City report · Mie, Japan
Matsusaka Air quality today
Air quality in Matsusaka currently reads AQI 28 (Good): Air quality is satisfactory for everyone.
AQI 28
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 5.0
- tree cover
- 4.2%
- trees in this area
- 13.2K
- more trees needed
- 81.1K
Measured across a 2 km radius around 1 Ku Asahimachi, Matsusaka, Mie 515-0003, Japan (12.57 km²), from a satellite image of Aug 2, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Matsusaka · AQI 28 (Good)
Matsusaka's tree count comes to 13,195 trees across 12.57 km², 26 points below the 30% tree-cover level considered healthy for this area, so roughly 81,053 more trees would close the gap.
Air quality detail
Air quality in Matsusaka today: AQI 28, Good
Main pollutant: PM2.5 · Observed Nov 12, 01:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · 津市久居野村町５６０, 11.9 km away · median of 6 stations
Health signal
Air quality is satisfactory for everyone.
PM2.5
5.0
PM10
—
NO₂
5.6
O₃
—
SO₂
0.0
CO
—
Data: OpenAQ · Ministry of the Environment Air Pollutant Wide Area Monitoring System
- 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 Matsusaka's daily AQI at 35 on average, from 25 on Nov 11 to an hourly peak of 70 on Nov 6.
Where Matsusaka stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Matsusaka: Critically low
4.2% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
13,195
Target trees
94,248
More trees needed
81,053
CO₂ if planted / yr
1,783 t
Deforestation · 2001–2025
How much forest has Matsusaka lost?
Since 2001, the area within 10 km of Matsusaka has lost about 248 hectares of forest (about 350 football pitches): 3.8% of the forest it had in 2000. Most of it (92%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from August 2017 of a 5 × 5 km area about 6 km south of the city center.
- Forest lost since 2001
- 248 haabout 350 football pitches
- Share of its forest
- 3.8%of what there was in 2000
- Cleared for good
- 229 hadeforestation: turned into farms, mines or towns
The worst year was 2008, when about 26 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 | 5 ha | 3 ha | 8 ha |
| 2002 | 7 ha | under 1 ha | 7 ha |
| 2003 | 10 ha | under 1 ha | 11 ha |
| 2004 | 7 ha | 3 ha | 9 ha |
| 2005 | 6 ha | under 1 ha | 6 ha |
| 2006 | 17 ha | under 1 ha | 18 ha |
| 2007 | 22 ha | under 1 ha | 22 ha |
| 2008 | 24 ha | 2 ha | 26 ha |
| 2009 | 8 ha | under 1 ha | 9 ha |
| 2010 | 6 ha | under 1 ha | 7 ha |
| 2011 | 6 ha | under 1 ha | 6 ha |
| 2012 | 6 ha | under 1 ha | 7 ha |
| 2013 | 1 ha | under 1 ha | 1 ha |
| 2014 | 9 ha | under 1 ha | 10 ha |
| 2015 | 11 ha | under 1 ha | 12 ha |
| 2016 | 14 ha | 2 ha | 15 ha |
| 2017 | 21 ha | under 1 ha | 22 ha |
| 2018 | 14 ha | under 1 ha | 15 ha |
| 2019 | 15 ha | under 1 ha | 16 ha |
| 2020 | 6 ha | under 1 ha | 6 ha |
| 2021 | 1 ha | under 1 ha | 1 ha |
| 2022 | 4 ha | under 1 ha | 4 ha |
| 2023 | 4 ha | under 1 ha | 4 ha |
| 2024 | 3 ha | under 1 ha | 3 ha |
| 2025 | 4 ha | 1 ha | 6 ha |
What is causing deforestation around Matsusaka?
- Towns and roadscleared for good69% · 172 ha
- Mining and energycleared for good14% · 35 ha
- Farms, pasture and plantationscleared for good9% · 22 ha
Also: logging, 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
- 7,170 ha
- Forest in 2020
- 7,060 ha
- Overall change
- −114 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Matsusaka stayed about the same size, at about 7,060 hectares: new forest grew on about 113 hectares, and about 228 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
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Frequently asked
Questions about Matsusaka
What is the air quality (AQI) in Matsusaka right now?
The latest reading for Matsusaka shows an AQI of 28 (Good), measured Nov 12, 01:00 local time by 6 ground monitoring stations via OpenAQ (the median of their readings; the nearest is 津市久居野村町５６０, 11.9 km away). The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Matsusaka today?
At AQI 28 (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 Matsusaka been like this week?
Over the last 7 days, the CAMS air-quality model put Matsusaka's daily AQI at 35 on average, from 25 on Nov 11 to an hourly peak of 70 on Nov 6. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Matsusaka lost since 2001?
Since 2001, the area within 10 km of Matsusaka has lost about 248 hectares of forest (about 350 football pitches): 3.8% of the forest it had in 2000. Most of it (92%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Matsusaka stayed about the same size, at about 7,060 hectares: new forest grew on about 113 hectares, and about 228 hectares were lost.
What is the tree count in Matsusaka?
Matsusaka has an estimated 13,195 trees across the 12.57 km² measured — 4.2% tree cover, 26 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Matsusaka need?
Matsusaka needs roughly 81,053 more trees to close a 26-point shortfall against its 30% tree-cover target — about 1,783 t of extra CO₂ absorbed per year once grown.
How are Matsusaka's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near 1 Ku Asahimachi, 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 1 Ku Asahimachi; the tree count is an estimate derived from that cover.
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