Temporal trends in ambient fine particulate matter in Grenada between 2009 and 2022.

ABSTRACT: Despite its association with significant morbidity and mortality, ambient fine particulate matter (PM_2.5) is not robustly monitored in the Caribbean region. To estimate historical PM_2.5 concentration trends in Grenada, an island often impacted by Saharan dust storms, a daily time series analysis was conducted using PM_2.5 reanalysis data from the Modern-Era Retrospective Analysis for Research and Applications (MERRA-2) as a proxy, due to the absence of reference ground monitoring stations. A multivariate linear regression model was used to evaluate the interactions between MERRA-2 PM_2.5 concentrations and meteorological correlates. Finally, MERRA-2 PM_2.5 concentrations were compared to low-cost ground monitoring data obtained from Purpl

SUBMITTER: Yang NK 

PROVIDER: S-EPMC12222357 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature