NCT00014963|Completed
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Sponsor study identifier
observational
90
1 country
1
Study Start
Not reported
Date not reportedPrimary Completion
Not reported
Date not reportedStudy Completion
Not reported
Date not reportedThis study compares air pollution exposures of residents in a South Baltimore community next to major industry with those in a comparison community with much less industry nearby. Parents and children as well as adults alone will be included. Air levels of 3 chemicals that have been found in increased amounts in the community as well as two urinary breakdown products of benzene will be measured. Participants will limit the amount of sorbate preserved foods they eat as this preservative interferes with one of the benzene breakdown products. Benzene air and urine exposure measurements will be compared in each community as well as between communities. By including children and parents we will gather exposure information on children who may be more sensitive that adults to these types of pollution. Lastly, by restricting the amount of food preserved with sorbates, we can decide if this improves the use of ttMA for people exposed to benzene from air pollution.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
Not reported
Date not reportedClick on a node to explore related trials.
Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
April 16, 2001
Actual (reported)April 18, 2001
Actual (reported)Contact the study team to discuss eligibility requirements. They can help determine if this study is right for you.
Johns Hopkins University School of Hygiene and Public Health
Baltimore, Maryland, 21205, United States
Weaver VM, Buckley TJ, Groopman JD. Approaches to environmental exposure assessment in children. Environ Health Perspect. 1998 Jun;106 Suppl 3(Suppl 3):827-32. doi: 10.1289/ehp.98106827.
Weaver VM, Davoli CT, Heller PJ, Fitzwilliam A, Peters HL, Sunyer J, Murphy SE, Goldstein GW, Groopman JD. Benzene exposure, assessed by urinary trans,trans-muconic acid, in urban children with elevated blood lead levels. Environ Health Perspect. 1996 Mar;104(3):318-23. doi: 10.1289/ehp.96104318.
First Submitted
April 16, 2001
First Posted
April 18, 2001
Last Updated
March 23, 2006
Record last verified: 2006-03
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Source: ClinicalTrials.gov.
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Source retrieved:
Ozone Exposure and Dose Delivered to Human Lungs
Weaver VM, Buckley T, Groopman JD. Lack of specificity of trans,trans-muconic acid as a benzene biomarker after ingestion of sorbic acid-preserved foods. Cancer Epidemiol Biomarkers Prev. 2000 Jul;9(7):749-55.