Lead Exposure Study Among Workers In Lead Acid Battery Repair Units Of Transport Service Enterprises Addis Ababa Ethiopia

Lead exposure is common in automobile battery manufacture and repair, radiator repair,rnsecondary smelters and welding units. Urinary Aminolevulinic acid has validity as a surrogaternmeasure of blood lead level among workers occupationally exposed to lead. This study hadrntherefore assessed the magnitude of lead exposure in battery repair workers of three transportrnservice enterprises. To this effect, a cross-sectional study was carried out on lead exposure amongrnstorage battery repair workers between November and May 2005 from Anbasa, Comet and Waliarntransport service enterprises, Addis Ababa, Ethiopia. Subjective information from the workers wasrnobtained by making use of structured questionnaire. Other information was obtained from thernwalkthrough evaluation of the repair units. Aminolevulinic acid levels in urine were used as anrnindex of the exposure. This was coupled to measurements of other relevant parameters in blood andrnurine collected from adult subjects working in the repair units as well as age matched controlrnsubjects that were not occupationally exposed to lead. Aminolevulinic acid was determined byrnspectrophotometry, while creatinine clearance, serum creatinine, urea and uric acid levels wererndetermined using AMS Autolab analyser.rnUrinary Aminolevulinic acid levels were found to be significantly higher in exposed group (1.6rnmg/dl+ 0.2) compared to the non-exposed ones (0.7mg/dl+ 0.1) (p

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