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DETERMINATION OF LEAD IN THE ENVIRONMENT AND IN THE URBAN SERVICE WORKERS IN A TEHRAN MANICIPILITY DISTRICT

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Author(s): Meshkinian A. Asilian H. Nazmara Sh. Shahtaheri D.J.

Journal: Journal of School of Public Health and Institute of Public Health Research
ISSN 1735-7586

Volume: 1;
Issue: 3;
Start page: 31;
Date: 2003;
Original page

Keywords: "lead concentration | environmental sample | biological sample | atomic absorption spectrometry "

ABSTRACT
"nThe purpose of this study was to measure ambient lead concentrations in Tehran's 12th Municipal District and also Pb concentrations in urine samples from municipal workers assigned to the same region. In this research workers from the 12th District were matched and compared with a control group who were doing the same type of work in another region in northern Tehran with lighter traffic and comparatively clean air."nAir samples were analyzed by atomic absorption techniques. Results showed the mean air concentration of lead to be higher than standard (1.5ug/m3) except on Fridays and Thursdays (1.9±0.32). The end-shift urine samples were prepared and analyzed using the HSE method. Lead levels in 77.1% of the urine samples were higher than HSE-recommended limits (643.86±353.73). The independent t-test indicated that the mean urine Pb concentration in the case group was significantly higher than in controls (p

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