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评估不断发展的绿色和灰色城市基础设施对城市广场公园周围的局部颗粒污染的影响
Meng-Yi Jin1,2, Kiran A Apsunde2, Brian Broderick2,3
1Center for Intelligent Transportation Systems and Unmanned Aerial Systems Applications Research, State-Key Laboratory of Ocean Engineering, School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.
Scientific reports
|August 9, 2024
概括
城市绿色和灰色基础设施对空气质量产生重大影响. 优化植被高度和建筑设计对于减少城市公园周围的颗粒物 (PM) 污染至关重要.
科学领域:
- 环境科学 环境科学
- 城市规划 城市规划
- 大气科学 大气科学
背景情况:
- 城市基础设施,天气和空气污染之间的相互作用是复杂的.
- 交通排放对城市颗粒物 (PM) 有着显著的贡献.
- 绿色空间和城市发展 (灰色基础设施) 影响当地空气质量动态.
研究的目的:
- 调查城市形态,包括绿色和灰色基础设施对颗粒物污染的影响.
- 分析不断变化的公园景观和建筑发展对城市广场空气质量的影响.
- 为城市规划提供基于证据的见解,以减轻空气污染.
主要方法:
- 一个在都柏林使用固定空气质量监测活动的案例研究.
- 使用ENVI-met软件进行计算流体动力学 (CFD) 建模.
- 评估基线条件和未来城市发展场景.
主要成果:
- 颗粒物 (PM2.5和PM10) 呈现出明显的日间模式.
- 降低PM的最佳植被高度因风向而有所不同 (平行风21米,垂直风7米).
- 建筑物高度的增加加剧了PM2.5度,其影响取决于风向和建筑物位置.
结论:
- 城市规划必须考虑绿色和灰色基础设施对空气质量的详细影响.
- 绿色空间和建筑布局的战略设计可以减轻颗粒物污染.
- 深入分析对于防止城市公园周围空气质量恶化至关重要.
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