---
title: "RDE814 - Using inverse dispersion modelling to quantify methane emissions from l"
ocid: "ocds-b5fd17-f82ee143-195e-4112-a7de-da1dfb5e6fe5"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-f82ee143-195e-4112-a7de-da1dfb5e6fe5"
markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-f82ee143-195e-4112-a7de-da1dfb5e6fe5.md"
json_url: "https://d3tenders.com/contract/ocds-b5fd17-f82ee143-195e-4112-a7de-da1dfb5e6fe5.json"
source: "Contracts Finder"
current_stage: "Award"
buyer: "ENVIRONMENT AGENCY"
published: "2025-09-16"
---

# RDE814 - Using inverse dispersion modelling to quantify methane emissions from l

Buyer: ENVIRONMENT AGENCY  
Current stage: Award  
OCID: ocds-b5fd17-f82ee143-195e-4112-a7de-da1dfb5e6fe5

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## Summary

The Environment Agency, headquartered in London, has completed the procurement process for the project titled "RDE814 - Using inverse dispersion modelling to quantify methane emissions from landfill sites." This contract, classified under research and development consultancy services, was secured by Air Quality Consultants Ltd for a total value of £59,800. The procurement was conducted using a selective method, specifically a call-off from a framework agreement. This award stage was reached on 12th September 2025. The contract period began on 11th September 2025 and is scheduled to end on 13th March 2026, with the work designed to cover various locations worldwide including the British Overseas Territories, Channel Islands, Isle of Man, and the UK itself.

This tender offers significant opportunities for businesses specialising in environmental science and consultancy, particularly those experienced in the field of air quality and emissions modelling. Although the procurement process has concluded, understanding the framework and successful bid can assist similar businesses in pursuing future opportunities with the Environment Agency. Companies equipped with the capability to deliver robust, auditable methane emission assessments using advanced modelling techniques would be well-suited to engage in such tenders, promoting business growth and expanding service offerings in the realm of environmental consultancy. Although this particular tender was not marked as suitable for SMEs or voluntary, community and social enterprises (VCSEs), such organisations may still focus on building requisite capabilities and partnerships to participate in similar future opportunities.

## Notice

The purpose of this project is to enable inverse dispersion modelling (IDM) to be undertaken for landfill methane quantification in an auditable manner with a robust reported uncertainty. Contract awarded by Defra.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Contracts Finder |
| Latest notice | https://www.contractsfinder.service.gov.uk/Notice/b73f5f84-9e08-438a-be39-77230f3a90d8 |
| Notice type | Award Notice |
| Procurement type | Framework |
| Procurement category | Services |
| Procurement method | Selective |
| Procurement method details | Call-off from a framework agreement |
| Tender suitability | Not specified |
| Awardee scale | Not specified |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 16 Sep 2025 |
| Submission deadline | 10 Sep 2025 |
| Future notice date | Not specified |
| Award date | 11 Sep 2025 |
| Contract period | 10 Sep 2025 - 13 Mar 2026 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £59,800 |
| Lots value | Not specified |
| Awards value | £59,800 |
| 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 | AIR QUALITY CONSULTANTS |

## CPV Codes

### Divisions

- 73 - Research and development services and related consultancy services

### Codes

- 73200000 - Research and development consultancy services

## Release History

- 16 Sep 2025 at 13:47 - Award - Award Notice - https://www.contractsfinder.service.gov.uk/Notice/b73f5f84-9e08-438a-be39-77230f3a90d8

## Documents

- https://www.contractsfinder.service.gov.uk/Notice/b73f5f84-9e08-438a-be39-77230f3a90d8
  16th September 2025 - Awarded contract notice on Contracts Finder

## 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-f82ee143-195e-4112-a7de-da1dfb5e6fe5. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-b5fd17-f82ee143-195e-4112-a7de-da1dfb5e6fe5.json.