Pei Cheng-Lei, Wang Yu-Jun, Bi Yan-Ru, Lian Xiu-Feng, Zhou Qian-Ni, Wang Zai-Hua, Ma Li, Li Mei
Guangzhou Ecological and Environmental Monitoring Center of Guangdong Province, Guangzhou 510060, China.
Guangzhou Hexin Instrument Co., Ltd., Guangzhou 510530, China.
Huan Jing Ke Xue. 2021 Feb 8;42(2):546-555. doi: 10.13227/j.hjkx.202006045.
Twenty-one air quality monitoring stations including four with single particle aerosol mass spectrometers (SPAMS) were used to observe air quality and aerosol particulates during the 2020 Spring Festival (from January 21 to 28) in Guangzhou. The effect of burning fireworks on the atmosphere of Guangzhou and its eleven administrative regions was examined, and the chemical composition of firework particles was detected and analyzed by single particle aerosol mass spectrometry. The results show that the burning of fireworks had a significant impact on air quality in the discharge area and the prohibited discharge area. The concentrations of PM, PM, and SO sharply increased in Guangzhou on New Year's Eve. Air quality in Zengcheng District, Baiyun District, Huangpu District, and some areas of Tianhe District was also affected by the concentrated burning of fireworks on January 25 between 01:00 and 06:00. A method of fireworks tracing based on SPAMS using Al as a tracer was established with a time resolution of 5 min. The main particle types emitted by the burning fireworks were levoglucan, potassium-rich, and mineral. These particles were well mixed with nitrate, but this was not conducive to the formation of ammonium.
2020年春节期间（1月21日至28日），在广州使用了21个空气质量监测站，其中4个配备了单颗粒气溶胶质谱仪（SPAMS），用于观测空气质量和气溶胶颗粒物。研究了燃放烟花对广州及其11个行政区大气的影响，并通过单颗粒气溶胶质谱法对烟花颗粒的化学成分进行了检测和分析。结果表明，燃放烟花对燃放区和禁放区的空气质量有显著影响。除夕当天，广州的PM、PM和SO浓度急剧上升。增城区、白云区、黄埔区以及天河区部分区域的空气质量也受到1月25日01:00至06:00期间烟花集中燃放的影响。建立了一种基于SPAMS以Al作为示踪剂的烟花追踪方法，时间分辨率为5分钟。燃放烟花排放的主要颗粒类型为左旋葡聚糖、富钾颗粒和矿物颗粒。这些颗粒与硝酸盐充分混合，但不利于铵的形成。
