Document Detail

PCB-blood levels in teachers, working in PCB-contaminated schools.
MedLine Citation:
PMID:  10739046     Owner:  NLM     Status:  MEDLINE    
In order to get more information about potential health hazards due to indoor air PCBs the present study investigated the PCB indoor concentration in schools as well as the blood levels of 6 PCB-indicator congeners in teachers from these schools. 151 teachers (78 male and 73 female; mean age 48 years) from 3 contaminated and 2 control schools participated in the study. Maximal indoor air values for total PCBs (6 PCB-indicator congeners times 5) in schools ranged from 1587 to 10655 ng/m3. Blood analyses indicated an increase in mean PCB 28 level from 0.036 (control group) to 0.098 microg/l in teachers from a school with heavy contamination of low chlorinated PCB. But there was no significant increase of PCB 138, 153 and 180 in blood above the normal background concentrations in any of the contaminated schools (mean values of all groups: PCB 138 = 0.66, 153 = 0.95, 180 = 0.70 microg/l blood). The results of blood analyses and additional toxicokinetic calculations suggested that inhalative PCB-uptake in the most contaminated schools caused a minor increase above mean background-PCB concentrations in blood. In conclusion, despite high PCB indoor air levels in schools, there was only a moderate increase in blood concentrations of teachers, mainly due to congeners with low chlorination (PCB 28 to PCB 101).
T Gabrio; I Piechotowski; T Wallenhorst; M Klett; L Cott; P Friebel; B Link; M Schwenk
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Chemosphere     Volume:  40     ISSN:  0045-6535     ISO Abbreviation:  Chemosphere     Publication Date:    2000 May-Jun
Date Detail:
Created Date:  2000-05-11     Completed Date:  2000-05-11     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0320657     Medline TA:  Chemosphere     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  1055-62     Citation Subset:  IM    
Landesgesundheitsamt Baden-Württemberg, Stuttgart, Germany.
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MeSH Terms
Air Pollutants / analysis*
Middle Aged
Occupational Exposure*
Polychlorinated Biphenyls / analysis*,  blood*
Sex Characteristics
Reg. No./Substance:
0/Air Pollutants; 0/Polychlorinated Biphenyls

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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