Japan · Ibaraki · 8 cities
Air quality in Ibaraki today The AQI right now, city by city
Right now, Hitachi has the cleanest air of the 8 cities we track in Ibaraki (AQI 17, Good), and Tsuchiura the worst (AQI 73, Moderate). Hitachi has the most tree cover, at 34.5% — #20 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 41
Average right now
Good
- cities tracked
- 8
- average tree cover
- 14.9%
- Japan: 16.4%
- worst air now: Tsuchiura
- 73
- cleanest air now: Hitachi
- 17
Lower is better on the US EPA index: 0–50 is Good, above 300 is Hazardous. Measured by Airleaf, refreshed hourly.
Ibaraki · average AQI 41
Air quality today across Ibaraki, city by city
| Mito | 28Good | 14.2% | 49.6K | #81 of 207 |
|---|---|---|---|---|
| Tsukuba | 73Moderate | 22.4% | 23.9K | #47 of 207 |
| Hitachi | 17Good | 34.5% | — | #20 of 207 |
| Hitachi-Naka | 28Good | 11.5% | 58.1K | #103 of 207 |
| Tsuchiura | 73Moderate | 9.2% | 59.7K | #129 of 207 |
| Koga | 40Good | 10.3% | 61.9K | #121 of 207 |
| Toride | 33Good | 11.6% | 56.4K | #102 of 207 |
| Chikusei | 37Good | 5.7% | 76.3K | #164 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 Ibaraki lost?
Since 2001, Ibaraki has lost about 13,600 hectares of forest (about 19,000 football pitches): 6.1% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 3,470 hectares (26%) was deforestation: forest cleared for good for farms, mines or towns.
- Forest lost since 2001
- 13,600 haabout 19,000 football pitches
- Share of its forest
- 6.1%of what there was in 2000
- Cleared for good
- 3,470 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 | 87 ha | 201 ha | 288 ha |
| 2002 | 89 ha | 210 ha | 299 ha |
| 2003 | 74 ha | 124 ha | 197 ha |
| 2004 | 75 ha | 111 ha | 186 ha |
| 2005 | 48 ha | 124 ha | 172 ha |
| 2006 | 175 ha | 295 ha | 470 ha |
| 2007 | 53 ha | 255 ha | 308 ha |
| 2008 | 66 ha | 205 ha | 271 ha |
| 2009 | 155 ha | 274 ha | 429 ha |
| 2010 | 69 ha | 386 ha | 455 ha |
| 2011 | 44 ha | 192 ha | 236 ha |
| 2012 | 170 ha | 755 ha | 925 ha |
| 2013 | 37 ha | 338 ha | 375 ha |
| 2014 | 84 ha | 286 ha | 369 ha |
| 2015 | 149 ha | 372 ha | 521 ha |
| 2016 | 369 ha | 560 ha | 929 ha |
| 2017 | 205 ha | 507 ha | 712 ha |
| 2018 | 281 ha | 549 ha | 830 ha |
| 2019 | 213 ha | 579 ha | 792 ha |
| 2020 | 219 ha | 596 ha | 815 ha |
| 2021 | 225 ha | 576 ha | 801 ha |
| 2022 | 146 ha | 722 ha | 868 ha |
| 2023 | 154 ha | 603 ha | 757 ha |
| 2024 | 148 ha | 614 ha | 762 ha |
| 2025 | 139 ha | 676 ha | 815 ha |
Forest loss has stayed about the same: about 801 hectares a year in 2021–2025, against 816 hectares a year in 2016–2020. The worst year was 2016, when about 929 hectares of forest were lost.
What is causing deforestation in Ibaraki?
- Loggingcan grow back72% · 9,720 ha
- Towns and roadscleared for good21% · 2,900 ha
- Mining and energycleared for good3.2% · 441 ha
Also: farms, pasture and plantations, 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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