The total aerosol mass concentration was dominated by the presence of coarse particles, and it ranged from ∼30 μg/m3 to ∼30,000 μg/m3.
The results show that total particle number concentration was dominated by traffic flow rate and wind speed and to a lesser degree by RH and TEMP.
When AOD retrieval is successful (i.e., cloud free, higher temperature, no snow/ice on the ground), the total variability of PM2.5 concentrations is dominated by its temporal component, and concentration levels tend to be spatially smooth.
Alkane concentrations were dominated by higher odd-chain n-alkanes at all sites, indicating terrestrial plant inputs.
Results indicate that indoor elemental carbon concentrations are dominated by indoor sources during biomass burning, and outdoor sources at all other times.
We found that global population-weighted PM2.5 concentrations were dominated by particulate organic mass (11.9 ± 7.3 μg/m(3)), secondary inorganic aerosol (11.1 ± 5.0 μg/m(3)), and mineral dust (11.1 ± 7.9 μg/m(3)).
Particle number concentrations were dominated by particles < 300 nm and particle surface area concentrations by particles in the range of 50 1,000 nm (Table 1).
We found that global population-weighted PM2.5 concentrations were dominated by particulate organic mass (11.9 ± 7.3 μg/m), secondary inorganic aerosol (11.1 ± 5.0 μg/m), and mineral dust (11.1 ± 7.9 μg/m).
Mobile monitoring of particle number concentration which is dominated by UFP was conducted with the Tufts Mobile Air Pollution Laboratory (TAPL), a converted recreational vehicle equipped with a condensation particle counter (TSI Model 3775).
+/− indicates concentration curve dominates (is dominated by) the Lorenz curve or concentration curve in one year or area and dominates (is dominated by) the other in another year or area.
