Modelling the spatial distribution of ammonia emissions in the UK

Hellsten, Sofie; Dragosits, Ulrike; Place, Chris; Vieno, Massimo; Dore, Anthony J.; Misselbrook, Tom; Tang, Y. S.; Sutton, Mark A.

doi:10.1016/j.envpol.2008.02.017

Cited by 76 publications

(72 citation statements)

References 20 publications

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“…during the emission inventory processing. FRAME uses spatial patterns of UK NH 3 emissions calculated in the AENEID model Hellsten et al, 2008). A scenario with all poultry emissions removed was tested for CLE exceedance.…”

Section: Concentrations and Critical Level (Cle) Exceedancementioning

confidence: 99%

“…For assessing the environmental impact of NH 3 concentrations and deposition by modelling, it is essential to estimate NH 3 emissions accurately (Dragosits et al, 2002;Hellsten et al, 2008). Hallsworth et al (2010) highlighted the problem of modelling NH 3 dispersion at relatively coarse scales, such as 5 km resolution, due to the high spatial variability of NH 3 emissions and showed that 5 km modelling underestimated the impact of NH 3 concentrations on semi-natural areas close to intensive agricultural areas.…”

Section: Introductionmentioning

confidence: 99%

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Heterogeneity of atmospheric ammonia at the landscape scale and consequences for environmental impact assessment

Vogt

Dragosits

Braban

et al. 2013

Environmental Pollution

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Scott; Rees, Robert M.; Sutton, Mark A. 2013. Heterogeneity of atmospheric ammonia at the landscape scale and consequences for environmental impact assessment.Contact CEH NORA team at noraceh@ceh.ac.ukThe NERC and CEH trademarks and logos ('the Trademarks') are registered trademarks of NERC in the UK and other countries, and may not be used without the prior written consent of the Trademark owner. AbstractWe examined the consequences of the spatial heterogeneity of atmospheric ammonia (NH 3 ) by measuring and modelling NH 3 concentrations and deposition at 25 m grid resolution for a rural landscape containing intensive poultry farming, agricultural grassland, woodland and moorland. The emission pattern gave rise to a high spatial variability of modelled mean annual NH 3 concentrations and dry deposition. Largest impacts were predicted for woodland patches located within the agricultural area, while larger moorland areas were at low risk, due to atmospheric dispersion, prevailing wind direction and low NH 3 background. These high resolution spatial details are lost in national scale estimates at 1 km resolution due to less detailed emission input maps. The results demonstrate how the spatial arrangement of sources and sinks is critical to defining the NH 3 risk to seminatural ecosystems. These spatial relationships provide the foundation for local spatial planning approaches to reduce environmental impacts of atmospheric NH 3 . Capsule:Fine scale resolution modelling to reproduce the spatial heterogeneity of atmospheric NH 3 concentrations and deposition is critical for NH 3 risk assessment on sensitive ecosystems. Highlights:• Local farm inventory provided field-level emissions for high resolution modelling• Model-derived concentrations were compared against intensive spatial measurements• Spatial arrangement of NH 3 sources and sinks is critical to environmental impact• Average national emission factors were not appropriate for an NH 3 risk assessment• Modelling at 1 km resolution did not capture the full spatial variability of NH 3

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Section: Concentrations and Critical Level (Cle) Exceedancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Heterogeneity of atmospheric ammonia at the landscape scale and consequences for environmental impact assessment

Vogt

Dragosits

Braban

et al. 2013

Environmental Pollution

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“…For the UK, emissions values are taken from the National Atmospheric Emission Inventory (NAEI, http://naei.defra.gov.uk) at 1 km 2 resolution and aggregated to 5 km × 5 km resolution. The underpinning methods by which these emission inventories have been established are reported by Hellsten et al (2008) and Dore et al (2008). For the rest of the outer domain, the model uses the EMEP 50 km × 50 km resolution emission estimates provided by the Centre for Emission Inventories and Projections (CEIP, http://www.ceip.at/).…”

Section: Model Description and Setupmentioning

confidence: 99%

The role of long-range transport and domestic emissions in determining atmospheric secondary inorganic particle concentrations across the UK

et al. 2014

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Abstract. Surface concentrations of secondary inorganic particle components over the UK have been analysed for 2001-2010 using the EMEP4UK regional atmospheric chemistry transport model and evaluated against measurements. Gas/particle partitioning in the EMEP4UK model simulations used a bulk approach, which may lead to uncertainties in simulated secondary inorganic aerosol. However, model simulations were able to accurately represent both the long-term decadal surface concentrations of particle sulfate and nitrate and an episode in early 2003 of substantially elevated nitrate measured across the UK by the AGANet network. The latter was identified as consisting of three separate episodes, each of less than 1 month duration, in February, March and April. The primary cause of the elevated nitrate levels across the UK was meteorological: a persistent high-pressure system, whose varying location impacted the relative importance of transboundary versus domestic emissions. Whilst long-range transport dominated the elevated nitrate in February, in contrast it was domestic emissions that mainly contributed to the March episode, and for the April episode both domestic emissions and long-range transport contributed. A prolonged episode such as the one in early 2003 can have substantial impact on annual average concentrations. The episode led to annual concentration differences at the regional scale of similar magnitude to those driven by long-term changes in precursor emissions over the full decade investigated here. The results demonstrate that a substantial part of the UK, particularly the south and southeast, may be close to or exceeding annual mean limit values because of import of inorganic aerosol components from continental Europe under specific conditions. The results reinforce the importance of employing multiple year simulations in the assessment of emissions reduction scenarios on particulate matter concentrations and the need for international agreements to address the transboundary component of air pollution.

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“…For agricultural NH3, the Atmospheric Emissions for National Environmental Impacts Determination (AENEID; used for annual UK maps for the NAEI; Dragosits et al 1998;Hellsten et al 2008) was used for developing the detailed emission scenarios. The AENEID model redistributes agricultural emissions across the landscape by weighting the source strength of five broad management activitieslivestock grazing, livestock housing, manure storage, land-spreading of manures and mineral fertiliser application.…”

Section: Atmospheric Dispersion Modellingmentioning

confidence: 99%

“…Four main categories of agricultural management activities can be identified as key sources of ammonia: emissions from housing, grazing, storage and manure spreading, and fertiliser use (Misselbrook et al, 2010). Ammonia emissions at the local scale vary greatly within the landscape and dry deposition of ammonia occurs especially close to sources (Hellsten et al, 2008;Dragosits et al, 2002). As a consequence, nitrogen sensitive ecosystems close to sources are at a high risk of negative impacts.…”

Section: Introductionmentioning

confidence: 99%

The potential for tree planting strategies to reduce local and regional ecosystem impacts of agricultural ammonia emissions

Bealey

Dore

Dragosits

et al. 2016

Journal of Environmental Management

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Modelling the spatial distribution of ammonia emissions in the UK

Cited by 76 publications

References 20 publications

Heterogeneity of atmospheric ammonia at the landscape scale and consequences for environmental impact assessment

Heterogeneity of atmospheric ammonia at the landscape scale and consequences for environmental impact assessment

The role of long-range transport and domestic emissions in determining atmospheric secondary inorganic particle concentrations across the UK

The potential for tree planting strategies to reduce local and regional ecosystem impacts of agricultural ammonia emissions

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