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Step-by-Step Calculation of PM10 Concentration

Learn how to calculate PM10 concentration by measuring particulate weight, flow rate, air volume, and converting units for accurate reporting. Understand National Ambient Air Quality Standards.

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Step-by-Step Calculation of PM10 Concentration

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  1. Introduction to Air QualityATCEMNovember 6, 2012Pat EllsworthInstitute for Tribal Environmental Professionals

  2. A CUBIC METER

  3. Step-by-Step Calculation of PM10 Concentration 1. Calculate particulate weight (in grams) as follows: final weight of dry filter - initial weight of dry filter = particulate weight __________ grams - __________ grams = __________ grams 2. Calculate total time sampler was running (in minutes):  __________ hours run x 60 minutes = __________ minutes 1 hour 3. Calculate average flow rate for the sampling period: initial flow meter rate + final flow meter rate = __________liters/min 2 4. Calculate volume of air sampled (in liters):   average flow rate x time = volume sampled _______ liters x _______ minutes = __________ liters 1 minute

  4. Step-by-Step Calculation of PM10 Concentration (continued)5. Convert particulate weight from grams to micrograms: __________ grams x 1 x 106 µg = ___________ µg 1 1 gram 6. Convert volume of air sampled from liters to cubic meters: __________ liters x 1 m3 = ___________ m3 1 1 x 103 liters 7. Divide particulate weight (µg) by volume of air sampled (m3). Report average particulate concentration as: __________ µg/m3

  5. National Ambient Air Quality Standards

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