05-25-2016, 03:16 PM
Thanks! I did find current readings, too, for example here:
http://www.airqualityontario.com/history...onid=26060
Currently showing:
O3: 66 ppb
PM2.5: 9 µg/m3
NO2: 5 ppb
The WHO recommended maximum mean:
O3: 50 ppb (8h)
PM2.5: 25 µg/m3 (24h)
NO2: 105 ppb (1h)
As a percentage of the WHO recommendation:
O3: 133%
PM2.5: 36%
NO2: 5%
Clearly the ozone levels are the problem here, not particulates or NO2. Still under the 80 ppb danger level but not good.
http://www.airqualityontario.com/history...onid=26060
Currently showing:
O3: 66 ppb
PM2.5: 9 µg/m3
NO2: 5 ppb
The WHO recommended maximum mean:
O3: 50 ppb (8h)
PM2.5: 25 µg/m3 (24h)
NO2: 105 ppb (1h)
As a percentage of the WHO recommendation:
O3: 133%
PM2.5: 36%
NO2: 5%
Clearly the ozone levels are the problem here, not particulates or NO2. Still under the 80 ppb danger level but not good.