Exposure to particles and nitrogen dioxide among workers in the Stockholm underground train system

ConclusionsCleaners and other platform workers were statistically significantly more exposed to particles than train drivers or ticket sellers. Particle concentrations (PM2.5) in the Stockholm underground system were within the same range as in the New York underground system but were much lower than in several older underground systems around the world.
Source: Safety and Health at Work - Category: Occupational Health Source Type: research