Physics-Based Spatial Oversampling of TROPOMI NO₂ Observations to US Neighborhoods Reveals the Disparities of Air Pollution.

ABSTRACT: Satellite observations provide continuous and global coverage observations of air pollutants, widely used to inform health impacts and air pollution disparities. Linking satellite retrievals with socioeconomic or health data involves matching the irregularly shaped satellite observations with administrative units. Here, we develop a physics-based approach to spatially oversample nitrogen dioxide (NO₂) retrievals from TROPOspheric Monitoring Instrument (TROPOMI) directly to United States (US) neighborhoods (i.e., block groups). The physics-based oversampling approach considers each satellite pixel as a sensitivity distribution, meaning that satellite instruments are more sensitive to the neighborhoods at the center than at the edge of the observations. We show that directly overs

SUBMITTER: Jin X 

PROVIDER: S-EPMC12357153 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature