Document Details

Document Type : Article In Journal 
Document Title :
Comparison of methods for evaluation of wood smoke and estimation of UK ambient concentrations
مقارنة الطرق لتقدير دخان الأخشاب وتقدير تركيزه فى هواء المملكة المتحدة
 
Subject : Enviromental sciences 
Document Language : English 
Abstract : Airborne concentrations of the wood smoke tracers, levoglucosan and fine potassium have been measured at urban and rural sites in the United Kingdom alongside measurements with a multi-wavelength aethalometer. The UK sites, and especially those in cities, show low ratios of levoglucosan to potassium in comparison to the majority of published data. It is concluded that there may be two distinct source types, one from wood stoves and fireplaces with a high organic carbon content, best represented by levoglucosan, the other from larger, modern appliances with a very high burn-out efficiency, best represented by potassium. Based upon levoglucosan concentrations and a conversion factor of 11.2 from levoglucosan to wood smoke mass, average concentrations of wood smoke including winter and summer sampling periods are 0.23 μgm−3 in Birmingham and 0.33 μgm−3 in London, well below concentrations typical of other northern European urban areas. There may be a further contribution from sources of potassium-rich emissions amounting to an estimated 0.08 μgm−3 in Birmingham and 0.30 μgm−3 in London. Concentrations were highly correlated between two London sites separated by 4 km suggesting that a regional source is responsible. Data from the aethalometer are either supportive of these conclusions or suggest higher concentrations, depending upon the way in which the data are analysed. 
ISSN : 1680-7316 
Journal Name : Atmospheric Chemistry And Physics 
Volume : 12 
Issue Number : 17 
Publishing Year : 1433 AH
2012 AD 
Article Type : Article 
Added Date : Sunday, November 11, 2012 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
R. M. HarrisonHarrison, R. M. Researcher  
D. C. S. BeddowsBeddows, D. C. S. Researcher  
L. HuHu, L. Researcher  
J. YinYin, J. Researcher  

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