# RDE 379 -Updating and Refining the Nitrogen Decision Framework - Critical Loads

> A sourced UK public sector contract award published by Natural England.

## Key facts

- Buyer: [Natural England](/buyers/natural-england/contract-awards)
- Supplier: [Air Quality Consultants ltd](/suppliers/air-quality-consultants/public-sector-contract-awards)
- Award value: £17,400
- Award date: 5 October 2023
- Published: 1 November 2023
- Contract start: 6 October 2023
- Contract end: 19 January 2024
- Stage: awarded
- Notice ID: 5a78de3b-d6ef-4117-9762-02abd25119c3-694054
- OCID: ocds-b5fd17-949d09bc-5033-4646-a6ff-fe35471d98b7

## Description

The objectives of the 2023-2024 project are to update the existing NDF Shiny App with 1\) the most recent N deposition data, any changes to notifications or CMSi data and the recently updated critical load ranges and 2\) a walkthrough of the app's functionalities uploaded to the guidance tab\. This was awarded by Natural England\.

## Related contract awards

- [ETAFFCSFSW013 - Devon And Cornwall 1-1 On Farm Advice Programme 2026 ](/contracts/ocds-b5fd17-87b7876f-a020-4a44-8eed-8f8b33aaed56) — Natural England
- [ETAFFCSFSW012 1-1 On Farm Advice Programme 2026](/contracts/ocds-b5fd17-9bdf53c5-0c04-46de-a671-fe0da869af86) — Natural England
- [ETAFF AENorth02](/contracts/ocds-b5fd17-9eb92cdc-b242-41a2-b351-c02b25cd9089) — Natural England
- [ETAFF AEMidlands02](/contracts/ocds-b5fd17-059c3bd0-9932-4830-a295-06e2d66a6c46) — Natural England
- [RDE989 - Literature and Data Review for EV Bus Evaluation - An NO₂ Reduction P](/contracts/ocds-b5fd17-7adbe7e1-dc5c-423b-bb72-50588ab1d1ed) — Department for Environment, Food & Rural Affairs
- [RDE920 - Nature based solutions for air pollution beyond trees](/contracts/ocds-b5fd17-0ed5afb0-5541-44bd-941e-dab4d6ba51ce) — Natural England
- [RDE866 - Modelling the impact of aviation lead emissions on the surrounding popu](/contracts/ocds-b5fd17-f25721ba-2385-46b1-be6d-816bb9d187f6) — Department for Environment, Food & Rural Affairs
- [RDE914 - Improving quantification of the uncertainty in emissions of air polluta](/contracts/ocds-b5fd17-6f027413-4ff0-43c2-80e2-40cfe3c998c1) — Department for Environment, Food & Rural Affairs

## Source

[View the original notice on Contracts Finder](https://www.contractsfinder.service.gov.uk/Notice/5a78de3b-d6ef-4117-9762-02abd25119c3-694054)