Keywords:
Air pollution, Air purification, Air purity, Air quality, Atmosphere, Concentration, Definitions, Emission, Emission measurement, Exhaust gases, Fourier, Fourier analysis, Fourier-transformation, Gas analysis, Gas concentrations, Gases, Infrared spectrometry, Mass concentration, Measurement set-up, Measuring systems, Pollution of the air, Quality control, Quantity of gas, Sampling methods, Stationary, Testing, Waste air