… particles in urban air varies over four orders of magnitude (from 0.001 μm to 10 μm in diameter).
In many cities only particle mass concentrations (PM10, ie particles <… concentrations and …

… Particle number concentration data are reported from a total of eight urban site locations in
… Hourly particle number concentrations are generally only weakly correlated to NO x and PM …

… particle number concentration at two urban … urban atmosphere where particle number
concentrations are normally maintained at a very high level through primary emissions of particles …

… Therefore, we expected the particle number concentration … the particle concentration and
their transformation in urban-air … an urban environment, we measured particle number size …

… to the lower number of spirometric measurements. … particle number and size distributions
in urban air in addition to mass. Key words: air pollution, asthma, FVC, FEV1, particles, particle …

… The results of this study show that different processes contribute significantly to the
ultrafine particle number concentration in urban air. In order to assess these inputs, the daily …

… The twoyear average particle number concentration between November 2004 and November
2006 was 12 200 cm−3, ie similar to previous observations in other European cities. A …

… (UFP; diameter < 0.1 μm) represent a growing global health concern in urban environments
… particle number concentrations (PNC) despite being a minor part of total particle mass. The …

… on the differences in particle number concentration between … particle concentrations in
urban air. This formed the main objective of this study, which was conducted in the subtropical city …

… of both particle number and mass in urban air. However, … ultrafine particle concentration and
size distribution in urban air… 3.5×10 4 particle cm −3 , and total particle number concentration …