Determinants of personal exposure to PM2.5, ultrafine particle counts, and CO in a transport microenvironment.

摘要: Short-term human exposure concentrations to PM2.5, ultrafine particle counts (particle range: 0.02−1 μm), and carbon monoxide (CO) were investigated at around a street canyon intersection in Central London, UK. During four week field campaign, groups of volunteers collected samples three timings (morning, lunch, afternoon), along two different routes (a heavily trafficked route backstreet route) via five modes transport (walking, cycling, bus, car, taxi). This was followed by an investigation into the determinants using regression technique which incorporated site-specific traffic counts, meteorological variables (wind speed temperature) mode used. The analyses explained 9, 62, 43% variability observed CO this study, respectively. statistically significant determinant personal cou...