# PM2\.5 Automatic Urban and Rural Air Quality Monitoring Network Expansion - CMCU

> Tender notice from UK public-sector procurement sources.

## Key facts

- Public buyer: [Defra](/buyers/defra/contract-awards)
- Tender value: £2,880,000
- Published: 20 December 2023
- Planned start: 29 March 2024
- Planned end: 30 March 2029
- Stage: open_tender
- Procurement category: services
- Notice ID: 3a3a86e3-9956-4035-a265-b00af7d72ca6-708889
- OCID: ocds-b5fd17-985e4e20-2bfc-4b39-bd17-61e19bf0280b

## Description

The procurement documents are available for unrestricted and full direct access, free of charge, at https://defra-family\.force\.com/s/Welcome Any questions, requests to participate or tender submissions must be submitted electronically via this portal\. The Central Management and Co-Ordination Units \(CMCU's\) are responsible for the management of the national network air pollution monitoring sites throughout the United Kingdom \(UK\), the automatic collection and retrieval of data from these sites and forward passage of data \(to a separate Defra Supplier, the DDU Supplier, who has responsibility for wider dissemination of data , and to the QAQC Supplier for ratification\)\. The PM2\.5 AURN Expansion CMCU contract is currently planned to be for 104 new sites anticipated to be established between 2024 - 2026\. This procurement will enable the AURN to: • Inform the public about air quality in near-real time\. • Provide data for comparison with statutory air quality standards, objectives, target and limit values\. • Inform and support the development of cost-effective planning solutions and identify long-term trends and sources of pollution\. • Inform policy development\. • Provide data for use by the scientific community in research\. • Enhance our understanding of atmospheric chemistry\.

## Related contract awards

- [Corporate Eyecare Services](/contracts/ocds-b5fd17-078b925a-59f4-474d-bf4e-48051eb82ba4): DEFRA
- [ASITE Licence 2026/27](/contracts/ocds-b5fd17-291e51ca-ecdf-4843-baa4-255a919e0326): Defra
- [Order for Laboratory Equipment for LSBA and B940](/contracts/ocds-b5fd17-bbb45483-8e90-47c6-8d1d-4939267a1d73): DEFRA

## Source

[View the original notice on Contracts Finder](https://www.contractsfinder.service.gov.uk/Notice/3a3a86e3-9956-4035-a265-b00af7d72ca6-708889)