Air Quality in Mid Sussex
Maximum modelled annual-mean 9 μg/m³ PM2.5 and 18 μg/m³ NO2 in Mid Sussex (DEFRA 2024), with ONS life expectancy of 83.3 years. Part of West Sussex.
What is the air quality in Mid Sussex?
In Mid Sussex, the highest modelled annual-mean concentrations in 2024 were 9 μg/m³ for PM2.5 and 18 μg/m³ for NO2, per DEFRA's UK-AIR Local Authority compliance data, and ONS life expectancy at birth is 83.3 years. The WHO 2021 annual-mean guidelines are 5 μg/m³ (PM2.5) and 10 μg/m³ (NO2).
| Pollutant | Mid Sussex (max annual mean) | Compliance | WHO 2021 | UK limit |
|---|---|---|---|---|
| PM2.5 | 9 μg/m³ | Compliant | 5 μg/m³ | 20 μg/m³ |
| NO2 | 18 μg/m³ | Compliant | 10 μg/m³ | 40 μg/m³ |
Mid Sussex within West Sussex
West Sussex scores 69.1/100 on the Gera Healthy-Place Index (rank 40), with 98.7% of GP practices rated Good or Outstanding by the CQC and life expectancy of 82.5 years.
See the full Healthy-Place profile for West Sussex →Air quality in Mid Sussex: FAQs
- What is the air pollution level in Mid Sussex?
- The maximum modelled annual-mean air pollution in Mid Sussex in 2024 was 9 μg/m³ for fine particulate matter (PM2.5) and 18 μg/m³ for nitrogen dioxide (NO2), from DEFRA UK-AIR compliance data. DEFRA reports the maximum across the authority for limit-value assessment; the WHO 2021 guideline annual means are 5 μg/m³ (PM2.5) and 10 μg/m³ (NO2).
- What is the life expectancy in Mid Sussex?
- Life expectancy at birth in Mid Sussex is 83.3 years (combined male and female, ONS). This is a population period estimate, not a prediction for any individual.
- Where does Mid Sussex sit within the Healthy-Place ranking?
- Mid Sussex is a lower-tier district within West Sussex, which scores 69.1/100 on the Gera Healthy-Place Index (rank 40) and has 98.7% of GP practices rated Good or Outstanding by the CQC. The Healthy-Place Index is computed at upper-tier authority level because air, life expectancy and GP-access data align there.
Healthcare in Mid Sussex
A GeraClinic UK-registered clinician can see you by secure video from anywhere in the UK — useful for air-quality-related concerns such as asthma or COPD.
Contains public sector information published by Gera Systems and licensed under the Open Government Licence v3.0 (source data). Source: Gera Healthy-Place Index — composite of DEFRA + ONS + CQC open data (Air 2024 calendar year; life expectancy 2017-19; GP ratings 2026-06-01, published 19 June 2026).