What's the air quality in Blaenau Gwent? NO₂ 4.9 µg/m³
In 2025 the average resident of Blaenau Gwent lived with background NO₂ of 4.9 µg/m³, Low for England and Wales and below the WHO guideline of 10. PM2.5 was 5.7 µg/m³, Very Low for England and Wales and 1.1 times the WHO guideline of 5. The typical area in England and Wales has NO₂ of 7.2 and PM2.5 of 7.4 µg/m³.
- PM2.5
- 5.7 µg/m³
- NO₂ for England and Wales
- Low
- Figures for
- 2025 annual average
Modelled background levels averaged over where residents live (Census 2021), not roadside levels. Contains public sector information licensed under the Open Government Licence v3.0. Source: Defra modelled background pollution, 2025. How we calculate this
All house prices in Blaenau GwentIs the air quality good in Blaenau Gwent?
Background NO₂ in Blaenau Gwent is 4.9 µg/m³, below the WHO guideline of 10, and lower than the typical area (7.2). That puts it in the Low band. Background PM2.5 in Blaenau Gwent is 5.7 µg/m³, 1.1 times the WHO guideline of 5, and lower than the typical area (7.4). That puts it in the Very Low band. Most of England and Wales is above the WHO guideline for PM2.5, so the bands compare places with each other rather than giving a pass or fail.
Nitrogen dioxide (NO₂): 4.9 µg/m³
NO₂ level is Low, on a scale from Very Low to Very High.
Low means the second-lowest fifth of areas in England and Wales for NO₂.
| Very Low | up to 4.7 |
|---|---|
| Low | 4.7 to 6.5 |
| Typical | 6.5 to 7.7 |
| High | 7.7 to 9.2 |
| Very High | over 9.2 |
WHO guideline: 10 µg/m³ (in the Very High band). UK legal limit: 40 µg/m³.
Fine particles (PM2.5): 5.7 µg/m³
PM2.5 level is Very Low, on a scale from Very Low to Very High.
Very Low means the lowest fifth of areas in England and Wales for PM2.5.
| Very Low | up to 6.0 |
|---|---|
| Low | 6.0 to 7.2 |
| Typical | 7.2 to 7.7 |
| High | 7.7 to 8.2 |
| Very High | over 8.2 |
WHO guideline: 5 µg/m³ (in the Very Low band). UK legal limit: 20 µg/m³, with a target of 10 µg/m³ in England by 2040.
The bands split every area we cover into fifths by its level, from Very Low to Very High. The map uses the same colours.
Which part of Blaenau Gwent has the cleanest air?
Abertillery has the lowest background NO₂ of the 11 areas of Blaenau Gwent, at 4.3 µg/m³. Llanhilleth has the highest, at 5.6 µg/m³. Average house prices are shown alongside, so you can weigh air quality against cost.
| Area | NO₂ | PM2.5 | NO₂ band | Average price |
|---|---|---|---|---|
| AbertilleryVery Low | 4.3 | 5.7 | Very Low | £132,100 |
| Nantyglo and BlainaVery Low | 4.4 | 5.7 | Very Low | £188,999 |
| TredegarLow | 4.9 | 5.7 | Low | £144,520 |
| BrynmawrLow | 4.9 | 5.7 | Low | £163,032 |
| CwmLow | 4.9 | 5.8 | Low | £121,585 |
| BeaufortLow | 5.2 | 5.7 | Low | £187,245 |
| RassauLow | 5.3 | 5.6 | Low | £187,711 |
| Ebbw Vale SouthLow | 5.3 | 5.8 | Low | £139,796 |
| Ebbw Vale NorthLow | 5.4 | 5.8 | Low | £150,115 |
| BadmintonLow | 5.5 | 5.7 | Low | £220,517 |
| LlanhillethLow | 5.6 | 6.1 | Low | £116,346 |
Levels in µg/m³, 2025 annual average.
How does air quality in Blaenau Gwent compare with nearby areas?
Background NO₂ in Blaenau Gwent compared with the 6 nearest other areas in Cymru / Wales.
Blaenau Gwent vs Caerphilly
- Blaenau Gwent
- NO₂ 4.9 µg/m³
- Caerphilly
- NO₂ 6.7 µg/m³
Open comparison
Blaenau Gwent vs Torfaen
- Blaenau Gwent
- NO₂ 4.9 µg/m³
- Torfaen
- NO₂ 6.7 µg/m³
Open comparison
Blaenau Gwent vs Mid Glamorgan
- Blaenau Gwent
- NO₂ 4.9 µg/m³
- Mid Glamorgan
- NO₂ 6.2 µg/m³
Open comparison
Blaenau Gwent vs Newport
- Blaenau Gwent
- NO₂ 4.9 µg/m³
- Newport
- NO₂ 10.1 µg/m³
Open comparison
Blaenau Gwent vs South Glamorgan
- Blaenau Gwent
- NO₂ 4.9 µg/m³
- South Glamorgan
- NO₂ 10.5 µg/m³
Open comparison
Blaenau Gwent vs West Glamorgan
- Blaenau Gwent
- NO₂ 4.9 µg/m³
- West Glamorgan
- NO₂ 6.1 µg/m³
Open comparison
Does this include busy roads?
No. These are background levels: yearly averages over 1 km squares, away from the immediate influence of roads. Right beside a busy road in Blaenau Gwent, NO₂ can be much higher. Councils publish roadside monitoring in their annual air quality reports.
What else do people ask about Blaenau Gwent?
More quick answers on house prices, sales, areas, green space, crime, air quality and listed buildings in Blaenau Gwent.
- What is the average house price in Blaenau Gwent?
- When did average house prices in Blaenau Gwent reach their peak?
- How many properties are being sold in Blaenau Gwent?
- What type of properties are sold in Blaenau Gwent?
- What price range do most homes sell for in Blaenau Gwent?
- What is the most expensive (and cheapest) area of Blaenau Gwent?
- How many parks and green spaces are in Blaenau Gwent?
- What is the crime rate in Blaenau Gwent?
- How many listed buildings are in Blaenau Gwent?
- How do Blaenau Gwent house prices compare with another area?
Where does this data come from?
Price information is from HM Land Registry, location boundaries are from OpenStreetMap, and households and population are from Nomis Census 2021 postcode estimates (21 March 2021). Parks and green space are from OS Open Greenspace. Contains OS data © Crown copyright and database right 2026. Crime is from police.uk street-level data. Contains public sector information licensed under the Open Government Licence v3.0. Source: police.uk. Listed buildings and scheduled monuments are from Historic England and Cadw, and conservation areas from planning.data.gov.uk. Designated Historic Asset GIS Data, The Welsh Historic Environment Service (Cadw), licensed under the Open Government Licence. Air quality is from Defra modelled background pollution maps. Contains public sector information licensed under the Open Government Licence v3.0. Source: Defra modelled background pollution, 2025.
Last updated 11 November 2026 at 00:19 with the latest Land Registry data (September 2026). The Blaenau Gwent dataset covers 4,042 postcodes.
Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.
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