Heavy Metals Levels in Plastics Housing of Televisions: Is there a changing trend across three decades (1980-2000)?

Background: This study investigated the concentration of some heavy metals in plastic housing of televisions produced over three decade (1980-2000) with the aim of providing information and comparing the trend in the concentration of these metals. Methods: The heavy metal concentrations were de...

Full description

Bibliographic Details
Main Authors: Chioma Grace Okenwa-Ani, Nnamdi Lawrence Obasi, Alfred Ezinna Ochonogor, Janefrances Ngozi Ihedioha*
Format: Article
Language:English
Published: Arak University of Medical Sciences 2019-07-01
Series:Iranian Journal of Toxicology
Subjects:
Online Access:http://ijt.arakmu.ac.ir/article-1-744-en.pdf
id doaj-8b2cd21efcd54fc2a1599a6850a6ea39
record_format Article
spelling doaj-8b2cd21efcd54fc2a1599a6850a6ea392020-11-25T01:53:40ZengArak University of Medical SciencesIranian Journal of Toxicology2008-29672008-29672019-07-011332732Heavy Metals Levels in Plastics Housing of Televisions: Is there a changing trend across three decades (1980-2000)? Chioma Grace Okenwa-Ani0Nnamdi Lawrence Obasi1Alfred Ezinna Ochonogor2Janefrances Ngozi Ihedioha*3Department of Pure and Industrial Chemistry, University of Nigeria Nsukka, Enugu State, Nigeria.Department of Pure and Industrial Chemistry, University of Nigeria Nsukka, Enugu State, Nigeria.Department of Pure and Industrial Chemistry, University of Nigeria Nsukka, Enugu State, Nigeria.Department of Pure and Industrial Chemistry, University of Nigeria Nsukka, Enugu State, Nigeria.* Corresponding Author: E-mail: janefrances.ihedioha@unn.edu.ngBackground: This study investigated the concentration of some heavy metals in plastic housing of televisions produced over three decade (1980-2000) with the aim of providing information and comparing the trend in the concentration of these metals. Methods: The heavy metal concentrations were determined by atomic absorption spectroscopy after acid digestion using a 1:1 mixture of sulphuric and nitric acid. Results: The mean concentration of the heavy metals (mg/kg) in the television sets for 1980s, 1990s and 2000s, respectively, were as follows: 12.75 (Nd); 1.32 (Pb); 1.84, 1.47 & 2.79 (Ni); 1.53, 16.19 & 40.42 (Ag); 82.24, 159.69 & 113.29 (Zn); 7.12, 4.23 & 5.26 (Cr); 3.26, 2.76 & 2.39 (Cu); 4.84, 24.05 & 26.67 (V); 9.30, 8.40 & 12.63 (Co); 2.59, 4.05 & 4.28 (Cd). Conclusion: Although the mean concentrations for Zn, Cu and Ag in the television samples were relatively high, compared to the total threshold limit concentration (TTLC), they were below the threshold limit. These results suggest that there may not be any immediate environmental hazard posed from the TV plastic housings. The correlations analysis showed that most of the metals declined in TV housings over the subsequent decades. http://ijt.arakmu.ac.ir/article-1-744-en.pdfEnvironmental HazardsHeavy MetalsPlasticsTelevision1980’s to 2000’s Decades
collection DOAJ
language English
format Article
sources DOAJ
author Chioma Grace Okenwa-Ani
Nnamdi Lawrence Obasi
Alfred Ezinna Ochonogor
Janefrances Ngozi Ihedioha*
spellingShingle Chioma Grace Okenwa-Ani
Nnamdi Lawrence Obasi
Alfred Ezinna Ochonogor
Janefrances Ngozi Ihedioha*
Heavy Metals Levels in Plastics Housing of Televisions: Is there a changing trend across three decades (1980-2000)?
Iranian Journal of Toxicology
Environmental Hazards
Heavy Metals
Plastics
Television
1980’s to 2000’s Decades
author_facet Chioma Grace Okenwa-Ani
Nnamdi Lawrence Obasi
Alfred Ezinna Ochonogor
Janefrances Ngozi Ihedioha*
author_sort Chioma Grace Okenwa-Ani
title Heavy Metals Levels in Plastics Housing of Televisions: Is there a changing trend across three decades (1980-2000)?
title_short Heavy Metals Levels in Plastics Housing of Televisions: Is there a changing trend across three decades (1980-2000)?
title_full Heavy Metals Levels in Plastics Housing of Televisions: Is there a changing trend across three decades (1980-2000)?
title_fullStr Heavy Metals Levels in Plastics Housing of Televisions: Is there a changing trend across three decades (1980-2000)?
title_full_unstemmed Heavy Metals Levels in Plastics Housing of Televisions: Is there a changing trend across three decades (1980-2000)?
title_sort heavy metals levels in plastics housing of televisions: is there a changing trend across three decades (1980-2000)?
publisher Arak University of Medical Sciences
series Iranian Journal of Toxicology
issn 2008-2967
2008-2967
publishDate 2019-07-01
description Background: This study investigated the concentration of some heavy metals in plastic housing of televisions produced over three decade (1980-2000) with the aim of providing information and comparing the trend in the concentration of these metals. Methods: The heavy metal concentrations were determined by atomic absorption spectroscopy after acid digestion using a 1:1 mixture of sulphuric and nitric acid. Results: The mean concentration of the heavy metals (mg/kg) in the television sets for 1980s, 1990s and 2000s, respectively, were as follows: 12.75 (Nd); 1.32 (Pb); 1.84, 1.47 & 2.79 (Ni); 1.53, 16.19 & 40.42 (Ag); 82.24, 159.69 & 113.29 (Zn); 7.12, 4.23 & 5.26 (Cr); 3.26, 2.76 & 2.39 (Cu); 4.84, 24.05 & 26.67 (V); 9.30, 8.40 & 12.63 (Co); 2.59, 4.05 & 4.28 (Cd). Conclusion: Although the mean concentrations for Zn, Cu and Ag in the television samples were relatively high, compared to the total threshold limit concentration (TTLC), they were below the threshold limit. These results suggest that there may not be any immediate environmental hazard posed from the TV plastic housings. The correlations analysis showed that most of the metals declined in TV housings over the subsequent decades.
topic Environmental Hazards
Heavy Metals
Plastics
Television
1980’s to 2000’s Decades
url http://ijt.arakmu.ac.ir/article-1-744-en.pdf
work_keys_str_mv AT chiomagraceokenwaani heavymetalslevelsinplasticshousingoftelevisionsisthereachangingtrendacrossthreedecades19802000
AT nnamdilawrenceobasi heavymetalslevelsinplasticshousingoftelevisionsisthereachangingtrendacrossthreedecades19802000
AT alfredezinnaochonogor heavymetalslevelsinplasticshousingoftelevisionsisthereachangingtrendacrossthreedecades19802000
AT janefrancesngoziihedioha heavymetalslevelsinplasticshousingoftelevisionsisthereachangingtrendacrossthreedecades19802000
_version_ 1724989866432790528