Background: More than a decade of satellite observations offers global information about the
trend and magnitude of human exposure to fine particulate matter (PM2. 5). Objective: In this …

Background Epidemiologic and health impact studies of fine particulate matter with
diameter< 2.5 μm (PM2. 5) are limited by the lack of monitoring data, especially in …

Exposure to outdoor fine particulate matter (PM2. 5) is a leading risk factor for mortality. We
develop global estimates of annual PM2. 5 concentrations and trends for 1998–2018 using …

ABSTRACT Fine particulate matter (PM2. 5) is a well-established risk factor for public health.
To support both health risk assessment and epidemiological studies, data are needed on …

Accurate data concerning historical fine particulate matter (PM2. 5) concentrations are
needed to assess long-term changes in exposure and associated health risks. We estimated …

Ground-based observations have insufficient spatial coverage to assess long-term human
exposure to fine particulate matter (PM 2.5) at the global scale. Satellite remote sensing …

Ambient fine particulate matter (PM2. 5) is a leading environmental risk factor for premature
mortality. We use aerosol optical depth (AOD) retrieved from two satellite instruments, MISR …

Epidemiologic and health impact studies are inhibited by the paucity of global, long-term
measurements of the chemical composition of fine particulate matter. We inferred PM2. 5 …

Annual global satellite-based estimates of fine particulate matter (PM2. 5) are widely relied
upon for air-quality assessment. Here, we develop and apply a methodology for monthly …

Ambient fine particulate matter (PM2. 5) is the world's leading environmental health risk
factor. Quantification is needed of regional contributions to changes in global PM2. 5 …