GK
UNITS DEVICES DIMENSIONS AND MEASUREMENTS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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dB
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DU
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PPB
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PPM
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Detailed explanation-1: -The Dobson Unit is a way to describe how much ozone there would be in the column if it were all squeezed into a single layer. The average amount of ozone in the atmosphere is roughly 300 Dobson Units, equivalent to a layer 3 millimeters (0.12 inches) thick-the height of 2 pennies stacked together.
Detailed explanation-2: -Measurement unit for determining the total amount of ozone present in a vertical column of air above the surface of the earth. The ozone in a layer of ozone at atmospheric pressure of 1013 hPa and temperature of 298 K which measures 1 mm in thickness and is equivalent to 100 Dobson units.
Detailed explanation-3: -A Dobson unit (DU) is the unit of measurement of ozone in a column of air from the ground to the top of the atmosphere.