City report · Saskatchewan, Canada
Regina Air quality today
Air quality in Regina currently reads AQI 72 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Air quality right now
AQI 72
Moderate
- PM2.5, fine particles (µg/m³)
- 20.4
- tree cover
- 28.0%
- trees in this area
- 86.3K
- more trees needed
- 6.2K
Measured across a 2 km radius around Downtown, Regina, SK, Canada (12.57 km²), from a satellite image of Sep 5, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Regina · AQI 72 (Moderate)
Regina's tree count comes to 86,293 trees across 12.33 km² of land, 2 points below the 30% tree-cover level considered healthy for this area, so roughly 6,164 more trees would close the gap.
Air quality detail
Air quality in Regina today: AQI 72, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 10:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · Regina, Saskatchewan , 3.1 km away · median of 2 stations
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
20.4
PM10
—
NO₂
30.1
O₃
11.8
SO₂
—
CO
—
Data: OpenAQ · AirGradient, AirNow, David G. Reineke
- Outdoor exercise
- Fine for most people; unusually sensitive people should take long or hard exercise easier
- Windows
- Fine to open; close them if you are sensitive to pollution
- Mask
- Not needed for most people
- Air purifier
- Worth running if you are sensitive
Over the last 7 days, the CAMS air-quality model put Regina's daily AQI at 16 on average, from 7 on Nov 7 to an hourly peak of 52 on Nov 5.
This is the US EPA AQI. How it differs from Canada's AQHI
Where Regina stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Regina: Below target
28.0% tree cover against a 30% healthy-neighborhood target, across 12.33 km² of land.
Trees in this area
86,293
Target trees
92,457
More trees needed
6,164
CO₂ if planted / yr
135.6 t
Deforestation · 2001–2025
How much forest has Regina lost?
There was very little forest around Regina in 2000, about 38 hectares, and about 2 hectares of it has been lost since. Only fairly dense woodland counts as forest in these maps, so scattered street and garden trees don't show up here.
2017: satellite photo from September 2017 of a 5 × 5 km area in the city center.
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | under 1 ha | under 1 ha | under 1 ha |
| 2002 | under 1 ha | under 1 ha | under 1 ha |
| 2003 | under 1 ha | under 1 ha | under 1 ha |
| 2004 | under 1 ha | under 1 ha | under 1 ha |
| 2005 | under 1 ha | under 1 ha | under 1 ha |
| 2006 | under 1 ha | under 1 ha | under 1 ha |
| 2007 | under 1 ha | under 1 ha | under 1 ha |
| 2008 | under 1 ha | under 1 ha | under 1 ha |
| 2009 | under 1 ha | under 1 ha | under 1 ha |
| 2010 | under 1 ha | under 1 ha | under 1 ha |
| 2011 | under 1 ha | under 1 ha | under 1 ha |
| 2012 | under 1 ha | under 1 ha | under 1 ha |
| 2013 | under 1 ha | under 1 ha | under 1 ha |
| 2014 | under 1 ha | under 1 ha | under 1 ha |
| 2015 | under 1 ha | under 1 ha | under 1 ha |
| 2016 | under 1 ha | under 1 ha | under 1 ha |
| 2017 | under 1 ha | under 1 ha | under 1 ha |
| 2018 | under 1 ha | under 1 ha | under 1 ha |
| 2019 | under 1 ha | under 1 ha | under 1 ha |
| 2020 | under 1 ha | under 1 ha | under 1 ha |
| 2021 | under 1 ha | under 1 ha | under 1 ha |
| 2022 | under 1 ha | under 1 ha | under 1 ha |
| 2023 | under 1 ha | under 1 ha | under 1 ha |
| 2024 | under 1 ha | under 1 ha | under 1 ha |
| 2025 | under 1 ha | under 1 ha | under 1 ha |
What is causing deforestation around Regina?
- Farms, pasture and plantationscleared for good40% · under 1 ha
- Unknown causescause unknown60% · 1 ha
Causes for 2025 are estimates, based on what caused forest loss in the same places up to 2024.
These figures cover everything within 10 km of the city center, a wider area than the report above, because forest is usually lost at a city's edges.
Source: Hansen/UMD/Google/USGS/NASA, Global Forest Change (GFC-2025-v1.13); causes: WRI/Google DeepMind drivers of forest loss; both CC BY 4.0, summed by Airleaf for each area. Images: contains modified Copernicus Sentinel data. How it's measured
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Frequently asked
Questions about Regina
What is the air quality (AQI) in Regina right now?
The latest reading for Regina shows an AQI of 72 (Moderate), measured Nov 11, 10:00 local time by 2 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Regina, Saskatchewan , 3.1 km away). The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Regina today?
At AQI 72 (Moderate): fine for most people; unusually sensitive people should take long or hard exercise easier. Windows: fine to open; close them if you are sensitive to pollution. Masks: not needed for most people. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Regina been like this week?
Over the last 7 days, the CAMS air-quality model put Regina's daily AQI at 16 on average, from 7 on Nov 7 to an hourly peak of 52 on Nov 5. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
Is Regina's AQI the same as Canada's AQHI?
No. Airleaf shows the US EPA Air Quality Index (AQI), the scale used by IQAir and most air-quality apps. Canada's Air Quality Health Index (AQHI), from Environment and Climate Change Canada, runs from 1 to 10 and above: 1–3 low risk, 4–6 moderate, 7–10 high and over 10 very high. It combines ozone, nitrogen dioxide and fine particles into one health-risk number, so it isn't a converted AQI, and the two can move differently, especially in wildfire smoke.
How much forest has the area around Regina lost since 2001?
There was very little forest around Regina in 2000, about 38 hectares, and about 2 hectares of it has been lost since. Only fairly dense woodland counts as forest in these maps, so scattered street and garden trees don't show up here.
What is the tree count in Regina?
Regina has an estimated 86,293 trees across the 12.33 km² of land measured — 28.0% tree cover, 2 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Regina need?
Regina needs roughly 6,164 more trees to close a 2-point shortfall against its 30% tree-cover target — about 135.6 t of extra CO₂ absorbed per year once grown.
How are Regina's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Downtown, via OpenAQ; the 7-day trend is the Open-Meteo / CAMS model's estimate. Tree cover is measured from Sentinel-2 L2A (ESA Copernicus) via Earth Search satellite imagery at 10 m detail across a 2 km radius around Downtown; the tree count is an estimate derived from that cover.
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