Using green infrastructure to improve urban air quality (GI4AQ)

Research output: Contribution to journalArticle

Authors

Colleges, School and Institutes

External organisations

  • Lancaster University

Abstract

As evidence for the devastating impacts of air pollution on human health continues to increase, improving urban air quality has become one of the most pressing tasks facing policy makers world-wide. Increasingly, and very often on the basis of conflicting and/or weak evidence, the introduction of green infrastructure (GI) is seen as a win–win solution to urban air pollution, reducing ground-level concentrations without imposing restrictions on traffic and other polluting activities. The impact of GI on air quality is highly context dependent, with models suggesting that GI can improve urban air quality in some situations, but be ineffective or even detrimental in others. Here we set out a novel conceptual framework explaining how and where GI can improve air quality, and offer six specific policy interventions, underpinned by research, that will always allow GI to improve air quality. We call GI with unambiguous benefits for air quality GI4AQ. However, GI4AQ will always be a third-order option for mitigating air pollution, after reducing emissions and extending the distance between sources and receptors.

Details

Original languageEnglish
Pages (from-to)62-73
Number of pages12
JournalAmbio
Volume49
Issue number1
Early online date16 Mar 2019
Publication statusPublished - Jan 2020

Keywords

  • Air pollution, Air quality, Green infrastructure, Urban environment