Skip to content
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
environmental science
Comparative evaluation of environmental contamination and DNA damage induced by electronic-waste in Nigeria and China
Science of the Total Environment, Volume 423, Year 2012
Notification
URL copied to clipboard!
Description
In the last decade, China and Nigeria have been prime destinations for the world's e-waste disposal leading to serious environmental contamination. We carried out a comparative study of the level of contamination using soils and plants from e-waste dumping and processing sites in both countries. Levels of polyaromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), and polybrominated diphenyl ethers (PBDEs) were analyzed using gas chromatography/spectrophotometry and heavy metals using atomic absorption spectrophotometry. DNA damage was assayed in human peripheral blood lymphocytes using an alkaline comet assay. Soils and plants were highly contaminated with toxic PAHs, PCBs, PBDEs, and heavy metals in both countries. Soil samples from China and plant samples from Nigeria were more contaminated. There was a positive correlation between the concentrations of organics and heavy metals in plant samples and the surrounding soils. In human lymphocytes, all tested samples induced significant (p < 0.05) concentration-dependent increases in DNA damage compared with the negative control. These findings suggest that e-waste components/constituents can accumulate, in soil and surrounding vegetation, to toxic and genotoxic levels that could induce adverse health effects in exposed individuals. © 2012 Elsevier B.V.
Authors & Co-Authors
Alabi, A. Okunola
China, Shantou
Shantou University Medical College
Nigeria, Ilishan-remo
Babcock University
Nigeria, Ibadan
University of Ibadan
Bakare, A. Adekunle
Nigeria, Ibadan
University of Ibadan
Xu, Xijin
China, Shantou
Shantou University Medical College
Li, Bin
China, Shantou
Shantou University Medical College
Zhang, Yuling
China, Shantou
Shantou University Medical College
Huo, Xia
China, Shantou
Shantou University Medical College
Statistics
Citations: 146
Authors: 6
Affiliations: 3
Identifiers
Doi:
10.1016/j.scitotenv.2012.01.056
ISSN:
00489697
e-ISSN:
18791026
Research Areas
Environmental
Genetics And Genomics
Study Locations
Nigeria