Air Quality

Why this is important: All particles found in the air, such as dust, dirt, soot, smoke, and liquid droplets are particulate matter. Exposure to particulate matter, especially PM2.5, has been linked to causing or worsening lung (including asthma) and cardiovascular disease (heart disease and stroke). People with these diseases, adults age 65 and older, and infants and children are more likely to be affected by breathing PM 2.5, especially as levels rise.

Definition: Percent of days tested where the average for 24-hour particulate matter (PM2.5) concentrations were above the “Good” air quality index level. PM2.5 consists of particles less than 2.5 micrometers in diameter. The air quality index level of “Good” tops at 9 µg/m3of PM2.5.

Data Source: State of Washington, Department of Ecology, Washington’s Air Monitoring Network. Presentation of data by Spokane Regional Health District, Data Center.
One monitor was used for this indicator and may not be representative of the entire county. The monitor used was at Monroe St in Spokane. 



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