[Evaluation of Bishkek air pollution with polyaromatic hydrocarbons]

The purpose of this study was to make a quantitative assessment and prediction of the degree of ambient air benzo(a)pyrene pollution in Bishkek and to develop environmental PAH reduction measures. Analysis of the data shows that the greatest ambient air benzo(a)pyrene pollution was observed in the central and northern parts of the town (up to 46 maximum allowable concentrations - MAC), the bedroom communities situated in the southern part of the town can be described as conditionally clean (up to 10.3 MAC). The main sources of pollution are motor transport and energy-fuel enterprises. Prediction analysis indicates a linear increase in annual rates. BaP accumulation and decomposition was also found to be periodic and, if appropriate measures are not undertaken, BaP concentrations might increase up to 80 MAC in a short time.