LaMotte Air Pollution Sampling & Measurement - Manual (Page 6)

Prior to any field trips, it is necessary to prepare a checklist of the
components required for conducting an air pollution study. An inventory
of the required chemical reagents should be compiled before taking the
unit into the field for testing. The battery capacity for the sampling
apparatus should be checked. A supply of reserve batteries might
prevent an interruption in the middle of a sampling period. Plan in
advance.
To record the results of air pollution investigations, one should include
such items as the following: meteorological data — prevailing winds,
temperature, atmospheric pressure, relative humidity; duration and time
of sampling; location of sampling site; sampling and test procedure;
and finally the concentration of the pollutant. Any observations which
might adversely affect the result should also be noted.
After compiling data from a particular investigation, check results from
previous surveys from your own or other schools, local health agencies,
or state and federal monitoring programs.
6 Air Pollution Sampling & Measurement