# Expansion of the Particle Concentrations & Numbers Network - SMPS

> Tender notice from UK public-sector procurement sources.

## Key facts

- Public buyer: [DEFRA](/buyers/defra/contract-awards)
- Tender value: £400,000
- Published: 10 March 2023
- Planned start: 25 September 2023
- Planned end: 24 September 2025
- Stage: open_tender
- Procurement category: goods
- Notice ID: e7fef02c-4c44-49e8-80ad-89b85633bc8e-623331
- OCID: ocds-b5fd17-e6ccec24-55ff-4580-9803-aa4e4c60c78b

## Description

The EA Monitoring Contracts team are seeking a call off purchasing contract for analysers that can measure particle count in different size bins \(instruments known as Scanning Mobility Particle Sizers\)\. New SMPS \(Scanning Mobility Particle Sizers\) analysers for expansion of the current Air Quality Networks\.

## Related contract awards

- [Mids - AOMR Lot 2 - Works Arising from Hydrometric Asset Surveys 2026/2027](/contracts/ocds-b5fd17-7df7db6b-a6f2-42da-bbd6-9ac45210d862): DEFRA
- [South East - FRAM lot 9c - Client Support Services - Competitive Tender - Mott MacDonald Limited](/contracts/ocds-b5fd17-eacb09a0-dc7d-4dae-a39c-04320221a4cd): Defra
- [South East - FRAM lot 9c - Client Support Services - Competitive Tender - AECOM](/contracts/ocds-b5fd17-2cdc927a-7eb6-45a7-8a1c-506468289da9): Defra

## Source

[View the original notice on Contracts Finder](https://www.contractsfinder.service.gov.uk/Notice/e7fef02c-4c44-49e8-80ad-89b85633bc8e-623331)