Distribution of Atmospheric Fluorocarbons in the Urban Air over the Kitakyushu District, Japan
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概要
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The distributions of fluorocarbons (CCl<SUB>2</SUB>F<SUB>2</SUB> and CCL<SUB>3</SUB>F) in the urban air over the Kitakyushu district were investigated.<BR>Average concentrations were found to be 0.46 and 0.34 ppb at commercial and residential districts for CCl<SUB>2</SUB>F<SUB>2</SUB>, and, 0.20 and 0.16 ppb at commercial and residential districts for CCl<SUB>3</SUB>F, respectively. The average ratio of CCl<SUB>2</SUB>F<SUB>2</SUB>/CCl<SUB>3</SUB>F was 2.3 and 2.2 at commercial and residential districts, respectively. There was no significant difference between the ratios of CCl<SUB>2</SUB>F<SUB>2</SUB>/CCl<SUB>3</SUB>F of the two districts.<BR>Also, the diurnal variations of concentration of the fluorocarbons were investigated. Sometimes, high concentrations of CCl<SUB>2</SUB>F<SUB>2</SUB> and CCl<SUB>3</SUB>F were recorded, which were probably due to release of the propellant of aerosol products and/or temporary release of the refrigerant of containers.
- 社団法人 大気環境学会の論文
社団法人 大気環境学会 | 論文
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