Vertical Profiling and Contamination Risk Assessment of Some Trace Metals in Lagos Lagoon Axis

Popoola Samuel Olatunde; Nubi Olubunmi Ayoola; Oyatola Opeyemi Otolorin; Adekunbi Falilu Olaiwola; Fabunmi Gaffar Idera; Nwoko Chidinma Jecinta

doi:doi:10.11648/j.ijsts.20150304.19

Vertical Profiling and Contamination Risk Assessment of Some Trace Metals in Lagos Lagoon Axis

Popoola Samuel Olatunde, Nubi Olubunmi Ayoola, Oyatola Opeyemi Otolorin, Adekunbi Falilu Olaiwola, Fabunmi Gaffar Idera, Nwoko Chidinma Jecinta

Published in International Journal of Science, Technology and Society (Volume 3, Issue 4)

Received: 21 May 2015 Accepted: 3 June 2015 Published: 25 June 2015

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Abstract

Lagos Harbour (a Lagos lagoon axis) serves as a route for goods transportation, coupled with proliferation of urban and industrial establishments. The socioeconomic activities within has often led to the introduction of substantial wastes, marine debris and spills into the harbor. In an attempt to monitor the pollution status of aquatic organisms in the Lagos Lagoon axis, vertical profiling of the trace metal contents was carried out to reveal, the vertical variations in the monthly trends of; Cu, Zn, Pb, Cr, Mn, Ni, and Fe between August and October,2014.Chemical analysis was carried out in the Nigerian institute for oceanography and marine research (NIOMR) wet and instrumentation laboratory, using aqua regia digestion methods and 200AA series Atomic Absorption Spectrophotometer. The observed levels of the trace metals shows a decreasing order of abundance; Fe > Cr > Pb > Mn> Ni > Zn > Cu; Fe > Pb > Cr > Ni > Mn > Zn >Cu and Fe > Cr > Pb > Ni > Mn > Zn > Cu for 0.2meters, 2.6meters and 5.2meters respective depth profile. This study reveal a general contamination trends; medium depth (2.6m) > bottom depth (5.2m) > surface depth (0.2m). Higher metal concentrations were observed in October. All observed trace metals except Cu, Zn and Fe exhibit high contamination ratio. The trace metals distributions in the study area are majorly controlled by; precipitations, dilution, anthropogenic activities and Sea/fresh water incursion from the Atlantic Ocean and the adjourning creeks. A strong regulation in the indiscriminate waste dump and a check in the socioeconomic activities in the Lagos Harbour are very essential.

Published in	International Journal of Science, Technology and Society (Volume 3, Issue 4)
DOI	10.11648/j.ijsts.20150304.19
Page(s)	156-163
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2015. Published by Science Publishing Group

Keywords

Lagos Harbour, Marine Debris, Atomic Absorption Spectrophotometer, Trace Metals, Contamination Ratio, Anthropogenic Activities

References

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APA Style

Popoola Samuel Olatunde, Nubi Olubunmi Ayoola, Oyatola Opeyemi Otolorin, Adekunbi Falilu Olaiwola, Fabunmi Gaffar Idera, et al. (2015). Vertical Profiling and Contamination Risk Assessment of Some Trace Metals in Lagos Lagoon Axis. International Journal of Science, Technology and Society, 3(4), 156-163. https://doi.org/10.11648/j.ijsts.20150304.19

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ACS Style

Popoola Samuel Olatunde; Nubi Olubunmi Ayoola; Oyatola Opeyemi Otolorin; Adekunbi Falilu Olaiwola; Fabunmi Gaffar Idera, et al. Vertical Profiling and Contamination Risk Assessment of Some Trace Metals in Lagos Lagoon Axis. Int. J. Sci. Technol. Soc. 2015, 3(4), 156-163. doi: 10.11648/j.ijsts.20150304.19

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AMA Style

Popoola Samuel Olatunde, Nubi Olubunmi Ayoola, Oyatola Opeyemi Otolorin, Adekunbi Falilu Olaiwola, Fabunmi Gaffar Idera, et al. Vertical Profiling and Contamination Risk Assessment of Some Trace Metals in Lagos Lagoon Axis. Int J Sci Technol Soc. 2015;3(4):156-163. doi: 10.11648/j.ijsts.20150304.19

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@article{10.11648/j.ijsts.20150304.19,
  author = {Popoola Samuel Olatunde and Nubi Olubunmi Ayoola and Oyatola Opeyemi Otolorin and Adekunbi Falilu Olaiwola and Fabunmi Gaffar Idera and Nwoko Chidinma Jecinta},
  title = {Vertical Profiling and Contamination Risk Assessment of Some Trace Metals in Lagos Lagoon Axis},
  journal = {International Journal of Science, Technology and Society},
  volume = {3},
  number = {4},
  pages = {156-163},
  doi = {10.11648/j.ijsts.20150304.19},
  url = {https://doi.org/10.11648/j.ijsts.20150304.19},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijsts.20150304.19},
  abstract = {Lagos Harbour (a Lagos lagoon axis) serves as a route for goods transportation, coupled with proliferation of urban and industrial establishments. The socioeconomic activities within has often led to the introduction of substantial wastes, marine debris and spills into the harbor. In an attempt to monitor the pollution status of aquatic organisms in the Lagos Lagoon axis, vertical profiling of the trace metal contents was carried out to reveal, the vertical variations in the monthly trends of; Cu, Zn, Pb, Cr, Mn, Ni, and Fe between August and October,2014.Chemical analysis was carried out in the Nigerian institute for oceanography and marine research (NIOMR) wet and instrumentation laboratory, using aqua regia digestion methods and 200AA series Atomic Absorption Spectrophotometer. The observed levels of the trace metals shows a decreasing order of abundance; Fe > Cr > Pb > Mn> Ni > Zn > Cu; Fe > Pb > Cr > Ni > Mn > Zn >Cu and Fe > Cr > Pb > Ni > Mn > Zn > Cu for 0.2meters, 2.6meters and 5.2meters respective depth profile. This study reveal a general contamination trends; medium depth (2.6m) > bottom depth (5.2m) > surface depth (0.2m). Higher metal concentrations were observed in October. All observed trace metals except Cu, Zn and Fe exhibit high contamination ratio. The trace metals distributions in the study area are majorly controlled by; precipitations, dilution, anthropogenic activities and Sea/fresh water incursion from the Atlantic Ocean and the adjourning creeks. A strong regulation in the indiscriminate waste dump and a check in the socioeconomic activities in the Lagos Harbour are very essential.},
 year = {2015}
}

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TY  - JOUR
T1  - Vertical Profiling and Contamination Risk Assessment of Some Trace Metals in Lagos Lagoon Axis
AU  - Popoola Samuel Olatunde
AU  - Nubi Olubunmi Ayoola
AU  - Oyatola Opeyemi Otolorin
AU  - Adekunbi Falilu Olaiwola
AU  - Fabunmi Gaffar Idera
AU  - Nwoko Chidinma Jecinta
Y1  - 2015/06/25
PY  - 2015
N1  - https://doi.org/10.11648/j.ijsts.20150304.19
DO  - 10.11648/j.ijsts.20150304.19
T2  - International Journal of Science, Technology and Society
JF  - International Journal of Science, Technology and Society
JO  - International Journal of Science, Technology and Society
SP  - 156
EP  - 163
PB  - Science Publishing Group
SN  - 2330-7420
UR  - https://doi.org/10.11648/j.ijsts.20150304.19
AB  - Lagos Harbour (a Lagos lagoon axis) serves as a route for goods transportation, coupled with proliferation of urban and industrial establishments. The socioeconomic activities within has often led to the introduction of substantial wastes, marine debris and spills into the harbor. In an attempt to monitor the pollution status of aquatic organisms in the Lagos Lagoon axis, vertical profiling of the trace metal contents was carried out to reveal, the vertical variations in the monthly trends of; Cu, Zn, Pb, Cr, Mn, Ni, and Fe between August and October,2014.Chemical analysis was carried out in the Nigerian institute for oceanography and marine research (NIOMR) wet and instrumentation laboratory, using aqua regia digestion methods and 200AA series Atomic Absorption Spectrophotometer. The observed levels of the trace metals shows a decreasing order of abundance; Fe > Cr > Pb > Mn> Ni > Zn > Cu; Fe > Pb > Cr > Ni > Mn > Zn >Cu and Fe > Cr > Pb > Ni > Mn > Zn > Cu for 0.2meters, 2.6meters and 5.2meters respective depth profile. This study reveal a general contamination trends; medium depth (2.6m) > bottom depth (5.2m) > surface depth (0.2m). Higher metal concentrations were observed in October. All observed trace metals except Cu, Zn and Fe exhibit high contamination ratio. The trace metals distributions in the study area are majorly controlled by; precipitations, dilution, anthropogenic activities and Sea/fresh water incursion from the Atlantic Ocean and the adjourning creeks. A strong regulation in the indiscriminate waste dump and a check in the socioeconomic activities in the Lagos Harbour are very essential.
VL  - 3
IS  - 4
ER  -

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Author Information

Popoola Samuel Olatunde

Department of Physical and Chemical Oceanography, Nigerian Institute for Oceanography and Marine Research, Lagos, Nigeria
Nubi Olubunmi Ayoola

Department of Physical and Chemical Oceanography, Nigerian Institute for Oceanography and Marine Research, Lagos, Nigeria
Oyatola Opeyemi Otolorin

Department of Physical and Chemical Oceanography, Nigerian Institute for Oceanography and Marine Research, Lagos, Nigeria
Adekunbi Falilu Olaiwola

Department of Physical and Chemical Oceanography, Nigerian Institute for Oceanography and Marine Research, Lagos, Nigeria
Fabunmi Gaffar Idera

Department of Physical and Chemical Oceanography, Nigerian Institute for Oceanography and Marine Research, Lagos, Nigeria
Nwoko Chidinma Jecinta

Department of Physical and Chemical Oceanography, Nigerian Institute for Oceanography and Marine Research, Lagos, Nigeria

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APA Style

Popoola Samuel Olatunde, Nubi Olubunmi Ayoola, Oyatola Opeyemi Otolorin, Adekunbi Falilu Olaiwola, Fabunmi Gaffar Idera, et al. (2015). Vertical Profiling and Contamination Risk Assessment of Some Trace Metals in Lagos Lagoon Axis. International Journal of Science, Technology and Society, 3(4), 156-163. https://doi.org/10.11648/j.ijsts.20150304.19

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ACS Style

Popoola Samuel Olatunde; Nubi Olubunmi Ayoola; Oyatola Opeyemi Otolorin; Adekunbi Falilu Olaiwola; Fabunmi Gaffar Idera, et al. Vertical Profiling and Contamination Risk Assessment of Some Trace Metals in Lagos Lagoon Axis. Int. J. Sci. Technol. Soc. 2015, 3(4), 156-163. doi: 10.11648/j.ijsts.20150304.19

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AMA Style

Popoola Samuel Olatunde, Nubi Olubunmi Ayoola, Oyatola Opeyemi Otolorin, Adekunbi Falilu Olaiwola, Fabunmi Gaffar Idera, et al. Vertical Profiling and Contamination Risk Assessment of Some Trace Metals in Lagos Lagoon Axis. Int J Sci Technol Soc. 2015;3(4):156-163. doi: 10.11648/j.ijsts.20150304.19

Copy | Download

@article{10.11648/j.ijsts.20150304.19,
  author = {Popoola Samuel Olatunde and Nubi Olubunmi Ayoola and Oyatola Opeyemi Otolorin and Adekunbi Falilu Olaiwola and Fabunmi Gaffar Idera and Nwoko Chidinma Jecinta},
  title = {Vertical Profiling and Contamination Risk Assessment of Some Trace Metals in Lagos Lagoon Axis},
  journal = {International Journal of Science, Technology and Society},
  volume = {3},
  number = {4},
  pages = {156-163},
  doi = {10.11648/j.ijsts.20150304.19},
  url = {https://doi.org/10.11648/j.ijsts.20150304.19},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijsts.20150304.19},
  abstract = {Lagos Harbour (a Lagos lagoon axis) serves as a route for goods transportation, coupled with proliferation of urban and industrial establishments. The socioeconomic activities within has often led to the introduction of substantial wastes, marine debris and spills into the harbor. In an attempt to monitor the pollution status of aquatic organisms in the Lagos Lagoon axis, vertical profiling of the trace metal contents was carried out to reveal, the vertical variations in the monthly trends of; Cu, Zn, Pb, Cr, Mn, Ni, and Fe between August and October,2014.Chemical analysis was carried out in the Nigerian institute for oceanography and marine research (NIOMR) wet and instrumentation laboratory, using aqua regia digestion methods and 200AA series Atomic Absorption Spectrophotometer. The observed levels of the trace metals shows a decreasing order of abundance; Fe > Cr > Pb > Mn> Ni > Zn > Cu; Fe > Pb > Cr > Ni > Mn > Zn >Cu and Fe > Cr > Pb > Ni > Mn > Zn > Cu for 0.2meters, 2.6meters and 5.2meters respective depth profile. This study reveal a general contamination trends; medium depth (2.6m) > bottom depth (5.2m) > surface depth (0.2m). Higher metal concentrations were observed in October. All observed trace metals except Cu, Zn and Fe exhibit high contamination ratio. The trace metals distributions in the study area are majorly controlled by; precipitations, dilution, anthropogenic activities and Sea/fresh water incursion from the Atlantic Ocean and the adjourning creeks. A strong regulation in the indiscriminate waste dump and a check in the socioeconomic activities in the Lagos Harbour are very essential.},
 year = {2015}
}

Copy | Download

TY  - JOUR
T1  - Vertical Profiling and Contamination Risk Assessment of Some Trace Metals in Lagos Lagoon Axis
AU  - Popoola Samuel Olatunde
AU  - Nubi Olubunmi Ayoola
AU  - Oyatola Opeyemi Otolorin
AU  - Adekunbi Falilu Olaiwola
AU  - Fabunmi Gaffar Idera
AU  - Nwoko Chidinma Jecinta
Y1  - 2015/06/25
PY  - 2015
N1  - https://doi.org/10.11648/j.ijsts.20150304.19
DO  - 10.11648/j.ijsts.20150304.19
T2  - International Journal of Science, Technology and Society
JF  - International Journal of Science, Technology and Society
JO  - International Journal of Science, Technology and Society
SP  - 156
EP  - 163
PB  - Science Publishing Group
SN  - 2330-7420
UR  - https://doi.org/10.11648/j.ijsts.20150304.19
AB  - Lagos Harbour (a Lagos lagoon axis) serves as a route for goods transportation, coupled with proliferation of urban and industrial establishments. The socioeconomic activities within has often led to the introduction of substantial wastes, marine debris and spills into the harbor. In an attempt to monitor the pollution status of aquatic organisms in the Lagos Lagoon axis, vertical profiling of the trace metal contents was carried out to reveal, the vertical variations in the monthly trends of; Cu, Zn, Pb, Cr, Mn, Ni, and Fe between August and October,2014.Chemical analysis was carried out in the Nigerian institute for oceanography and marine research (NIOMR) wet and instrumentation laboratory, using aqua regia digestion methods and 200AA series Atomic Absorption Spectrophotometer. The observed levels of the trace metals shows a decreasing order of abundance; Fe > Cr > Pb > Mn> Ni > Zn > Cu; Fe > Pb > Cr > Ni > Mn > Zn >Cu and Fe > Cr > Pb > Ni > Mn > Zn > Cu for 0.2meters, 2.6meters and 5.2meters respective depth profile. This study reveal a general contamination trends; medium depth (2.6m) > bottom depth (5.2m) > surface depth (0.2m). Higher metal concentrations were observed in October. All observed trace metals except Cu, Zn and Fe exhibit high contamination ratio. The trace metals distributions in the study area are majorly controlled by; precipitations, dilution, anthropogenic activities and Sea/fresh water incursion from the Atlantic Ocean and the adjourning creeks. A strong regulation in the indiscriminate waste dump and a check in the socioeconomic activities in the Lagos Harbour are very essential.
VL  - 3
IS  - 4
ER  -

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