Observation and role of the free radicals NO3, ClO, BrO and IO in the troposphere
Observation and role of the free radicals NO3, ClO, BrO and IO in the troposphere
复制标题
DOI：
10.1039/fd9950000175
复制
发表时间：
1995
影响因子：
3.4
通讯作者：
U. Platt;C. Janssen
中科院分区：
文献类型：
--
作者：
U. Platt;C. Janssen
本文试图在全球范围内估算对流层中硝酸盐自由基（NO3）和活性卤素（卤素氧化自由基和卤素原子）的平均丰度，从而量化它们对对流层氧化电位的可能影响。为此，我们将新的测量结果与最近获得的数据结合起来。发现在某些情况下，自由基的整体形成与OH自由基的形成相当。然而，有人认为这些自由基对对流层氧化能力的影响不一定是相加的。例如，BrO可能是no3清除剂。
An attempt is made to obtain estimates of the average tropospheric abundance of nitrate radicals (NO3) and reactive halogen species (halogen oxide radicals and halogen atoms) on a global scale and thus to quantify their possible impact on the oxidation potential of the troposphere. For that purpose we combine new measurements with data that recently became available. It is found that the integrated formation of the radicals is comparable to that of OH radicals in certain situations. However, it is argued that the effects of these radicals on the oxidation capacity of the troposphere are not necessarily additive. For instance, BrO could be an NO3-scavenger.