Source: https://tendernation.io/opportunities/01a13bcc-9231-715c-8bac-cb7c63e9988e/gas-analysers-for-automatic-air-quality-monitoring-networks-2025-lot-2

awarded GB open procedure Suitable for SMEs

# Gas Analysers for Automatic Air Quality Monitoring Networks 2025 Lot 2

[Environment Agency](https://tendernation.io/buyers/environment-agency)

Estimated value

£1

Published

27 Jul 2026

Deadline

Closed

3 Jul 2025

## Who can bid

- Buyer says suitable for SMEs

    The buyer ticked “suitable for SMEs” on the notice. Anyone can still bid.
- Small contract value

    Valued under £135,018 including VAT, the lowest Procurement Act threshold for goods and services.
- Split into 3 lots

    You can usually bid for just the lots you can deliver.
- Open procedure

    Anyone can submit a full tender; there is no shortlisting stage.

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## About this tender

The Environment Agency work to create better places for people and wildlife and support sustainable development. EA is an executive non-departmental body, sponsored by the Department for Environment, Food and Rural Affairs. For further information please visit Environment Agency - GOV.UK (Environment Agency - GOV.UK ([gov.uk](https://www.gov.uk)).

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) (analysers that measure Nitrogen Monoxide (NO) and nitrogen dioxide (NO2)), ozone (O3), sulphur dioxide (SO2) and carbon monoxide (CO). Further details of the current network are available on [uk-air.defra.gov.uk](http://uk-air.defra.gov.uk/).

The Environment Agency requires the supply and installation of the following air quality monitoring instruments:

- Lot 2 - 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.

The decision to formally stop the Gas Analyser Lot 2 - SO2 procurement has been made, due to the forthcoming SO2 network reductions

Read full description

## CPV classification

Analysers

Source

Find a Tender (UK) · Notice ocds-h6vhtk-050a0f-2026-07-27T09:19:06+01:00

[View official notice](https://www.find-tender.service.gov.uk/Notice/ocds-h6vhtk-050a0f-2026-07-27T09:19:06+01:00)

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