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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
environmental science
Toxicity characterization of waste mobile phone plastics
Journal of Hazardous Materials, Volume 161, No. 1, Year 2009
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Description
Waste plastic housing units (N = 60) of mobile phones (of different models, and brands), were collected and analyzed for lead, cadmium, nickel and silver using atomic absorption spectrophotometry after acid digestion using a 1:1 mixture of H2SO4 and HNO3. The mean (±S.D.) and range of the results are 58.3 ± 50.4 mg/kg (5.0-340 mg/kg) for Pb, 69.9 ± 145 mg/kg (4.6-1005 mg/kg) for Cd, 432 ± 1905 mg/kg (5.0-11,000 mg/kg) for Ni, and 403 ± 1888 mg/kg (5.0-12,500 mg/kg) for Ag. Approximately 90% of the results for the various metals were ≤100 mg/kg. Results greater than 300 mg/kg were generally less than 7% for each metal and could be attributed to exogenous contamination of the samples. These results suggest that there may not be any immediate danger from end-of-life (EoL) mobile phone plastic housing if appropriately treated/managed. However, considering the large quantities generated and the present low-end management practices in most developing countries, such as open burning, there appears a genuine concern over the potential for environmental pollution and toxicity to man and the ecology. © 2008 Elsevier B.V. All rights reserved.
Authors & Co-Authors
Nnorom, Innocent C.
Nigeria, Uturu
Abia State University
Osibanjo, Oladele O.
Nigeria, Ibadan
University of Ibadan
Statistics
Citations: 154
Authors: 2
Affiliations: 2
Identifiers
Doi:
10.1016/j.jhazmat.2008.03.067
ISSN:
03043894
Research Areas
Environmental
Health System And Policy