Approbation of express-method for benzo[a]pyrene extraction from soils in the technogenic emission zone territories

Abstract

The benzo[a]pyrene accumulation and migration regularities in chernozemic soils under the aerotechnogenic emission zone were revealed on the basis of long-term monitoring researches. A new method of subcritical water extraction has been developed for determination of benzo[a]pyrene from soils of the emissions zone of Novocherkassk Power Station one of the largest thermal power enterprises in Russian Federation. It is shown that the soils adjacent to a source of emission are polluted by benzo[a]pyrene at distance to 5 km. Trends in the accumulation of benzo[a]pyrene in soil zones of the thermal power plant influence have been researched over a 5-year period of monitoring observations. The assessment of soils pollution extent by benzo[a]pyrene is given.