10 Questions
What was the tare weight of the fresh filter?
0.1400 g
What is the measured change in filter weight?
0.5 mg
What is the average PM2.5 concentration in the air drawn through the sampler?
21 µg/m³
What is the purpose of EPA standard methods for air pollutants?
To define the pollutant
What is the formula to calculate the pollutant molar flow rate?
Pollutant molar flow rate = (gas flow rate) x (pollutant concentration in gas)
When is averaging necessary in determining pollutant flow rate?
When the stack velocity and concentration are different at every point and time
What is the importance of isokinetic sampling in stack sampling for particulates?
To maintain isokinetic flow into the sampling probe
Why is high-quality weighing and sample humidity control needed?
To ensure accurate measurement of the sample weight
What is the gross weight of the filter dried to the same humidity as the fresh filter?
0.1405 g
What is the purpose of EPA standard methods?
To define the pollutant
This quiz covers the types of measurements used to monitor air pollution, including ambient and source measurements. Learn why these measurements are necessary and their importance in regulating emissions. Test your knowledge on air pollution control!
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