Iran · Semnan · 2 cities
Air quality in Semnan today The AQI right now, city by city
Right now, Shahrud has the cleanest air of the 2 cities we track in Semnan (AQI 13, Good), and Semnan the worst (AQI 52, Moderate). Shahrud has the most tree cover, at 5.0% — #31 of 97 cities measured in Iran.
Every city is measured the same way, over the same 2 km around its center: the air quality right now, from ground stations where there are any, and its tree cover.
- cities tracked
- 2
- average tree cover
- 3.9%
- Iran: 5.0%
- worst air now: Semnan
- 52
- cleanest air now: Shahrud
- 13
Lower is better on the US EPA index: 0–50 is Good, above 300 is Hazardous. Measured by Airleaf, refreshed hourly.
Semnan
Air quality today across Semnan, city by city
| Shahrud | 13Good | 5.0% | 78.5K | #31 of 97 |
|---|---|---|---|---|
| Semnan | 52Moderate | 2.8% | 85.5K | #61 of 97 |
Air quality is the US AQI from ground monitoring stations via OpenAQ where available, otherwise the Open-Meteo / CAMS model, refreshed hourly. Tree cover is measured within 2 km of each city center from Sentinel-2 imagery; the rank compares every city measured in Iran.
Deforestation · 2001–2025
How much forest has Semnan lost?
Since 2001, Semnan has lost about 24 hectares of forest (about 34 football pitches): under 1% of the forest it had in 2000. The biggest cause was logging (20%), after which forest can grow back. About 3 hectares (11%) was deforestation: forest cleared for good for farms, mines or towns.
- Forest lost since 2001
- 24 haabout 34 football pitches
- Share of its forest
- under 1%of what there was in 2000
- Cleared for good
- 3 hadeforestation: turned into farms, mines or towns
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | 2 ha | 5 ha | 6 ha |
| 2002 | under 1 ha | under 1 ha | under 1 ha |
| 2003 | under 1 ha | 2 ha | 2 ha |
| 2004 | under 1 ha | under 1 ha | under 1 ha |
| 2005 | under 1 ha | under 1 ha | under 1 ha |
| 2006 | under 1 ha | 3 ha | 3 ha |
| 2007 | under 1 ha | under 1 ha | under 1 ha |
| 2008 | under 1 ha | 3 ha | 4 ha |
| 2009 | under 1 ha | 2 ha | 2 ha |
| 2010 | under 1 ha | 3 ha | 3 ha |
| 2011 | under 1 ha | under 1 ha | under 1 ha |
| 2012 | under 1 ha | 2 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 |
The worst year was 2001, when about 6 hectares of forest were lost.
What is causing deforestation in Semnan?
- Loggingcan grow back20% · 5 ha
- Wildfirescan grow back12% · 3 ha
- Farms, pasture and plantationscleared for good8.8% · 2 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.
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. How it's measured
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Cleaner air at home in Semnan
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