Street- and census-level NO₂ data for Barcelona with uncertainty and exceedance probability mapping.

ABSTRACT: Air pollution is the leading environmental threat to public health. Despite their value in raising awareness and improving access to complex data, street-level air quality platforms remain scarce. Moreover, uncertainty in high-resolution air pollution estimates is rarely reported. This study presents six years (2019-2024) of nitrogen dioxide (NO₂) concentration data for Barcelona (Spain), along with spatial maps of associated uncertainty. Besides providing high-resolution annual estimates (25 m × 25 m), the database includes daily NO₂ concentrations at census-tract level, enabling temporal assessments with full spatial coverage citywide for the first time. The incorporation of uncertainty estimates represents a milestone for open street-scale air quality data and supp

SUBMITTER: Criado A 

PROVIDER: S-EPMC12917102 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature