Atmospheric dispersion reporting mechanisms

In order to give an overview of the great capability of the technique some data, relative to samples collected in Greenland snow, are reported in Table 3.5. The different seasonal mechanism of atmospheric transport from remote continents to the Greenland ice sheet accounts for the wide dispersion of the concentration... 

The water dispersions of PVAc were prepared under nitrogen atmosphere using a semi-batch emulsion polymerization technique, in a four-neck kettle equipped with a mechanical stirrer, an inlet for feeding streams and a reflux condenser. The reagent amounts, the reaction conditions and the yields for each preparation are reported in Table 5. Solids content, pH and viscosity were measured and reported in Table 5. 

Dusts resuspended in localized atmospheres reflect both the distribution of lead species and particulate sizes in the dusts or soils serving as the source and the main mechanisms producing the resuspension. Street dusts have a bimodal distribution, the fine particle sizes arising from the tailpipes directly and the coarse materials from such mechanisms as smaller particle distribution. Al-Chalabi and Hawker (1997) reported that with increasing resuspension, the lead levels decreased, consistent with either coalescing small and coarser particles or increasing dispersion from the source. Similarly, Abu-Allaban et al. (2003) reported that road dust had most of its lead content in the coarse fraction. 

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