Effect of fireworks on the air quality during the Spring Festival of 2015 in Tianjin City
YANG Zhi-wen1, WU Lin1, YUAN Jie2, LI Feng-hua1, YUAN Yuan1, MAO Hong-jun1
1. Department of Environmental Science and Engineering, NanKai University, Tianjin 300071, China;
2. Tianjin Environment Monitoring Centre, Tianjin 300191, China
In order to investigate the impacts of fireworks on air quality in Tianjin city, ambient concentrations of gaseous pollutants (SO2, O3, NO, NO2), particulate matters (PM1.0, PM2.5, PM10) and fractions (water-soluble ions, organic carbon, elemental carbon) were monitored online at the station of Tianjin Environment Monitoring Centre, during the Spring Festival in 2015. The ambient concentrations of gaseous pollutants, particulate matter, and chemical species of PM2.5 were compared between the fireworks and non-fireworks periods. The concentrations of PM1.0, PM2.5, PM10 and SO2 were heavily affected by fireworks, the concentrations of which were 284.00 μg/m3、428.00 μg/m3、714.00 μg/m3 and 283.14 μg/m3 respectively during the heavy-firework period, and among the setting off period, the mean concentrations of which were increased by 2.99、2.54、2.07 and 3.27 times higher than non-discharge periods. Fireworks had great influence on the water soluble ionic in PM2.5, especially on the potassium, chloride, sulfate, magnesium, nitrite and sodium ions, which accounted for 35.28% of the PM2.5 mass concentration during the peak period. At that time, the concentrations of OC and EC were 15.68 μg/m3 and 2.96 μg/m3 respectively, which were 2.0 and 1.4 times of the mean concentration of the previous hour.
杨志文, 吴琳, 元洁, 李凤华, 袁远, 毛洪钧. 2015年春节期间天津烟花爆竹燃放对空气质量的影响[J]. 中国环境科学, 2017, 37(1): 69-75.
YANG Zhi-wen, WU Lin, YUAN Jie, LI Feng-hua, YUAN Yuan, MAO Hong-jun. Effect of fireworks on the air quality during the Spring Festival of 2015 in Tianjin City. CHINA ENVIRONMENTAL SCIENCECE, 2017, 37(1): 69-75.
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