China · Hainan · 8 cities
Air quality in Hainan today The AQI right now, city by city
Right now, Wuzhishan has the cleanest air of the 8 cities we track in Hainan (AQI 56, Moderate), and Wenchang the worst (AQI 99, Moderate). Wuzhishan has the most tree cover, at 69.9% — #7 of 639 cities measured in China.
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 75
Average right now
Moderate
- cities tracked
- 8
- average tree cover
- 39.5%
- China: 22.9%
- worst air now: Wenchang
- 99
- cleanest air now: Wuzhishan
- 56
Lower is better on the US EPA index: 0–50 is Good, above 300 is Hazardous. Measured by Airleaf, refreshed hourly.
Hainan · average AQI 75
Air quality today across Hainan, city by city
| Haikou | 73Moderate | 23.4% | 20.2K | #249 of 639 |
|---|---|---|---|---|
| Sanya | 64Moderate | 39.3% | — | #73 of 639 |
| Wenchang | 99Moderate | 64.9% | — | #10 of 639 |
| Wanning | 75Moderate | 34.6% | — | #108 of 639 |
| Qionghai | 80Moderate | 34.3% | — | #109 of 639 |
| Basuo | 69Moderate | 21.3% | 27.1K | #288 of 639 |
| Nada | 84Moderate | 28.0% | 6.3K | #177 of 639 |
| Wuzhishan | 56Moderate | 69.9% | — | #7 of 639 |
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 China.
Deforestation · 2001–2025
How much forest has Hainan lost?
Since 2001, Hainan has lost about 371,000 hectares of forest (about 3,700 km²): 21% of the forest it had in 2000. Most of it (70%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.
- Forest lost since 2001
- 371,000 haabout 3,700 km²
- Share of its forest
- 21%of what there was in 2000
- Cleared for good
- 260,000 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 | 7,090 ha | 2,100 ha | 9,190 ha |
| 2002 | 4,070 ha | 1,230 ha | 5,300 ha |
| 2003 | 4,860 ha | 2,260 ha | 7,120 ha |
| 2004 | 9,250 ha | 4,850 ha | 14,100 ha |
| 2005 | 8,220 ha | 5,010 ha | 13,200 ha |
| 2006 | 5,910 ha | 4,010 ha | 9,920 ha |
| 2007 | 9,230 ha | 4,650 ha | 13,900 ha |
| 2008 | 6,860 ha | 3,010 ha | 9,870 ha |
| 2009 | 11,900 ha | 3,850 ha | 15,700 ha |
| 2010 | 10,700 ha | 3,360 ha | 14,000 ha |
| 2011 | 12,800 ha | 4,440 ha | 17,200 ha |
| 2012 | 11,500 ha | 5,010 ha | 16,500 ha |
| 2013 | 5,950 ha | 3,080 ha | 9,030 ha |
| 2014 | 9,500 ha | 4,360 ha | 13,900 ha |
| 2015 | 8,680 ha | 4,140 ha | 12,800 ha |
| 2016 | 16,700 ha | 6,100 ha | 22,800 ha |
| 2017 | 17,000 ha | 5,180 ha | 22,200 ha |
| 2018 | 14,600 ha | 5,390 ha | 20,000 ha |
| 2019 | 10,900 ha | 5,450 ha | 16,300 ha |
| 2020 | 9,960 ha | 4,560 ha | 14,500 ha |
| 2021 | 11,600 ha | 5,650 ha | 17,200 ha |
| 2022 | 9,990 ha | 4,090 ha | 14,100 ha |
| 2023 | 9,770 ha | 4,320 ha | 14,100 ha |
| 2024 | 17,900 ha | 8,390 ha | 26,300 ha |
| 2025 | 15,600 ha | 6,480 ha | 22,100 ha |
Forest loss has stayed about the same: about 18,700 hectares a year in 2021–2025, against 19,200 hectares a year in 2016–2020. The worst year was 2024, when about 26,300 hectares of forest were lost.
What is causing deforestation in Hainan?
- Farms, pasture and plantationscleared for good66% · 245,000 ha
- Loggingcan grow back30% · 110,000 ha
- Towns and roadscleared for good3.5% · 13,000 ha
Also: mining and energy, shifting farming, storms, floods and other natural causes, 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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