City report · Uttar Pradesh, India
Bastī Air quality today
Air quality in Bastī currently reads AQI 143 (Unhealthy for sensitive groups): Sensitive groups should limit long or intense outdoor activity.
Air quality right now
AQI 143
Unhealthy for sensitive groups
- PM2.5, fine particles (µg/m³)
- 62.5
- tree cover
- 27.8%
- trees in this area
- 86.3K
- more trees needed
- 22.3K
Measured across a 2 km radius around Katra, Basti, Uttar Pradesh 272001, India (12.57 km²), from a satellite image of Oct 26, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Bastī · AQI 143 (Unhealthy for sensitive groups)
Bastī's tree count comes to 86,288 trees across 12.42 km² of land, 7 points below the 35% tree-cover level considered healthy for this area, so roughly 22,348 more trees would close the gap.
Air quality detail
Air quality in Bastī today: AQI 143, Unhealthy for sensitive groups
Main pollutant: PM2.5 · Observed Nov 10, 19:30 local time via Open-Meteo / CAMS, corrected with 8 ground-station cities within 205 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 8 station cities within 205 km, e.g. Butwal and Raebareli
Health signal
Sensitive groups should limit long or intense outdoor activity.
PM2.5
62.5
PM10
72.4
NO₂
42.0
O₃
55.0
SO₂
14.3
CO
754.0
- Outdoor exercise
- Children, older adults and people with asthma or heart disease should cut down long or hard exercise
- Windows
- Close them to keep the outside air out
- Mask
- Sensitive groups: an N95 outdoors
- Air purifier
- Run one, especially in bedrooms
Over the last 7 days, the CAMS air-quality model put Bastī's daily AQI at 184 on average, from 143 on Nov 10 to an hourly peak of 282 on Nov 8.
This is the US EPA AQI. How it differs from India's AQI (CPCB) · The full guide
Where Bastī stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Bastī: Below target
27.8% tree cover against a 35% healthy-neighborhood target, across 12.42 km² of land.
Trees in this area
86,288
Target trees
108,636
More trees needed
22,348
CO₂ if planted / yr
491.7 t
Deforestation · 2001–2025
How much forest has Bastī lost?
There was almost no forest around Bastī 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
- 459 ha
- Forest in 2020
- 576 ha
- Overall change
- +117 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Bastī grew from about 459 hectares to 576 hectares, a net gain of about 117 hectares (+25%). New forest grew on about 124 hectares, while 7 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 Bastī
What is the air quality (AQI) in Bastī right now?
The latest reading for Bastī shows an AQI of 143 (Unhealthy for sensitive groups), observed Nov 10, 19:30 local time via Open-Meteo / CAMS, corrected with 8 ground-station cities within 205 km, US EPA index. The main pollutant is PM2.5. Sensitive groups should limit long or intense outdoor activity.
Is it safe to exercise outside in Bastī today?
At AQI 143 (Unhealthy for sensitive groups): children, older adults and people with asthma or heart disease should cut down long or hard exercise. Windows: close them to keep the outside air out. Masks: sensitive groups: an N95 outdoors. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Bastī been like this week?
Over the last 7 days, the CAMS air-quality model put Bastī's daily AQI at 184 on average, from 143 on Nov 10 to an hourly peak of 282 on Nov 8. On 7 of those days the average was above 100, unhealthy for sensitive groups.
Is Bastī'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 Bastī lost since 2001?
There was almost no forest around Bastī 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 Bastī grew from about 459 hectares to 576 hectares, a net gain of about 117 hectares (+25%). New forest grew on about 124 hectares, while 7 hectares were lost.
What is the tree count in Bastī?
Bastī has an estimated 86,288 trees across the 12.42 km² of land measured — 27.8% tree cover, 7 percentage points short of the 35% tree-cover target set for this area.
How many more trees does Bastī need?
Bastī needs roughly 22,348 more trees to close a 7-point shortfall against its 35% tree-cover target — about 491.7 t of extra CO₂ absorbed per year once grown.
How are Bastī'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 Katra; the tree count is an estimate derived from that cover.
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