---
title: "Gas Analysers for Automatic Air Quality Monitoring Networks 2025 - LOT 1 ONLY"
ocid: "ocds-h6vhtk-050a0f"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-050a0f"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-050a0f.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-050a0f.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "ENVIRONMENT AGENCY"
published: "2026-03-27"
---

# Gas Analysers for Automatic Air Quality Monitoring Networks 2025 - LOT 1 ONLY

Buyer: ENVIRONMENT AGENCY  
Current stage: Award  
OCID: ocds-h6vhtk-050a0f

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## Summary

The Environment Agency, operating under the Department for Environment, Food and Rural Affairs (Defra), has recently completed a procurement process for "Gas Analysers for Automatic Air Quality Monitoring Networks 2025 - LOT 1 ONLY." This contract, valued at approximately £1.55 million gross, involves supplying and installing analysers for measuring nitrogen oxides, nitrogen dioxide, ozone, and sulphur dioxide, critical to the UK's compliance with air quality standards. Located in London, with procurement facilitated via Defra Group Commercial, the process followed an open and competitive flexible procedure. Key dates include the contract signing on 18th March 2026, with the procurement process initiated earlier on 4th March 2026, and the contract to run until 17th March 2031.

This tender presents substantial opportunities for businesses specialising in environmental monitoring equipment, particularly those capable of providing innovative solutions to enhance the UK’s air quality measurement network. Small and Medium-sized Enterprises (SMEs) interested in supplying high-quality, compliant gas analysers, including those compliant with BS EN standards, could find this contract an ideal growth opportunity. The focus on advanced air quality management aligns with current environmental commitments, making it a strategic fit for organisations looking to expand their presence in the governmental sector of environmental services.

## Notice

The UK Automatic Urban and Rural Network (AURN) is the Environment Agency's compliance network for the reporting of pollutant concentrations the Air Quality Directive (AQD) 2008/50/EC. This was transposed by respective Air Quality Standard Regulations across the UK and the Devolved Administrations. The network provides measurements of a range of pollutants including Particulate size fractions (PM10 and PM2.5) and the following gases: oxides of nitrogen (NOX), nitrogen dioxide (NO2), ozone (O3), sulphur dioxide (SO2) and carbon monoxide (CO). Further details of the current network are available on http://uk-air.defra.gov.uk/. The Environment Agency on behalf of the Department for Environment, Food and Rural Affairs (Defra), Affiliated Local Authorities and Devolved Administrations is seeking to procure gas analysers to measure the following gases: oxides of nitrogen (NOX), nitrogen dioxide (NO2), ozone (O3) and sulphur dioxide (SO2).

### Lot Information

NO and NO2 instrument

A NO and NO2 instrument which is compliant or equivalent with "BS EN 14211:2012 Ambient Air Quality" which states that "standard method for the measurement of the concentration of nitrogen dioxide and nitrogen monoxide by Chemiluminescent"

SO2 analyser

An SO2 analyser which is compliant or equivalent with "BS EN 14212:2012 Ambient Air Quality" which states that "standard method for the measurement of the concentration of sulphur dioxide by ultra-violet fluorescence".

Ozone analyser

An Ozone analyser which is compliant or equivalent with "BS EN 14625:2012 Ambient Air Quality" which states that "standard method for the measurement of the concentration of ozone by ultraviolet photometry'.

### Planning Information

F01:PIN https://www.find-tender.service.gov.uk/Notice/019939-2024 II.1.4) Short description The Environment Agency requires the supply and installation of the following air quality monitoring instruments: • NOx and NO2 analyser which is compliant or equivalent with “BS EN 14211:2012 Ambient Air Quality” which uses the standard method for the measurement of the concentration of nitrogen dioxide and nitrogen monoxide by Chemiluminescent. • SO2 analyser which is compliant or equivalent with “BS EN 14212:2012 Ambient Air Quality” which uses the standard method for the measurement of the concentration of sulphur dioxide by ultra-violet fluorescence.  • Ozone analyser which is compliant or equivalent with “BS EN 14625:2012 Ambient Air Quality” which uses the standard method for the measurement of the concentration of ozone by ultraviolet photometry.  Approximately 23 NOx, 2 SO2 and 30 O3 analysers will be required before 31st March 2025. If you have an interest in this requirement please get in touch with the procurement team, no later than close on Friday 12th July 2024, at: DGC-LAWW-buyer@defra.gov.uk The team are interested in gaining some information from the market, so any interested party will receive a questionnaire by email with some commercial and technical questions. This will be sent w/c 15th July 2024.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/028377-2026 |
| Notice type | UK7 - Contract Details Notice |
| Procurement type | Standard |
| Procurement category | Goods |
| Procurement method | Open |
| Procurement method details | Competitive flexible procedure |
| Tender suitability | SME |
| Awardee scale | SME |
| All stages | Planning, Tender, Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 27 Mar 2026 |
| Submission deadline | 3 Jul 2025 |
| Future notice date | 8 May 2025 |
| Award date | 27 Feb 2026 |
| Contract period | 18 Mar 2026 - 17 Mar 2031 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £1 |
| Lots value | Not specified |
| Awards value | £1,293,965 |
| Contracts value | £1,293,965 |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Active, Complete |
| Awards status | Active |
| Contracts status | Active |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | ENVIRONMENT AGENCY |
| Additional buyers | DEPARTMENT FOR ENVIRONMENT FOOD & RURAL AFFAIRS |
| 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 | ENVEA |

## CPV Codes

### Divisions

- 38 - Laboratory, optical and precision equipments (excl. glasses)
- 90 - Sewage, refuse, cleaning and environmental services

### Codes

- 38434000 - Analysers
- 90731100 - Air quality management

## Release History

- 27 Mar 2026 at 10:48 - Award - UK7 - Contract Details Notice - https://www.find-tender.service.gov.uk/Notice/028377-2026
- 4 Mar 2026 at 15:13 - Award - UK6 - Contract Award Notice - https://www.find-tender.service.gov.uk/Notice/019580-2026
- 24 Jun 2025 at 14:31 - TenderUpdate - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/034805-2025
- 27 May 2025 at 10:37 - Tender - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/027663-2025
- 30 Apr 2025 at 11:08 - Planning - UK2 - Preliminary Market Engagement Notice - https://www.find-tender.service.gov.uk/Notice/017935-2025

## Documents

- https://www.find-tender.service.gov.uk/Notice/028377-2026
  27th March 2026 - Contract details notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/019580-2026
  4th March 2026 - Contract award notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/034805-2025
  24th June 2025 - Tender notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/027663-2025
  27th May 2025 - Tender notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/017935-2025
  30th April 2025 - Preliminary market engagement notice on Find a Tender
- https://atamis-9529.my.site.com/s/Welcome
  Submissions must be made via the Authority's eSourcing platform

## Notice URLs

- http://envea.global
- http://uk-air.defra.gov.uk/
- https://atamis-9529.my.site.com/s/WelcomeSubmissionsmustbemadeviatheAuthority'seSourcingplatform.
- https://defra-family.force.com/s/Welcome
- https://www.find-tender.service.gov.uk/Notice/019939-2024
- https://www.legislation.gov.uk/ukpga/2023/54/contents

## 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-h6vhtk-050a0f. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-050a0f.json.