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Tag: Toronto

Toronto has some of the worst air quality in the world right now — and a new study says smog and wildfire smoke can damage your heart

With the city once again blanketed in wildfire smoke, experts are warning that long-term exposure to air pollution can lead to higher risk of heart failure.

Environment Canada issued a special air quality statement on Sunday night due to wildfire smoke from northern Ontario pushing Toronto’s Air Quality Health Index to 10+, classified as “very high risk.” Poor air quality was expected to persist Monday and possibly into Tuesday.

The effects of air pollution on the heart are underscored in a recent study, which found that long-term exposure to air pollution, in particular fine particulate matter, was linked to higher levels of diffuse myocardial fibrosis, a type of heart scarring that can lead to higher risk of heart failure.

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Air quality alert issued for Toronto, GTA as forest fire smoke pushes levels to ‘high risk’

Toronto and much of the GTA are under a special air quality statement as smoke from forest fires in northern Ontario pushes into the region, Environment Canada warned Sunday night.

The agency says winds are carrying smoke into the area, reducing visibility and pushing the Air Quality Health Index to 10+, classified as “very high risk,” early Monday morning. Poor air quality is expected to persist into Monday and possibly Tuesday, Environment Canada added.

Torontonians are urged to reduce or reschedule strenuous outdoor activities, particularly if you experience coughing, runny nose, throat or eye irritation or any other symptoms.

People aged 65 and older, pregnant people, infants and young children, people with an existing illness or chronic health condition and people who work outdoors are most at risk, Environment Canada says, adding that more serious symptoms such as chest pain or severe coughing should be treated as medical emergencies.

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Air quality in Toronto among worst in the world amid wildfire smoke, global tracker shows

Toronto is currently the second most polluted major city in the world as wildfire smoke spreads across the city, according to a global tracker.

The ranking by IQAir, a Swiss air quality technology company, puts the city below Santiago, Chile, and above Montreal, which is in third place as it also faces wildfire smoke from western provinces.

As of noon Friday, air quality in Toronto was above 10 on Environment Canada’s air quality health index, which means “very high risk,” according to the weather agency’s website.

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Wildfires: Toronto and Montreal among the cities with the worst air pollution in the world

The smoke generated by the fires raging in the forests of western Canada worsened air quality on Friday in the Prairies, Ontario and Quebec, where warnings of smog and poor air quality were issued by Environment Canada.

Early this morning, Toronto and Montreal were among the most heavily polluted cities in the world, according to the website of the Swiss company IQAIR, which operates a global air quality monitoring network.

According to the measurements posted on the company’s website, at around 8.30 am, Montreal and Toronto were respectively the second and third most polluted cities in the world, behind Tashkent in Uzbekistan.

In Canada, the worst air quality was measured in Winnipeg and Ottawa on Friday morning.

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Airborne Danger

Stuffy, crowded classrooms mean kids are breathing in viruses and pollution. Parents are trying to make the air safer, but hitting roadblocks.

In September 2023, Heather Pun started sending her son to school with a carbon dioxide monitor. He was spending his days in a stuffy portable classroom, and she worried that COVID was being passed lung-to-lung through the stale air.

The device, which reads the concentration of carbon dioxide (CO2) in the air, showed CO2 levels as high as 3,500 parts per million (ppm) in his classroom.

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Toronto hospitals with UHN reinstate masking requirements ahead of the flu, cold and COVID season

Toronto’s University Health Network (UHN) is upping its masking requirements amid respiratory virus season.

As of Oct. 28, patients, visitors and staff will need to wear a mask while waiting for care, receiving care and in high-risk areas, UHN said in an update on its website.

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I loved my teaching career. COVID normalization stole it from me

Jacob Scheier is an essayist, freelance journalist and Governor-General’s Literary Award-winning poet whose books include Is This Scary?

It might not have been the most favourable, but one of the most memorable comments I ever received on a student evaluation was that I could be “a bit hard to follow, but that was more an example of [my] passion for this subject over anything.” That subject was creative writing. And yes, sometimes, I had difficulty tempering my excitement throughout a teaching career that has now been cut short.

I have – or had – been teaching as a contract or “sessional” creative-writing instructor. Given the competitiveness of the academic job market and my age (I was nearly 40 when I earned the requisite degree, though I had already published four books), I had come to accept that it was unlikely that I would ever have a faculty position. But I could live with that because I still had the rare privilege of making a (barely) livable wage doing something I was very passionate about.

The COVID-19 pandemic took that from me. Actually, that’s not quite right. It was the perceived “end” of the pandemic that really ruined my teaching career.

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Toronto seeing ‘spike’ in mpox cases: officials

Toronto is reporting a “spike” in mpox cases and health officials are urging eligible residents to get vaccinated to contain the spread.

In a news release issued Tuesday, Toronto Public Health said it has seen 93 confirmed cases as of July 31. This time last year, the city’s case count stood at 21.

The latest numbers indicate that there were 13 new cases confirmed in Toronto over the last two weeks of July.

According to TPH, mpox cases have been reported across the city, however a higher concentration of infections has been observed among residents in the downtown core.

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Ontario has a globally praised system for monitoring diseases through wastewater. So why is the province shutting it down?

For the past three years, Alexandra Johnston has started her work day by reaching for the pickaxe in the trunk of her car.

It is her tool of choice for prying open manhole covers – a task she demonstrated with practised ease last week while on a tour of her wastewater sampling regimen in Toronto.

Wearing a surgical mask and gloves, Ms. Johnston dragged the heavy cover aside, then grabbed hold of the fishing line secured underneath. After hauling up a few metres of line, she displayed her catch: a dripping wet tampon she had placed there the day before.

Her teammate, Claire Gibbs, quickly moved in with a prelabelled plastic bag to capture the sewage-laden sample. Using scissors, Ms. Gibbs deftly snipped the line, sealed the bag and stowed it away in the trunk as part of that day’s delivery.

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Ontario sees first measles death in more than a decade after young child dies

A young child has died of measles in Ontario, marking the first death in the province from the highly contagious virus in more than 10 years, a Public Health Ontario report confirms.

The child, who was under the age of five, was not immunized against the virus, according to the report, which was published on Thursday.

The report also confirms this is the first measles death in the province in more than a decade.

Public Health Ontario says that there have been 22 confirmed cases of measles reported in the province in 2024. Of those individuals, 13 were children and nine were adults. Four of the adults were previously immunized, two were unimmunized, and two had an unknown immunization status.

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Number of Ontario measles cases nears 10-year high as Peel Region confirms new case

Health officials in Peel Region have confirmed a Mississauga resident has contracted measles, as the total number of cases in the province approaches a 10-year high.

In a news release on Tuesday, Peel Public Health confirmed its second case of measles this year. Officials did not disclose how the man got infected but provided locations where the public may have been exposed.

Those who were at Silver Creek Convenience and Health Care Medical Clinic on May 10 between 9 a.m. and 1 p.m., as well as Trillium Health Partners Mississauga Site Emergency Room at 9:15 a.m. on May 10 and 6:15 p.m. on May 11, are being advised to contact Peel Public Health at 905-799-7700 immediately.

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COVID-19 virus disrupts protein production, study finds

When SARS-CoV-2 enters our cells, it disrupts the process of making proteins, which are essential for our cells to work correctly. A particular SARS-CoV-2 protein called Nsp1 has a crucial role in this process. It stops ribosomes, the machinery that makes proteins, from doing their job effectively. The virus is like a clever saboteur inside our cells, making sure its own needs are met while disrupting our cells’ ability to defend themselves.

— Talya Yerlici, a post-doctoral researcher at the University of Toronto’s Temerty Faculty of Medicine
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Second case of measles confirmed in Toronto

A second lab-confirmed case of measles has been identified in Toronto.

The city’s public health agency said that an infant who recently returned from travel has contracted the disease. The child is recovering at home.

The first Toronto case was identified on Feb. 16.

Toronto Public Health is warning that anyone who attended the Agincourt Public Library between 1 p.m. and 5:30 p.m. on March 11 may have been exposed. Individuals should monitor for symptoms until April 1 and double check that their vaccinations are up to date.

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Homeless people in Toronto more likely to get COVID again compared to housed population: study

People who are homeless have high rates of COVID-19 reinfection, putting the health of an already vulnerable population at further risk, a study published Friday in the BMC Infectious Diseases journal says.

Homeless people in Toronto who had COVID-19 were more than twice as likely to get it again as people who had housing, said lead author Lucie Richard, a senior research associate at the MAP Centre for Urban Health Solutions at St. Michael’s Hospital.

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Toronto may be past its flu peak, but COVID-19 remains high, public health agency says

Toronto likely reached its influenza season peak in December, but according to Toronto Public Health’s latest respiratory illness update, COVID-19 infections are expected to remain high for now.

The percentage of positive influenza tests dropped to 6.6 per cent the week of Dec. 31 to Jan. 6, down from 15.6 per cent the week prior, Toronto Public Health (TPH) told the city’s Board of Health Monday. When it comes to COVID-19, positivity dropped only slightly to 17.6 per cent for the week of Dec. 31 to Jan. 6 from 18.6 per cent the week before.

But getting over the influenza peak doesn’t mean there aren’t still high levels of the illness in the city.

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With COVID-19 clinics set to close, Toronto wants to focus on boosting student immunization rates

With four of Toronto’s temporary COVID-19 vaccination sites set to close for good, the city is hoping to switch focus to boosting immunization rates for school-aged children.

Provincial funding will soon run out, meaning “fixed-site” vaccination clinics at Metro Hall, Cloverdale Mall, North York Civic Centre and one near Scarborough Town Centre will close after Dec. 13, the city announced in a release Monday.

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