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| 交通减排对上海2014年PM2.5污染影响的案例研究 |
| Simulation Study on Impact of Traffic Emission Reduction on A PM2.5Pollution Case in Shanghai in 2014 |
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| DOI： |
| 中文关键词: 交通减排 PM2.5 数值模拟 上海 |
| 英文关键词: Traffic emission reduction PM2.5 Numerical simulation Shanghai |
| 基金项目:国家自然科学基金资助项目(41271055) |
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| 中文摘要: |
| 使用WRF Chem模式模拟分析2014年4月16日—18日一次上海市大气污染过程，探究交通减排对该市PM2.5浓度的影响。结果表明，模式较为成功地再现了污染过程中天气形势及大气污染物时空变化， PM2.5浓度模拟与观测结果IOA达到065。研究时段内交通减排使上海市PM2.5质量浓度平均减少 329 μg/m3，虹口凉城监测站受到交通减排影响最大，对小时平均质量浓度的最大影响超过26 μg/m3，超过此站PM2.5浓度的13%；PM2.5浓度越高，交通减排对上海市PM2.5浓度的影响越显著；交通减排对上海北部地区空气质量的改善效果最明显。 |
| 英文摘要: |
| An air pollution case in Shanghai from April 16th through 18th was studied on the impact of traffic emission reduction on PM2.5 by WRF Chem model simulation analysis. Results showed that the model successfully reproduced the weather situation and the temporal and spatial changes of the air pollutants in the pollution process. IOA reached 0.65 by the simulation and observation of PM2.5 concentration. During the study, traffic emission reduction caused PM2.5 concentration in Shanghai decline by 3.29 μg/m3 on average. Hongkou monitoring station was the most affected by traffic emission reduction. The greatest reduction of hourly average mass concentration was over 26 μg/m3, more than 13% of PM2.5 mass concentration in that station. The higher the PM2.5 concentration, the more significant the traffic emission reduction. The traffic emission reduction had the most obvious effect on the improvement of air quality in northern Shanghai. |
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