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

<table>The relationship
between the expected 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="M63" 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">
<g transform="matrix(1.25,0,0,-1.25,0,10.7375)">
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<tspan style="font-size: 12.50px; " x="0" y="0">𝑏</tspan>
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</svg> between 0 (top line) and 1 (bottom line), in
increments of 0.1.</table>

Journal of Analytical Methods in Chemistry

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Figure 2

Figure 2: On the Optimum Sampling Time for the Measurement of Pollutants in Ambient Air 