Recently, there has been series of petitions and protestations from petroleum\nproduction gas flare facility host communities in Nigeria about the degradation\nof their environment. This study was designed to conduct indoor dust\nrelated human health risk assessment for Cd, Pb, Mn and Ni. Deposited indoor\ndust samples were collected from sixteen (16) residential buildings distributed\nacross the four quarters of Ebedei waterside town in Nigeria, within\nthe vicinity of a petroleum production gas flare facility. The samples were digested\nand analysed for Cd, Pb, Mn and Ni concentrations using inductively\ncoupled plasma mass spectrometry (ICP-MS). Contamination/pollution index\n(C/PI) and human health risk assessments were conducted. The concentration\nranges of 1.2 - 14.9 mg/kg, 44.0 - 161.6 mg/kg and 221.3 - 752.0\nmg/kg, and below detection to 29.8 mg/kg were recorded for Cd, Pb, Mn and\nNi, respectively. C/PI analyses for metals in the indoor dusts investigated\nsuggested Cd levels to be polluted and Pb levels to be slightly polluted, while\nMn and Ni levels indicated contamination. Risk assessment studies indicated\nthat children may be more at risk for all the three exposure pathways. Exposure\nthrough the ingestion pathway indicated the highest risk for both the\nadult and children population.
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