scholarly journals Assessment of atmospheric air pollution from traffic flows on road and street network in Omsk

2018 ◽  
Author(s):  
I.A. Teterina ◽  
E.V. Parsaev ◽  
A.S. Kashtalinskiy
Keyword(s):  
Air Pollution ◽  
Traffic Flows ◽  
Street Network ◽  
Atmospheric Air

scholarly journals Загрязнение воздуха твердыми частицами в пяти точках Владивостока (морской и автомобильный транспорт)

2020 ◽  
Vol 44 (3) ◽  
pp. 93-103
Author(s):  
Hong Hai Le
Keyword(s):  
Air Pollution ◽  
Solid Particles ◽  
Traffic Load ◽  
Particulate Emissions ◽  
Traffic Flows ◽  
Atmospheric Air ◽  
Exhaust Gases ◽  
The Impact ◽  
The City ◽  
Port Areas

Проведена оценка влияния автомобильных и судовых транспортных потоков на общую концентрацию взвешенных частиц (РМ) в атмосферном воздухе города Владивостока. В авторском эксперименте делались замеры в пяти контрольных точках, различных по орографическим характеристикам и уровню транспортной нагрузки. Было учтено загрязнение атмосферного воздуха твердыми частицами, которые содержатся в отработанных газах (ОГ) судовых энергетических установок (ССЭУ). Определено, что транспортные потоки – один из основных источников РМ в атмосферном воздухе Владивостока. Дифференцированная оценка уровня загрязнения РМ транспортными потоками позволила определить диапазон выбросов РМ от ОГ ССЭУ в атмосферу (в зависимости от орографических и климатических характеристик): 15–90%. В двух районах города, наиболее близких к портовым зонам, этот показатель оказался выше почти в 2 раза, чем в контрольной точке, наиболее удаленной от портовых зон. Ключевые слова: выбросы твердых частиц, водный транспорт, отработанные газы судовых установок, концентрация частиц в воздухе, воздух портового города, загрязнение воздуха частицами. The impact of automobile and maritime traffic flows on the total concentration of suspended particles (RM) in the atmospheric air of the city of Vladivostok was assessed. In the experiment, measurements were made at five control points with different orographic characteristics and levels of traffic load intensity. Also, air pollution with solid particles emitted by exhaust gases (exhaust) of marine power plants (SSEU) was taken into account. It is determined that traffic flows are one of the main sources of RM in the atmospheric air of the city of Vladivostok. A differentiated assessment of the level of PM pollution by traffic flows showed that depending on the geographical and climatic characteristics, overall contribution of PM from the OG SSEU to the urban atmosphere is in the range of 15–90%. At two spots closest to the port areas, this value was 70% and 80%. This indicator is almost two times higher than at the control point most remote from port areas. Keywords: particulate emissions, water transport, exhaust gases from ship installations, particle concentration in air, port city air, particle air pollution.

scholarly journals EVALUATION OF ATMOSPHERIC AIR POLLUTION BY TRAFFIC FLOWS ON ROAD AND STREET NETWORKS ON EXAMPLE OF OMSK

2018 ◽  
Vol 22 (8) ◽  
pp. 181-188 ◽  
Author(s):  
Evgeny Parsaev ◽  
◽  
Irina Teterina ◽  
Aleksandr Kashtalinskiy ◽  
◽  
...  
Keyword(s):  
Air Pollution ◽  
Traffic Flows ◽  
Atmospheric Air ◽  
Street Networks

Empirical Assessment and Modeling of Traffic-induced Air Pollution

2021 ◽  
pp. 036119812110237
Author(s):  
Zhongyang Lu ◽  
Andy H. F. Chow ◽  
Jacky Leung ◽  
Haydn Kwok ◽  
Sammy Cheung
Keyword(s):  
Air Pollution ◽  
Hong Kong ◽  
Road Network ◽  
Historical Data ◽  
Flow Speed ◽  
Traffic Flows ◽  
Real World Data ◽  
Empirical Assessment ◽  
Air Quality Monitoring Stations ◽  
Transport Management

Congestion and traffic-induced air pollution are associated with population growth and economic development. Compared with congestion, there are relatively few studies on modeling and assessment of traffic-induced pollution. This paper presents an empirical assessment and analysis of traffic-induced air pollution with real-world data collected from the Hong Kong Strategic Road Network. The study employed historical data of traffic flows, speeds, and emission of air pollutants collated by the Hong Kong Transport Department and Environmental Protection Department. This paper first reveals the correlation between traffic flows, speeds, and corresponding induced pollutants including nitrogen oxides (NO2, NOX) and carbon monoxide (CO). To gain further statistical insight, a regression analysis was conducted on the flow–speed–emission relationship at three air quality monitoring stations, which revealed the significance of various factors on this relationship. This study contributes to green transport management and urban sustainability.

Contamination of the intake air of internal combustion engines of motor vehicles

2021 ◽  
Vol 70 (2) ◽  
pp. 35-64
Author(s):  
Sebastian Dominik Dziubak
Keyword(s):  
Air Pollution ◽  
Internal Combustion Engines ◽  
Strong Dependence ◽  
Road Dust ◽  
Volcanic Eruptions ◽  
Internal Combustion ◽  
Solid Particles ◽  
Dust Concentration ◽  
Combustion Engines ◽  
Atmospheric Air

The paper presents the composition of atmospheric air as a mixture of gases that make up the solid and variable components, and the definitions of air pollutants are referenced. Gaseous and solid pollutants (dust) of the atmospheric air have been defined. Dusts were divided according to various criteria and their properties were given. Exemplary courses of immission of the fraction of solid particles are given, indicating a strong dependence of the immission on the seasons, days of the week and day and night. The sources and characteristics of artificial and natural pollutants in the atmospheric air are presented. It has been shown that the main sources of anthropogenic pollution in addition to industry and the automotive industry. Cars are a source of gaseous and particulate pollutants PM, and they also emit pollution from brake and clutch lining wear, as well as from tire and road wear. The main sources of natural air pollution were discussed, including volcanic eruptions, fires in landfills, forests, steppes and sand storms, as well as mineral dust (road dust) carried from the ground by vehicles. The properties of road dust are discussed: chemical and fractional composition, density, dust concentration in the air. It has been shown that the two basic components of the dust, silica and corundum, whose share in dust reaches 95%, also have the highest hardness, which may have a decisive influence on the wear of engine components. Various valuesof dust concentration in the air were presented depending on the type and condition of the ground and the conditions of use of vehicles. Keywords: mechanical engineering, internal combustion engines, air pollution sources, road dust

scholarly journals Air Pollution Estimation from Traffic Flows in Tehran Highways

2012 ◽  
Vol 7 (1) ◽  
pp. 01-06 ◽  
Author(s):  
KEIVAN SAEB ◽  
MARYAM MALEKZADEH ◽  
SAEED KARDAR
Keyword(s):  
Air Pollution ◽  
Traffic Flows
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