City report · India
Dimāpur Air quality today
Air quality in Dimāpur currently reads AQI 68 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Air quality right now
AQI 68
Moderate
- PM2.5, fine particles (µg/m³)
- 18.2
- tree cover
- 33.4%
- trees in this area
- 105K
- more trees needed
- 0
Measured across a 2 km radius around N.S.T. Colony, Dimapur, Nagaland, India (12.57 km²), from a satellite image of Oct 29, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Dimāpur · AQI 68 (Moderate)
Dimāpur's tree count comes to 104,824 trees across 12.56 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Dimāpur today: AQI 68, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 03:30 local time via Open-Meteo / CAMS, corrected with 3 ground-station cities within 205 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 3 station cities within 205 km, e.g. Barbheti and Silchar
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
18.2
PM10
19.9
NO₂
12.3
O₃
23.0
SO₂
2.4
CO
306.0
- 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 Dimāpur's daily AQI at 75 on average, from 61 on Nov 10 to an hourly peak of 127 on Nov 6.
This is the US EPA AQI. How it differs from India's AQI (CPCB) · The full guide
Where Dimāpur stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Dimāpur: Healthy tree cover
33.4% tree cover against a 30% healthy-neighborhood target, across 12.56 km² of land.
Trees in this area
104,824
Target trees
104,824
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Dimāpur lost?
Since 2001, the area within 10 km of Dimāpur has lost about 2,010 hectares of forest (about 2,800 football pitches): 19% of the forest it had in 2000. Most of it (73%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.
2017: satellite photo from January 2017 of a 5 × 5 km area about 6 km north of the city center.
- Forest lost since 2001
- 2,010 haabout 2,800 football pitches
- Share of its forest
- 19%of what there was in 2000
- Cleared for good
- 1,470 hadeforestation: turned into farms, mines or towns
Forest loss has stayed about the same: about 121 hectares a year in 2021–2025, against 118 hectares a year in 2016–2020. The worst year was 2014, when about 196 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 | 15 ha | 2 ha | 18 ha |
| 2002 | 17 ha | 3 ha | 20 ha |
| 2003 | 14 ha | 4 ha | 17 ha |
| 2004 | 16 ha | 16 ha | 32 ha |
| 2005 | 21 ha | 13 ha | 34 ha |
| 2006 | 19 ha | 3 ha | 22 ha |
| 2007 | 22 ha | 2 ha | 24 ha |
| 2008 | 42 ha | 8 ha | 51 ha |
| 2009 | 42 ha | 19 ha | 61 ha |
| 2010 | 28 ha | 13 ha | 41 ha |
| 2011 | 51 ha | 22 ha | 73 ha |
| 2012 | 66 ha | 24 ha | 90 ha |
| 2013 | 52 ha | 26 ha | 79 ha |
| 2014 | 131 ha | 65 ha | 196 ha |
| 2015 | 40 ha | 13 ha | 54 ha |
| 2016 | 124 ha | 53 ha | 177 ha |
| 2017 | 113 ha | 11 ha | 124 ha |
| 2018 | 134 ha | 30 ha | 164 ha |
| 2019 | 41 ha | 24 ha | 65 ha |
| 2020 | 46 ha | 14 ha | 60 ha |
| 2021 | 106 ha | 58 ha | 164 ha |
| 2022 | 111 ha | 38 ha | 149 ha |
| 2023 | 110 ha | 41 ha | 151 ha |
| 2024 | 50 ha | 14 ha | 64 ha |
| 2025 | 56 ha | 22 ha | 78 ha |
What is causing deforestation around Dimāpur?
- Farms, pasture and plantationscleared for good66% · 1,330 ha
- Loggingcan grow back19% · 373 ha
- Shifting farmingcan grow back7.9% · 158 ha
Also: towns and roads, 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
- 15,000 ha
- Forest in 2020
- 13,600 ha
- Overall change
- −1,370 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Dimāpur shrank from about 15,000 hectares to 13,600 hectares, a net loss of about 1,370 hectares (−9.1%). New forest grew on about 716 hectares, but 2,090 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 Dimāpur
What is the air quality (AQI) in Dimāpur right now?
The latest reading for Dimāpur shows an AQI of 68 (Moderate), observed Nov 11, 03:30 local time via Open-Meteo / CAMS, corrected with 3 ground-station cities within 205 km, US EPA index. The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Dimāpur today?
At AQI 68 (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 Dimāpur been like this week?
Over the last 7 days, the CAMS air-quality model put Dimāpur's daily AQI at 75 on average, from 61 on Nov 10 to an hourly peak of 127 on Nov 6. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
Is Dimāpur's AQI the same as India's AQI (CPCB)?
No. Airleaf shows the US EPA Air Quality Index (AQI), the scale used by IQAir and most air-quality apps. India's Central Pollution Control Board (CPCB) publishes the National Air Quality Index on its own scale: 0–50 good, 51–100 satisfactory, 101–200 moderate, 201–300 poor, 301–400 very poor and 401–500 severe. The two scales don't line up. At moderate fine-particle levels the US scale reads higher: 55 µg/m³ of PM2.5 is 149 on the US AQI but about 92, "satisfactory", on India's. In heavy smog India's reads higher: 100 µg/m³ is 182 on the US AQI and about 232, "poor", on India's. CPCB also averages particles over 24 hours, so its figure moves more slowly than an hourly reading.
How much forest has the area around Dimāpur lost since 2001?
Since 2001, the area within 10 km of Dimāpur has lost about 2,010 hectares of forest (about 2,800 football pitches): 19% of the forest it had in 2000. Most of it (73%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations. Forest loss has stayed about the same: about 121 hectares a year in 2021–2025, against 118 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Dimāpur shrank from about 15,000 hectares to 13,600 hectares, a net loss of about 1,370 hectares (−9.1%). New forest grew on about 716 hectares, but 2,090 hectares were lost.
What is the tree count in Dimāpur?
Dimāpur has an estimated 104,824 trees across the 12.56 km² of land measured — 33.4% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Dimāpur need?
Dimāpur has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Dimāpur'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 N.S.T. Colony; the tree count is an estimate derived from that cover.
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