Peroxidase activity as the parameter of detoxicational potential of wood plants in vehicle emissions zone

The estimation of detoxicational potential of Siberian mountain ash on peroxidase activity and parameter of vital condition in vehicle emission local zone is lead. It is established, that the existing level of mid-annual vehicle emissions of studied crossroads in Kemerovo city is not critical for plants growth to what the satis-factory parameter of Siberion mountain ash vital condition testifies, and increase of peroxidase activity (88- 147%) specifies on high detoxication potential of the given wood breed concerning vehicle emissions.