When you’re choosing a neighbourhood to purchase a home in the Greater Toronto Area (GTA), you’re probably thinking about price, schools, commute times, transit, green space, and amenities. But there’s another factor that you should consider: outdoor air quality.
Air quality can vary considerably across Toronto and the GTA, and even within the same neighbourhood. Traffic, highways, industrial activity, airports, construction, and wildfire smoke can all affect local conditions. And unlike paint colour or kitchen cabinets, you can’t change your home’s location after you buy.
Air Quality Can Be Hyperlocal
Toronto research has found higher concentrations of traffic-related pollutants along major roads, in the downtown core, and around Highway 401. Homes set farther back from heavy traffic generally experience lower pollutant exposure, although conditions vary considerably by location.
That makes the specific property important. Two homes in the same general neighbourhood could have different exposure depending on their proximity to an arterial road, highway, rail corridor, industrial area, or major construction site.
So, when looking at a property, consider what’s around it, and not just what’s on the lot.
Air Quality Homework
Fortunately, buyers now have access to more information than they may realize.
Environment and Climate Change Canada’s Air Quality Health Index (AQHI) provides current conditions and forecasts, while community sensor networks such as PurpleAir offer more localized readings and historical PM2.5 data.
You can also research potential pollution sources around a property. The City of Toronto’s ChemTRAC data identifies facilities reporting certain chemical releases, while municipal planning tools can help you identify future development that could bring additional construction or traffic.
When researching a property for air quality factors, consider:
- Distance from highways and major arterial roads
- Nearby industrial or commercial facilities
- Airport flight paths and rail corridors
- Current and planned construction
- Tree canopy, parks, and other green space
- Real-time and historical air quality readings
Context is also important. Historical information is particularly useful because checking conditions on one clear Saturday afternoon won’t necessarily tell you what the area is like during weekday rush hour, wildfire smoke events, or different seasons.
Visit the Neighbourhood With Air Quality in Mind
It’s also important to vary your visit times and days. Visit at different times and pay attention to traffic volumes, construction dust, visible haze, and unusual odours. If you’re considering a home near a major road, try visiting during rush hour rather than relying solely on what you experience during a weekend showing when traffic is less congested.
Consider how you plan to use the neighbourhood, too. If you expect to spend a lot of time walking, running, cycling, taking children to a nearby park, or simply enjoying your backyard or balcony, outdoor conditions are likely going to be a bigger factor in your decision.
Don’t Forget the Home Itself
Neighbourhood air quality and indoor air quality aren’t the same thing, but they can be connected because outdoor pollutants can make their way inside.
As a result, the home’s ventilation, filtration, and condition deserve consideration. Depending on the property, buyers may also want to investigate potential indoor concerns such as mould, volatile organic compounds, and radon.
Add Air Quality to Your Location Checklist
But air quality doesn’t need to determine where everyone buys, and proximity to a highway or busy street doesn’t automatically make a property a poor choice. GTA buyers are already balancing location, budget, commute, housing type, and lifestyle priorities.
The important thing is to know what you’re buying into. Researching neighbourhood air quality alongside schools, transit, development plans, and other location factors gives you one more piece of information to make an informed decision, especially because location-related environmental conditions can be much harder to change after you’ve moved in.
Are you ready to move to the next stage? Let’s chat. Send me an email (hillary@hillarylane.ca) or text/phone (416-882-4707).
