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And the TTC Presser linked to above says (quote is from Health Canada):View attachment 107025
Actually Byford, it's most regrettable that TTC air quality is comparable to Beijing, period. That's coming from the researchers who performed the study. And the Star correctly reported that "at 95 micrograms per cubic metre, researchers say the levels are typical of an average day in pollution-choked Beijing".
"While the results of this study have been compared to average air quality in Beijing, it is important to note that this comparison can be misinterpreted when simplified. Air quality in Beijing is often at levels much higher than that observed in Toronto subways during peak transit hours. Peak levels of air pollutants (particulate matter) in Beijing are often up to 8 times higher than the levels measured in the Toronto subway, and can last over periods of several days."
"
AND Ont. Min of labour says TTC subway air quality ‘not likely to endanger’ employees". Ministry of Labour. (From Star.)