摘要
2012年8月6日—19日,广东大气超级监测站对广东鹤山地区大气中过氧乙酰基硝酸酯(以下简称:PAN)进行了观测,并对影响其值变化的因素进行了分析。结果表明,PAN的最高值达到了4.654×10-9,存在一定程度的光化学污染现象。PAN日变化呈典型单峰型,最高值通常出现在14:00-16:00,这与O3的日变化规律基本一致。此外,PAN值的变化与NO和NO2存在一定的相关性,PAN峰值均出现在NO与NO2比值较低的时段。
Atmospheric PAN was measured by online instrument at Guangdong Atmospheric Supersite of China, located in Heshan, in August 2012. The variation pattern and its influence factors were analyzed. During this measurement, the highest concentration of PAN was 4. 654 x 10^ -9, indicating a moderate photochemical pollution in this area. The diurnal variation of PAN showed a typical unimodal pattern with a peak at 14：00-16：00, which is similar to that of 03. Besides, PAN was also related to NO and NO2 , with peaks appeared during time with low values of φ（ NO）/φ（ NO2 ） ratio.
出处
《环境监测管理与技术》
2013年第4期24-27,共4页
The Administration and Technique of Environmental Monitoring
