气候变化领域集成服务门户(CCPortal): Predicting atmospheric ammonia dispersion and potential ecological effects using monitored emission rates from an intensive laying hen facility in Ireland

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DOI	10.1016/j.atmosenv.2021.118214
	Predicting atmospheric ammonia dispersion and potential ecological effects using monitored emission rates from an intensive laying hen facility in Ireland
	Kelleghan D.B.; Hayes E.T.; Everard M.; Curran T.P.
发表日期	2021
ISSN	1352-2310
卷号	247
英文摘要	Agriculture is responsible for 98% of atmospheric ammonia (NH3) in Ireland, of which pigs and poultry produce 7%; with laying hens specifically contributing 0.6%. Though a small proportion of the national NH3 total emissions, the ecological impacts on sensitive sites attributed to laying hen farms can be substantial. NH3 emission monitoring was conducted in Spring (February to March) and Summer (July to August) 2016 to account for seasonal variation. The total average emission and ventilation rate was 0.25 g bird−1 day−1 and 931 cm3 s−1 bird−1. This is lower than the previously used emission factor for the Irish national inventory of 0.5 g bird−1 day−1, but broadly similar to factors reported in the United Kingdom (UK) and the European Union (EU). Dispersion modelling using monitored data indicated potentially acute effects within 84 m, critical level exceedance within 312 m and exceedance of 0.3 kg N ha−1 year−1 deposition within 2.9–5.2 km. The sensitivity of the model was tested using SCAIL-Agriculture emission and ventilation rates which showed P-values for one tailed critical level below 0.01 for all models, indicating that when normalised the maximum extents modelled by AERMOD were significantly different. This analysis showed emission rate having more influence than ventilation rate. Both parameters combined had the greatest increase in dispersion extent, on average 55.8% greater than the use of monitored rates. A deposition rate of 0.3 kg N ha−1 year−1 was modelled to occur within 5.1–7.7 km when using SCAIL-Agriculture rates. Indicating that the use of SCAIL-Agriculture recommended emission and ventilation rates would have been sufficiently precautionary to assess negative ecological effects on a Natura 2000 site under the Habitats Directive (92/43/EEC). In relation to Appropriate Assessment (AA) screening, the use of any contribution from a source within a set distance may be an appropriate full AA trigger. © 2021 Elsevier Ltd
英文关键词	Agricultural robots; Agriculture; Ammonia; Birds; Deposition rates; Mammals; Particulate emissions; Ventilation; Atmospheric ammonia; Dispersion Modelling; Ecological effect; Ecological impacts; Emission monitoring; Habitats directives; Seasonal variation; Ventilation rate; Atmospheric movements; ammonia; captive population; dispersion; ecological approach; environmental monitoring; European Union; livestock farming; poultry; prediction; seasonal variation; ventilation; Ireland; United Kingdom
语种	英语
来源期刊	Atmospheric Environment
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169009
作者单位	UCD School of Biosystems and Food Engineering, University College Dublin, Belfield, Dublin 4, Ireland; Air Quality Management Resource Centre, University of the West of England, Frenchay Campus, Coldharbour Lane, Bristol, BS16 1QY, United Kingdom; International Water Security Network, University of the West of England, Frenchay Campus, Coldharbour Lane, Bristol, BS16 1QY, United Kingdom
推荐引用方式 GB/T 7714	Kelleghan D.B.,Hayes E.T.,Everard M.,et al. Predicting atmospheric ammonia dispersion and potential ecological effects using monitored emission rates from an intensive laying hen facility in Ireland[J],2021,247.
APA	Kelleghan D.B.,Hayes E.T.,Everard M.,&Curran T.P..(2021).Predicting atmospheric ammonia dispersion and potential ecological effects using monitored emission rates from an intensive laying hen facility in Ireland.Atmospheric Environment,247.
MLA	Kelleghan D.B.,et al."Predicting atmospheric ammonia dispersion and potential ecological effects using monitored emission rates from an intensive laying hen facility in Ireland".Atmospheric Environment 247(2021).