Scope
Reference
C28897
Description
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 (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 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 4 gas analysers to measure the following gases: oxides of nitrogen (NOX), nitrogen dioxide (NO2), ozone (O3) and sulphur dioxide (SO2). The gas analysers will in general be used on the UK's largest Air Quality Monitoring Network the AURN and the associated Automatic London Network (ALN).
The AURN and ALN currently consists of 158 NOX analysers, 92 O3 analysers, 28 SO2 and 7 CO analysers. These primarily consist of many Environment Agency owned instruments; however, some are owned by Local Authorities. The AURN is managed by two Central Management and Control Units (CMCUs). The current incumbent contractor is Bureau Veritas who manages the national CMCU, and the London CMCU known as the ALN. The CMCU contractors work together with a Quality Assurance and Quality Control (QAQC) teams operated by Ricardo AEA and NPL under contract to the Agency. These organisations have responsibility for commissioning, overseeing site changes and installations to ensure the delivery of data to meet legislative compliance requirements and to inform the general public on air pollution quality across the 48 UK air quality zones.
The Environment Agency requires the supply and installation of the following air quality monitoring instruments:
• Lot 1 - 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.
• 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.
• Lot 3 - 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.
Total value (estimated)
- £1 excluding VAT
- £1.20 including VAT
Above the relevant threshold
Contract dates (estimated)
- 1 November 2025 to 31 October 2030
- 5 years
Main procurement category
Goods
CPV classifications
- 38434000 - Analysers
Contract locations
- UK - United Kingdom
Lot 1. NO and NO2 instrument
Description
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"
Lot value (estimated)
- £0.50 excluding VAT
- £0.60 including VAT
Same for all lots
CPV classifications, contract locations and contract dates are shown in the Scope section, because they are the same for all lots.
Lot 2. SO2 analyser
Description
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".
Lot value (estimated)
- £0.25 excluding VAT
- £0.30 including VAT
Same for all lots
CPV classifications, contract locations and contract dates are shown in the Scope section, because they are the same for all lots.
Lot 3. Ozone analyser
Description
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'.
Lot value (estimated)
- £0.25 excluding VAT
- £0.30 including VAT
Same for all lots
CPV classifications, contract locations and contract dates are shown in the Scope section, because they are the same for all lots.
Participation
Particular suitability
Lot 1. NO and NO2 instrument
Lot 2. SO2 analyser
Lot 3. Ozone analyser
Small and medium-sized enterprises (SME)
Submission
Enquiry deadline
19 June 2025, 3:00pm
Submission type
Tenders
Tender submission deadline
26 June 2025, 3:00pm
Submission address and any special instructions
https://atamis-9529.my.site.com/s/Welcome
Submissions must be made via the Authority's eSourcing platform.
Tenders may be submitted electronically
Yes
Languages that may be used for submission
English
Award decision date (estimated)
24 October 2025
Award criteria
| Name | Type | Weighting |
|---|---|---|
| Technical | Quality | 60% |
| Price | Price | 40% |
Other information
Conflicts assessment prepared/revised
Yes
Procedure
Procedure type
Competitive flexible procedure
Competitive flexible procedure description
This procurement is being conducted as a Competitive Flexible Procedure in accordance with the Procurement Act 2023. Completion and submission of all documents will be conducted via the Authority's eSourcing system.
There will be six stages as follows:
Stage One/Two - Conditions of Participation
At this stage of the procurement Tenderers will be asked to submit their Procurement Specific Questionnaire and the response to the Conditions of Participation.
1. Conditions of Participation and Procurement Specific Questionnaire
Tenderers must complete a series of questions to allow the Authority to confirm their eligibility to participate in the competition, together with core supplier information, additional exclusions and debarment information.
2. Form of Tender
Suppliers must upload their Form of Tender otherwise their submission will not be considered.
Tenderers will not progress to the Technical Response stage if they do not pass these stages.
Stage Three/Four - Tender Stage
3. Technical Response
Tenderers must respond to a series of technical questions as outlined on the Authority's eSourcing system. Responses will be evaluated as described in this document and the Authority's eSourcing system. If Tenderers fail to meet any minimum scoring requirements, they will be eliminated from the competition and not progress to having their Commercial Response assessed.
4. Commercial Response
Tenderers must complete the commercial envelope as detailed on the Authority's eSourcing system. Responses will be evaluated as described in this document and the Authority's eSourcing system.
Stage Five - Final Score
Scores from the technical and commercial sections will be added together to arrive at a total weighted score. The most advantageous tenders for each lot will be the Tenderers with the highest final scores. Tenderers will be notified about whether they have been successful in progressing to the next stage (trial phase).
Stage Six - Trial
To ensure any new analyser models purchased can be seamlessly added into the AURN network, we have included a trial phase. Contract award is dependent on the satisfactory completion of and success of our trial pass criteria. Rental of two instruments will be required to conduct a working trial. The trial will be a minimum of one month, maximum three months, after delivery so the two instruments can be tested by our Quality Assurance contractor.
Documents
Associated tender documents
https://atamis-9529.my.site.com/s/Welcome
Submissions must be made via the Authority's eSourcing platform
Contracting authority
Environment Agency
- Public Procurement Organisation Number: PNWW-1475-NYLN
Seacole Building, 2 Marsham Street
London
SW1P 4DF
United Kingdom
Email: procurement@defra.gov.uk
Region: UKI32 - Westminster
Organisation type: Public authority - central government
Other organisation
These organisations are carrying out the procurement, or part of it, on behalf of the contracting authorities.
Department for Environment Food & Rural Affairs
Summary of their role in this procurement: Procurement facilitated via Defra Group Commercial
- Public Procurement Organisation Number: PNBD-3289-CDGX
Seacole Building, 2 Marsham Street
London
SW1P 4DF
United Kingdom
Email: procurement@defra.gov.uk
Region: UKI32 - Westminster