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标题：Determination of 3,6-dinitrobenzo[e]pyrene in Surface Soil and Airborne Particles, and Its Possible Sources, Diesel Particles and Incinerator Dusts
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作者：Tomohiro Hasei ; Tetsushi Watanabe ; Osamu Endo 等
期刊名称：Journal of Health Science
印刷版ISSN：1344-9702
电子版ISSN：1347-5207
出版年度：2009
卷号：55
期号：4
页码：567-577
DOI：10.1248/jhs.55.567
出版社：The Pharmaceutical Society of Japan
摘要：3,6-Dinitrobenzo[ e ]pyrene (3,6-DNBeP) is an extremely strong bacterial mutagen, and was recently identified in highly mutagenic surface soil samples. In a previous study, a sensitive analytical method was developed using high-performance liquid chromatography (HPLC) and fluorescence detection. In this study, we analyzed 3,6-DNBeP in surface soil, airborne particles, diesel particles, and incinerator dusts using this analytical method to reveal the distribution of 3,6-DNBeP in the environment. 3,6-DNBeP was detected in all surface soil samples, and the mutagenic contribution ratio of 3,6-DNBeP to the mutagenicity of the soil extracts toward Salmonella ( S. ) typhimurium TA98 was 17.3% on average. A positive correlation was observed between the mutagenicity of surface soil and the amount of 3,6-DNBeP ( r =0.8653). 3,6-DNBeP was detected in airborne particles in the range of 19-76 fg/m³. The particle-size-distribution ratios of 3,6-DNBeP in <1.1, 1.1-2.0, 2.0-3.3, 3.3-7, and >7 μm of airborne particles were 13.1%, 13.8%, 37.0%, 19.1%, and 17.0%, respectively. 3,6-DNBeP was detected in diesel particles from general automobiles and industrial forklifts, and incinerator dusts. These results suggested that 3,6-DNBeP was a major mutagen in surface soil, and diesel engines and incinerators were possible sources of 3,6-DNBeP distributed in surface soil and air. This is the first report on the detection of 3,6-DNBeP in diesel particles and incinerator dusts.
关键词：3,6-dinitrobenzo[e]pyrene;particle size;diesel particle;incinerator dust;surface soil;airborne particle