Gas Analysers for Automatic Air Quality Monitoring Networks 2025

{
  "buyer": {
    "id": "GB-PPON-PNWW-1475-NYLN",
    "name": "Environment Agency"
  },
  "date": "2025-05-27T11:37:24+01:00",
  "id": "027663-2025",
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      "address": {
        "country": "GB",
        "countryName": "United Kingdom",
        "locality": "London",
        "postalCode": "SW1P 4DF",
        "region": "UKI32",
        "streetAddress": "Seacole Building, 2 Marsham Street"
      },
      "contactPoint": {
        "email": "procurement@defra.gov.uk"
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      "details": {
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            "scheme": "UK_CA_TYPE"
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      "id": "GB-PPON-PNWW-1475-NYLN",
      "identifier": {
        "id": "PNWW-1475-NYLN",
        "scheme": "GB-PPON"
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      "name": "Environment Agency",
      "roles": [
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    {
      "address": {
        "country": "GB",
        "countryName": "United Kingdom",
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        "postalCode": "SW1P 4DF",
        "region": "UKI32",
        "streetAddress": "Seacole Building, 2 Marsham Street"
      },
      "contactPoint": {
        "email": "procurement@defra.gov.uk"
      },
      "id": "GB-PPON-PNBD-3289-CDGX",
      "identifier": {
        "id": "PNBD-3289-CDGX",
        "scheme": "GB-PPON"
      },
      "name": "Department for Environment Food \u0026 Rural Affairs",
      "roleDetails": "Procurement facilitated via Defra Group Commercial",
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  ],
  "tag": [
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  "tender": {
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    "awardPeriod": {
      "endDate": "2025-10-24T23:59:59+01:00"
    },
    "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).\nThe UK Automatic Urban and Rural Network (AURN) is the Environment Agency\u0027s 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/.\nThe 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\u0027s largest Air Quality Monitoring Network the AURN and the associated Automatic London Network (ALN).\nThe 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.\nThe Environment Agency requires the supply and installation of the following air quality monitoring instruments:\n\u2022 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.\n\u2022 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.\u202f\n\u2022 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.\u202f",
    "documents": [
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        "description": "Not published",
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        "description": "Submissions must be made via the Authority\u0027s eSourcing platform",
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        "id": "L-1",
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      {
        "datePublished": "2025-05-27T11:37:24+01:00",
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    "enquiryPeriod": {
      "endDate": "2025-06-19T15:00:00+01:00"
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    "id": "C28897",
    "items": [
      {
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            "description": "Analysers",
            "id": "38434000",
            "scheme": "CPV"
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    "legalBasis": {
      "id": "2023/54",
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        "contractPeriod": {
          "endDate": "2030-10-31T23:59:59Z",
          "startDate": "2025-11-01T00:00:00Z"
        },
        "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\"",
        "id": "1",
        "status": "active",
        "suitability": {
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        },
        "title": "NO and NO2 instrument",
        "value": {
          "amount": 0.5,
          "amountGross": 0.6,
          "currency": "GBP"
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      {
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        },
        "contractPeriod": {
          "endDate": "2030-10-31T23:59:59Z",
          "startDate": "2025-11-01T00:00:00Z"
        },
        "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\".",
        "id": "2",
        "status": "active",
        "suitability": {
          "sme": true
        },
        "title": "SO2 analyser",
        "value": {
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      {
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        "contractPeriod": {
          "endDate": "2030-10-31T23:59:59Z",
          "startDate": "2025-11-01T00:00:00Z"
        },
        "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\u0027.",
        "id": "3",
        "status": "active",
        "suitability": {
          "sme": true
        },
        "title": "Ozone analyser",
        "value": {
          "amount": 0.25,
          "amountGross": 0.3,
          "currency": "GBP"
        }
      }
    ],
    "mainProcurementCategory": "goods",
    "procedure": {
      "features": "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\u0027s eSourcing system.\nThere will be six stages as follows:\nStage One/Two - Conditions of Participation\nAt this stage of the procurement Tenderers will be asked to submit their Procurement Specific Questionnaire and the response to the Conditions of Participation.\n1. Conditions of Participation and Procurement Specific Questionnaire\nTenderers 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.\n2. Form of Tender\nSuppliers must upload their Form of Tender otherwise their submission will not be considered.\nTenderers will not progress to the Technical Response stage if they do not pass these stages.\nStage Three/Four - Tender Stage\n3. Technical Response\nTenderers must respond to a series of technical questions as outlined on the Authority\u0027s eSourcing system. Responses will be evaluated as described in this document and the Authority\u0027s 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.\n4. Commercial Response\nTenderers must complete the commercial envelope as detailed on the Authority\u0027s eSourcing system. Responses will be evaluated as described in this document and the Authority\u0027s eSourcing system.\nStage Five - Final Score\nScores 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).\nStage Six - Trial\nTo 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."
    },
    "procurementMethod": "open",
    "procurementMethodDetails": "Competitive flexible procedure",
    "status": "active",
    "submissionMethodDetails": "https://atamis-9529.my.site.com/s/Welcome\nSubmissions must be made via the Authority\u0027s eSourcing platform.",
    "submissionTerms": {
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      "languages": [
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      ]
    },
    "tenderPeriod": {
      "endDate": "2025-06-26T15:00:00+01:00"
    },
    "title": "Gas Analysers for Automatic Air Quality Monitoring Networks 2025",
    "value": {
      "amount": 1.0,
      "amountGross": 1.2,
      "currency": "GBP"
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