---
title: "The UK Urban NO2 Network (UUNN)"
ocid: "ocds-b5fd17-f98ea72c-16bb-43e7-b09d-37180c87b599"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-f98ea72c-16bb-43e7-b09d-37180c87b599"
markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-f98ea72c-16bb-43e7-b09d-37180c87b599.md"
json_url: "https://d3tenders.com/contract/ocds-b5fd17-f98ea72c-16bb-43e7-b09d-37180c87b599.json"
source: "Contracts Finder"
current_stage: "Award"
buyer: "ENVIRONMENT AGENCY"
published: "2025-02-12"
---

# The UK Urban NO2 Network (UUNN)

Buyer: ENVIRONMENT AGENCY  
Current stage: Award  
OCID: ocds-b5fd17-f98ea72c-16bb-43e7-b09d-37180c87b599

[View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-b5fd17-f98ea72c-16bb-43e7-b09d-37180c87b599)  
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## Summary

The Environment Agency has completed the procurement process for the "UK Urban NO2 Network (UUNN)" project, classified under Air Quality Management (CPV: 90731100). The project aims to provide additional NO2 monitoring data for inclusion within the national UK compliance assessment. The procurement, an open procedure above the threshold, was finalised on 23rd December 2024, with the contract starting on 13th January 2025 and ending on 31st March 2030. The awarded contract is worth £2,036,758.77, and the services will cover multiple regions including the British Overseas Territories, Channel Islands, Europe, Isle of Man, the rest of the world, and the United Kingdom.

This tender represents a significant opportunity for businesses specialising in environmental and air quality management services to contribute to a critical national project. While this particular contract was awarded to Ricardo-AEA Limited, it demonstrates high-value potential for large-scale companies operating in the environmental sector. Businesses capable of providing advanced air quality monitoring and compliance solutions would be well-positioned to compete for similar future opportunities initiated by government agencies like the Environment Agency.

## Notice

The primary aim of the UUNN is the provision of additional NO2 monitoring data for inclusion within the national UK compliance assessment.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Contracts Finder |
| Latest notice | https://www.contractsfinder.service.gov.uk/Notice/73ddc558-e2c5-46cb-a30e-3c9993efe2a6 |
| Notice type | Award Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Open |
| Procurement method details | Open procedure (above threshold) |
| Tender suitability | Not specified |
| Awardee scale | Large |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 12 Feb 2025 |
| Submission deadline | 29 Nov 2024 |
| Future notice date | Not specified |
| Award date | 23 Dec 2024 |
| Contract period | 13 Jan 2025 - 31 Mar 2030 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | £2,036,758 |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Not specified |
| Awards status | Active |
| Contracts status | Not specified |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | ENVIRONMENT AGENCY |
| Locality | LONDON |
| Post town | South West London |
| Postcode | SW1P 4DF |
| Country | England |
| ITL 1 | TLI London |
| ITL 2 | TLI3 Inner London - West |
| ITL 3 | TLI35 Westminster and City of London |
| Local authority | Westminster |
| Electoral ward | St James's |
| Westminster constituency | Cities of London and Westminster |
| Delivery location | Not specified |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | RICARDO-AEA |

## CPV Codes

### Divisions

- 90 - Sewage, refuse, cleaning and environmental services

### Codes

- 90731100 - Air quality management

## Release History

- 12 Feb 2025 at 14:28 - Award - Award Notice - https://www.contractsfinder.service.gov.uk/Notice/73ddc558-e2c5-46cb-a30e-3c9993efe2a6

## Documents

- https://www.contractsfinder.service.gov.uk/Notice/73ddc558-e2c5-46cb-a30e-3c9993efe2a6
  12th February 2025 - Awarded contract notice on Contracts Finder
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/aea36a3c-3a57-4a1e-81fb-6510702e8a1c
  C26270_UUNN_Signed_Redacted

## Provenance

This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-b5fd17-f98ea72c-16bb-43e7-b09d-37180c87b599. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-b5fd17-f98ea72c-16bb-43e7-b09d-37180c87b599.json.