Zhao Wei, Fan Shao-jia, Xie Wen-zhang, Sun Jia-ren
Huan Jing Ke Xue. 2015 Dec;36(12):4358-65.
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.
基于2015年春节期间珠江三角洲空气质量监测站的数据，对区域空气质量进行了调查，并评估了燃放烟花对城市空气质量的影响。结果表明：在此期间，就区域内PM₁₀、PM₂.₅、SO₂和CO浓度而言，肇庆是污染最严重的城市，惠州是O₃污染最严重的城市，广州是NO₂污染最严重的城市。与去年数据相比，春节期间SO₂、NO₂、CO、PM₁₀和PM₂.₅浓度显著下降，但O₃浓度有所上升。春节期间燃放烟花主要集中在郊区。烟花的集中燃放使得除夕当晚SO₂、PM₁₀和PM₂.₅浓度显著增加，甚至成倍增加，但对CO、O₃和NO₂没有显著影响。燃放烟花导致PM₂.₅/PM₁₀比例迅速下降，颗粒物浓度达到峰值时，PM₂.₅/PM₁₀比例达到最小值。通过评估，各城市燃放烟花每小时浓度的最大贡献值为：PM₂.₅在16 µg·m⁻³至65 µg·m⁻³之间，PM₁₀在28 µg·m⁻³至138 µg·m⁻³之间，SO₂在9 µg·m⁻³至43 µg·m⁻³之间。
