Defra - Department for Environment, Food and Rural Affairs.

Science Search

Science and Research Projects

Return to Science Search homepage   Return to Project List

A collation and analysis of current ammonia research - AM0123

Description
In order to develop effective policies to reduce gaseous emissions, it is essential to prepare accurate inventories of emission sources and their size. The purpose of this project will be to critically review all the data currently used to compile the UK Ammonia Emissions Inventory in order to identify any gaps in those data and to recommend the most cost-effective means of filling any gaps found. Data available on abatement techniques will also be reviewed to assess whether these data are sufficient to evaluate the effectiveness and applicability of the technique for UK conditions. The main objectives will be: to assess the significance of gaps in EFs and prioritise filling those gaps; to assess the extent to which any gaps may be filled by data obtained from outside the UK; to do a critical review of EFs and abatement proposals for emissions from buildings housing livestock; to estimate the likely costs of any new research deemed necessary; to assess the likelihood of EFs changing over time; to assess the generality and transferability of data on abatement and, to review estimates of activity data relating to key sources of NH3 emission (as highlighted by NARSES or UKAEI) from existing sources of information; to highlight where estimates of activity data need improvement and how this might be attempted. The overall objective of this project will be to identify the most cost-effective means of improving the accuracy of our estimate of ammonia emissions from livestock farming in the UK.
Objective
1. Assess significance of gaps in EFs and prioritise filling those gaps.

1.1 Identify and review gaps in knowledge of emission factors. [IGER/ADAS/SRI].

1.1.1 Itemize inventory sources.
1.1.2 Collate data used to create EF for each source.
1.1.3 Identify gaps where no data exist (ie EFs have been interpolated from analogous data), and assess the extent to which interpolation is valid.
1.1.4 Assess completeness of data in respect of annual/diurnal variation, including an assessment of how important annual/diurnal variation is for each emissions factor.
1.1.5 Record range and SE of data and hence range of emissions.
1.1.6 Estimate amount of data needed to produce an emission estimate for the source of +20%, and estimate the impact on total Inventory.
1.1.7 Prioritise areas of either new or additional research.

1.2 Assess usefulness of data obtained in other countries. [ADAS/FAL/IMAG].

1.2.1 An examination will be made of the EU Intensive Livestock Best Available Techniques Reference Note (BREF) for information on ammonia emissions for the pig and poultry sector.
1.2.2 Collate non-UK data available in English-language publications.
1.2.3 Collate non-UK data available in German and Dutch.
1.2.4 Record farming practices and environmental conditions under which data collected.
1.2.5 Filter out data not applicable to UK.
1.2.6 Evaluate usefulness of remainder in light of 1.1.3, 1.1.6 and 1.1.7 above.

1.3 Determine gaps in EFs for different housing systems (including abatement measures) [ADAS/IMAG].

1.3.1 Collate relevant data from 1.1.1-1.1.7, and 1.2.1-1.2.6 above.
1.3.2 Undertake study tour to NL to assess housing systems studied there and their applicability to UK livestock husbandry.
1.3.3 Write critical review of emissions work from livestock buildings.
1.3.4 Make recommendations for future work.

1.4 Estimate costs of new research. [ADAS/IGER].

1.5 Assessment of the likelihood of EFs changing over time. [IGER/ADAS].

2. Assess generality and transferability of data on abatement.

2.1 Define UK scenarios for abatement. For example, the current emphasis in the UK has been to investigate methods to reduce emissions following the spreading of livestock manures, since abatement at this stage of the manure management cycle will give an irreversible reduction in emissions, and reduced-emission application techniques are among the most cost-effective.
2.2 Identify studies of abatement techniques (UK and other).
2.3 Record range of conditions under which studies carried out.
2.4 Assess applicability to UK practice.

3. Review the sensitivity of emission estimates to errors in our information on activity data

3.1 Review estimates of activity data relating to key sources of NH3 emission (as highlighted by NARSES or UKAEI) from existing sources of information
3.2 Highlight where estimates need improvement and how this might be attempted
Project Documents
• Final Report : A collation and analysis of current ammonia research   (250k)
• Final Report - Annex : A collation and analysis of current ammonia research   (80k)
• Final Report - Annex : A collation and analysis of current ammonia research   (69k)
• Final Report - Annex : A collation and analysis of current ammonia research   (134k)
• Final Report - Annex : A collation and analysis of current ammonia research   (360k)
• Final Report - Annex : A collation and analysis of current ammonia research   (161k)
• Final Report - Annex : A collation and analysis of current ammonia research   (69k)
Time-Scale and Cost
From: 2003

To: 2005

Cost: £98,185
Contractor / Funded Organisations
ADAS UK Ltd.
Keywords
Agri-Environment              
Air Pollution              
Ammonia              
Environmental Protection              
Pollution              
Fields of Study
Environmental Protection - Agriculture