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.
| DOI | 10.11648/j.ijsts.20150304.19 |
| Published in | International Journal of Science, Technology and Society (Volume 3, Issue 4, July 2015) |
| 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. |
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Copyright © The Author(s), 2024. Published by Science Publishing Group |
Lagos Harbour, Marine Debris, Atomic Absorption Spectrophotometer, Trace Metals, Contamination Ratio, Anthropogenic Activities
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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
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
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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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}
}
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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