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|  Details |  
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| Type Research Report
 
 Author
 Jerry Egereonu
 
 Posted
 July 11, 2012
 
 Relevance
 Nigeria
 
 Categories
 Education
 Environment
 Health
 
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| Fingernails, collected from five petrol attendants including the black marketers in major filling stations were digested using acid mixtures of hydrochloric acid and trioxonitrate (v) acid in the ratio of 1:1. From the result analysis, heavy metals such as Lead and Zinc are found in low levels in human fingernails. The low levels of concentration found in humans among petrol attendants are attributed to their exposure to environmental lead. Therefore petrol attendants have to take proper precaution so as to preserve their health. |  |