Assessing Temporal and Spatial Patterns of Observed and Predicted Ozone in Multiple Urban Areas

摘要

BACKGROUND: Ambient monitoring data show spatial gradients in ozone (O-3) across urban areas. Nitrogen oxide (NOx) emissions reductions will likely alter these gradients. Epidemiological studies often use exposure surrogates that may not fully account for the impacts of spatially and temporally changing concentrations on population exposure.