The impact of circular economy initiatives on urban air quality in the United States

Abstract The study attempts to establish a connection between circular economy practices and urban air pollution in the United States, utilizing panel data from fifty states from 2009 to 2022. Given the poor state of air quality and its ominous threat to public health and environmental sustainabilit...

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Main Authors: Hadi Esmaeilpour Moghadam, Arezou Karami, Ali Rezaee Moghadam Ebrahimabad, Magdalena Radulescu
Format: Article
Language:English
Published: Nature Portfolio 2025-07-01
Series:Scientific Reports
Subjects:
Online Access:https://doi.org/10.1038/s41598-025-08554-6
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author Hadi Esmaeilpour Moghadam
Arezou Karami
Ali Rezaee Moghadam Ebrahimabad
Magdalena Radulescu
author_facet Hadi Esmaeilpour Moghadam
Arezou Karami
Ali Rezaee Moghadam Ebrahimabad
Magdalena Radulescu
author_sort Hadi Esmaeilpour Moghadam
collection DOAJ
description Abstract The study attempts to establish a connection between circular economy practices and urban air pollution in the United States, utilizing panel data from fifty states from 2009 to 2022. Given the poor state of air quality and its ominous threat to public health and environmental sustainability, the present study aims to provide empirical evidence on the effectiveness of circular economy methods in reducing harmful air pollutants. Applying the GMM estimator to the regression analysis reveals a significant positive relationship between high recycling rates and reduced air pollution levels. An Environmental Kuznets Curve has also been depicted by this study—a postulation showing that although per capita income may be increasing to start with higher pollution levels, at high-income levels it could further lead to improving air quality. These findings demonstrate the significant impact of population density on pollution levels, highlighting some of the challenges faced by metropolitan regions. The article underscores the significance of incorporating circular economy approaches into urban policy frameworks and offers fresh perspectives on guiding sustainable urban development processes.
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spelling doaj-art-55c05e6fb18b4cfd873ddd30a82a32f42025-08-20T04:01:35ZengNature PortfolioScientific Reports2045-23222025-07-0115111610.1038/s41598-025-08554-6The impact of circular economy initiatives on urban air quality in the United StatesHadi Esmaeilpour Moghadam0Arezou Karami1Ali Rezaee Moghadam Ebrahimabad2Magdalena Radulescu3Department of Economics, Faculty of Economics and Administrative Sciences, Ferdowsi University of MashhadDepartment of Economics, Faculty of Economics and Administrative Sciences, Ferdowsi University of MashhadDepartment of Geography, Faculty of Letters and Humanities, Ferdowsi University of MashhadDepartment of Finance, Accounting and Economics, National University of Science and Technology Politehnica BucharestAbstract The study attempts to establish a connection between circular economy practices and urban air pollution in the United States, utilizing panel data from fifty states from 2009 to 2022. Given the poor state of air quality and its ominous threat to public health and environmental sustainability, the present study aims to provide empirical evidence on the effectiveness of circular economy methods in reducing harmful air pollutants. Applying the GMM estimator to the regression analysis reveals a significant positive relationship between high recycling rates and reduced air pollution levels. An Environmental Kuznets Curve has also been depicted by this study—a postulation showing that although per capita income may be increasing to start with higher pollution levels, at high-income levels it could further lead to improving air quality. These findings demonstrate the significant impact of population density on pollution levels, highlighting some of the challenges faced by metropolitan regions. The article underscores the significance of incorporating circular economy approaches into urban policy frameworks and offers fresh perspectives on guiding sustainable urban development processes.https://doi.org/10.1038/s41598-025-08554-6Waste managementRecyclingSustainable developmentEnvironmental policy
spellingShingle Hadi Esmaeilpour Moghadam
Arezou Karami
Ali Rezaee Moghadam Ebrahimabad
Magdalena Radulescu
The impact of circular economy initiatives on urban air quality in the United States
Scientific Reports
Waste management
Recycling
Sustainable development
Environmental policy
title The impact of circular economy initiatives on urban air quality in the United States
title_full The impact of circular economy initiatives on urban air quality in the United States
title_fullStr The impact of circular economy initiatives on urban air quality in the United States
title_full_unstemmed The impact of circular economy initiatives on urban air quality in the United States
title_short The impact of circular economy initiatives on urban air quality in the United States
title_sort impact of circular economy initiatives on urban air quality in the united states
topic Waste management
Recycling
Sustainable development
Environmental policy
url https://doi.org/10.1038/s41598-025-08554-6
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