Intra-urban variability of long-term exposure to PM_2.5 and NO₂ in five cities in Colombia.

ABSTRACT: Rapidly urbanizing cities in Latin America experience high levels of air pollution which are known risk factors for population health. However, the estimates of long-term exposure to air pollution are scarce in the region. We developed intraurban land use regression (LUR) models to map long-term exposure to fine particulate matter (PM_2.5) and nitrogen dioxide (NO₂) in the five largest cities in Colombia. We conducted air pollution measurement campaigns using gravimetric PM_2.5 and passive NO₂ sensors for 2 weeks during both the dry and rainy seasons in 2021 in the cities of Barranquilla, Bucaramanga, Bogotá, Cali, and Medellín, and combined these data with geospatial and meteorological variables. Annual models were developed using multivariable sp

SUBMITTER: Rodriguez-Villamizar LA 

PROVIDER: S-EPMC10791881 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature