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City report · Dong Nai, Vietnam

Chơn Thành Air quality today

Air quality in Chơn Thành currently reads AQI 12 (Good): Air quality is satisfactory for everyone.

Air quality right now

AQI 12

Good

Main pollutant: PM2.5
PM2.5, fine particles (µg/m³)
1.9
tree cover
65.0%
trees in this area
204K
more trees needed
0

Measured across a 2 km radius around Chon Thanh, Dong Nai City, Binh Phuoc, Vietnam (12.57 km²), from a satellite image of Jun 18, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.

Chơn Thành · AQI 12 (Good)

Dark green marks tree cover detected inside the study radius.Sentinel-2 L2A (ESA Copernicus) via Earth Search, captured Jun 18, 2026

Chơn Thành's tree count comes to 204,204 trees across 12.57 km², already at or above the 30% tree-cover level considered healthy for this area.

Air quality detail

Air quality in Chơn Thành today: AQI 12, Good

Main pollutant: PM2.5 · Observed Nov 11, 06:00 local time via Open-Meteo / CAMS, corrected with 3 ground-station cities within 65 km, US EPA index. Values in µg/m³.

Estimate · model corrected with 3 station cities within 65 km, e.g. Ho Chi Minh City and Ho Chi Minh City

Health signal

Air quality is satisfactory for everyone.

PM2.5

1.9

PM10

2.1

NO₂

4.1

O₃

60.0

SO₂

2.4

CO

212.0

Outdoor exercise
A good day to be active outside
Windows
Open them to air the house
Mask
Not needed
Air purifier
Not needed

Over the last 7 days, the CAMS air-quality model put Chơn Thành's daily AQI at 39 on average, from 22 on Nov 11 to an hourly peak of 76 on Nov 6.

Last 7 daysavg 39 · peak 76
Nov 5: AQI 53 (peak 61)Nov 6: AQI 62 (peak 76)Nov 7: AQI 29 (peak 43)Nov 8: AQI 45 (peak 59)Nov 9: AQI 32 (peak 52)Nov 10: AQI 27 (peak 55)Nov 11: AQI 22 (peak 41)
Nov 5Nov 11

Where Chơn Thành stands: the most polluted cities in the world right now · the cleanest

Tree cover detail

Tree cover in Chơn Thành: Healthy tree cover

65.0% tree cover against a 30% healthy-neighborhood target, across 12.57 km².

Target reached

Trees in this area

204,204

Target trees

204,204

More trees needed

0

CO₂ if planted / yr

0 kg

Deforestation · 2001–2025

How much forest has Chơn Thành lost?

Since 2001, the area within 10 km of Chơn Thành has lost about 9,320 hectares of forest (about 13,000 football pitches): 85% of the forest it had in 2000. Most of it (98%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.

Satellite image of the area around Chơn Thành, February 2017

2017: satellite photo from February 2017 of a 5 × 5 km area about 2 km east of the city center.

Forest lost since 2001
9,320 haabout 13,000 football pitches
Share of its forest
85%of what there was in 2000
Cleared for good
9,110 hadeforestation: turned into farms, mines or towns

Forest loss is slowing down: about 186 hectares a year in 2021–2025, down from 837 hectares a year in 2016–2020. The worst year was 2017, when about 1,820 hectares of forest were lost.

Forest lost each year around Chơn Thành, 2001–2025

Hectares of forest lost each year

Forest lost each year around Chơn Thành, 2001–2025. Use the left and right arrow keys to read each year.1.82K

Show the figures as a table
Forest lost each year around Chơn Thành, 2001–2025
YearCleared for goodCan grow backTotal
200166 haunder 1 ha67 ha
200266 ha3 ha69 ha
200395 haunder 1 ha95 ha
200443 haunder 1 ha43 ha
200519 haunder 1 ha19 ha
2006113 haunder 1 ha113 ha
200760 haunder 1 ha60 ha
2008184 haunder 1 ha184 ha
2009340 ha3 ha343 ha
201036 haunder 1 ha36 ha
2011493 ha2 ha495 ha
2012220 ha8 ha228 ha
2013194 ha1 ha195 ha
20141,090 ha12 ha1,100 ha
20151,090 ha66 ha1,160 ha
20161,270 ha14 ha1,290 ha
20171,810 ha12 ha1,820 ha
2018555 ha13 ha568 ha
2019288 ha2 ha290 ha
2020152 ha66 ha218 ha
2021376 ha14 ha390 ha
2022153 ha1 ha154 ha
202376 haunder 1 ha77 ha
2024210 haunder 1 ha210 ha
2025100 ha1 ha101 ha

What is causing deforestation around Chơn Thành?

  • Farms, pasture and plantationscleared for good79% · 7,400 ha
  • Towns and roadscleared for good18% · 1,710 ha
  • Loggingcan grow back2.3% · 217 ha

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
17,900 ha
Forest in 2020
20,100 ha
Overall change
+2,200 hamore forest than in 2000

Comparing satellite maps from 2000 and 2020, the forest around Chơn Thành grew from about 17,900 hectares to 20,100 hectares, a net gain of about 2,200 hectares (+12%). New forest grew on about 8,160 hectares, while 5,970 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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Chơn Thành air quality (AQI) and tree cover — measured by Airleaf
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Frequently asked

Questions about Chơn Thành

What is the air quality (AQI) in Chơn Thành right now?

The latest reading for Chơn Thành shows an AQI of 12 (Good), observed Nov 11, 06:00 local time via Open-Meteo / CAMS, corrected with 3 ground-station cities within 65 km, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.

Is it safe to exercise outside in Chơn Thành today?

At AQI 12 (Good): a good day to be active outside. Windows: open them to air the house. Masks: not needed. The reading changes through the day, so check again before a long run or ride.

What has the air quality in Chơn Thành been like this week?

Over the last 7 days, the CAMS air-quality model put Chơn Thành's daily AQI at 39 on average, from 22 on Nov 11 to an hourly peak of 76 on Nov 6. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.

How much forest has the area around Chơn Thành lost since 2001?

Since 2001, the area within 10 km of Chơn Thành has lost about 9,320 hectares of forest (about 13,000 football pitches): 85% of the forest it had in 2000. Most of it (98%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations. Forest loss is slowing down: about 186 hectares a year in 2021–2025, down from 837 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Chơn Thành grew from about 17,900 hectares to 20,100 hectares, a net gain of about 2,200 hectares (+12%). New forest grew on about 8,160 hectares, while 5,970 hectares were lost.

What is the tree count in Chơn Thành?

Chơn Thành has an estimated 204,204 trees across the 12.57 km² measured — 65.0% tree cover, already past the 30% tree-cover target set for this area.

How many more trees does Chơn Thành need?

Chơn Thành has already reached its tree-cover target, so no additional trees are needed to close the gap.

How are Chơn Thành's air quality and tree cover measured?

Air quality comes from ground monitoring stations via OpenAQ where one reports nearby, and otherwise, as here, from the Open-Meteo / CAMS model, which may differ from street-level monitors. 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 Chon Thanh; the tree count is an estimate derived from that cover.

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