Monitoring of pollutions is such a system which allows to give an assessment and the pollution contents change. Direct measurement of incomplete combustion toxic products concentration of automobile fuel is the most importance for ecological assessment of atmospheric air pollution level in zone adjacent to the highway. The control for toxic components emissions into the atmosphere is particularly effective in the case of using gas sensors. This modern remote-sensing instruments of atmospheric pollution from mobile sources on the road allow to carry out monitoring of pollution in atmospheric air by toxic blowouts of automobile engines in close proximity to roadbed in real time regime