City report · Uttar Pradesh, India
Hardoī Air quality today
Air quality in Hardoī currently reads AQI 178 (Unhealthy): Everyone should limit long outdoor exertion; sensitive groups more so.
Air quality right now
AQI 178
Unhealthy
- PM2.5, fine particles (µg/m³)
- 91.5
- tree cover
- 16.0%
- trees in this area
- 50.3K
- more trees needed
- 75.4K
Measured across a 2 km radius around Hardoi, Uttar Pradesh 241001, India (12.57 km²), from a satellite image of Oct 27, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Hardoī · AQI 178 (Unhealthy)
Hardoī's tree count comes to 50,265 trees across 12.57 km², 24 points below the 40% tree-cover level considered healthy for this area, so roughly 75,398 more trees would close the gap.
Air quality detail
Air quality in Hardoī today: AQI 178, Unhealthy
Main pollutant: PM2.5 · Observed Nov 11, 03:30 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. Lucknow and Unnao
Health signal
Everyone should limit long outdoor exertion; sensitive groups more so.
PM2.5
91.5
PM10
103.1
NO₂
41.7
O₃
18.0
SO₂
12.6
CO
458.0
- 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 Hardoī's daily AQI at 184 on average, from 167 on Nov 10 to an hourly peak of 252 on Nov 6.
This is the US EPA AQI. How it differs from India's AQI (CPCB) · The full guide
Where Hardoī stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Hardoī: Critically low
16.0% tree cover against a 40% healthy-neighborhood target, across 12.57 km².
Trees in this area
50,265
Target trees
125,663
More trees needed
75,398
CO₂ if planted / yr
1,659 t
Deforestation · 2001–2025
How much forest has Hardoī lost?
Since 2001, the area within 10 km of Hardoī has lost about 25 hectares of forest (about 35 football pitches): 18% of the forest it had in 2000. Most of it (79%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.
2017: satellite photo from March 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 25 haabout 35 football pitches
- Share of its forest
- 18%of what there was in 2000
- Cleared for good
- 19 hadeforestation: turned into farms, mines or towns
The worst year was 2001, when about 7 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 | 5 ha | 3 ha | 7 ha |
| 2002 | under 1 ha | under 1 ha | under 1 ha |
| 2003 | under 1 ha | under 1 ha | under 1 ha |
| 2004 | 1 ha | under 1 ha | 2 ha |
| 2005 | 1 ha | under 1 ha | 2 ha |
| 2006 | 6 ha | under 1 ha | 6 ha |
| 2007 | under 1 ha | under 1 ha | under 1 ha |
| 2008 | 1 ha | under 1 ha | 1 ha |
| 2009 | under 1 ha | under 1 ha | under 1 ha |
| 2010 | under 1 ha | under 1 ha | under 1 ha |
| 2011 | 2 ha | under 1 ha | 2 ha |
| 2012 | 2 ha | under 1 ha | 2 ha |
| 2013 | under 1 ha | under 1 ha | under 1 ha |
| 2014 | under 1 ha | under 1 ha | under 1 ha |
| 2015 | under 1 ha | under 1 ha | under 1 ha |
| 2016 | under 1 ha | under 1 ha | under 1 ha |
| 2017 | under 1 ha | under 1 ha | under 1 ha |
| 2018 | under 1 ha | under 1 ha | under 1 ha |
| 2019 | under 1 ha | under 1 ha | under 1 ha |
| 2020 | under 1 ha | under 1 ha | under 1 ha |
| 2021 | under 1 ha | under 1 ha | under 1 ha |
| 2022 | under 1 ha | under 1 ha | under 1 ha |
| 2023 | under 1 ha | under 1 ha | under 1 ha |
| 2024 | under 1 ha | under 1 ha | under 1 ha |
| 2025 | under 1 ha | under 1 ha | under 1 ha |
What is causing deforestation around Hardoī?
- Farms, pasture and plantationscleared for good74% · 18 ha
- Towns and roadscleared for good5.3% · 1 ha
- Unknown causescause unknown21% · 5 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
- 819 ha
- Forest in 2020
- 951 ha
- Overall change
- +132 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Hardoī grew from about 819 hectares to 951 hectares, a net gain of about 132 hectares (+16%). New forest grew on about 193 hectares, while 61 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
In the same region
Measured cities near Hardoī
Same 2 km radius, same index — so they compare directly.
- Farrukhābād54.5 km
India
- Tree cover
- 23%
- Air quality
- 150
- Sītāpur57.4 km
India
- Tree cover
- 41%
- Air quality
- 168
- Shāhjānpur58.4 km
India
- Tree cover
- 15%
- Air quality
- 115
- Lakhīmpur88.6 km
India
- Tree cover
- 24%
- Air quality
- 161
- Lucknow99.8 km
India
- Tree cover
- 28%
- Air quality
- 115
- Unnāo100.7 km
India
- Tree cover
- 18%
- Air quality
- 204
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Frequently asked
Questions about Hardoī
What is the air quality (AQI) in Hardoī right now?
The latest reading for Hardoī shows an AQI of 178 (Unhealthy), observed Nov 11, 03:30 local time via Open-Meteo / CAMS, corrected with 8 ground-station cities within 205 km, US EPA index. The main pollutant is PM2.5. Everyone should limit long outdoor exertion; sensitive groups more so.
Is it safe to exercise outside in Hardoī today?
At AQI 178 (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 Hardoī been like this week?
Over the last 7 days, the CAMS air-quality model put Hardoī's daily AQI at 184 on average, from 167 on Nov 10 to an hourly peak of 252 on Nov 6. On 7 of those days the average was above 100, unhealthy for sensitive groups.
Is Hardoī'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 Hardoī lost since 2001?
Since 2001, the area within 10 km of Hardoī has lost about 25 hectares of forest (about 35 football pitches): 18% of the forest it had in 2000. Most of it (79%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations. Comparing satellite maps from 2000 and 2020, the forest around Hardoī grew from about 819 hectares to 951 hectares, a net gain of about 132 hectares (+16%). New forest grew on about 193 hectares, while 61 hectares were lost.
What is the tree count in Hardoī?
Hardoī has an estimated 50,265 trees across the 12.57 km² measured — 16.0% tree cover, 24 percentage points short of the 40% tree-cover target set for this area.
How many more trees does Hardoī need?
Hardoī needs roughly 75,398 more trees to close a 24-point shortfall against its 40% tree-cover target — about 1,659 t of extra CO₂ absorbed per year once grown.
How are Hardoī'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 Hardoi; the tree count is an estimate derived from that cover.
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