The Puget Sound Clean Air Agency has been conducting a study of near-road pollution levels in the Chinatown/International District, centered on a new monitoring site at 10th and Weller. This graph shows the air quality of the neighborhood in February 2014. • Graph by Puget Sound Clean Air Agency
The Puget Sound Clean Air Agency has been conducting a study of near-road pollution levels in the Chinatown/International District, centered on a new monitoring site at 10th and Weller. This graph shows the air quality of the neighborhood in February 2014. • Graph by Puget Sound Clean Air Agency

Last month’s review

February was unusually warm and sunny, but with calm winds. As a result, the month had the second highest levels of air pollution since we started monitoring in the Chinatown-International District last June. February had 12 “moderate” days and 16 “good” days.

The main sources of air pollution in the neighborhood are cars and trucks driving on I-5 and I-90. Breathing high levels of this pollution can cause heart attacks, strokes, asthma attacks, and more.

Next few months

Now that spring is here, we should have plenty of wind and some of our cleanest air of the year.

Visit pscleanair.org for a daily air quality forecast.

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