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8552711 
Journal Article 
Forecast of extreme air pollution by water and road transport in the zone of the cable-stayed bridges of St. Petersburg and Vladivostok 
Lozhkin, VN; Lozhkina, OV; Dobromirov, VN 
2017 
St. Petersburg State University of Architecture and Civil Engineering 
2017 
3 
133-145 
Russian 
Present paper describes the investigation of dangerous air pollution by the exhaust gases of vehicles and vessels in the areas of bridges. The excess of standard limit values of pollutants concentrations at rush hours at adverse meteorological conditions is also analyzed. Approximations of the differential equation of atmospheric diffusion, data on the climate, intensity of vessels and (or) vehicles traffic, emissions of pollutants by vessels and vehicles, parameters of the motorway, the fairway of vessels are examined. The numerical investigations are realized using certified software and GIS applications. Estimates for CO, NO2, SO2, formaldehyde, benzo(α)pyrene, soot, hydrocarbons are given. The adequacy of the model is confirmed by instrumental measurements of stationary and mobile monitoring stations. New data of extreme air pollution by vehicles in the water area the «Golden Bridge» in Vladivostok and the impact of water vessels in the air pollution on the Big Obukhov Bridge in St. Petersburg have been obtained. The maps of air pollution with priority pollutants, analysis of results, conclusions are also presented. Obviously, there is a need to equip the water transport of St. Petersburg with engines corresponding to emission standards Tier – 3, 4. The methodology may be recommended for the environmental calculation assessment of existing and planned motorway bridges. © 2017, St. Petersburg State University of Architecture and Civil Engineering. All rights reserved. 
Motor transport; Numerical investigations; Pollutants emissions; River vessels