Japan · Aichi · 11 cities
Air quality in Aichi today The AQI right now, city by city
Right now, Toyohashi has the cleanest air of the 11 cities we track in Aichi (AQI 17, Good), and Handa the worst (AQI 50, Good). Seto has the most tree cover, at 36.6% — #18 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.
AQI 38
Average right now
Good
- cities tracked
- 11
- average tree cover
- 10.9%
- Japan: 16.4%
- worst air now: Handa
- 50
- cleanest air now: Toyohashi
- 17
Lower is better on the US EPA index: 0–50 is Good, above 300 is Hazardous. Measured by Airleaf, refreshed hourly.
Aichi · average AQI 38
Air quality today across Aichi, city by city
| Nagoya | 39Good | 9.0% | 61.8K | #134 of 207 |
|---|---|---|---|---|
| Toyota | 28Good | 8.0% | 68.8K | #144 of 207 |
| Okazaki | 33Good | 12.0% | 56.2K | #99 of 207 |
| Ichinomiya | 39Good | 2.7% | 85.5K | #200 of 207 |
| Toyohashi | 17Good | 5.2% | 75.4K | #170 of 207 |
| Kasugai | 42Good | 5.6% | 76.1K | #165 of 207 |
| Nishio | 39Good | 7.2% | 71.6K | #150 of 207 |
| Kariya | 47Good | 6.4% | 72.5K | #155 of 207 |
| Seto | 39Good | 36.6% | — | #18 of 207 |
| Handa | 50Good | 7.9% | 66.7K | #146 of 207 |
| Tōkai | 44Good | 19.4% | 33.3K | #55 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 Aichi lost?
Since 2001, Aichi has lost about 5,260 hectares of forest (about 7,400 football pitches): 2.5% of the forest it had in 2000. Most of it (51%) was deforestation, forest cleared for good, mainly for towns and roads.
- Forest lost since 2001
- 5,260 haabout 7,400 football pitches
- Share of its forest
- 2.5%of what there was in 2000
- Cleared for good
- 2,700 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 | 82 ha | 70 ha | 152 ha |
| 2002 | 96 ha | 64 ha | 159 ha |
| 2003 | 58 ha | 47 ha | 105 ha |
| 2004 | 136 ha | 128 ha | 264 ha |
| 2005 | 106 ha | 93 ha | 199 ha |
| 2006 | 109 ha | 94 ha | 203 ha |
| 2007 | 154 ha | 97 ha | 251 ha |
| 2008 | 178 ha | 115 ha | 293 ha |
| 2009 | 217 ha | 106 ha | 323 ha |
| 2010 | 136 ha | 109 ha | 245 ha |
| 2011 | 107 ha | 109 ha | 216 ha |
| 2012 | 130 ha | 76 ha | 206 ha |
| 2013 | 36 ha | 44 ha | 80 ha |
| 2014 | 95 ha | 52 ha | 146 ha |
| 2015 | 140 ha | 46 ha | 186 ha |
| 2016 | 123 ha | 106 ha | 229 ha |
| 2017 | 71 ha | 114 ha | 185 ha |
| 2018 | 139 ha | 150 ha | 289 ha |
| 2019 | 101 ha | 124 ha | 225 ha |
| 2020 | 98 ha | 119 ha | 217 ha |
| 2021 | 82 ha | 116 ha | 198 ha |
| 2022 | 90 ha | 160 ha | 249 ha |
| 2023 | 66 ha | 123 ha | 189 ha |
| 2024 | 92 ha | 133 ha | 225 ha |
| 2025 | 59 ha | 167 ha | 226 ha |
Forest loss has stayed about the same: about 217 hectares a year in 2021–2025, against 229 hectares a year in 2016–2020. The worst year was 2009, when about 323 hectares of forest were lost.
What is causing deforestation in Aichi?
- Loggingcan grow back43% · 2,270 ha
- Towns and roadscleared for good39% · 2,080 ha
- Mining and energycleared for good11% · 603 ha
Also: storms, floods and other natural causes, farms, pasture and plantations, wildfires, 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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