Urban Green Infrastructure and Its Impact on Air Quality in Densely Populated Cities

Urban green infrastructure (UGI) is increasingly recognized as a vital component of sustainable urban planning. In densely populated cities, where air pollution poses significant risks to public health and environmental stability, UGI offers a natural and cost-effective solution. This article explores the relationship between urban green infrastructure and air quality improvement, examining the mechanisms through which vegetation reduces pollutants and presents case studies from major global cities. It also discusses design strategies, implementation challenges, and policy implications, concluding with recommendations for integrating UGI into urban development frameworks to enhance air quality and promote livable cities.