Environment Canada has posted a smog warning for all of Greater Montreal. Heavy smog is expected to last though tomorrow morning.
Smog impacts asthmatic children and people with respiratory ailments or heart disease especially. The government recommends that these people avoid outdoor physical activity until the smog warning is lifted.
In addition, those living in the City of Montreal are not permitted to use wood-burning stoves while the smog warning is in effect, under to a city bylaw.