Godwill Tesi

Dr. Godwill Tesi

orcid

Research Focus & Metrics

Academic Career Length

13Years (2014-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 January 2016 in Toxicology Reports
Verified
Journal Article
Open access
CIChukwujindu Iwegbue
Chukwujindu Iwegbue
FBFrancisca I. Bassey
Francisca I. Bassey
GOGrace Obi
Grace Obi
GTGodwill Tesi
Godwill Tesi
BMBice S. Martincigh
Bice S. Martincigh
The concentrations of nine metals (Cd, Pb, Ni, Cr, Co, Cu, Fe, Mn and Zn) were determined in lip sticks, lip glosses, lip balms, eye pencils, eyeliners, eye shadows, blushes, mascaras and face powders. The study was aimed at providing information on the risk associated with human exposure to metals in these facial cosmetic products. The concentrations of metals in the samples were measured by atomic absorption spectrometry after digestion with a mixture of nitric acid, hydrochloric acid and hydrogen peroxide. The mean concentrations of metals in these facial cosmetics ranged from 3.1 to 8.4 μg g-1 Cd, 12-240 μg g-1 Pb, 9.1-44 μg g-1 Cr, 18-288 μg g-1 Ni, 1.6-80 μg g-1 Cu, 7.9-17 μg g-1 Co, 2.3-28 mg g-1 Fe, 12-230 μg g-1 Mn, and from 18 to 320 μg g-1 Zn. The concentrations of Ni, Cr and Co were above the suggested safe limit of 1 μg g-1 for skin protection, while Cd and Pb were above the Canadian specified limits. The systemic exposure dosage (SED) values for these metals obtained from the use of these facial cosmetic products were below their respective provisional tolerable daily intake (PTDI)/or recommended daily intake (RDI) values. The margin of safety values obtained were greater than 100 which indicated that the concentrations of the metals investigated in these facial cosmetics do not present considerable risk to the users except in the case of face powders.

1 June 2019 in Science of The Total Environment
Verified
Journal Article
Closed access
CIChukwujindu M.A. Iwegbue
Chukwujindu M.A. Iwegbue
SESamuel B. Eyengho
Samuel B. Eyengho
FEFrancis E. Egobueze
Francis E. Egobueze
EOEze W. Odali
Eze W. Odali
GTGodwill Tesi
Godwill Tesi
BMBice S. Martincigh
Bice S. Martincigh

3 May 2018 in Exposure and Health
Verified
Journal Article
Closed access
PDF file
CIChukwujindu Iwegbue
Chukwujindu Iwegbue
EIElo-Oghene C. Iteku-Atata
Elo-Oghene C. Iteku-Atata
EOEze W. Odali
Eze W. Odali
FEFrancis E. Egobueze
Francis E. Egobueze
GTGodwill Tesi
Godwill Tesi
BMBice S. Martincigh
Bice S. Martincigh

1 April 2015 in Regulatory Toxicology and Pharmacology
Verified
Journal Article
Closed access
CIChukwujindu Iwegbue
Chukwujindu Iwegbue
FBFrancisca I. Bassey
Francisca I. Bassey
GTGodwill Tesi
Godwill Tesi
SOSunday O. Onyeloni
Sunday O. Onyeloni
GOGrace Obi
Grace Obi
BMBice S. Martincigh
Bice S. Martincigh

1 September 2018 in Ecotoxicology and Environmental Safety
Verified
Journal Article
Closed access
CIChukwujindu Iwegbue
Chukwujindu Iwegbue
GOGrace Obi
Grace Obi
OEOnoriode O. Emoyan
Onoriode O. Emoyan
EOEze W. Odali
Eze W. Odali
FEFrancis E. Egobueze
Francis E. Egobueze
BMBice S. Martincigh
Bice S. Martincigh

1 January 2019 in Emerging Contaminants
Verified
Journal Article
Open access
CIChukwujindu M.A. Iwegbue
Chukwujindu M.A. Iwegbue
GOGrace Obi
Grace Obi
SUStephen A. Uzoekwe
Stephen A. Uzoekwe
FEFrancis E. Egobueze
Francis E. Egobueze
EOEze W. Odali
Eze W. Odali
BMBice S. Martincigh
Bice S. Martincigh