Assessment of Heavy Metal Contents of End-Of-Life Computer Monitor Cathode Tubes and Plastic Casings

Development and innovation in computer technology have led to the generation of large quantities of end-of-life computing equipment with the attendant challenge of environmentally sound management, especially in developing countries. This study evaluated the heavy metal contents of the cathode ray t...

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Bibliographic Details
Published in:Journal of Applied Sciences and Environmental Management 2018-05, Vol.22 (3), p.400
Main Authors: OWOSO, J, OSIBANJO, O, NNOROM, IC
Format: Article
Language:English
Subjects:
cathode ray tube
computer monitor
end-of-life
environmental hazard
plastic casing
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Summary:Development and innovation in computer technology have led to the generation of large quantities of end-of-life computing equipment with the attendant challenge of environmentally sound management, especially in developing countries. This study evaluated the heavy metal contents of the cathode ray tube (CRT) and the plastic casing of thirty (30) end-of-life computer monitors of different brands, years of manufacture (spanning 1981-2005) and countries of manufacture. The specimens were analysed for Pb, Cu, Cr, Zn, Cd, and Ni using atomic absorption spectrophotometer after acid digestion. The mean concentrations of metals in the CRTs varied widely: 1400-14300 mg/kg for Pb; 291-1750 mg/kg for Zn;
ISSN:1119-8362
2659-1502
2659-1499
DOI:10.4314/jasem.v22i3.19