Â鶹ӰÊÓ

Skip to main content

How to interpret Environment Canada's Air Quality Health Index ratings

Share

Environment Canada has been advising people to check the Air Quality Health Index as wildfire smoke blanketed large swaths of Canada in recent days. Even without wildfires, the index can be a useful tool to monitor air pollution in your community on any given day.

HOW DO I FIND OUT MY LOCAL AIR QUALITY READING?

Environment Canada's air quality index is at . You can take a look at the ratings in communities across your province or territory.

A rating of 1-3 is low risk, 4-6 is moderate risk, 7-10 is high risk and over 10 is very high risk.

The risk designations can change regularly in the same community, Environment Canada says, so it's important to keep checking the air quality forecast.

WHAT DO THE RISK RATINGS MEAN?

Environment Canada, in consultation with Health Canada, has different recommendations for people especially at risk of suffering health problems when exposed to poor air quality versus the general population.

"At risk" people include those with respiratory issues such as asthma, chronic obstructive pulmonary disease (COPD), pneumonia, as well those with as heart disease. Infants, young children, pregnant people and elderly people are also considered at higher risk.

Here's how to interpret the Air Quality Health Index guidance:

"Low risk" means everyone can safely be outdoors.

"Moderate risk" means the general population don't need to change their usual outdoor activities unless they have symptoms such as coughing and throat irritation. But people at risk should "consider reducing or rescheduling strenuous activities outdoors."

"High risk" means those at risk should reduce or reschedule strenuous activities outdoors. Children and seniors should "take it easy." The general population should consider reducing or rescheduling strenuous activities if they start coughing or their throats become irritated.

"Very high risk" means everyone should reduce or reschedule strenuous activities. People at risk should avoid outdoor activities altogether.

This report by The Canadian Press was first published June 9, 2023.

Canadian Press health coverage receives support through a partnership with the Canadian Medical Association. CP is solely responsible for this content.

CTVNews.ca Top Stories

Unusual flippered feet are making their way into the Saint Lawrence River this weekend. Led by underwater explorer and filmmaker Nathalie Lasselin, volunteer divers are combing the riverbed near Beauharnois in Montérégie to remove hundreds of tires that have been polluting the aquatic environment for decades.

A body has been found in the vicinity where a woman went missing on the Ottawa River near Pembroke, Ont. while kayaking Tuesday night, according to the Ontario Provincial Police (OPP).

A man is facing numerous drug trafficking charges after Dufferin OPP seized a large assortment of drugs and weapons in Orangeville earlier this week.

Local Spotlight

Cole Haas is more than just an avid fan of the F.W. Johnson Wildcats football team. He's a fixture on the sidelines, a source of encouragement, and a beloved member of the team.

Getting a photograph of a rainbow? Common. Getting a photo of a lightning strike? Rare. Getting a photo of both at the same time? Extremely rare, but it happened to a Manitoba photographer this week.

An anonymous business owner paid off the mortgage for a New Brunswick not-for-profit.

They say a dog is a man’s best friend. In the case of Darren Cropper, from Bonfield, Ont., his three-year-old Siberian husky and golden retriever mix named Bear literally saved his life.

A growing group of brides and wedding photographers from across the province say they have been taken for tens of thousands of dollars by a Barrie, Ont. wedding photographer.

Paleontologists from the Royal B.C. Museum have uncovered "a trove of extraordinary fossils" high in the mountains of northern B.C., the museum announced Thursday.

The search for a missing ancient 28-year-old chocolate donkey ended with a tragic discovery Wednesday.

The Royal Canadian Mounted Police is celebrating an important milestone in the organization's history: 50 years since the first women joined the force.

It's been a whirlwind of joyful events for a northern Ontario couple who just welcomed a baby into their family and won the $70 million Lotto Max jackpot last month.