Study on influencing factors of atmospheric NO2 and O3 in Tianjin Binhai International Airport
HAN Bo1, YAO Ting-wei1, WANG Li-jie1, KONG Wei-kai1, HE Zhen1, ZHANG Duo2, WANG Yu1
1. Tianjin Key Laboratory for Air Traffic Operation Planning and Safety Technology, College of Air Traffic Management, Civil Aviation University of China, Tianjin 300300, China;
2. Operation Management Center, Air Traffic Management Bureau, Civil Aviation Administration of China, Beijing 100022, China
Continuous monitoring of atmospheric conventional pollutants in the airport area was carried out at the point adjacent to the runway of Tianjin airport. The Generalized Additive Model (GAM) was applied to identify the impact factors of NO2 and O3 between March 2017 and February 2018, and the contribution rate was determined. The selected factors included environmental factors (SO2, NO, NO2 and O3, CO, PM2.5, PM10 and previous concentration), meteorological factors (wind direction, wind speed, temperature, dew point temperature, correction of sea pressure) and aviation activity factors (takeoff and landing). The results showed that the daily mean of NO2 was 17.6~123.6 μg/m3. Among them, the number of days exceeding the standard was 38, accounting for about 13%. The daily mean of O3 was 1.0~276.1 μg/m3, accounting for 26% of the days exceeding the standard. The pollution of O3 in the airport area was mainly concentrated in summer. Environmental factors, whose contribution ratewas between 56% and 89%, were the main factors affecting the atmospheric environment in the area. As an important regional pollution source, the contribution rate of aviation activities to the change of atmospheric NO2 and O3 concentration was more prominent, Which accounts for 20%. The relative contribution of meteorological factors was relatively low. All Adj-R2 of GAM were from 0.85 to 0.96, and the screened influence factors could effectively explain the variation of conventional gaseous pollutants.
韩博, 姚婷玮, 王立婕, 孔魏凯, 何真, 张铎, 王愚. 天津机场区域大气NO2及O3影响因子研究[J]. 中国环境科学, 2020, 40(6): 2398-2408.
HAN Bo, YAO Ting-wei, WANG Li-jie, KONG Wei-kai, HE Zhen, ZHANG Duo, WANG Yu. Study on influencing factors of atmospheric NO2 and O3 in Tianjin Binhai International Airport. CHINA ENVIRONMENTAL SCIENCECE, 2020, 40(6): 2398-2408.
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