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大气氧化性定量表征方法的建立及其应用 被引量:8

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摘要 从大气化学反应动力学的基本原理出发,推导出还原性污染物在大气中总的准一级氧化去除速率常数(Kpor,T),用以定量表征大气氧化性,为与大气氧化性有关问题的深入探讨提供了量化参数.并以珠江三角洲为例,以CBM-IV机理的氧化反应为基础,利用Kpor,T对该区域大气氧化性进行了数值模拟研究.结果表明,在珠江三角洲地区,大气氧化性具有明显的日变化规律和空间分布特征;OH自由基引发的氧化反应,二氧化硫的非均相氧化反应、醛类的光解反应是影响大气氧化性的主要氧化过程.
出处 《中国科学(B辑)》 CSCD 北大核心 2008年第10期938-946,共9页 Science in China(Series B)
基金 国家重点基础研究发展计划(编号:2005CB422204,2002CB410802,2002CB410801)资助
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