City report · Guangdong, China
Huicheng Air quality today
Air quality in Huicheng currently reads AQI 51 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 51
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 9.1
- tree cover
- 28.0%
- trees in this area
- 88.0K
- more trees needed
- 6.3K
Measured across a 2 km radius around Huilai County, Jieyang, Guangdong Province, China (12.57 km²), from a satellite image of Sep 17, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Huicheng · AQI 51 (Moderate)
Huicheng's tree count comes to 87,965 trees across 12.57 km², 2 points below the 30% tree-cover level considered healthy for this area, so roughly 6,283 more trees would close the gap.
Air quality detail
Air quality in Huicheng today: AQI 51, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 23:00 local time via World Air Quality Index Project ground stations, US EPA index. Values in µg/m³.
Ground station · 惠来惠城, (揭阳市惠来惠城), 200 m away
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
9.1
PM10
30.2
NO₂
—
O₃
—
SO₂
—
CO
—
Data: World Air Quality Index Project, Guangdong Environmental Protection public network (广东环境保护公众网)
- Outdoor exercise
- Fine for most people; unusually sensitive people should take long or hard exercise easier
- Windows
- Fine to open; close them if you are sensitive to pollution
- Mask
- Not needed for most people
- Air purifier
- Worth running if you are sensitive
Over the last 7 days, the CAMS air-quality model put Huicheng's daily AQI at 75 on average, from 52 on Nov 10 to an hourly peak of 163 on Nov 5.
Where Huicheng stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Huicheng: Below target
28.0% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
87,965
Target trees
94,248
More trees needed
6,283
CO₂ if planted / yr
138.2 t
Deforestation · 2001–2025
How much forest has Huicheng lost?
Since 2001, the area within 10 km of Huicheng has lost about 947 hectares of forest (about 1,300 football pitches): 22% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 219 hectares (23%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from October 2017 of a 5 × 5 km area about 6 km north of the city center.
- Forest lost since 2001
- 947 haabout 1,300 football pitches
- Share of its forest
- 22%of what there was in 2000
- Cleared for good
- 219 hadeforestation: turned into farms, mines or towns
Forest loss is slowing down: about 24 hectares a year in 2021–2025, down from 56 hectares a year in 2016–2020. The worst year was 2016, when about 128 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 | 18 ha | 59 ha | 77 ha |
| 2002 | 6 ha | 12 ha | 17 ha |
| 2003 | 2 ha | 17 ha | 19 ha |
| 2004 | 11 ha | 7 ha | 18 ha |
| 2005 | 2 ha | 11 ha | 12 ha |
| 2006 | 5 ha | 18 ha | 23 ha |
| 2007 | 12 ha | 12 ha | 25 ha |
| 2008 | 14 ha | 11 ha | 25 ha |
| 2009 | 6 ha | 16 ha | 22 ha |
| 2010 | 12 ha | 15 ha | 27 ha |
| 2011 | 16 ha | 35 ha | 51 ha |
| 2012 | 7 ha | 38 ha | 45 ha |
| 2013 | 4 ha | 39 ha | 43 ha |
| 2014 | 12 ha | 30 ha | 43 ha |
| 2015 | 11 ha | 91 ha | 102 ha |
| 2016 | 23 ha | 105 ha | 128 ha |
| 2017 | 18 ha | 42 ha | 60 ha |
| 2018 | 12 ha | 27 ha | 39 ha |
| 2019 | under 1 ha | 14 ha | 15 ha |
| 2020 | 12 ha | 25 ha | 36 ha |
| 2021 | 4 ha | 32 ha | 37 ha |
| 2022 | 5 ha | 19 ha | 24 ha |
| 2023 | 3 ha | 16 ha | 20 ha |
| 2024 | under 1 ha | 21 ha | 22 ha |
| 2025 | 4 ha | 15 ha | 19 ha |
What is causing deforestation around Huicheng?
- Loggingcan grow back75% · 711 ha
- Towns and roadscleared for good17% · 157 ha
- Farms, pasture and plantationscleared for good6.6% · 62 ha
Also: wildfires, 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
- 9,480 ha
- Forest in 2020
- 9,490 ha
- Overall change
- +9 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Huicheng stayed about the same size, at about 9,490 hectares: new forest grew on about 581 hectares, and about 572 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 Huicheng
What is the air quality (AQI) in Huicheng right now?
The latest reading for Huicheng shows an AQI of 51 (Moderate), measured Nov 11, 23:00 local time by the 惠来惠城, (揭阳市惠来惠城) ground monitoring station, 200 m away, via OpenAQ. The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Huicheng today?
At AQI 51 (Moderate): fine for most people; unusually sensitive people should take long or hard exercise easier. Windows: fine to open; close them if you are sensitive to pollution. Masks: not needed for most people. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Huicheng been like this week?
Over the last 7 days, the CAMS air-quality model put Huicheng's daily AQI at 75 on average, from 52 on Nov 10 to an hourly peak of 163 on Nov 5. On 1 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Huicheng lost since 2001?
Since 2001, the area within 10 km of Huicheng has lost about 947 hectares of forest (about 1,300 football pitches): 22% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 219 hectares (23%) was deforestation: forest cleared for good for farms, mines or towns. Forest loss is slowing down: about 24 hectares a year in 2021–2025, down from 56 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Huicheng stayed about the same size, at about 9,490 hectares: new forest grew on about 581 hectares, and about 572 hectares were lost.
What is the tree count in Huicheng?
Huicheng has an estimated 87,965 trees across the 12.57 km² measured — 28.0% tree cover, 2 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Huicheng need?
Huicheng needs roughly 6,283 more trees to close a 2-point shortfall against its 30% tree-cover target — about 138.2 t of extra CO₂ absorbed per year once grown.
How are Huicheng's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Huilai County, 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 Huilai County; the tree count is an estimate derived from that cover.
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