If the level of fine particulate in the air reaches 60 micrograms per cubic metre, Envornment Canada issues a warning. Ottawa hit 260 today.
Ottawa has been under a special air quality advisory since Monday because of smoke from forest fires in Quebec, Ontario and elsewhere. But early on Tuesday, the risk level spiked as one of the key measures of poor air quality hit levels more commonly seen in some of the most polluted parts of the world.
Beijing, which in the past has had some of the worst air quality in the world was registering a moderate 61 on Tuesday. In parts of India, though, PM2.5 readings were over 900 — considered hazardous to health. The World Health Organization recommends levels of 15 or less. But Dr. Tom Kovesi, a pediatric respirologist at CHEO, said the air quality in Ottawa is a risk to everyone.
People with asthma, COPD or other chronic lung diseases are at increased risk of additional inflammation and may become wheezy or short of breath, Aaron said. Birgit Isernhagen, a member of the healthy environments team at Ottawa Public Health, said public health supports people wearing masks outdoors when air quality is poor. She added that people should listen to their bodies.
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