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382102 
Journal Article 
Clarification of the Predominant Emission Sources of Antimony in Airborne Particulate Matter and Estimation of Their Impacts on the Atmosphere 
Iijima, A 
2010 
1 
Bunseki Kagaku / Analysis Chemistry
ISSN: 0525-1931 
59 
2 
151-152 
Japanese 
WOS:000274973300008 
Because antimony (Sb) compounds possess useful applications, they have been widely used as functional materials. Consequently, many literatures report an extraordinary enrichment of Sb in environmental samples. By focusing on similarities in the elemental composition, particle size distribution, and microscopic images between the ambient APM and several potential Sources, we have investigated the predominant sources of Sb in airborne particulate matter (APM) in Japan. The distribution of the Sb concentration in size-classified ambient APM showed a bimodal profile in which peaks were found in fine (0.6 mu m) and coarse (4.0 mu m) fractions. Elemental ratios, particle sizes, and microscopic images observed in the coarse APM fractions were found to be in good agreement with those of brake abrasion dust. On the other hand, in the line APM fractions, fly ash originating from waste incineration was identified as being the most probable Source of Sb. A chemical mass balance analysis was performed to determine the effects of the emission sources of Sb, and it was revealed that waste fly ash and brake abrasion dust were the dominant Sources of Sb in the finer and coarser fractions of APM, respectively. This thesis provides important Cities for understanding the cycles and fates of Sb in the environment. 
multielement analysis; ICP-MS; single particle analysis; SEM-EDX; receptor model; waste fly ash; brake abrasion dust