Japan · Kagawa · 2 cities
Air quality in Kagawa today The AQI right now, city by city
Right now, Takamatsu has the cleanest air of the 2 cities we track in Kagawa (AQI 22, Good), and Marugame the worst (AQI 28, Good). Takamatsu has the most tree cover, at 10.9% — #113 of 207 cities measured in Japan.
Every city is measured the same way, over the same 2 km around its center: the air quality right now, from ground stations where there are any, and its tree cover.
- cities tracked
- 2
- average tree cover
- 8.5%
- Japan: 16.4%
- worst air now: Marugame
- 28
- cleanest air now: Takamatsu
- 22
Lower is better on the US EPA index: 0–50 is Good, above 300 is Hazardous. Measured by Airleaf, refreshed hourly.
Kagawa
Air quality today across Kagawa, city by city
| Takamatsu | 22Good | 10.9% | 59.7K | #113 of 207 |
|---|---|---|---|---|
| Marugame | 28Good | 6.1% | 68.3K | #162 of 207 |
Air quality is the US AQI from ground monitoring stations via OpenAQ where available, otherwise the Open-Meteo / CAMS model, refreshed hourly. Tree cover is measured within 2 km of each city center from Sentinel-2 imagery; the rank compares every city measured in Japan.
Deforestation · 2001–2025
How much forest has Kagawa lost?
Since 2001, Kagawa has lost about 1,940 hectares of forest (about 2,700 football pitches): 2% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 592 hectares (31%) was deforestation: forest cleared for good for farms, mines or towns.
- Forest lost since 2001
- 1,940 haabout 2,700 football pitches
- Share of its forest
- 2%of what there was in 2000
- Cleared for good
- 592 hadeforestation: turned into farms, mines or towns
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | 18 ha | 42 ha | 60 ha |
| 2002 | 33 ha | 45 ha | 78 ha |
| 2003 | 28 ha | 35 ha | 63 ha |
| 2004 | 40 ha | 91 ha | 131 ha |
| 2005 | 33 ha | 56 ha | 89 ha |
| 2006 | 25 ha | 27 ha | 52 ha |
| 2007 | 59 ha | 75 ha | 134 ha |
| 2008 | 23 ha | 57 ha | 80 ha |
| 2009 | 26 ha | 80 ha | 106 ha |
| 2010 | 15 ha | 60 ha | 75 ha |
| 2011 | 18 ha | 39 ha | 56 ha |
| 2012 | 23 ha | 70 ha | 93 ha |
| 2013 | 14 ha | 30 ha | 43 ha |
| 2014 | 9 ha | 44 ha | 52 ha |
| 2015 | 12 ha | 49 ha | 61 ha |
| 2016 | 24 ha | 66 ha | 89 ha |
| 2017 | 20 ha | 45 ha | 65 ha |
| 2018 | 24 ha | 56 ha | 79 ha |
| 2019 | 18 ha | 65 ha | 83 ha |
| 2020 | 20 ha | 46 ha | 66 ha |
| 2021 | 23 ha | 54 ha | 78 ha |
| 2022 | 31 ha | 63 ha | 94 ha |
| 2023 | 29 ha | 47 ha | 76 ha |
| 2024 | 21 ha | 47 ha | 68 ha |
| 2025 | 8 ha | 59 ha | 66 ha |
Forest loss has stayed about the same: about 76 hectares a year in 2021–2025, against 77 hectares a year in 2016–2020. The worst year was 2007, when about 134 hectares of forest were lost.
What is causing deforestation in Kagawa?
- Loggingcan grow back63% · 1,220 ha
- Towns and roadscleared for good25% · 491 ha
- Mining and energycleared for good3.6% · 71 ha
Also: farms, pasture and plantations, wildfires, storms, floods and other natural causes, unknown causes.
Causes for 2025 are estimates, based on what caused forest loss in the same places up to 2024.
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. How it's measured
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