This dataset provides annual measurements of key air quality indicators across administrative regions in Saudi Arabia. It includes concentrations of major atmospheric pollutants: particulate matter (PM10 and PM2.5), tropospheric ozone (O₃), carbon monoxide (CO), sulfur dioxide (SO₂), and nitrogen dioxide (NO₂) captured at the regional level over multiple years. The data are reported using standardized measurement units and are intended to support environmental monitoring, policy analysis, and research on air pollution trends and public health impacts. Each record corresponds to a specific administrative region and year, enabling temporal and spatial comparisons of air quality conditions across the country.