Federal limits on indoor exposure to nitrogen dioxide are to be reduced under a Health Canada proposal. The gas is produced by wood-burning stoves and heaters. Regulators haven’t adjusted the safety limit since 1987: ‘It’s been a long time’.
Federal limits on indoor exposure to nitrogen dioxide are to be reduced under a Health Canada proposal. The gas is produced by wood-burning stoves and heaters. Regulators haven’t adjusted the safety limit since 1987: ‘It’s been a long time’.