure system keeps that pollution trapped on the ground where it poses significant health risks.

Because of concerns over degrading air quality, the Olympic Region Clean Air Agency is asking businesses to take a few simple steps to reduce their contribution to the air pollution problem: refuel vehicles in the cooler evening hours to minimize release of fuel vapors, don't use gasoline-powered gardening and yard-care equipment if possible and encourage personnel to carpool, walk or ride the bus to work, events and outings.

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