New monitoring instruments in the national networks (February to April 2025)

News published: 09/05/2025

Defra’s Automatic and Rural monitoring network (AURN) is expanding during the next 3 years to include new stations and the monitoring of additional pollutants at existing sites. This expansion is in support of new legislation in England establishing the PERT (Population Exposure Reduction Target (PERT) and Annual Mean Concentration Target (AMCT). More information about these targets and the progress towards them can be found on UK-AIR at the PM Targets page. 

Since March 2025, the following new instruments have become operational:
(Table scrolls sideways to show link to full site metadata)

Site Code	Site Name	Site Classification	AQ Zone	Start Date	New Site*	New Instrument**	Pollutants	Full site information page
UKA01096	Southend Shoeburyness	Urban Background	Southend Urban Area	18/03/2025	✓		PM10	https://uk-air.defra.gov.uk/networks/site-info?site_id=SOUS
UKA01096	Southend Shoeburyness	Urban Background	Southend Urban Area	18/03/2025	✓		PM2.5	https://uk-air.defra.gov.uk/networks/site-info?site_id=SOUS
UKA01101	Cheltenham A40 Gloucester Road	Urban Traffic	South West	21/03/2025	✓		PM2.5	https://uk-air.defra.gov.uk/networks/site-info?site_id=CHGR
UKA01098	Worcester Tolladine	Urban Background	West Midlands	24/03/2025	✓		PM10	https://uk-air.defra.gov.uk/networks/site-info?site_id=WORT
UKA01098	Worcester Tolladine	Urban Background	West Midlands	24/03/2025	✓		PM2.5	https://uk-air.defra.gov.uk/networks/site-info?site_id=WORT
UKA01097	Farnborough Cherrywood	Urban Background	South East	26/03/2025	✓		PM10	https://uk-air.defra.gov.uk/networks/site-info?site_id=FARC
UKA01097	Farnborough Cherrywood	Urban Background	South East	26/03/2025	✓		PM2.5	https://uk-air.defra.gov.uk/networks/site-info?site_id=FARC
UKA01102	Gloucester Tredworth	Urban Background	South West	01/04/2025	✓		PM10	https://uk-air.defra.gov.uk/networks/site-info?site_id=GLOT
UKA01102	Gloucester Tredworth	Urban Background	South West	01/04/2025	✓		PM2.5	https://uk-air.defra.gov.uk/networks/site-info?site_id=GLOT
UKA01099	Tameside A635 Manchester Road	Urban Traffic	Greater Manchester Urban Area	01/04/2025	✓		PM2.5	https://uk-air.defra.gov.uk/networks/site-info?site_id=TAMM
UKA00381	Scunthorpe Town	Urban Industrial	Yorkshire & Humberside	07/04/2025		✓	PM2.5	https://uk-air.defra.gov.uk/networks/site-info?site_id=SCN2

* A completely new monitoring site has been established

** A new instrument has been added to an existing air quality monitoring station

---

---