ニトロアレーンの分析法開発と大気内動態解析
スポンサーリンク
概要
- 論文の詳細を見る
Two HPLC methods for the determination of nitroarenes were developed. One allows the simultaneous determinations of four nitroarenes (1,3-, 1,6- and 1,8-dinitropyrenes and 1-nitropyrene) and ten polycyclic aromatic hydrocarbons (PAHs; fluoranthene, pyrene, benzo[a] anthracene, chrysene, benzo [ b] fluoranthene, benzo [k] fluoranthene, benzo [a] pyrene, dibenz [a,h] anthracene, benzo [ghi] perylene and indeno [1,2,3-cd] pyrene). The other can handle small amounts of nitroarenes, such as 2-nitrofiuoranthene, 2- and 4-nitropyrenes and 6-nitrochrysene. The Atmospheric behaviors of nitroarenes were analyzed by these analytical methods. The atmospheric concentrations of 1,3-, 1,6- and 1,8-dinitropyrenes and 1-nitropyrene in the downtown area of Kanazawa were higher between 6:00 and 20:00 and lower between 0:00 and 6:00. Large correlation coefficients (>0.8) between the nitroarene concentrations and traffic volume suggest that the main source of nitroarenes was vehicles. 4-Nitropyrene and 6-nitrochrysene were detected in diesel exhaust particulates, and their concentrations were higher from 10:00 to 18:00 and lower from 0:00 to 6:00. On the other hand, the concentrations of 2-nitrofluoranthene and 2-nitropyrene were highest from 16:00 to 18:00, suggesting that the two nitroarenes were formed in the atmosphere. Most of each nitroarene (>67%) existed as fine particulates (diameters<1.1μm) which could reach pulmonary alveoli more easily. The sum of the mutagenic contributions of the above eight nitroarenes was estimated to be 6.0%.
- 社団法人日本分析化学会の論文
- 1999-07-05