City report · Ontario, Canada
Kingston Air quality today
Air quality in Kingston currently reads AQI 11 (Good): Air quality is satisfactory for everyone.
AQI 11
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 2.0
- tree cover
- 28.0%
- trees in this area
- 41.7K
- more trees needed
- 3.0K
Measured across a 2 km radius around Kingston, ON, Canada (12.57 km²), from a satellite image of Sep 11, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Kingston · AQI 11 (Good)
Kingston's tree count comes to 41,695 trees across 5.96 km² of land, 2 points below the 30% tree-cover level considered healthy for this area, so roughly 2,978 more trees would close the gap.
Air quality detail
Air quality in Kingston today: AQI 11, Good
Main pollutant: PM2.5 · Observed Nov 11, 12:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · Kingston, 3.4 km away
Health signal
Air quality is satisfactory for everyone.
PM2.5
2.0
PM10
—
NO₂
3.8
O₃
23.6
SO₂
—
CO
—
Data: OpenAQ · AirNow
- Outdoor exercise
- A good day to be active outside
- Windows
- Open them to air the house
- Mask
- Not needed
- Air purifier
- Not needed
This is the US EPA AQI. How it differs from Canada's AQHI
Where Kingston stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Kingston: Below target
28.0% tree cover against a 30% healthy-neighborhood target, across 5.96 km² of land.
Trees in this area
41,695
Target trees
44,673
More trees needed
2,978
CO₂ if planted / yr
65.5 t
Deforestation · 2001–2025
How much forest has Kingston lost?
Since 2001, the area within 10 km of Kingston has lost about 135 hectares of forest (about 190 football pitches): 2.4% of the forest it had in 2000. Most of it (91%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from September 2017 of a 5 × 5 km area about 7 km northwest of the city center.
- Forest lost since 2001
- 135 haabout 190 football pitches
- Share of its forest
- 2.4%of what there was in 2000
- Cleared for good
- 123 hadeforestation: turned into farms, mines or towns
The worst year was 2022, when about 15 hectares of forest were lost.
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | 2 ha | under 1 ha | 2 ha |
| 2002 | 3 ha | 1 ha | 4 ha |
| 2003 | 2 ha | under 1 ha | 2 ha |
| 2004 | 12 ha | under 1 ha | 12 ha |
| 2005 | 8 ha | under 1 ha | 8 ha |
| 2006 | under 1 ha | 6 ha | 7 ha |
| 2007 | 5 ha | under 1 ha | 5 ha |
| 2008 | 8 ha | under 1 ha | 9 ha |
| 2009 | 6 ha | under 1 ha | 7 ha |
| 2010 | 3 ha | under 1 ha | 3 ha |
| 2011 | under 1 ha | under 1 ha | under 1 ha |
| 2012 | 7 ha | under 1 ha | 7 ha |
| 2013 | 5 ha | under 1 ha | 5 ha |
| 2014 | 3 ha | under 1 ha | 3 ha |
| 2015 | 5 ha | under 1 ha | 5 ha |
| 2016 | 3 ha | under 1 ha | 3 ha |
| 2017 | 10 ha | under 1 ha | 10 ha |
| 2018 | 7 ha | under 1 ha | 7 ha |
| 2019 | 14 ha | under 1 ha | 14 ha |
| 2020 | 2 ha | under 1 ha | 3 ha |
| 2021 | under 1 ha | under 1 ha | under 1 ha |
| 2022 | 14 ha | under 1 ha | 15 ha |
| 2023 | 3 ha | under 1 ha | 3 ha |
| 2024 | under 1 ha | under 1 ha | under 1 ha |
| 2025 | under 1 ha | under 1 ha | 1 ha |
What is causing deforestation around Kingston?
- Towns and roadscleared for good89% · 121 ha
- Loggingcan grow back4.6% · 6 ha
- Farms, pasture and plantationscleared for good1.1% · 2 ha
Also: unknown causes.
Causes for 2025 are estimates, based on what caused forest loss in the same places up to 2024.
Forest gained and lost, 2000–2020
- Forest in 2000
- 5,360 ha
- Forest in 2020
- 5,960 ha
- Overall change
- +598 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Kingston grew from about 5,360 hectares to 5,960 hectares, a net gain of about 598 hectares (+11%). New forest grew on about 729 hectares, while 131 hectares were lost.
These 2000 and 2020 maps, from the University of Maryland, count any land with trees taller than 5 m as forest, including plantations and orchards. Forest that was cut or burned and had grown back by 2020 counts in both years, so the loss here is smaller than the yearly figures.
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. Forest gained and lost 2000–2020: Potapov et al. 2022, UMD GLAD Global Land Cover and Land Use Change, CC BY 4.0. Images: contains modified Copernicus Sentinel data. How it's measured
In the same region
Measured cities near Kingston
Same 2 km radius, same index — so they compare directly.
Build your own
Compare Kingston with anywhere
This place
Kingston
Use this data
Put Kingston's numbers on your site
Free to embed. Updates itself as the measurement refreshes.
Frequently asked
Questions about Kingston
What is the air quality (AQI) in Kingston right now?
The latest reading for Kingston shows an AQI of 11 (Good), measured Nov 11, 12:00 local time by the Kingston ground monitoring station, 3.4 km away, via OpenAQ. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Kingston today?
At AQI 11 (Good): a good day to be active outside. Windows: open them to air the house. Masks: not needed. The reading changes through the day, so check again before a long run or ride.
Is Kingston'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 Kingston lost since 2001?
Since 2001, the area within 10 km of Kingston has lost about 135 hectares of forest (about 190 football pitches): 2.4% of the forest it had in 2000. Most of it (91%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Kingston grew from about 5,360 hectares to 5,960 hectares, a net gain of about 598 hectares (+11%). New forest grew on about 729 hectares, while 131 hectares were lost.
What is the tree count in Kingston?
Kingston has an estimated 41,695 trees across the 5.96 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 Kingston need?
Kingston needs roughly 2,978 more trees to close a 2-point shortfall against its 30% tree-cover target — about 65.5 t of extra CO₂ absorbed per year once grown.
How are Kingston's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Kingston, 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 Kingston; the tree count is an estimate derived from that cover.
See your own area
What does your neighborhood look like?
Pick any point and radius to get the same air-quality and tree-cover breakdown.
Check my address