摘要
文章利用2014年天津市武清区大气污染物臭氧(O_3)、二氧化氮(NO_2)和一氧化碳(CO)的监测数据,分析研究武清区O_3及其前体物NO_2和CO等大气污染物浓度水平和变化特征。结果表明武清区O_3浓度水平呈现明显的季节变化特征。夏季O_3浓度为106μg·m^(-3),冬季浓度为28μg·m^(-3),主要与光化学反应在夏季比较强烈,冬季紫外强度和平均温度均较低,光化学反应较弱有关。2014年武清区大气中NO_2年均值为51μg·m^(-3),CO年均值为1.9 mg·m^(-3),冬季是NO_2和CO浓度最高的季节。
NO2, CO and O3 concentrations and meteorological conditions were measured in Tianjin Wuqing District in2014, and the variation characteristics were analyzed. The results showed that the average concentrations of O3 indifferent seasons decreased in the order of summer and winter, which were 106 μg·m-3, 28 μg·m-3. This seasonal variationsof O3 concentration are influenced by the stronger photochemical reactions in summer and weaker reactions in winter.The annual average concentrations of NO2 and CO in 2014 were 51 μg·m-3 and 1.9 mg·m-3, respectively. The concentrationsof NO2 and CO were all highest in winter.
出处
《江苏科技信息》
2016年第23期21-22,共2页
Jiangsu Science and Technology Information
