秋季典型光化学污染过程的分析

Analysis on the Typical Photochemical Processes of Pollution in Autumn

通过一个月的Ｏ３－ＮＯｘ同步观测和有关气象资料分析，研究了光化学污染特点及其和气象的关系．发现秋季的光化学污染过程，既有冬夏两季局地源产生和积累的机制，也有春季外来源造成的高浓度Ｏ３污染特点．Ｏ３的最大浓度和日最大值平均浓度分别为１６８．７μｇ／ｍ３和１１４．

ynchronous observations of O3-NOx concentrations and relative meteorological meterial have been lasted for one month,in order to study the characteristics of photochemical pollution and their relations with meteorology.Photochemical pollution processes in the autumn have been found. It not only includes the mechanisms of producing and accumulating of local sources as in summer and winter,but also includes the feature of high ozone pollution from outer sources as in spring.The highest and mean maximum concentrations of O3 reaches 168.7 μg/m3 and 114. 8μg/m3,respectively.