Document Detail

Indoor and outdoor BTX levels in Barcelona City metropolitan area and Catalan rural areas.
MedLine Citation:
PMID:  19143312     Owner:  NLM     Status:  MEDLINE    
Five aromatic hydrocarbons (benzene, toluene, and three isomeric xylenes) were monitored in indoor and outdoor air of 7 public buildings and 54 private homes, located in Barcelona City metropolitan area and in several rural areas of Catalonia. The sampling was carried out over four periods: spring-summer and winter of 2000, and summer and winter of 2001. Passive ORSA 5 Dräger samplers were used for benzene, toluene, and xylenes (BTX) adsorption. BTX were extracted with carbon disulphide and analysed using a gas chromatograph coupled to a FID detector. In Barcelona metropolitan area the outdoor average concentrations of BTX were 3.5, 34.2, and 31.3 microg/m3 in urban areas, and 1.4, 9.2, and 9.2 microg/m3 in rural areas, respectively. Average indoor air concentrations of BTX were respectively 4.3, 64.8, and 47.6 microg/m3 in urban areas and 5.8, 67.0, and 51.4 microg/m3 in rural areas, respectively. A direct connection between the house and garage was one of the most influential factors for indoor BTX concentrations in rural areas. In urban areas, diffuse traffic sources were the predominant BTX source, slightly influenced by tobacco smoke in indoor air.
E Gallego; F X Roca; X Guardino; M G Rosell
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of environmental sciences (China)     Volume:  20     ISSN:  1001-0742     ISO Abbreviation:  J Environ Sci (China)     Publication Date:  2008  
Date Detail:
Created Date:  2009-01-15     Completed Date:  2009-02-03     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100967627     Medline TA:  J Environ Sci (China)     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  1063-9     Citation Subset:  IM    
Environmental Centre Laboratory, Polytechnic University of Catalonia, Avenida Diagonal 647, Barcelona 08028, Spain.
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MeSH Terms
Air Pollutants / chemistry*
Air Pollution, Indoor
Benzene / chemistry*
Rural Population
Toluene / chemistry*
Xylenes / chemistry*
Reg. No./Substance:
0/Air Pollutants; 0/Xylenes; 108-88-3/Toluene; 71-43-2/Benzene

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