ON-school-air-quality-KYCheng18 (1)

There’s something in the air (and it isn’t tariffs)

Health risks can be a scary black box — especially when information about environmental contaminants is scarce. We make sense of it in two stories
This is not about tariffs
The Narwhal's masthead logo

Maple syrup, Anne of Green Gables, fresh-fallen snow — we’re once again talking about what, exactly, defines Canadian culture. Journalists have a somewhat uglier suggestion. It’s a consistent, long-standing, nationwide trait: a lack of quality, accessible data. 

Across Canada, federal and provincial governments either don’t collect, or don’t share, a lot of important information. The result is a data gap that covers all aspects of public life

It’s a problem, particularly for public health. Without tracking the causes and locations of specific illnesses, it’s difficult to protect or treat the people most at risk. 

This week, The Narwhal published two stories about how a lack of information on environmental contaminants turns health risk levels into a scary black box. They’re both about air pollution, which is often invisible. Citizens have no choice but to trust their governments to keep them safe. 

The first story is about ethylene oxide, an odourless gas used to sterilize medical equipment — and a known carcinogen.

To report on it, freelancer Leah Borts-Kuperman had to file an access to information request, then wait for a draft of an upcoming Health Canada report. When it showed up three months later, it revealed the federal government has absolutely no idea how much ethylene oxide is being used across the country.
 
A stylized image of an ethylene oxide molecule, made up of carbon, hydrogen and oxygen.
🔗 How much of this carcinogen is industry releasing into Canada’s air?
Companies self-report use of the chemical, and are only required to do so after using a certain amount that both federal and independent experts say is too high, given the known risks. And because the government has no idea exactly how much is being used, it also doesn’t know how much is being emitted into the air — whether it’s from sterilization facilities in Ontario or waste management companies in Alberta.

The second story, by freelancer Flannery Dean, is about whether COVID-19 investments in improving Ontario’s public school air quality have had long- or short-term benefits. It’s also about what happens when citizens do have enough information to advocate for their families

The pandemic clued everyone into what respiratory experts had known for a while: students face high risk of exposure to airborne viruses and pollution. And vaccines won’t address more frequent, intense wildfires. Cleaning the air that children breathe is a must — it would be great if we could start ASAP, given how many germs mine has already brought home this winter. 
 
🔗 Pandemic money was meant to clear the air in Ontario schools. Did it work?

Flannery spoke to epidemiologist Heather Hanwell, a parent who sustained a concussion at the beginning of the pandemic that kept her off work — giving her time to dig in, file  freedom of information requests and co-organize the group Ontario School Safety.  

Parent-led air quality advocates want consistent monitoring in public classrooms. They want to use that information to protect their kids. They want better heating, ventilation and air conditioning systems, which will also help mitigate the stress of extreme heat waves on little bodies. 

After years of work, school air quality advocates have seen some success. In October, the school board in Waterloo, Ont., ratified its first clean indoor air policy, probably the first in the province

It marks a baby step in one board’s willingness to make the conversation public. And more public information protects us all. 

Take care and take a deep breath, 

Denise Balkissoon
Executive editor 
Denise Balkissoon headshot

🤍 Become a member
A small Canadian flag is snagged in a barbed wire fence with grain fields and dark skies behind

a red bar

Are you tariffied, too?


We lied: of course we’re addressing the elephant in the room. It’s no secret everyone’s feeling a strange-yet-justified sense of patriotism — reluctantly, or not — given the whiplash-inducing news about tariffs. As Denise wrote, some have probably landed on the maple syrup of it all: buy Canadian products. And that’s a reasonable response; I, personally, am looking for Canadian alternatives to my beloved vegan chicken tenders (they’re packed with protein, please hit me up with suggestions!).

There’s also been a sudden focus on all the natural resources Canada has to offer. Just today, Natural Resources Minister Jonathan Wilkinson said the country should consider an east-west oil pipeline, even praising the beleaguered Trans Mountain pipeline for supplying oil to overseas markets. Quebec nixed a natural gas pipeline in 2021 because of its potential environmental impacts, but is now rethinking that decision

At The Narwhal, we’re following how cross-border politics is affecting conversations about the environment, food security, energy sovereignty and economics. We’ve already reported on whether Ontario Premier Doug Ford could follow through on his threats to disrupt the cross-border electricity grid, and Alberta Premier Danielle Smith’s visit to the U.S. to try and protect her province’s oil and gas profits. In Manitoba and Minnesota, we talked to those whom tariffs could hurt most: farmers, who already face razor-thin margins.

If you have any burning questions about the implications of changing Canada-U.S. relations on the natural world — or seriously, any recommendations for made-in-Canada, air-fryer-friendly vegan tenders — reply to this email, and we’ll do our best to keep you informed.

— Karan Saxena, audience engagement editor


a red bar

This week in The Narwhal

Map of North America showing red lines indicating pipeline routes and an image of grey pipelines superimposed on top of the map.
Canada helped TC Energy pitch natural gas to Mexico, calling it a climate solution
By Carl Meyer
Experts question Canada’s argument that a new pipeline is an ‘interim step’ to net zero.

READ MORE
Aerial view of a sprawling industrial site on a rugged coastal inlet with snow-capped mountains in the distance
Major B.C. LNG projects won’t have to pay for carbon emissions for 2 years, docs reveal
By Shannon Waters
READ MORE
Danielle Smith stands at a microphone, frowning, with an Alberta flag behind
Alberta cabinet ministers are fanning out to promote energy and hunting in the U.S.
By Drew Anderson
READ MORE
Hereditary Chief Eric Pelkey wears wool regalia and looks intently into the camera. He wears white wool regalia with brown accents. The sunlight comes from the fight and illuminates the soft wool, his right cheek and his white hair. The ocean in the background and the cloudy blue sky are awash with light.
W̱SÁNEĆ Hereditary Chiefs ‘deeply frustrated’ as feds boost commercial herring catch
By Steph Kwetásel’wet Wood
READ MORE
Trees are lightly dusted in snow on the shores of a lake on a grey day.
Microplastics are settling into Ontario cottage country lakes
By Brittany Welsh & Julian Aherne
READ MORE
Coal mine pollution: international inquiry details plan to investigate Canada, U.S. contamination
By Ainslie Cruickshank
READ MORE
A beaver drags a small branch with green foliage.

After you’re done scouring the neighbourhood for Canadian produce, why not tell a friend to sign up for The Narwhal’s newsletter? We’ve got Grade A coverage of the natural world in Canada — 100 per cent tariff-free!
View this e-mail in your browser

Sign up for this newsletter

Read about all the ways you can give to The Narwhal.

You are on this list because you signed up to receive The Narwhal’s newsletter. Unsubscribe from this list.

Update your email address

The Narwhal
Suite 634
185 - 911 Yates St.
Victoria, BC V8V 4Y9
Canada

Add us to your address book

Copyright © 2025 The Narwhal, all rights reserved.
 

See similar stories

Trump ‘doesn’t need’ Canada’s oil — and Alberta opens the Rockies for strip mining

Get the inside scoop on The Narwhal’s environment and climate reporting by signing up for our free newsletter. We’re back into an endless cycle of speculation...

Continue reading

Recent Posts

Our newsletter subscribers are the first to find out when we break a big story. Sign up for free →
An illustration, in yellow, of a computer, with an open envelope inside it with letter reading 'Breaking news.'
A popup that says "We need to protect our ... country, natural resources, climate, farmers, wildlife, rights, free press."
A popup that says "We need to protect our ... country, natural resources, climate, farmers, wildlife, rights, free press."