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Risk Assessment Due to Population Exposure to Lead Particles Emittedfrom Domestic Electrical Generators

Authors: Takrid M. Nafae --- Mohannad Kh. Mohammad --- Nabeel Hashim Ameen نبيل هاشم امين
Journal: Iraqi Journal of Chemical and Petroleum Engineering المجلة العراقية للهندسة الكيمياوية وهندسة النفط ISSN: 19974884/E26180707 Year: 2009 Volume: 10 Issue: 3 Pages: 19-23
Publisher: Baghdad University جامعة بغداد

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Abstract

Portable and stationary electrical generators became quite popular in Iraq soon after the shortage in national electricalenergy after 2003. Multi step risk assessment process is used in this study in the assessment of risks caused bycontamination of indoor air by lead particles emitted from domestic electrical generators. Two portable electricalgenerators are tested under controlled indoor conditions (Radial LG (0.9 keV) fueled with benzene and oil and TigMax(3 keV), fueled with benzene only). Lead particles in air were sampled by using portable dust sampler (Sniffer, L-30).The atmospheric particulate sampling process is carried out in a flat located in the first floor of a three stories buildinglocated in Baghdad city, Al-Zafarania region. The lead concentration in the digested filter papers is measured by usingatomic absorption spectrophotometer (Buck, USA). Dose-to-risk conversion factor is applied in this study to estimate thepotential cancer risk to Baghdad’s population related to continuous inhalation of airborne lead at the mean observedconcentrations. The results of toxicity analysis indicate that public exposure to airborne lead at the mean observedconcentration of 4.991 mu g/m3 can increase the risk of cancer at a rate of 12 extra cancer cases in a group of millionexposed individuals. Males are found to be at greater risk than females because of higher inhalation rates. Children arefound to be the most sensitive group due to low body weight (about 101 expected additional cancer cases in a group ofmillion exposed child).

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