City report · Kansas, United States
Olathe Air quality today
Air quality in Olathe currently reads AQI 26 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 26
Good
- PM2.5, fine particles (µg/m³)
- 4.6
- tree cover
- 48.4%
- trees in this area
- 151K
- more trees needed
- 0
Measured across a 1.2 mi (2 km) radius around Downtown, Olathe, KS 66061, USA (4.9 sq mi), from a satellite image of Sep 2, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Olathe · AQI 26 (Good)
Olathe's tree count comes to 151,293 trees across 4.8 sq mi (12.51 km²) of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Olathe today: AQI 26, Good
Main pollutant: PM2.5 · Observed Nov 11, 08:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · Heritage Park, 4.9 mi (7.9 km) away
Health signal
Air quality is satisfactory for everyone.
PM2.5
4.6
PM10
15.0
NO₂
—
O₃
33.4
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
Over the last 7 days, the CAMS air-quality model put Olathe's daily AQI at 30 on average, from 10 on Nov 5 to an hourly peak of 93 on Nov 7.
Where Olathe stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Olathe: Healthy tree cover
48.4% tree cover against a 30% healthy-neighborhood target, across 4.8 sq mi (12.51 km²) of land.
Trees in this area
151,293
Target trees
151,293
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Olathe lost?
Since 2001, the area within 10 km of Olathe has lost about 1,100 acres (445 hectares) of forest (about 830 football fields): 9.8% of the forest it had in 2000. Most of it (96%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from August 2017 of a 5 × 5 km area about 7 km northwest of the city center.
- Forest lost since 2001
- 1,100 acres (445 ha)about 830 football fields
- Share of its forest
- 9.8%of what there was in 2000
- Cleared for good
- 1,050 acres (426 ha)deforestation: turned into farms, mines or towns
The worst year was 2018, when about 85 acres (34 hectares) of forest were lost.
Acres of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | 25 acres (10 ha) | under 1 ha | 27 acres (11 ha) |
| 2002 | 30 acres (12 ha) | under 1 ha | 30 acres (12 ha) |
| 2003 | 19 acres (8 ha) | under 1 ha | 20 acres (8 ha) |
| 2004 | 41 acres (16 ha) | 4 acres (2 ha) | 45 acres (18 ha) |
| 2005 | 65 acres (26 ha) | under 1 ha | 66 acres (27 ha) |
| 2006 | 80 acres (33 ha) | under 1 ha | 82 acres (33 ha) |
| 2007 | 22 acres (9 ha) | under 1 ha | 24 acres (10 ha) |
| 2008 | 34 acres (14 ha) | under 1 ha | 35 acres (14 ha) |
| 2009 | 30 acres (12 ha) | under 1 ha | 32 acres (13 ha) |
| 2010 | 8 acres (3 ha) | under 1 ha | 9 acres (4 ha) |
| 2011 | 9 acres (4 ha) | under 1 ha | 10 acres (4 ha) |
| 2012 | 12 acres (5 ha) | under 1 ha | 12 acres (5 ha) |
| 2013 | 12 acres (5 ha) | 3 acres (1 ha) | 16 acres (6 ha) |
| 2014 | 59 acres (24 ha) | 4 acres (2 ha) | 63 acres (26 ha) |
| 2015 | 40 acres (16 ha) | under 1 ha | 41 acres (16 ha) |
| 2016 | 74 acres (30 ha) | under 1 ha | 74 acres (30 ha) |
| 2017 | 54 acres (22 ha) | under 1 ha | 55 acres (22 ha) |
| 2018 | 83 acres (34 ha) | under 1 ha | 85 acres (34 ha) |
| 2019 | 58 acres (23 ha) | under 1 ha | 59 acres (24 ha) |
| 2020 | 43 acres (18 ha) | under 1 ha | 44 acres (18 ha) |
| 2021 | 64 acres (26 ha) | under 1 ha | 65 acres (26 ha) |
| 2022 | 67 acres (27 ha) | under 1 ha | 67 acres (27 ha) |
| 2023 | 36 acres (14 ha) | under 1 ha | 36 acres (15 ha) |
| 2024 | 61 acres (25 ha) | under 1 ha | 61 acres (25 ha) |
| 2025 | 28 acres (12 ha) | 15 acres (6 ha) | 43 acres (17 ha) |
What is causing deforestation around Olathe?
- Towns and roadscleared for good93% · 1,030 acres (415 ha)
- Mining and energycleared for good1.8% · 20 acres (8 ha)
- Unknown causescause unknown4.2% · 46 acres (19 ha)
Also: farms, pasture and plantations.
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
- 17,100 acres (6,940 ha)
- Forest in 2020
- 24,800 acres (10,000 ha)
- Overall change
- +7,620 acres (3,080 ha)more forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Olathe grew from about 17,100 acres (6,940 hectares) to 24,800 acres (10,000 hectares), a net gain of about 7,620 acres (3,080 hectares) (+44%). New forest grew on about 8,210 acres (3,320 hectares), while 593 acres (240 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 Olathe
Same 2 km radius, same index — so they compare directly.
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- Air quality
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- Independence42.0 km
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- Air quality
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- Topeka76.5 km
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- Air quality
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- Columbia215.1 km
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- Springfield228.2 km
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- Air quality
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Frequently asked
Questions about Olathe
What is the air quality (AQI) in Olathe right now?
The latest reading for Olathe shows an AQI of 26 (Good), measured Nov 11, 08:00 local time by the Heritage Park ground monitoring station, 4.9 mi (7.9 km) away, via OpenAQ. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Olathe today?
At AQI 26 (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.
What has the air quality in Olathe been like this week?
Over the last 7 days, the CAMS air-quality model put Olathe's daily AQI at 30 on average, from 10 on Nov 5 to an hourly peak of 93 on Nov 7. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Olathe lost since 2001?
Since 2001, the area within 10 km of Olathe has lost about 1,100 acres (445 hectares) of forest (about 830 football fields): 9.8% of the forest it had in 2000. Most of it (96%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Olathe grew from about 17,100 acres (6,940 hectares) to 24,800 acres (10,000 hectares), a net gain of about 7,620 acres (3,080 hectares) (+44%). New forest grew on about 8,210 acres (3,320 hectares), while 593 acres (240 hectares) were lost.
What is the tree count in Olathe?
Olathe has an estimated 151,293 trees across the 4.8 sq mi (12.51 km²) of land measured — 48.4% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Olathe need?
Olathe has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Olathe'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 1.2 mi (2 km) radius around Downtown; the tree count is an estimate derived from that cover.
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