| 烟花燃放对珠三角地区春节期间空气质量的影响 |
| 摘要点击 2327 全文点击 1445 投稿时间：2015-03-11 修订日期：2015-07-11 |
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| 中文关键词 珠三角 春节 烟花燃放 空气质量 浓度贡献 |
| 英文关键词 Pearl River Delta Spring Festival burning fireworks air quality contribution of concentration |
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| 中文摘要 |
| 为研究烟花爆竹燃放对珠三角区域城市空气质量的影响,对2015年春节期间珠三角地区环境空气质量自动监测站的数据进行了分析. 结果表明,春节期间珠三角地区PM10、PM2.5、SO2和CO污染最严重的城市均为肇庆市,臭氧污染最严重的为惠州,广州市NO2污染最严重; 与去年同期相比,各地SO2、NO2、CO、PM10和PM2.5的浓度普遍有大幅的降低,但春节期间臭氧浓度有所增加; 春节期间烟花燃放行为主要集中在郊区,市区内燃放现象较少; 烟花燃放对SO2、PM10和PM2.5浓度的短期影响极大,造成除夕夜间污染物浓度迅速升高,甚至成倍增加,对CO、O3和NO2没有明显的影响; 烟花燃放造成PM2.5/PM10比例迅速下降,在颗粒物浓度达到峰值后,PM2.5/PM10的比例也到达最小值; 烟花燃放对各地PM2.5的小时浓度最大贡献值在16~65 μg ·m-3之间,对各地PM10的小时浓度最大贡献值在28~138 μg ·m-3之间,对各地SO2的小时浓度最大贡献值在9~43 μg ·m-3之间. |
| 英文摘要 |
| Based on data from the air quality monitoring stations in the Pearl River Delta during the 2015 Spring Festival, the regional air quality was investigated and the impact of burning fireworks on urban air quality was assessed. The results showed that: Zhaoqing was the worst polluted city in PM10, PM2.5, SO2 and CO in terms of concentrations in the region during the period, Huizhou was the worst polluted city in O3 and Guangzhou was the most polluted city in NO2 at the same time. Compared to the data of last year, the SO2, NO2, CO, PM10 and PM2.5 concentrations had decreased significantly, but the O3 concentration had increased during the Spring Festival. Burning fireworks during the Spring Festival were mainly concentrated in the suburbs. The concentrated discharge of fireworks made the SO2, PM10 and PM2.5 concentrations increased significantly in the New Year's Eve night, even multiplied, but had no significant effect on CO, O3 and NO2. The rapid decline in PM2.5/PM10 proportion was caused by the discharge of fireworks, and the ratio of PM2.5/PM10 reached the minimum when concentration of particles reached the peak. By assessing, the maximum contribution of hourly concentration from burning fireworks in each city was between 16 μg ·m-3 and 65 μg ·m-3 for PM2.5, between 28 μg ·m-3 and 138 μg ·m-3 for PM10 and between 9 μg ·m-3 and 43 μg ·m-3 for SO2. |
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