Exposure Limits | |
---|---|
Fine particulate matter PM2.5 | < 28 μg/m3 over a 24-hour period (2015 target) (CCME, 2012) [39] |
UFP | 1,000 - 20,000 particles/m3 (Air Quality Sciences, 2011) |
CO | ≤ 11.5 mg/m3 (≤ 11 ppm) over a 24 hour period (Health Canada, 2012) [40] |
≤ 28.6 mg/m3 (≤ 25 ppm)over a 1 hour period (Health Canada, 2012) [40] | |
NO2 | ≤ 100 μg/m3 (≤ 0.05 ppm) over a 24 hour period (Health Canada, 2012) [40] |
≤ 480 μg/m3 (≤ 0.25 ppm) over a 1 hour period (Health Canada, 2012) [40] | |
SO2 | ≤ 50 μg/m3 (≤ 0.019 ppm) (Health Canada, 2012) [40] |
Fine particle number count* | - |
Coarse particle number count* | - |
Relative humidity | 30% to 55% (Health Canada, 2008) [37] |
Indoor temperature | 17 to 27 °C (Balaras et al., 2006) [38] |
CO2 | ≤ 6300 mg/m3 (≤3500 ppm) (Health Canada, 2012) [40] |