What's the air quality in North Somerset? NO₂ 7.9 µg/m³
In 2025 the average resident of North Somerset lived with background NO₂ of 7.9 µg/m³, High for England and Wales and below the WHO guideline of 10. PM2.5 was 7.6 µg/m³, Typical for England and Wales and 1.5 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
- 7.6 µg/m³
- NO₂ for England and Wales
- High
- 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 North SomersetIs the air quality good in North Somerset?
Background NO₂ in North Somerset is 7.9 µg/m³, below the WHO guideline of 10, and higher than the typical area (7.2). That puts it in the High band. Background PM2.5 in North Somerset is 7.6 µg/m³, 1.5 times the WHO guideline of 5, and higher than the typical area (7.4). That puts it in the Typical 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): 7.9 µg/m³
NO₂ level is High, on a scale from Very Low to Very High.
High means the second-highest 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): 7.6 µg/m³
PM2.5 level is Typical, on a scale from Very Low to Very High.
Typical means the middle 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 North Somerset has the cleanest air?
Blagdon has the lowest background NO₂ of the 39 areas of North Somerset, at 4.4 µg/m³. Portbury has the highest, at 12.5 µg/m³. Average house prices are shown alongside, so you can weigh air quality against cost.
| Area | NO₂ | PM2.5 | NO₂ band | Average price |
|---|---|---|---|---|
| BlagdonVery Low | 4.4 | 6.4 | Very Low | £683,892 |
| BurringtonLow | 4.9 | 6.4 | Low | £589,416 |
| ChurchillLow | 5.6 | 6.7 | Low | £469,828 |
| ButcombeLow | 5.6 | 6.8 | Low | £442,000 |
| Winscombe and SandfordLow | 5.6 | 6.8 | Low | £447,349 |
| KewstokeLow | 6.3 | 7.4 | Low | £456,967 |
| WringtonLow | 6.3 | 6.8 | Low | £415,221 |
| WinfordLow | 6.4 | 7.0 | Low | £488,240 |
| BleadonLow | 6.5 | 7.3 | Low | £435,076 |
| DundryTypical | 6.9 | 7.2 | Typical | £543,458 |
| CongresburyTypical | 7.0 | 7.1 | Typical | £409,628 |
| CleeveTypical | 7.0 | 7.0 | Typical | £517,444 |
| BrockleyTypical | 7.1 | 6.9 | Typical | £1,295,000 |
| BanwellTypical | 7.2 | 7.3 | Typical | £373,666 |
| HuttonTypical | 7.2 | 7.4 | Typical | £340,909 |
| Barrow GurneyTypical | 7.3 | 7.2 | Typical | £738,545 |
| Wick St. LawrenceTypical | 7.3 | 7.6 | Typical | £359,312 |
| Walton-in-GordanoTypical | 7.4 | 7.5 | Typical | £1,199,975 |
| Weston-super-MareTypical | 7.5 | 7.6 | Typical | £264,358 |
| BackwellHigh | 7.8 | 7.2 | High | £546,631 |
| YattonHigh | 7.9 | 7.4 | High | £372,182 |
| LoxtonHigh | 7.9 | 7.3 | High | £365,000 |
| Wraxall and FailandHigh | 8.0 | 7.4 | High | £631,652 |
| NailseaHigh | 8.1 | 7.5 | High | £373,588 |
| Weston-in-GordanoHigh | 8.2 | 7.8 | High | £638,750 |
| PuxtonHigh | 8.2 | 7.4 | High | £620,750 |
| LockingHigh | 8.3 | 7.5 | High | £289,728 |
| Flax BourtonHigh | 8.7 | 7.3 | High | £918,750 |
| Long AshtonHigh | 8.7 | 7.4 | High | £601,074 |
| TickenhamHigh | 8.7 | 7.7 | High | £1,017,222 |
| Abbots LeighHigh | 8.7 | 7.5 | High | £1,129,250 |
| ClevedonHigh | 8.8 | 7.9 | High | £395,253 |
| PortisheadHigh | 8.8 | 7.8 | High | £398,909 |
| KennHigh | 9.2 | 7.9 | High | £566,800 |
| Kingston SeymourVery High | 9.6 | 7.7 | Very High | £705,000 |
| St. GeorgesVery High | 10.2 | 7.9 | Very High | £277,821 |
| Clapton-in-GordanoVery High | 10.5 | 7.9 | Very High | £515,000 |
| Pill and Easton-in-GordanoVery High | 10.7 | 7.9 | Very High | £392,250 |
| PortburyVery High | 12.5 | 7.9 | Very High | £517,714 |
Levels in µg/m³, 2025 annual average.
How does air quality in North Somerset compare with nearby areas?
Background NO₂ in North Somerset compared with the 6 nearest other areas in England.
North Somerset vs West of England
- North Somerset
- NO₂ 7.9 µg/m³
- West of England
- NO₂ 9.8 µg/m³
Open comparison
North Somerset vs Somerset
- North Somerset
- NO₂ 7.9 µg/m³
- Somerset
- NO₂ 6.2 µg/m³
Open comparison
North Somerset vs Wiltshire
- North Somerset
- NO₂ 7.9 µg/m³
- Wiltshire
- NO₂ 6.8 µg/m³
Open comparison
North Somerset vs Gloucestershire
- North Somerset
- NO₂ 7.9 µg/m³
- Gloucestershire
- NO₂ 8.0 µg/m³
Open comparison
North Somerset vs Dorset
- North Somerset
- NO₂ 7.9 µg/m³
- Dorset
- NO₂ 5.1 µg/m³
Open comparison
North Somerset vs Herefordshire
- North Somerset
- NO₂ 7.9 µg/m³
- Herefordshire
- NO₂ 6.3 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 North Somerset, NO₂ can be much higher. Councils publish roadside monitoring in their annual air quality reports.
What else do people ask about North Somerset?
More quick answers on house prices, sales, areas, green space, crime, air quality and listed buildings in North Somerset.
- What is the average house price in North Somerset?
- When did average house prices in North Somerset reach their peak?
- How many properties are being sold in North Somerset?
- What type of properties are sold in North Somerset?
- What price range do most homes sell for in North Somerset?
- What is the most expensive (and cheapest) area of North Somerset?
- How many parks and green spaces are in North Somerset?
- What is the crime rate in North Somerset?
- How many listed buildings are in North Somerset?
- How do North Somerset 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. © Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. Source: planning.data.gov.uk, Open Government Licence v3.0. 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 00:59 with the latest Land Registry data (September 2026). The North Somerset dataset covers 10,787 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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