广州市黄埔大沙地NO2污染特征分析及来源解析
Pollution Characteristics and Source Apportionment of NO2 at Huangpu Dashadi of Guangzhou City
DOI: 10.12677/AEP.2020.105086, PDF,    科研立项经费支持
作者: 张雪梅：广州开发区环境监测站，广东 广州；侯红霞, 张金文, 毕燕茹, 黄 渤：广州禾信仪器股份有限公司，广东 广州
关键词: NO2来源；移动源；工业源；拥堵分析；船舶排放；Sources of NO2； Mobile Source； Industrial Source； Congestion Analysis； Ship Emissions
摘要: 于2020年1月1日~4月23日对广州市及黄埔区各站点NO2进行分析，结果表明黄埔大沙地点位NO2污染较为严重。NO2与PM2.5源解析结果相关分析表明，大沙地站点位NO2同时受到移动源和周边工业源的影响，其中受到移动源的影响程度高于工业源。污染源分布表明，站点NO2一定程度受到周边大型钢铁及发电企业的影响。车流量和车型分析表明，NO2污染高峰日受重型货车的影响较大。拥堵数据分析表明，站点周边3公里左右分别在早7时、10时、18~19时出现拥堵高峰，特别是18~19时拥堵次数和拥堵长度都较大，拥堵后NO2的质量浓度显著升高。此外，以含钒颗粒物作为船舶排放示踪物，发现黄埔大沙地NO2的污染在特定时段会受到东南区域港口船舶尾气排放影响。因此，黄埔大沙地站点NO2受到了道路移动源、工业源、船舶排放的综合影响，需进行综合性的污染防控。
Abstract: The NO2 concentrations of major environmental air quality evaluation sites of Guangzhou City and Huangpu District were analyzed from January 1 to April 23, 2020. The results showed that the Dashadi site in Huangpu was highly affected by NO2. Correlation analysis between NO2 and PM2.5 sources showed that NO2 in this site was affected by both mobile sources and industrial sources, in which the effect of mobile sources was higher. According to the distribution of pollution sources, NO2 in this site was possibly affected by the steel and power generation companies around. Traffic flow and vehicle types analysis showed that heavy trucks emissions contributed a lot to the NO2 pollution. Analysis of traffic congestion data within 3 kilometers around the site showed that, the congestion peaks appeared at 7:00, 10:00 and 18:00 - 19:00, respectively. At 18:00 - 19:00, high frequency and long length of congestion was recognized, resulting in high concentration of NO2. Moreover, using V-containing particles as a tracer of ship emissions, it was found that NO2 pollution in the Huangpu Sands was affected by ship emissions from ports in the southeast region during a certain period of time. Therefore, NO2 at the Dashadi site is affected by mobile sources, industrial sources, and ship emissions, and comprehensive pollution prevention and control strategies are required.
文章引用：张雪梅, 侯红霞, 张金文, 毕燕茹, 黄渤. 广州市黄埔大沙地NO2污染特征分析及来源解析[J]. 环境保护前沿, 2020, 10(5): 702-713. https://doi.org/10.12677/AEP.2020.105086

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