Personal exposures of children to nitrogen dioxide relative to concentrations in outdoor air. C H LINAKER, A J CHAUHAN, H M INSKIP, S T HOLGATE, D COGGON. 2000;57:472-6

Unfortunately an authors' error occurred in this paper in the conversion of concentrations of outdoor nitrogen dioxide (NO₂) from ppb to µg/m³. As a consequence, all of the NO₂ measurements that were reported in outdoor air should be multiplied by a factor of 3.53. The correlations with personal NO₂ measurements are unchanged, as is the interpretation of our findings. Although higher than originally indicated, the outdoor NO₂ concentrations were nevertheless relatively low.