Section one: Contracting authority/entity
one.1) Name and addresses
ENVIRONMENT AGENCY (Defra Network eTendering Portal)
Seacole Building, 2 Marsham Street
London
SW1P 4DF
Contact
DGCEnquiries@defra.gov.uk
Telephone
+44 3459335577
Country
United Kingdom
Region code
UK - United Kingdom
Internet address(es)
Main address
https://www.gov.uk/government/organisations/department-for-environment-food-rural-affairs
Buyer's address
Section two: Object
two.1) Scope of the procurement
two.1.1) Title
The UK Urban NO2 Network (UUNN) 2024
Reference number
C26270
two.1.2) Main CPV code
- 90731100 - Air quality management
two.1.3) Type of contract
Services
two.1.4) Short description
The UUNN was first established in January 2020 and has expanded since to respond to evidence needs and is currently operating at ~299 sites.
The primary aim of the UUNN is the provision of additional NO2 monitoring data for inclusion within the national UK compliance assessment. Previously the national assessment of NO2 has comprised of a UK-wide automatic monitoring network; the Automatic Urban and Rural Network (AURN), and national scale modelling; the Pollution Climate Mapping (PCM) model.
UUNN monitors were sited specifically to target areas where modelling had indicated an exceedance of the annual mean NO2 limit value, and where concentrations predicted by the PCM model and by local modelling completed by a relevant local authority were not in good agreement.
The two requirements to identify specific road links for UUNN measurements within these areas were originally as follows:
▪ Where the PCM model and/or modelling completed by a relevant local authority had predicted an exceedance of the NO2 annual
Section six. Complementary information
six.6) Original notice reference
Notice number: 2024/S 000-034371
Section seven. Changes
seven.1.2) Text to be corrected in the original notice
Section number
IV.2.2.1
Instead of
Date
20 November 2024
Local time
3:00pm
Read
Date
29 November 2024
Local time
12:00pm