通过绿色-蓝色-灰色基础设施减少空气污染
Prashant Kumar1,2,3,4, Karina Corada5, Sisay E Debele1
1Global Centre for Clean Air Research (GCARE), School of Sustainability, Civil and Environmental Engineering, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford GU2 7XH, UK.
The innovation geoscience
|April 17, 2025
概括
绿色-蓝色-灰色基础设施 (GBGI) 可以平均减少16%的城市空气污染,线性和建筑特征显示显著的影响. 然而,效果因城市形式而异,气候变化需要标准化报告,以便更好地融入战略.
科学领域:
- 环境科学 环境科学
- 城市规划 城市规划
- 大气化学 大气化学
背景情况:
- 绿色-蓝色-灰色基础设施 (GBGI) 提供了城市环境的好处,但其减轻空气污染的影响研究不足和碎片化.
- 现有的文献缺乏对各种GBGI类型及其特定的污染物去除机制的全面定量评估.
研究的目的:
- 系统地审查和评估GBGI对空气污染减缓能力的定量研究.
- 为了比较不同GBGI类型的污染物清除过程.
- 确定GBGI和空气质量的研究缺口和未来研究领域.
主要方法:
- 对51种GBGI类型的元分析,重点关注22种提供定量污染减排数据的类型.
- 将GBGI分为八种主要类型进行比较分析.
- 分析影响GBGI疗效的因素,包括风,植被特征和城市形态.
主要成果:
- GBGI平均减少了16 ± 21%的空气污染,线性特征 (23 ± 21%) 和公园 (22 ± 34%) 显示出重大影响.
- 减少的特定污染物包括PM1,PM2.5,PM10,UFP,BC,CO,O3和NOx,具有不同程度的有效性.
- 街头树木表现出取决于环境的影响,有利于公路,但可能会使街道峡谷的空气质量恶化.
结论:
- GBGI具有显著的,尽管是可变的,改善城市空气质量的潜力,从线性和建筑类型的显著表现.
- 城市形态和气候变化带来了挑战,可能会改变GBGI的有效性,并需要适应性策略.
- 标准化报告结构对于有意义的比较和有效地将GBGI发现纳入城市规划和气候战略至关重要.
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