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City report · England, United Kingdom

Telford Air quality today

Air quality in Telford currently reads AQI 11 (Good): Air quality is satisfactory for everyone.

Air quality right now

AQI 11

Good

Main pollutant: PM2.5
PM2.5, fine particles (µg/m³)
1.9
tree cover
45.5%
trees in this area
143K
more trees needed
0

Measured across a 1.2 mi (2 km) radius around Overdale, Telford, UK (4.9 sq mi), from a satellite image of Aug 23, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.

Telford · AQI 11 (Good)

Dark green marks tree cover detected inside the study radius.Sentinel-2 L2A (ESA Copernicus) via Earth Search, captured Aug 23, 2026

Telford's tree count comes to 142,657 trees across 4.8 sq mi (12.54 km²) of land, already at or above the 30% tree-cover level considered healthy for this area.

Air quality detail

Air quality in Telford today: AQI 11, Good

Main pollutant: PM2.5 · Observed Nov 11, 15:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.

Ground station · Shrewsbury, UK, 12.6 mi (20.3 km) away

Health signal

Air quality is satisfactory for everyone.

PM2.5

1.9

PM10

—

NO₂

—

O₃

—

SO₂

—

CO

—

Data: OpenAQ · AirGradient, Dave Q

Outdoor exercise
A good day to be active outside
Windows
Open them to air the house
Mask
Not needed
Air purifier
Not needed

Over the last 7 days, the CAMS air-quality model put Telford's daily AQI at 63 on average, from 32 on Nov 4 to an hourly peak of 87 on Nov 7.

Last 7 days · model estimateavg 63 · peak 87
Nov 4: AQI 32 (peak 43)Nov 5: AQI 36 (peak 55)Nov 6: AQI 67 (peak 84)Nov 7: AQI 85 (peak 87)Nov 8: AQI 73 (peak 85)Nov 9: AQI 76 (peak 81)Nov 10: AQI 74 (peak 80)
Nov 4Nov 10

This is the US EPA AQI. How it differs from the UK's Daily Air Quality Index

Where Telford stands: the most polluted cities in the world right now · the cleanest

Tree cover detail

Tree cover in Telford: Healthy tree cover

45.5% tree cover against a 30% healthy-neighborhood target, across 4.8 sq mi (12.54 km²) of land.

Target reached

Trees in this area

142,657

Target trees

142,657

More trees needed

0

CO₂ if planted / yr

0 kg

Deforestation · 2001–2025

How much forest has Telford lost?

Since 2001, the area within 10 km of Telford has lost about 111 hectares of forest (about 150 football pitches): 2.7% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 22 hectares (20%) was deforestation: forest cleared for good for farms, mines or towns.

Satellite image of the area around Telford, July 2017

2017: satellite photo from July 2017 of a 5 × 5 km area about 7 km east of the city center.

Forest lost since 2001
111 haabout 150 football pitches
Share of its forest
2.7%of what there was in 2000
Cleared for good
22 hadeforestation: turned into farms, mines or towns

The worst year was 2025, when about 21 hectares of forest were lost.

Forest lost each year around Telford, 2001–2025

Hectares of forest lost each year

Forest lost each year around Telford, 2001–2025. Use the left and right arrow keys to read each year.21.1

Show the figures as a table
Forest lost each year around Telford, 2001–2025
YearCleared for goodCan grow backTotal
2001under 1 ha1 ha2 ha
2002under 1 ha1 ha2 ha
2003under 1 haunder 1 haunder 1 ha
2004under 1 haunder 1 ha1 ha
2005under 1 ha1 ha1 ha
20064 haunder 1 ha5 ha
2007under 1 haunder 1 haunder 1 ha
2008under 1 ha3 ha3 ha
2009under 1 ha2 ha3 ha
20103 ha1 ha4 ha
20112 haunder 1 ha2 ha
20122 haunder 1 ha3 ha
2013under 1 ha3 ha3 ha
2014under 1 ha1 ha2 ha
2015under 1 haunder 1 haunder 1 ha
2016under 1 haunder 1 haunder 1 ha
2017under 1 ha3 ha3 ha
2018under 1 haunder 1 ha2 ha
20192 ha6 ha8 ha
2020under 1 ha4 ha4 ha
2021under 1 ha2 ha3 ha
2022under 1 ha7 ha7 ha
20231 ha9 ha10 ha
20243 ha18 ha21 ha
2025under 1 ha21 ha21 ha

What is causing deforestation around Telford?

  • Loggingcan grow back63% · 69 ha
  • Towns and roadscleared for good18% · 20 ha
  • Farms, pasture and plantationscleared for good1.9% · 2 ha

Also: unknown causes.

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
3,830 ha
Forest in 2020
4,030 ha
Overall change
+204 hamore forest than in 2000

Comparing satellite maps from 2000 and 2020, the forest around Telford grew from about 3,830 hectares to 4,030 hectares, a net gain of about 204 hectares (+5.3%). New forest grew on about 351 hectares, while 147 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 Telford

Same 2 km radius, same index — so they compare directly.

  • Wolverhampton

    United Kingdom

    24.2 km
    Tree cover
    25%
    Air quality
    55
  • Dudley

    United Kingdom

    31.6 km
    Tree cover
    35%
    Air quality
    55
  • Walsall

    United Kingdom

    33.0 km
    Tree cover
    32%
    Air quality
    55
  • Stoke-on-Trent

    United Kingdom

    40.5 km
    Tree cover
    25%
    Air quality
    19
  • Birmingham

    United Kingdom

    43.0 km
    Tree cover
    16%
    Air quality
    55
  • Sutton Coldfield

    United Kingdom

    44.4 km
    Tree cover
    48%
    Air quality
    28

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Telford air quality (AQI) and tree cover — measured by Airleaf
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Frequently asked

Questions about Telford

What is the air quality (AQI) in Telford right now?

The latest reading for Telford shows an AQI of 11 (Good), measured Nov 11, 15:00 local time by the Shrewsbury, UK ground monitoring station, 12.6 mi (20.3 km) away, via OpenAQ. The main pollutant is PM2.5. Air quality is satisfactory for everyone.

Is it safe to exercise outside in Telford today?

At AQI 11 (Good): a good day to be active outside. Windows: open them to air the house. Masks: not needed. The reading changes through the day, so check again before a long run or ride.

What has the air quality in Telford been like this week?

Over the last 7 days, the CAMS air-quality model put Telford's daily AQI at 63 on average, from 32 on Nov 4 to an hourly peak of 87 on Nov 7. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.

Is Telford's AQI the same as the UK's Daily Air Quality Index?

No. Airleaf shows the US EPA Air Quality Index (AQI), the scale used by IQAir and most air-quality apps. The UK's Daily Air Quality Index (DAQI), published by Defra, runs from 1 to 10: 1–3 low, 4–6 moderate, 7–9 high and 10 very high. It is a different scale altogether, so a US AQI figure can't be read on it directly; both, though, are built from the same main pollutants, with fine particles (PM2.5) usually the one that decides the reading.

How much forest has the area around Telford lost since 2001?

Since 2001, the area within 10 km of Telford has lost about 111 hectares of forest (about 150 football pitches): 2.7% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 22 hectares (20%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Telford grew from about 3,830 hectares to 4,030 hectares, a net gain of about 204 hectares (+5.3%). New forest grew on about 351 hectares, while 147 hectares were lost.

What is the tree count in Telford?

Telford has an estimated 142,657 trees across the 4.8 sq mi (12.54 km²) of land measured — 45.5% tree cover, already past the 30% tree-cover target set for this area.

How many more trees does Telford need?

Telford has already reached its tree-cover target, so no additional trees are needed to close the gap.

How are Telford's air quality and tree cover measured?

Air quality is measured by ground monitoring stations near Overdale, 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 1.2 mi (2 km) radius around Overdale; the tree count is an estimate derived from that cover.

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