Persistent Organochlorine Compounds Levels in Selected Fish Species from Lake Victoria and Associated Human Health Risks

Alex Wenaty; Arvid Fromberg; Faith Mabiki; Bernard E. Chove; Anders Dalsgaard; Robinson H Mdegela

doi:10.11648/j.aff.20190801.11

Persistent Organochlorine Compounds Levels in Selected Fish Species from Lake Victoria and Associated Human Health Risks

Alex Wenaty^*, Arvid Fromberg, Faith Mabiki, Bernard E. Chove, Anders Dalsgaard, Robinson H Mdegela

^*Corresponding author for this work

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Abstract

Nile perch (L. niloticus ) and Nile tilapia (O. niloticus) are the major commercial fish species in Lake Victoria region of Tanzania. This study was conducted to assess the levels of persistent organochlorine compounds, namely PCBs and OCPs in these two fish species and the probable human health risks associated with the consumption of these two fish species from Lake Victoria. Fish samples were collected between May and August 2016 and the necessary anthropometric measurements such as length and weight were taken. The extraction was done using a modified QuEChERS method and the identification and quantification of the chemicals were done using GC/ECDs. The results of this study revealed that fish species sampled were undersize, which was an indication of overfishing and abuse of bylaws. Among the 19 OCPs which were considered, only four (β- HCH, HCB, Aldrin and Dieldrin) were detected at measurable quantities. β- HCH ranged from

Original language	English
Journal	Agriculture, Forestry and Fisheries
Volume	8
Issue number	1
Pages (from-to)	1-9
ISSN	2328-563X
DOIs	https://doi.org/10.11648/j.aff.20190801.11
Publication status	Published - 2019

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abstract = "Nile perch (L. niloticus ) and Nile tilapia (O. niloticus) are the major commercial fish species in Lake Victoria region of Tanzania. This study was conducted to assess the levels of persistent organochlorine compounds, namely PCBs and OCPs in these two fish species and the probable human health risks associated with the consumption of these two fish species from Lake Victoria. Fish samples were collected between May and August 2016 and the necessary anthropometric measurements such as length and weight were taken. The extraction was done using a modified QuEChERS method and the identification and quantification of the chemicals were done using GC/ECDs. The results of this study revealed that fish species sampled were undersize, which was an indication of overfishing and abuse of bylaws. Among the 19 OCPs which were considered, only four (β- HCH, HCB, Aldrin and Dieldrin) were detected at measurable quantities. β- HCH ranged from ",

author = "Alex Wenaty and Arvid Fromberg and Faith Mabiki and Chove, {Bernard E.} and Anders Dalsgaard and Mdegela, {Robinson H}",

year = "2019",

doi = "10.11648/j.aff.20190801.11",

language = "English",

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AU - Wenaty, Alex

AU - Fromberg, Arvid

AU - Mabiki, Faith

AU - Chove, Bernard E.

AU - Dalsgaard, Anders

AU - Mdegela, Robinson H

PY - 2019

Y1 - 2019

N2 - Nile perch (L. niloticus ) and Nile tilapia (O. niloticus) are the major commercial fish species in Lake Victoria region of Tanzania. This study was conducted to assess the levels of persistent organochlorine compounds, namely PCBs and OCPs in these two fish species and the probable human health risks associated with the consumption of these two fish species from Lake Victoria. Fish samples were collected between May and August 2016 and the necessary anthropometric measurements such as length and weight were taken. The extraction was done using a modified QuEChERS method and the identification and quantification of the chemicals were done using GC/ECDs. The results of this study revealed that fish species sampled were undersize, which was an indication of overfishing and abuse of bylaws. Among the 19 OCPs which were considered, only four (β- HCH, HCB, Aldrin and Dieldrin) were detected at measurable quantities. β- HCH ranged from

AB - Nile perch (L. niloticus ) and Nile tilapia (O. niloticus) are the major commercial fish species in Lake Victoria region of Tanzania. This study was conducted to assess the levels of persistent organochlorine compounds, namely PCBs and OCPs in these two fish species and the probable human health risks associated with the consumption of these two fish species from Lake Victoria. Fish samples were collected between May and August 2016 and the necessary anthropometric measurements such as length and weight were taken. The extraction was done using a modified QuEChERS method and the identification and quantification of the chemicals were done using GC/ECDs. The results of this study revealed that fish species sampled were undersize, which was an indication of overfishing and abuse of bylaws. Among the 19 OCPs which were considered, only four (β- HCH, HCB, Aldrin and Dieldrin) were detected at measurable quantities. β- HCH ranged from

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Persistent Organochlorine Compounds Levels in Selected Fish Species from Lake Victoria and Associated Human Health Risks

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