Disparities in ambient nitrogen dioxide pollution in the United States.

ABSTRACT: Average ambient concentrations of nitrogen dioxide (NO₂), an important air pollutant, have declined in the United States since the enactment of the Clean Air Act. Despite evidence that NO₂ disproportionately affects racial/ethnic minority groups, it remains unclear what drives the exposure disparities and how they have changed over time. Here, we provide evidence by integrating high-resolution (1 km × 1 km) ground-level NO₂ estimates, sociodemographic information, and source-specific emission intensity and location for 217,740 block groups across the contiguous United States from 2000 to 2016. We show that racial/ethnic minorities are disproportionately exposed to higher levels of NO₂ pollution compared with Whites across the United States and wi

SUBMITTER: Wang Y 

PROVIDER: S-EPMC10120073 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature