Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Personal exposure to particulate air pollution in transport microenvironments
AbstractPersonal measurements of exposure to particulate air pollution (PM10, PM2.5, PM1) were simultaneously made during walking and in-car journeys on two suburban routes in Northampton, UK, during the winter of 1999/2000. Comparisons were made between concentrations found in each transport mode by particle fraction, between different particle fractions by transport mode, and between transport microenvironments and a fixed-site monitor located within the study area. High levels of correlation were seen between walking and in-car concentrations for each of the particle fractions (PM10: r2=0.82; PM2.5: r2=0.98; PM1: r2=0.99). On an average, PM10 concentrations were 16% higher inside the car than for the walker, but there were no difference in average PM2.5 and PM1 concentrations between the two modes. High PM2.5:PM10 ratios (0.6–0.73) were found to be associated with elevated sulphate levels. The PM2.5:PM10 and PM1:PM2.5 ratios were shown to be similar between walking and in-car concentrations. Concentrations of PM10 were found to be more closely related between transport mode than either mode was with concentrations recorded at the fixed-site (roadside) monitor. The fixed-site monitor was shown to be a poor marker for PM10 concentrations recorded during walking and in-car on a route over 1km away.
Personal exposure to particulate air pollution in transport microenvironments
AbstractPersonal measurements of exposure to particulate air pollution (PM10, PM2.5, PM1) were simultaneously made during walking and in-car journeys on two suburban routes in Northampton, UK, during the winter of 1999/2000. Comparisons were made between concentrations found in each transport mode by particle fraction, between different particle fractions by transport mode, and between transport microenvironments and a fixed-site monitor located within the study area. High levels of correlation were seen between walking and in-car concentrations for each of the particle fractions (PM10: r2=0.82; PM2.5: r2=0.98; PM1: r2=0.99). On an average, PM10 concentrations were 16% higher inside the car than for the walker, but there were no difference in average PM2.5 and PM1 concentrations between the two modes. High PM2.5:PM10 ratios (0.6–0.73) were found to be associated with elevated sulphate levels. The PM2.5:PM10 and PM1:PM2.5 ratios were shown to be similar between walking and in-car concentrations. Concentrations of PM10 were found to be more closely related between transport mode than either mode was with concentrations recorded at the fixed-site (roadside) monitor. The fixed-site monitor was shown to be a poor marker for PM10 concentrations recorded during walking and in-car on a route over 1km away.
Personal exposure to particulate air pollution in transport microenvironments
Gulliver, J. (Autor:in) / Briggs, D.J. (Autor:in)
Atmospheric Environment ; 38 ; 1-8
15.09.2003
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch