chemiluminescence(nitrogen oxides), fluorescence(carbon monoxide), whereas semiautonomous monitoring for Vocs may be conducted by GC. For PM, aerosol, recently developed instrumentation
permits automated near-real time monitoring of ambient levels without recourse to time-integrated filter sampling and weighing procedures. The methods described are reliable most ambient atmospheric conditions, and have been accepted as reference techniques for the various pollutant species, but they all have limitations, for example, detection limits integration times, potential interferants, or other issues An understanding of the principles behind each technique employed is necessary to appreciate the quality of the measurements made, and to permit an informed assessment of the reliability of the reported pollutant concentration data.
chemiluminescence(nitrogen oxides), fluorescence(carbon monoxide), whereas semiautonomous monitoring for Vocs may be conducted by GC. For PM, aerosol, recently developed instrumentationpermits automated near-real time monitoring of ambient levels without recourse to time-integrated filter sampling and weighing procedures. The methods described are reliable most ambient atmospheric conditions, and have been accepted as reference techniques for the various pollutant species, but they all have limitations, for example, detection limits integration times, potential interferants, or other issues An understanding of the principles behind each technique employed is necessary to appreciate the quality of the measurements made, and to permit an informed assessment of the reliability of the reported pollutant concentration data.
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