title

علت تغییرات غلظت PCB وPBDE در هوای داخل

حضرتی, صادق and هاراد, استوارت (1385) علت تغییرات غلظت PCB وPBDE در هوای داخل. Environmental Science and Technology ــ 40 (24). pp. 7584-7589. شاپا 0013-936X

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Official URL: http://pubs.acs.org/toc/esthag/40/24


Title

Causes of Variability in Concentrations of Polychlorinated Biphenyls and Polybrominated Diphenyl Ethers in Indoor air

English Abstract

Airborne concentrations of PCBs and PBDEs were measured in offices, homes, public environments, and cars. Variations in concentrations between different rooms in the same domestic and office buildings, showed some intra-building variability for both compound groups. Stepwise multiple linear regression analysis revealed no clear and consistent relationships between log-normalized concentrations of PCBs and PBDEs in homes and offices and factors such as the number of personal computers. This is considered to reflect the complexity of relationships between indoor air contamination and microenvironment characteristics. The influence of personal computers was demonstrated when PBDE concentrations in one office fell appreciably following the exchange of a computer constructed in 1998 for one dating from 2003. Concentrations of PCBs in buildings constructed between 1950 and 1979 were significantly higher (p <0.001) than in those constructed since. When two of the most contaminated cars were omitted as outliers, a significant (p < 0.01) positive linear relationship was detected between PBDE concentrations and vehicle age. Concentrations of PCBs and PBDEs were monitored throughout a calendar year in four homes and four offices. Although concentrations in warmer months usually exceeded those in colder months, seasonal variability in indoor contamination appears less significant than observed previously for outdoor air.

Item Type:Article
زبان سند : انگلیسی
نویسنده اول :صادق حضرتی
نویسنده مسئول :استوارت هاراد
Additional Information:cited By (since 1996) 76 Impact factor: 4.458 Indexed/Abstracted in: CAS, SCOPUS, EBSCOhost, Thomson-Gale (Gale Group), Proquest, British Library, PubMed, CABI, Ovid, Web of Science, and SwetsWise
Uncontrolled Keywords:بی فنیل اتر پلی کلره - دی فنیل اتر پلی برمه - هوای داخل
کلیدواژه ها (انگلیسی):Polychlorinated - Biphenyls - Polybrominated - Diphenyl Ethers - Indoor air
Subjects:QU Biochemistry
Divisions:Faculty of Health > Department of Environmental health
ID Code:539
Deposited By: Dr Sadeg Hazrati
Deposited On:26 Sep 1388 04:46
Last Modified:11 Feb 2013 05:57

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