City report · Rajasthan, India
Ajmer Air quality today
Air quality in Ajmer currently reads AQI 160 (Unhealthy): Everyone should limit long outdoor exertion; sensitive groups more so.
AQI 160
Air quality right now
Unhealthy
- PM2.5, fine particles (µg/m³)
- 68.5
- tree cover
- 30.8%
- trees in this area
- 96.7K
- more trees needed
- 28.9K
Measured across a 2 km radius around Patel Nagar, Topdara, Ajmer, Rajasthan 305001, India (12.57 km²), from a satellite image of Oct 28, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Ajmer · AQI 160 (Unhealthy)
Ajmer's tree count comes to 96,664 trees across 12.56 km² of land, 9 points below the 40% tree-cover level considered healthy for this area, so roughly 28,874 more trees would close the gap.
Air quality detail
Air quality in Ajmer today: AQI 160, Unhealthy
Main pollutant: PM2.5 · Observed Nov 11, 20:15 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · Civil Lines, Ajmer - RSPCB, 2.2 km away
Health signal
Everyone should limit long outdoor exertion; sensitive groups more so.
PM2.5
68.5
PM10
124.0
NO₂
70.3
O₃
10.1
SO₂
48.1
CO
1.5
Data: OpenAQ · CPCB, Central Pollution Control Board, Government of India (GODL-India)
- Outdoor exercise
- Everyone should cut down long or hard exercise; sensitive groups should avoid it
- Windows
- Keep them closed
- Mask
- Wear an N95 outdoors
- Air purifier
- Run one
Over the last 7 days, the CAMS air-quality model put Ajmer's daily AQI at 94 on average, from 67 on Nov 5 to an hourly peak of 177 on Nov 11.
This is the US EPA AQI. How it differs from India's AQI (CPCB) · The full guide
Where Ajmer stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Ajmer: Below target
30.8% tree cover against a 40% healthy-neighborhood target, across 12.56 km² of land.
Trees in this area
96,664
Target trees
125,538
More trees needed
28,874
CO₂ if planted / yr
635.2 t
Deforestation · 2001–2025
How much forest has Ajmer lost?
There was almost no forest around Ajmer in 2000, so there has been almost nothing to lose since. Only fairly dense woodland counts as forest in these maps, so scattered street and garden trees don't show up here.
2017: satellite photo from March 2017 of a 5 × 5 km area in the city center.
Forest gained and lost, 2000–2020
- Forest in 2000
- 91 ha
- Forest in 2020
- 127 ha
- Overall change
- +36 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Ajmer grew from about 91 hectares to 127 hectares, a net gain of about 36 hectares. New forest grew on about 59 hectares, while 23 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 Ajmer
What is the air quality (AQI) in Ajmer right now?
The latest reading for Ajmer shows an AQI of 160 (Unhealthy), measured Nov 11, 20:15 local time by the Civil Lines, Ajmer - RSPCB ground monitoring station, 2.2 km away, via OpenAQ. The main pollutant is PM2.5. Everyone should limit long outdoor exertion; sensitive groups more so.
Is it safe to exercise outside in Ajmer today?
At AQI 160 (Unhealthy): everyone should cut down long or hard exercise; sensitive groups should avoid it. Windows: keep them closed. Masks: wear an N95 outdoors. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Ajmer been like this week?
Over the last 7 days, the CAMS air-quality model put Ajmer's daily AQI at 94 on average, from 67 on Nov 5 to an hourly peak of 177 on Nov 11. On 2 of those days the average was above 100, unhealthy for sensitive groups.
Is Ajmer'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 Ajmer lost since 2001?
There was almost no forest around Ajmer in 2000, so there has been almost nothing to lose since. Only fairly dense woodland counts as forest in these maps, so scattered street and garden trees don't show up here. Comparing satellite maps from 2000 and 2020, the forest around Ajmer grew from about 91 hectares to 127 hectares, a net gain of about 36 hectares. New forest grew on about 59 hectares, while 23 hectares were lost.
What is the tree count in Ajmer?
Ajmer has an estimated 96,664 trees across the 12.56 km² of land measured — 30.8% tree cover, 9 percentage points short of the 40% tree-cover target set for this area.
How many more trees does Ajmer need?
Ajmer needs roughly 28,874 more trees to close a 9-point shortfall against its 40% tree-cover target — about 635.2 t of extra CO₂ absorbed per year once grown.
How are Ajmer's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Patel Nagar, 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 Patel Nagar; the tree count is an estimate derived from that cover.
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