New public alert makes it easier to understand air quality conditions during wildfire events and year-round (2024)

In response to public feedback during last year’s wildfire events, Environment and Climate Change Canada launched improvements to its air quality forecast and alert system

June 5, 2024 – Ottawa, Ontario

Clean air is crucial to our daily health and wellbeing. While Canadians generally benefit from good air quality, seasonal increases in air pollutants, including smog and wildfire smoke, can significantly impact air quality conditions. Last year, Canada experienced its worst season of wildfire events on record, which impacted Canada’s air quality and increased health risks, especially for people with underlying health conditions.

In response to public feedback during last year’s wildfire events, Environment and Climate Change Canada launched improvements to its air quality forecast and alert system. A new Air Quality Advisory with a red banner notification is now a feature on weather.gc.ca and the WeatherCan application. The Air Quality Advisory is issued to notify the public when the Air Quality Health Index (AQHI) is above 10 for three or more hours during wildfire smoke events. This alert represents very high-risk levels, which are typically only experienced due to smoke from wildfire events, and will provide a clear visual cue to Canadians about the severity of the air quality. In addition, when wildfire smoke is greatly reducing air quality, the AQHI is calculated and reported hourly using only fine particulate matter (PM2.5), which is the dominant pollutant in wildfire smoke.

The AQHI is a scale used to help people understand what the quality of the air around them means for their health. Canadians can consult the AQHI to make informed decisions on how to protect themselves and loved ones from poor air quality. Prior to the implementation of the Air Quality Advisory, a Special Air Quality Statement was the only alert when the AQHI was seven or higher. The addition of the new advisory, which alerts Canadians when the AQHI exceeds a rating of 10 for three or more hours during wildfire smoke events, creates a two-tiered alerting system. Both alerts contain updated health messaging developed in collaboration with Health Canada.

In late July, Environment and Climate Change Canada will also be launching four new air quality forecast maps on its Wildfire Smoke Prediction System web page (FireWork). One will show smoke from forest and vegetation wildfires. The others will show total PM2.5, ozone, and nitrogen dioxide from wildfires. All maps will show how the pollutants are expected to move across Canada and North America. The online redesign will be more user friendly, allowing the public to easily access information on the predicted movement of key air pollutants. The new maps will also provide better colour distinction and gradation, improving their visual accessibility.

Clean Air Day, happening today, is an opportunity to learn about air pollution, its impacts on our health and what you can do to protect yourself.

“People in Canada take action every day to protect our air quality and their health. During wildfire events, air quality conditions change rapidly beyond anyone’s control as smoke plumes move across communities and the country. Improving the alert system supports our government’s commitment to inform Canadians about the adverse effects of wildfire smoke and to communicate how to reduce exposure.”
– The Honourable StevenGuilbeault, Minister of Environment and Climate Change

“It’s important to know how to limit our exposure to wildfire smoke and better protect our health. The first step is to check the Air Quality Health Index to identify the level of risk and pay attention to any air quality advisories and alerts. The higher the number, the greater the health risk. These updates will enhance this tool and help people in Canada make better decisions for their health when possible.”
– The Honourable Mark Holland, Minister of Health

“We are committed to protecting the health and safety of Canadians during wildfire events, which are becoming increasingly severe and frequent. Wildfires have profound implications, including altering or destroying natural habitats, financial losses from damage to infrastructure, property, and agricultural land, and increased exposure to wildfire smoke which can lead to respiratory problems. Improvements to the federal government’s air quality forecast and alert system are crucial in ensuring Canadians receive timely and accurate information to mitigate these impacts. These changes are part of our broader efforts to prepare for and respond to wildfires, ensuring Canadians can make informed decisions to protect themselves, their families, and their livelihoods.”
– The Honourable Jonathan Wilkinson, Minister of Energy and Natural Resources

“Ensuring the safety of Canadians includes providing the necessary tools and information for individuals to be responsive and make informed decisions. Wildfires are dynamic, but we remain committed to effectively notifying the public about all conditions that impact our safety and wellbeing. Clear and improved alerts about the severity of air quality help us to let you know when it may be time to take action for your safety.”
– The Honourable Harjit S. Sajjan, Minister of Emergency Preparedness

Kaitlin Power
Senior Press Secretary and Communications Advisor
Office of the Minister of Environment and Climate Change
819-230-1557
Kaitlin.Power@ec.gc.ca

Media Relations
Environment and Climate Change Canada
819-938-3338 or 1-844-836-7799 (toll-free)
media@ec.gc.ca

New public alert makes it easier to understand air quality conditions during wildfire events and year-round (2024)

FAQs

How do wildfires affect the air quality? ›

The intense heat generated by wildfires can cause the release of pollutants from the soil, such as mercury and other heavy metals. These pollutants can then be transported through the air and deposited in other areas, leading to environmental contamination.

How can we improve indoor air quality during wildfires? ›

Consider purchasing a portable air cleaner or high-efficiency HVAC Filter. You may decide to purchase a portable air cleaner or high-efficiency HVAC system filter as part of your preparation in order to help improve your indoor air quality during a wildfire smoke event.

How to protect yourself from bad air quality? ›

What can you do to stay safe from poor air quality?
  1. Reduce the time you spend outdoors when the AQI value is high. Also, reduce the intensity of outdoor activity. ...
  2. If you must go outdoors, consider wearing a mask. ...
  3. Keep your air indoors healthy by keeping the windows and doors closed.

What are the side effects of wildfire air pollution? ›

Health problems related to wildfire smoke exposure can be as mild as eye and respiratory tract irritation and as serious as worsening of heart and lung disease, including asthma, and even premature death.

What conditions make wildfires worse? ›

Wildfires require the alignment of a number of factors, including temperature, humidity, and the lack of moisture in fuels, such as trees, shrubs, grasses, and forest debris. All these factors have strong direct or indirect ties to climate variability and climate change.

How do wildfires affect people? ›

The fine particles in wildfire smoke pose the biggest threat to human health: They can cause burning eyes, respiratory illnesses like bronchitis, and aggravated symptoms for people with chronic heart or lung conditions. Smoke is not the only way fires impact air quality.

What are 3 strategies to improve indoor air quality? ›

There are three basic strategies to improve indoor air quality:
  • Source Control.
  • Improved Ventilation.
  • Air cleaners.

How to test air quality after a fire? ›

The most simple lab test involves a tape-lift sample. A clear piece of tape is placed on a suitable surface and the laboratory uses various forms of light microscopy to look for char particles, which are larger than smaller soot particles. To determine the presence of soot, a wipe sample is needed.

How can we protect the indoor air quality? ›

Install a ventilation system

Today's house insulation do not allow for a proper natural air ventilation. Indoor air pollutants becomes trapped inside your home! It is sometimes necessary to install systems —such as mechanical ventilation— that ensure constant air renewal.

Does drinking water help with bad air quality? ›

Fresh water keeps the lungs, bronchial tubes, and nasal passages moist, which allows for better breathing, and you'll be able to breathe cleaner air as a result.

What are 5 ways to improve air quality? ›

How we can improve air quality
  • Reduce Your Contribution. Manage waste - Minimize emissions from your waste–compost food and garden items, recycle non-organic trash if available, reuse grocery bags and dispose of remaining trash by local collection. ...
  • Minimize your exposure.

How can I breathe better in bad air quality? ›

Tips to Breathe Easier
  1. Avoid outdoor activities in the afternoons on warm days, when the risk of air pollution is highest.
  2. Avoid strenuous outdoor activities if the air is polluted.
  3. Reduce pollutants in your home.

What are the dangers of poor air quality? ›

Exposure to air pollution can affect everyone's health. When we breathe in air pollutants, they can enter our bloodstream and contribute to coughing or itchy eyes and cause or worsen many breathing and lung diseases, leading to hospitalizations, cancer, or even premature death.

Does poor air quality make you tired? ›

Occupants of homes with poor indoor air quality may complain of symptoms such as headache, eye irritation, fatigue, dry throat, sinus congestion, dizziness, and nausea.

How do forest fires affect the air quality? ›

In addition to contaminating the air with toxic pollutants, wildfires also simultaneously impact the climate by releasing large quantities of carbon dioxide and other greenhouse gases into the atmosphere.

Does wildfire smoke cool the atmosphere? ›

The Dixie Fire is currently California's largest blaze, destroying over 100 homes and leveling a historic town. In addition to creating a health hazard, dense wildfire smoke near the ground sometimes blocks enough light to reduce surface temperatures.

How does air pressure affect wildfires? ›

Most periods of critical fire weather occur in transition zones between high- and low-pressure systems, both at the surface and in the upper air. The surface pressure patterns of most concern are those associated with cold fronts and terrain-induced foehn winds.

Why does wildfire smoke smell like plastic? ›

According to Dr. Michael Fitzpatrick, a professor of medicine at Queen's University specializing in respirology, smoke exposed to sunlight and its UV rays can create a chemical reaction that results in the creation of benzene and formaldehyde, which smell like burning plastic.

What are the causes of the air pollution? ›

Household combustion devices, motor vehicles, industrial facilities and forest fires are common sources of air pollution. Pollutants of major public health concern include particulate matter, carbon monoxide, ozone, nitrogen dioxide and sulfur dioxide.

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