کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4443467 | 1311194 | 2007 | 11 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Formation of 9,10-phenanthrenequinone by atmospheric gas-phase reactions of phenanthrene Formation of 9,10-phenanthrenequinone by atmospheric gas-phase reactions of phenanthrene](/preview/png/4443467.png)
Phenanthrene is a 3-ring polycyclic aromatic hydrocarbon which exists mainly in the gas-phase in the atmosphere. Recent concern over the presence of 9,10-phenanthrenequinone in ambient particles led us to study the products of the gas-phase reactions of phenanthrene with hydroxyl radicals, nitrate radicals and ozone. The formation yields of 9,10-phenanthrenequinone were measured to be ∼3%, 33±9%, and ∼2% from the OH radical, NO3 radical and O3 reactions, respectively. Calculations suggest that daytime OH radical-initiated and nighttime NO3 radical-initiated reactions of gas-phase phenanthrene may be significant sources of 9,10-phenanthrenequinone in ambient atmospheres. In contrast, the ozone reaction with phenanthrene is unlikely to contribute significantly to ambient 9,10-phenanthrenequinone.
Journal: Atmospheric Environment - Volume 41, Issue 10, March 2007, Pages 2025–2035