THE MEASUREMENTS OF ATMOSPHERIC POLLUTANTS CONCENTRATION BY MEANS UV TRACE GAS-ANALIZER
A number of air pollutants concentration : СS <sub>2</sub>, NO <sub>2</sub>, O <sub>3</sub>, etc were trace measured with nonlaser gas-analyzer, operating in UV spectral region. The operation principle of the trace gas-analyzer is based on the method of differential optical absorption spectroscopy. The high pressure xenon lamp was used as an emission source. Minimally detected concentration is few ppb on pathlength 400 m with 2 min accumulation time. The results of the test measurements of pollutants in near South sq., Tomsk are presented.