traffic pollution Articles

  • Traffic pollution modelling in a complex urban street

    This study explores for the first time, the applicability of the Danish Operational Street Pollution Model (OSPM) in the city of Buenos Aires where street canyons are very irregular. The model is applied in an irregular and asymmetric street canyon of a five–lane avenue near a street intersection. Urban background concentrations estimated by the DAUMOD model are considered. Meteorological ...


    By Inderscience Publishers

  • Modelling of air pollution from road traffic

    This paper presents the basic principles of the method of calculating air pollution from road traffic in an urban built-up area. The algorithm of the method is based on the numerical integration of stationary two-dimensional partial differential equations of turbulent diffusion, with boundary conditions for the street canyons. The method consists of two modules: KALIB and STREETS, which calculate ...


    By Inderscience Publishers

  • Measuring Road Traffic Noise

    As part of an overall measurement programme to monitor road traffic noise in Århus (Denmarks second largest city), the Local Authority set up a noise measurement station on one of the major approach roads to Århus Harbour. This noise measurement station continually measures noise levels and can give a round-the-clock picture of noise level variations. Like most other districts, Århus Local ...

  • Using a calculation model to prevent serious air pollution from traffic

    The municipality of Utrecht has ten years of experience with exceeding the pollution limit values for NO2 and benzene, and offering advice for traffic plans on the effects of air pollution. Utrecht promotes prevention and integration of environmental issues in traffic plans and town planning. Utrecht has widened the use of the Dutch air pollution model for traffic (CAR) to prevent new exceeding ...


    By Inderscience Publishers

  • Mitigation measures to minimise traffic–generated noise pollution in Metropolitan Kuwait

    Forty representative roadway locations were randomly selected for monitoring traffic flow and noise levels. At local streets, equivalent noise level (Leq) ranged between 56 to 71; at collector streets traffic areas 70 to 83; at arterial roadway 75 to 86 and at freeway roadway areas 75 to 88 dBA during day and night time respectively. Consequently, the level of noise pollution from traffic even at ...


    By Inderscience Publishers

  • A comprehensive numerical simulation of traffic pollution in a street during one diurnal cycle

    A numerical simulation of the traffic pollutant transport diffusion within one busy street of Nantes city centre has been realised for a real-time duration of 24 hours, with a time step of 20 ms, in low wind, sunny conditions. It has been generated with the urban canopy model CHENSI, which includes sub-models of thermal buoyancy, traffic emission rates, car induced turbulence. A number of frames ...


    By Inderscience Publishers

  • ADMS-Urban: an air quality management system for traffic, domestic and industrial pollution

    The new version of the Atmospheric Dispersion Modelling System for urban environments, ADMS-Urban, is based on the same up-to-date physics as the ADMS model, outlined briefly here in Section 2. The basic model has been the subject of extensive validation studies: as part of this series of European Harmonisation Workshops; sponsored by HMIP (Her Majesty's Inspectorate of Pollution, now part of the ...


    By Inderscience Publishers

  • A quantitative approach to the traffic air quality problem: the traffic air quality index

    The Traffic Air Quality (TAQ) model is a simple tool to estimate traffic fine particulate emissions on roadways (g/km) and can be used for both real-time analysis and for localized conformity analysis (“hot-spot” analysis for nonattainment areas) as defined by 40 CFR 93.123. This paper is a follow-up to a study published earlier regarding the development of the TAQ model. This paper shows how ...

  • Air quality management - from traffic management to environmental traffic management

    Traffic management systems are commonly used to optimize traffic flow in urban areas, e.g. to prevent traffic congestion. However, the regulation of traffic flows can also be used to control traffic induced emissions and therefore affects air quality. To use a traffic management system as an instrument for the benefit of air quality, the application requires reliable information about the current ...


    By IVU Umwelt GmbH

  • The ‘ins and outs’ of air quality monitoring

    The National Institute for Health and Care Excellence (NICE) recently issued draft guidance on ‘Air pollution - outdoor air quality and health.’ In the following article Jim Mills, Managing Director of Air Monitors Ltd, explains why there will need to be more funding for monitoring if the mitigation measures mentioned in the guidance are to be implemented effectively. Jim also ...


    By Air Monitors Ltd.

  • Responses of the urban roadside trees to traffic environment

    Purpose: The study is understand the relation between urban roadside tree growth and the traffic environment and an improvement to the traffic environment by using urban roadside trees. Design/methodology/approach: Eight common urban roadside trees subjected to many pollutants from automobile emissions were selected for research. The comparatively pollution-free parks far from the traffic ...


    By Inderscience Publishers

  • Road traffic noise in downtown area of Tehran

    Noise pollution is by now worldwide recognized as a major problem for the quality of life in urban areas. Vehicular traffic is the most important source of the environmental noise pollution in these areas (Zennin et at., 2001; Suksaard et at., 1999; Arana and Garcia. 1 998. The increasing in the population and in the number of circulating vehicles has led to an increase in the noise pollution but ...


    By University of Tehran

  • Lisbon air quality: evaluating traffic hot-spots

    This paper presents an air quality study in an urban traffic hot-spot in Lisbon, Portugal, by comparing the atmospheric pollutant concentrations obtained by a numerical model with measured values. Results indicate that the mean variation of particle and gaseous concentrations followed the traffic flow rate, evidencing the occurrence of PM10 concentrations greater than the respective air quality ...


    By Inderscience Publishers

  • Vehicle wake factor for heterogeneous traffic in urban environments

    Vehicles' 'wakes' are generated as a result of vehicular movements. They are one of the dominant factors in dispersing the pollutants in 'calm' meteorological conditions when wind velocity is ...


    By Inderscience Publishers

  • Daily variation of traffic emissions in Athens, Greece

    In this work, the emissions of four pollutants (CO, Benzene, NOx and PM10) during a working day were estimated and presented in main avenues of Athens, Greece with the aid of the COPERT methodology. The data used as input to the COPERT III was collected through a measuring campaign every 15 min and lane for the time period 07.30-17.30 of a weekday. The results revealed the CO, Benzene, NOx and ...


    By Inderscience Publishers

  • Simple modelling approaches to assess the impact of traffic air pollution: Cordoba case study

    From 1991 to 1999, there were significant commitments to environmental protection in Argentina. During this period, several important cities of the country, such as Buenos Aires, Cordoba, Mendoza, Bahia Blanca, and Ushuaia, began air quality monitoring programmes. Among these cities, we have taken Cordoba as a case study because of the existence of a continuous monitoring campaign that collected ...


    By Inderscience Publishers

  • Traffic emission effects on ambient air pollution by PM2.5–related PAH in Upper Silesia, Poland

    The ambient concentration of particle–bound polycyclic aromatic hydrocarbons (PAHs) was investigated in two industrial towns in Upper Silesia, Poland. The 24 h samples of PM2.5 (particles with aerodynamic diameter ≤ 2.5 µm) were collected simultaneously at busy roads (or crossroads) and at an urban background site. Additionally, the samples were collected during the heaviest traffic density (rush ...


    By Inderscience Publishers

  • Modelling the meteorology and traffic pollutant dispersion in highly complex terrain: the ALPNAP Alpine Space Project

    An integrated methodology was applied, within the framework of the ALPNAP Project, to study the meteorology and traffic pollutant dispersion in highly complex topography, the Frejus Alpine transect area. Three episodes, characterised by strongly critical dispersive conditions, were considered in the year 2004. The atmospheric circulation and pollutant dispersion were simulated using RMS ...


    By Inderscience Publishers

  • Environmental Traffic Management with IMMISmt in Potsdam, Germany

    The main idea of the Environmental Traffic Management in Potsdam is to reduce peak pollutant concentrations by temporarily activating measures to influence the traffic during episodes of high concentration levels. IMMISmt, a software product of IVU Umwelt is used in Potsdam as an extension to the traffic management system to determine current concentrations in hot spots in near ...


    By IVU Umwelt GmbH

  • Children’s exposure to traffic-related pollution: assessment of CO exposure in a typical school day

    This paper evaluates the exposure of four children to carbon monoxide (CO) in two different classrooms during the time spent in school in a typical school day, using a numerical modelling approach. The study is focused on an area of 550 × 550 m 2 centred at a primary school of the city of Aveiro, in central Portugal, which is located close to a road with moderate traffic and has naturally ...


    By Inderscience Publishers

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you