Source: https://tendernation.io/opportunities/01a13ce4-e970-73f2-bf12-bda68cb4cc31/rde686-ammonia-from-road-traffic-roadside-monitoring awarded GB restricted procedure Suitable for SMEs # RDE686 Ammonia from Road Traffic: Roadside Monitoring [Natural England](https://tendernation.io/buyers/natural-england) Estimated value £17,500 Published 4 Oct 2024 Deadline Closed 24 Sept 2024 ## Who can bid - Buyer says suitable for SMEs The buyer ticked “suitable for SMEs” on the notice. Anyone can still bid. - Buyer says suitable for VCSEs The buyer ticked “suitable for voluntary, community and social enterprises” on the notice. - Small contract value Valued under £135,018 including VAT, the lowest Procurement Act threshold for goods and services. [More contracts for small businesses and VCSEs](https://tendernation.io/opportunities/for-small-businesses) ## About this tender Increasingly emissions from ammonia (NH3) occur as a byproduct from NOx abatement measures in petrol and diesel vehicles (e.g. three-way catalytic converter, Selective Catalytic Reduction). There is consequently an increasing requirement to consider emissions of NH3 when undertaking assessments which impact road traffic numbers close to sensitive ecological receptors or designated ecological sites. As NH3 is not a pollutant that currently falls under the Local Air Quality Management (LAQM), there are currently no Defra-approved emission factors for ammonia emissions from vehicles (for example, via the Emission Factors Toolkit) or an indication how it should be assessed. Practitioners have therefore taken it upon themselves to develop their own tools and methods to calculate ammonia concentrations arising from traffic. There are currently three known approaches, each proposing different emission factors, with no consensus as to which is most appropriate. Neither Natural England nor Defra can comment on the appropriateness of each method or endorse a particular approach, in part due to our lack of knowledge of roadside ammonia concentrations in practice, and how the models reflect these. The National Ammonia Monitoring Network includes only a single roadside monitoring location. There is therefore limited empirical evidence with regards to NH3 concentrations associated with emissions from road traffic sources. Read full description ## CPV classification Research and development consultancy services Source Contracts Finder (UK) [View official notice](https://www.contractsfinder.service.gov.uk/notice/70d0d37d-871e-48d5-957b-98bd432c4827) 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. 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