Modification of cloud condensation nucleus activity of organic aerosols by hydroxyl radical heterogeneous oxidation
Modification of cloud condensation nucleus activity of organic aerosols by hydroxyl radical heterogeneous oxidation
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DOI：
10.1016/j.atmosenv.2009.06.043
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发表时间：
2009-10-01
影响因子：
5
通讯作者：
Abbatt, J. P. D.
中科院分区：
文献类型：
--
作者：
George, I. J.;Chang, R. Y. -W.;Abbatt, J. P. D.
研究了OH自由基对饱和有机颗粒非均相氧化后云凝结核（CCN）活性的影响。将亚微米癸二酸二（2-乙基己基）酯（BES）和硬脂酸颗粒暴露于反应器流管中的OH自由基，并监测CCN活性。单分散硬脂酸和尺寸为145-150 nm的BES颗粒的吸湿参数K从100 nm增加到100 nm。
The modification of cloud condensation nucleus (CCN) activity of saturated organic particles resulting from heterogeneous oxidation by OH radicals was studied. Submicron Bis-2-ethylhexyl sebacate (BES) and stearic acid particles were exposed to OH radicals in a reactor flow tube and CCN activity was monitored. The hygroscopicity parameter, K, for monodisperse stearic acid and BES particles of 145-150 nm in size increased from