Wang Jun-Xiu, An Jun-Lin, Shao Ping, Zou Jia-Nan, Lin Xu, Zhang Yu-Xin
Key Laboratory of Meteorological Disaster, Ministry of Education(KLME), Joint International Research Laboratory of Climate and Environment Change(ILCEC), Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science & Technology, Nanjing 210044, China.
Hangzhou Environmental Monitoring Center Station, Hangzhou 310007, China.
Huan Jing Ke Xue. 2017 Jun 8;38(6):2256-2263. doi: 10.13227/j.hjkx.201607226.
The data of ozone (O) and its precursors (NO, CO, VOCs) observed at northern suburb of Nanjing from December 01, 2013 to November 30, 2014 were used to analyze the difference of pollutant concentrations on weekends and weekdays, and its causes. The results showed that there was an obvious "Weekend Effect" in northern suburb of Nanjing. The mass concentrations of O on weekdays were higher than those on weekends, whereas mass concentrations of its precursors were higher on the weekends; The average mass concentrations of O were 19.84 μg·m, 53.45 μg·m, 57.17 μg·m, and 40.43 μg·m in winter, spring, summer, and autumn respectively. Compared with other seasons, "Weekend Effect " was more distinct in spring. The value of NO/NO was 4.81% higher on weekdays (3.63) than on weekends (3.46). The longer cumulative time and higher accumulation rate of O, and the stronger atmospheric oxidation capacity on weekdays were responsible for the higher O mass concentrations on weekdays. The correlation coefficients of the mass concentrations of O with VOCs, NO, NO, and NO were higher on weekdays than on weekends.
利用2013年12月1日至2014年11月30日在南京北郊观测到的臭氧（O）及其前体物（NO、CO、VOCs）数据，分析了周末和工作日污染物浓度的差异及其成因。结果表明，南京北郊存在明显的“周末效应”。工作日O的质量浓度高于周末，而其前体物的质量浓度在周末较高；冬季、春季、夏季和秋季O的平均质量浓度分别为19.84μg·m、53.45μg·m、57.17μg·m和40.43μg·m。与其他季节相比，“周末效应”在春季更为明显。工作日NO/NO的值（3.63）比周末（3.46）高4.81%。工作日O的累积时间更长、累积速率更高，以及大气氧化能力更强，导致工作日O的质量浓度更高。工作日O质量浓度与VOCs、NO、NO和NO的相关系数高于周末。
