The air quality index (AQI) for Everett was recently recorded as 162 micrograms/m3 for particulate matter smaller than 2.5 microns (PM2.5).  That’s pretty unhealthy.  Choose a space you occupy regularly (room, car, etc.) and measure the length, width, and height of the space.  If that’s a challenge, just use 10.0 ft by 10.0 ft by 12.0 ft as your dimensions.  If the air in your space had the same AQI as for Everett, how many grams of particulate matter are present?

Solid Waste Engineering
3rd Edition
ISBN:9781305635203
Author:Worrell, William A.
Publisher:Worrell, William A.
Chapter5: Separation Processes
Section: Chapter Questions
Problem 5.22P
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The air quality index (AQI) for Everett was recently recorded as 162 micrograms/m3 for particulate matter smaller than 2.5 microns (PM2.5).  That’s pretty unhealthy.  Choose a space you occupy regularly (room, car, etc.) and measure the length, width, and height of the space.  If that’s a challenge, just use 10.0 ft by 10.0 ft by 12.0 ft as your dimensions.  If the air in your space had the same AQI as for Everett, how many grams of particulate matter are present? 

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