City report · Iran
Bīrjand Air quality today
Air quality in Bīrjand currently reads AQI 52 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Air quality right now
AQI 52
Moderate
- PM2.5, fine particles (µg/m³)
- 11.3
- tree cover
- 3.9%
- trees in this area
- 12.3K
- more trees needed
- 82.0K
Measured across a 2 km radius around Birjand, South Khorasan Province, Iran (12.57 km²), from a satellite image of Sep 26, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Bīrjand · AQI 52 (Moderate)
Bīrjand's tree count comes to 12,252 trees across 12.57 km², 26 points below the 30% tree-cover level considered healthy for this area, so roughly 81,996 more trees would close the gap.
Air quality detail
Air quality in Bīrjand today: AQI 52, Moderate
Main pollutant: PM2.5 · Observed Nov 10, 23:30 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Model estimate · no ground station nearby
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
11.3
PM10
16.5
NO₂
37.6
O₃
28.0
SO₂
5.1
CO
535.0
- 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 Bīrjand's daily AQI at 59 on average, from 49 on Nov 9 to an hourly peak of 74 on Nov 4.
Where Bīrjand stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Bīrjand: Critically low
3.9% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
12,252
Target trees
94,248
More trees needed
81,996
CO₂ if planted / yr
1,804 t
Deforestation · 2001–2025
How much forest has Bīrjand lost?
There was almost no forest around Bīrjand 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 August 2017 of a 5 × 5 km area in the city center.
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. Images: contains modified Copernicus Sentinel data. How it's measured
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Frequently asked
Questions about Bīrjand
What is the air quality (AQI) in Bīrjand right now?
The latest reading for Bīrjand shows an AQI of 52 (Moderate), observed Nov 10, 23:30 local time via Open-Meteo / CAMS, 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 Bīrjand today?
At AQI 52 (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 Bīrjand been like this week?
Over the last 7 days, the CAMS air-quality model put Bīrjand's daily AQI at 59 on average, from 49 on Nov 9 to an hourly peak of 74 on Nov 4. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Bīrjand lost since 2001?
There was almost no forest around Bīrjand 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.
What is the tree count in Bīrjand?
Bīrjand has an estimated 12,252 trees across the 12.57 km² measured — 3.9% tree cover, 26 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Bīrjand need?
Bīrjand needs roughly 81,996 more trees to close a 26-point shortfall against its 30% tree-cover target — about 1,804 t of extra CO₂ absorbed per year once grown.
How are Bīrjand'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 Birjand; the tree count is an estimate derived from that cover.
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