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Laser optoacoustic spectroscopy technique has been used to measure the absorption coefficients of eight gas pollutants at CO2 laser wavelengths between 9.2 μm and 10.8 μm. All measurements were performed with pollutant at a low pressure in the presence of 1 atm of nitrogen. For outdoor longoptical path monitoring of air pollution paier of lines (detection and reference line) have been selected.
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Jovičević et al. (1981) studied this question.
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