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DOI	10.1016/j.atmosenv.2020.117872
	Relative efficiency of passive dust samplers: Progress towards coarse dust dispersion modelling
	Bruce J.; Smith J.; Fowler M.
发表日期	2021
ISSN	13522310
卷号	244
英文摘要	The collection efficiency of the DustScan DS100 directional sticky pad dust gauge has been analysed in order to estimate airborne dust concentrations for use in atmospheric dispersion models. A DS100 directional sticky pad dust monitor was tested for 10 months at a quarry boundary with respect to a Wilson and Cook (WAC) sampler, with comparisons primarily made with regard to directional wind speeds over the relevant monitoring periods, as recorded by an on-site meteorological station. The mass of dust collected using the DS100 monitor fluctuated between 3.1% and 21.3% of that caught by the WAC sampler over each period. Variations in collection efficiency were modelled using the count of wind speeds per half hour period and two distinct periods were observed. The main trend showed that higher wind speeds decreased relative DS100 efficiency, with low wind speed (<3 m/s) and high wind speed (>5 m/s) periods showing modelled efficiency above 10% and below 5% respectively in comparison to the WAC sampler. However, a central period of 9 weeks during the monitoring study showed a reverse of this pattern, with significant wind speeds over 5 m/s correlating with higher DS100 efficiency. Although dust catch on each sampler varied significantly over the study period, an average DS100 efficiency of approximately 7% in comparison to the WAC is suggested for use in estimating airborne dust concentrations for use in atmospheric dispersion models. © 2020 Elsevier Ltd
英文关键词	Collection efficiency; Dust; Dust gauge; Dust modelling; Dust monitoring; DustScan
语种	英语
scopus关键词	Efficiency; Speed; Wind; Atmospheric dispersion models; Collection efficiency; Dust dispersion; High wind speed; Low wind speed; Meteorological station; Monitoring periods; Relative efficiency; Dust; rain; air sampling; atmospheric modeling; dispersion; dust; efficiency measurement; sampler; Article; atmospheric dispersion; dust; environmental temperature; gravimetry; humidity; meteorology; particle size; photography; priority journal; wind erosion; wind speed
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/144860
作者单位	University of Portsmouth, University House, Winston Churchill Avenue, Portsmouth, PO1 2UP, United Kingdom; DustScan Ltd, Griffin House, Market Street, Charlbury, Oxford, OX7 3PJ, United Kingdom
推荐引用方式 GB/T 7714	Bruce J.,Smith J.,Fowler M.. Relative efficiency of passive dust samplers: Progress towards coarse dust dispersion modelling[J],2021,244.
APA	Bruce J.,Smith J.,&Fowler M..(2021).Relative efficiency of passive dust samplers: Progress towards coarse dust dispersion modelling.Atmospheric Environment,244.
MLA	Bruce J.,et al."Relative efficiency of passive dust samplers: Progress towards coarse dust dispersion modelling".Atmospheric Environment 244(2021).