On the Optimum Sampling Time for the Measurement of Pollutants in Ambient Air

<table>The relationship
between the change in the relative standard uncertainty of the average mass
concentration and the number of sampling periods, for various values of <svg height="10.7375" id="M84" style="vertical-align:-0.13794pt" version="1.1" viewbox="0 0 7.4749999 10.7375" width="7.4749999" xmlns="http://www.w3.org/2000/svg">
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Journal of Analytical Methods in Chemistry

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Figure 4

Figure 4: On the Optimum Sampling Time for the Measurement of Pollutants in Ambient Air 