| 摘要: |
| 于2013年2月9日—2月16日在南京城区连续观测PM10、PM2.5、PM1的质量浓度、能见度、PM2.5中水溶性离子浓度等参数，探讨了因春节期间烟花爆竹的燃放导致大气中颗粒物浓度出现短时峰值，同时能见度急剧降低，空气质量下降的原因。研究发现：因烟花爆竹的燃放，PM2.5局地短时间浓度可达863μｇ/m3，能见度仅为1.2km；PM2.5中Cl-、K+与SO2-4浓度短时间上升，这与烟花爆竹中氧化剂、还原剂等组分的燃烧释放有关。由春节期间观测结果统计发现，因烟花爆竹燃放对PM2.5中水溶性离子的贡献约占50%。 |
| 关键词: 烟花爆竹 PM2.5 水溶性离子 主成分分析 |
| DOI： |
| 分类号:X831 |
| 基金项目:江苏省蓝天工程重大专项研究项目 |
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| The lmpact of PM2.5in the Air and the Water soluble Ions during Fireworks |
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QING Wei, GE Shun, ZHANG Xiangzhi, LU Weiqing, YANG Xue
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Jiangsu Provincial Environmental Monitoring Center, Nanjing, Jiangsu 210036, China
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| Abstract: |
| Mass concentration, visibility ofPM10、PM2.5、PM1, and water soluble ion concentration of PM2.5and other parameters have been continuous observed， from February 9 to February 16， in 2013， in Nanjing City. Discussed the reason for the reduction of visibility and decline of air quality while a short term peak appears during the Spring Festival with fireworks. The study found that, due to the discharge of Fireworks, the concentration ofPM2.5 reached 863μg/m3in some area in a short period of time, and the visibility is only 1.2km. At the same time, PM2.5 in PM2.5中Cl-、K+andSO2-4 rose dramatically in a short time, which to some degree is relating to the release of oxidants, reducing agents and other components in fireworks. Observations during the Spring Festival Statistics found that the contribution of the fireworks discharge to water soluble ions in PM2.5is about 50%. |
| Key words: fireworks PM2.5 water soluble ions principal component analysis |
