To determine the PM2.5 concentration in a classroom a researcher sampled the air over 24 hours. She
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To determine the PM2.5 concentration in a classroom a researcher sampled the air over 24 hours. She collected all the airborne particles in a total sample of 14.4 m3 of air. Then she measured the total particle mass in different particle size (diameter) ranges. Her results are shown in this table:
(3 point) What was the PM2.5 concentration in the classroom?
(2 point) Would you say this is a low concentration or a high concentration of PM2.5? Why?
Related Book For
Business Statistics For Contemporary Decision Making
ISBN: 978-1118749647
8th edition
Authors: Black Ken
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