Ambient nitrogen dioxide in 47,187 neighborhoods across 326 cities in eight Latin American countries: population exposures and associations with urban features.

ABSTRACT:

Background

Health research on ambient nitrogen dioxide (NO₂) is sparse in Latin America, despite the high prevalence of NO₂-associated respiratory diseases in the region. This study describes within-city distributions of ambient NO₂ concentrations at high spatial resolution and urban characteristics associated with neighborhood ambient NO₂ in 326 Latin American cities.

Methods

We aggregated estimates of annual surface NO₂ at 1 km² spatial resolution for 2019, population counts, and urban characteristics compiled by the SALURBAL project to the neighborhood level (i.e., census tracts). We described the percent of the urban population living with ambient NO₂ levels exceeding WHO Air Quality Guidelines.

SUBMITTER: Kephart JL 

PROVIDER: S-EPMC10187449 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature