Source: https://tendernation.io/opportunities/01a13c47-7404-7269-94ec-0423af29458e/particle-concentrations-numbers-pcn-the-black-carbon-networks-in-the-uk closed GB restricted procedure Suitable for SMEs # Particle Concentrations & Numbers (PCN) & the Black Carbon networks in the UK [Defra Network eTendering Portal](https://tendernation.io/buyers/defra-network-etendering-portal) Often single bidder Estimated value £1,200,000 Published 13 May 2019 Deadline Closed 31 Jul 2019 ## Who can bid - Buyer says suitable for SMEs The buyer ticked “suitable for SMEs” on the notice. Anyone can still bid. [More contracts for small businesses and VCSEs](https://tendernation.io/opportunities/for-small-businesses) ## About this tender This Contract is to manage and deliver, two UK Air Quality Networks under a single contract. The networks are the Airborne Particle Concentrations and Numbers (PCN) and the Black Carbon network. The PCN network is also referred to as the Particle Numbers and Concentration network on the UK Air website. The networks are let by the Agency to gather national monitoring evidence on behalf of DEFRA as well as SG, WG and DAERA, collectively known as the DAs Additional information: All the documents and instructions to submit a bid are available within the tender documents on the Defra Bravo website link below. Search current opportunities. You do not need to contact the buyer direct, just follow the instructions within Bravo. ## CPV classification Air pollution monitoring or measurement services Source Contracts Finder (UK) [View official notice](https://www.contractsfinder.service.gov.uk/notice/cfd2194b-be8a-465c-906b-82b607f870be) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. [Track tenders free](https://tendernation.io/register) [Buyer profile Defra Network eTendering Portal: past awards and live tenders](https://tendernation.io/buyers/defra-network-etendering-portal) [Sector More Sewage, refuse, cleaning & environmental tenders](https://tendernation.io/sectors/sewage-refuse-cleaning-environmental) ## More tenders like this [Non-hazardous refuse and waste treatment and disposal services – (135/2026) Procedura aperta, ai sensi dell'0art. 71 del D.Lgs. n. 36/2023, con aggiudicazione secondo il criterio del minor prezzo , ai sensi dell'art. 108, comma 3 del D.lgs. n. 36/2023, per la scelta del contraente cui affidare il servizio, di ritiro vuoto per pieno, trasporto e avvio a recupero dei rifiuti misti dell'attività di costruzione e demolizione classificati codice E.E.R. 17.09.04, div · Gare Amiu Genova · 10 days left · 29 Oct 2026](https://tendernation.io/opportunities/01a156aa-01ac-732f-a0a5-ba900c7ea4b4/italy-non-hazardous-refuse-and-waste-treatment-and-disposal-services-13520) [Building-cleaning services – Neteja i desinfecció d'edificis i equipaments municipals. · Ajuntament de Tossa de Mar · 30 days left · 18 Nov 2026](https://tendernation.io/opportunities/01a156a9-63e8-7185-992a-0e5dc4502aee/spain-building-cleaning-services-neteja-i-desinfeccio-dedificis-i-equipamen) [Non-hazardous refuse and waste treatment and disposal services – CTTE1252 Servicio de tratamiento de tierras y escombros de los puntos limpios del Área Metropolitana de Barcelona (AMB) · Tractament I Seleccio de Residus, S.A. · 35 days left · 23 Nov 2026](https://tendernation.io/opportunities/01a156a9-6639-72de-8298-21950a4e3639/spain-non-hazardous-refuse-and-waste-treatment-and-disposal-services-ctte125) [Refuse disposal and treatment – Separace kovů ze škváry · SAKO Brno, a.s. · 37 days left · 25 Nov 2026](https://tendernation.io/opportunities/01a156a9-ca8b-71b6-a1e0-90da1abc58dc/czechia-refuse-disposal-and-treatment-separace-kovu-ze-skvary) [Refuse and waste related services – Odbiór i przyjęcie do zagospodarowania odpadów · Zakład Gospodarki Komunalnej i Mieszkaniowej w Koronowie Sp. z o.o. · 36 days left · 24 Nov 2026](https://tendernation.io/opportunities/01a156aa-0f0f-71bc-8b26-f13445721c21/poland-refuse-and-waste-related-services-odbior-i-przyjecie-do-zagospodarowa) [Refuse and waste related services – „Odbiór i zagospodarowanie odpadów komunalnych od właścicieli nieruchomości zamieszkałych na terenie Gminy Secemin od 1 stycznia do 31 grudnia 2027 r.” · Gmina Secemin · 38 days left · 26 Nov 2026](https://tendernation.io/opportunities/01a156a9-6441-73e1-b701-ab4cefc99281/poland-refuse-and-waste-related-services-odbior-i-zagospodarowanie-odpadow)