https://research.birmingham.ac.uk/portal/files/11961623/Estimation_of_the_Contribution_of_Road_Traffic_Emissions_V3_PostPrint.pdf

Estimation of the contribution of road traffic emissions to particulate matter concentrations from field measurements: A review

/pdf/the-role-of-the-physical-environment-in-the-hospital-of-the-223npaet81.pdf

The Role of the Physical Environment in the Hospital of the 21 st Century: A Once-in-a-Lifetime Opportunity

Ambient nano and ultrafine particles from motor vehicle emissions: Characteristics, ambient processing and implications on human exposure

http://web.as.uky.edu/Biology/faculty/cooper/Epigenetics/Ultrafine%20particles%20in%20cities.pdf

Ultrafine particles in cities

Nanoparticle emissions on Minnesota highways

Differences in airborne particle and gaseous concentrations in urban air between weekdays and weekends

The modality of particle size distributions of environmental aerosols

The emission factors of a bus fleet consisting of approximately 300 diesel-powered buses were measured in a tunnel study under well-controlled conditions during a 2-d monitoring campaign in Brisbane. Particle number and mass concentration levels of submicrometer particles and PM2.5 were monitored by SMPS and DustTrak instruments at the tunnel's entrance and exit, respectively. Correlation between DustTrak and TEOM response to diesel emissions was assessed, and the DustTrak results were recalculated into TEOM equivalent data. The mean value of the number and mass emission factors was (3.11+/-2.41) x 10(14) particles km(-1) for submicrometer particles and 583+/-451 mg km(-1) for PM2.5 (DustTrak), respectively. TEOM PM2.5 equivalent emission factor was 267+/-207 mg km(-1). The results are in good agreement with the emission factors determined from steady-state dynamometer testing of 12 buses from the same Brisbane City bus fleet. The results indicate that when carefully designed, both approaches, the dynamometer and on-road studies, can provide comparable results, applicable for the assessment of the effect of traffic emissions on airborne particle pollution. A brief overview of emission factors determined from other on-road and dynamometer studies reported in the literature as well as with the regulatory values used for the vehicle emission inventory assessment is presented and compared with the results obtained in this study.

/pdf/diesel-bus-emissions-measured-in-a-tunnel-study-osi4hlv6zh.pdf

Diesel bus emissions measured in a tunnel study

A model for determination of motor vehicle emission factors from on-road measurements with a focus on submicrometer particles

The effect of filtration and ventilation on reduction of submicrometer particle concentration indoors was investigated in an office building. The air-handling system consisting of dry media filters and an air-conditioning unit, reduced particle concentration levels by 34%. The characteristics of indoor airborne particles were dominated by, and followed the pattern of, outdoor air, with vehicle combustion aerosols as the main pollutant. The ratio indoor/outdoor particle concentration varied between 14 and 26% for different sub-zones. The presence of significant source of particles indoors was not observed. A simple mathematical model predicting evolution of particles indoors is presented. The model, based on a particle number balance equation, was validated with experimental data and showed very good agreement between predicted and measured parameters.

Milan Jamriska

Papers

Differences in airborne particle and gaseous concentrations in urban air between weekdays and weekends

The modality of particle size distributions of environmental aerosols

Diesel bus emissions measured in a tunnel study

A model for determination of motor vehicle emission factors from on-road measurements with a focus on submicrometer particles

Effect of ventilation and filtration on submicrometer particles in an indoor environment.