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Journal article
Ambient nitrogen dioxide in 47 187 neighbourhoods across 326 cities in eight Latin American countries: population exposures and associations with urban features
The Lancet. Planetary health, v 7(12), pp e976-e984
01 Dec 2023
PMID: 38056968
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Health research on ambient nitrogen dioxide (NO
) is sparse in Latin America, despite the high prevalence of NO
-associated respiratory diseases in the region. This study describes within-city distributions of ambient NO
concentrations at high spatial resolution and urban characteristics associated with neighbourhood ambient NO
in 326 Latin American cities.
We aggregated estimates of annual surface NO
at 1 km
spatial resolution for 2019, population counts, and urban characteristics compiled by the SALURBAL project to the neighbourhood level (ie, census tracts). We described the percentage of the urban population living with ambient NO
concentrations exceeding WHO air quality guidelines. We used multilevel models to describe associations of neighbourhood ambient NO
concentrations with population and urban characteristics at the neighbourhood and city levels.
We examined 47 187 neighbourhoods in 326 cities from eight Latin American countries. Of the roughly 236 million urban residents observed, 85% lived in neighbourhoods with ambient annual NO
above WHO guidelines. In adjusted models, higher neighbourhood-level educational attainment, closer proximity to the city centre, and lower neighbourhood-level greenness were associated with higher ambient NO
. At the city level, higher vehicle congestion, population size, and population density were associated with higher ambient NO
.
Almost nine out of every ten residents of Latin American cities live with ambient NO
concentrations above WHO guidelines. Increasing neighbourhood greenness and reducing reliance on fossil fuel-powered vehicles warrant further attention as potential actionable urban environmental interventions to reduce population exposure to ambient NO
.
Wellcome Trust, National Institutes of Health, Cotswold Foundation.
Metrics
Details
- Title
- Ambient nitrogen dioxide in 47 187 neighbourhoods across 326 cities in eight Latin American countries: population exposures and associations with urban features
- Creators
- Josiah L Kephart - Drexel UniversityNelson Gouveia - University of Sao PauloDaniel A Rodríguez - University of California, BerkeleyKatherine Indvik - Drexel UniversityTania Alfaro - University of ChileJosé Luis Texcalac-Sangrador - Instituto Nacional de Salud PúblicaJ Jaime Miranda - UNSW SydneyUsama Bilal - Drexel UniversityAna V Diez Roux - Drexel University
- Publication Details
- The Lancet. Planetary health, v 7(12), pp e976-e984
- Publisher
- Elsevier
- Number of pages
- 9
- Grant note
- U54 CA267735 / NCI NIH HHS DP5 OD026429 / NIH HHS Wellcome Trust
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Urban Health Collaborative; Epidemiology and Biostatistics
- Web of Science ID
- WOS:001147545300001
- Scopus ID
- 2-s2.0-85179023437
- Other Identifier
- 991021811627604721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Environmental Sciences
- Public, Environmental & Occupational Health