Sea salt aerosol consisted mainly of coarse particles, ammonium nitrate is mainly found in the largest size fraction. Even without a detailed chemi- cal trace elements analysis, precise PM source apportionment was accomplished. 1. INTRODUCTION Source apportionment of airborne particulate matter with an...
Airborne particles can absorb practically any air contaminant. This capability of particulate matter (PM), due to its physicochemical properties, makes PM a great threat to human health, especially in big cities (Molina and Molina2004; Lee and Lee2008; Kong et al.2012). The dependence between ...
Cloud condensation nuclei (CCN) are the subset of aerosol particles able to form cloud droplets. They influence cloud microstructure and precipitation processes, which in turn affect the radiative properties of clouds, atmospheric circulation and thermodynamics, as well as radiative budgets1. This has ...
Cloud condensation nuclei (CCN) number concentrations alongside with submicrometer particle number size distributions and particle chemical composition have been measured at atmospheric observatories of the Aerosols, Clouds, and Trace gases Research Infr
Collocated long-term observations of CCN activity, particle number size distribution and chemical composition are sparse, especially in the vertical dimension8,11,12. To evaluate models' performances against measurements in order to improve climate projections, observationally derived long-term regionally ...
DPIs enable delivering high doses to the airways compared to other inhalation devices [8]. The aerosol performance of the particles is influenced by physicochemical properties such as particle size distribution, particle shape, surface roughness, interparticle force, and solid state, which determines ...
0.1 tended to make up a higher proportion of PM10 when particle emissions were high. On the other hand, Figure 6b shows PM0.1 made up a much smaller proportion of the PM10 mass due to having very small particle volumes, at 1–8%, while PM0.1–1...
The variability in the drop size distribution, which is a result of the microphysical processes of rainfall, is an indicator of environmental characteristics such as cloud-scale processes, vertical motion of air, and the liquid water production of the cloud [8]. The strong upward flow in the ...