Evaluation of Heavy Metal Pollution in Commonly Consumed Mollusc (Crassostrea gasar) from Elechi Creek, River State, Nigeria and the Health Risk Implications

Ibienebo Chris Davies; Emeka Donald Anyanwu; Evelyn Godwin Amaewhule

Article Details

Evaluation of Heavy Metal Pollution in Commonly Consumed Mollusc (Crassostrea gasar) from Elechi Creek, River State, Nigeria and the Health Risk Implications

Authors:

Ibienebo Chris Davies | Emeka Donald Anyanwu | Evelyn Godwin Amaewhule

Publisher:

Turkish Chemical Society

Main Topics:

Biochemistry and Cell Biology (Other) | Analytical Spectrometry | Bioassays | Metal Cluster Chemistry

Journal:

Journal of the Turkish Chemical Society Section A: Chemistry Vol.11 Issue 2, pp.525-532

Document Type:

Article

Publication Date:

5/2024

Document Language:

English

Document ID (Org No.):

2001309567

pISSN:

2149-0120

Keywords:

Abstract:

 Marine biotas are used to assess potential adverse human health risks associated with consuming protein-rich aquatic organisms. Heavy metal content of Mangrove oysters Crassostrea gasar was evaluated between January and June 2022 in 3 stations. Six heavy metals copper, cadmium, zinc, lead, arsenic and iron were determined using standard methods. Target Hazard Quotient THQ and Hazard Index HI were used for the non-carcinogenic assessment while Target Cancer Risk TR was used for the carcinogenic assessment of the potential human health risk of consuming the oysters. The heavy metal values recorded were Cu 473.2  596.7 mgkg, Cd 2.33  3.84 mgkg, 209.02  246.41 mgkg, Pb 6.16  12.07 mgkg, As 0.012  0.016 mgkg and Fe 1609.0  1846.0 mgkg. All the heavy metals were above the acceptable limits except arsenic. Stations 2 and 3 had relatively higher values; attributed to anthropogenic activities. The THQ and HI values were less than 1 in all the metals and stations while TR for Pb and arsenic were within the negligible range in all the stations. However, Cd was unacceptable among the children in station 2. Station 3 had relatively higher values while the children were more vulnerable to both non-carcinogenic and carcinogenic risks. In conclusion, the consumption of oysters from Elechi Creek is considered safe based on acceptable levels of the THQ, HI and TR; though Cd-TR for children Station 2 was unacceptable.

 Marine biotas are used to assess potential adverse human health risks associated with consuming protein-rich aquatic organisms. Heavy metal content of Mangrove oysters Crassostrea gasar was evaluated between January and June 2022 in 3 stations. Six heavy metals copper, cadmium, zinc, lead, arsenic and iron were determined using standard methods. Target Hazard Quotient THQ and Hazard Index HI were used for the non-carcinogenic assessment while Target Cancer Risk TR was used for the carcinogenic assessment of the potential human health risk of consuming the oysters. The heavy metal values recorded were Cu 473.2  596.7 mgkg, Cd 2.33  3.84 mgkg, 209.02  246.41 mgkg, Pb 6.16  12.07 mgkg, As 0.012  0.016 mgkg and Fe 1609.0  1846.0 mgkg. All the heavy metals were above the acceptable limits except arsenic. Stations 2 and 3 had relatively higher values; attributed to anthropogenic activities. The THQ and HI values were less than 1 in all the metals and stations while TR for Pb and arsenic were within the negligible range in all the stations. However, Cd was unacceptable among the children in station 2. Station 3 had relatively higher values while the children were more vulnerable to both non-carcinogenic and carcinogenic risks. In conclusion, the consumption of oysters from Elechi Creek is considered safe based on acceptable levels of the THQ, HI and TR; though Cd-TR for children Station 2 was unacceptable.

 Marine biotas are used to assess potential adverse human health risks associated with consuming protein-rich aquatic organisms. Heavy metal content of Mangrove oysters Crassostrea gasar was evaluated between January and June 2022 in 3 stations. Six heavy metals copper, cadmium, zinc, lead, arsenic and iron were determined using standard methods. Target Hazard Quotient THQ and Hazard Index HI were used for the non-carcinogenic assessment while Target Cancer Risk TR was used for the carcinogenic assessment of the potential human health risk of consuming the oysters. The heavy metal values recorded were Cu 473.2  596.7 mgkg, Cd 2.33  3.84 mgkg, 209.02  246.41 mgkg, Pb 6.16  12.07 mgkg, As 0.012  0.016 mgkg and Fe 1609.0  1846.0 mgkg. All the heavy metals were above the acceptable limits except arsenic. Stations 2 and 3 had relatively higher values; attributed to anthropogenic activities. The THQ and HI values were less than 1 in all the metals and stations while TR for Pb and arsenic were within the negligible range in all the stations. However, Cd was unacceptable among the children in station 2. Station 3 had relatively higher values while the children were more vulnerable to both non-carcinogenic and carcinogenic risks. In conclusion, the consumption of oysters from Elechi Creek is considered safe based on acceptable levels of the THQ, HI and TR; though Cd-TR for children Station 2 was unacceptable.

 Marine biotas are used to assess potential adverse human health risks associated with consuming protein-rich aquatic organisms. Heavy metal content of Mangrove oysters Crassostrea gasar was evaluated between January and June 2022 in 3 stations. Six heavy metals copper, cadmium, zinc, lead, arsenic and iron were determined using standard methods. Target Hazard Quotient THQ and Hazard Index HI were used for the non-carcinogenic assessment while Target Cancer Risk TR was used for the carcinogenic assessment of the potential human health risk of consuming the oysters. The heavy metal values recorded were Cu 473.2  596.7 mgkg, Cd 2.33  3.84 mgkg, 209.02  246.41 mgkg, Pb 6.16  12.07 mgkg, As 0.012  0.016 mgkg and Fe 1609.0  1846.0 mgkg. All the heavy metals were above the acceptable limits except arsenic. Stations 2 and 3 had relatively higher values; attributed to anthropogenic activities. The THQ and HI values were less than 1 in all the metals and stations while TR for Pb and arsenic were within the negligible range in all the stations. However, Cd was unacceptable among the children in station 2. Station 3 had relatively higher values while the children were more vulnerable to both non-carcinogenic and carcinogenic risks. In conclusion, the consumption of oysters from Elechi Creek is considered safe based on acceptable levels of the THQ, HI and TR; though Cd-TR for children Station 2 was unacceptable.

Article Details

Evaluation of Heavy Metal Pollution in Commonly Consumed Mollusc (Crassostrea gasar) from Elechi Creek, River State, Nigeria and the Health Risk Implications

Authors:

Ibienebo Chris Davies | Emeka Donald Anyanwu | Evelyn Godwin Amaewhule

Publisher:

Turkish Chemical Society

Main Topics:

Biochemistry and Cell Biology (Other) | Analytical Spectrometry | Bioassays | Metal Cluster Chemistry

Journal:

Journal of the Turkish Chemical Society Section A: Chemistry Vol.11 Issue 2, pp.525-532

Document Type:

Article

Publication Date:

5/2024

Document Language:

English

Document ID (Org No.):

2001309567

pISSN:

2149-0120

Heavy metals

Mangrove oysters

Health risks

Hazard Quotient

Carcinogenic assessment

Issues

Article Details

Evaluation of Heavy Metal Pollution in Commonly Consumed Mollusc (Crassostrea gasar) from Elechi Creek, River State, Nigeria and the Health Risk Implications

Authors: Ibienebo Chris Davies | Emeka Donald Anyanwu | Evelyn Godwin Amaewhule

Publisher: Turkish Chemical Society

Main Topics: Biochemistry and Cell Biology (Other) | Analytical Spectrometry | Bioassays | Metal Cluster Chemistry

Journal: Journal of the Turkish Chemical Society Section A: Chemistry Vol.11 Issue 2, pp.525-532

Document Type: Article

Publication Date: 5/2024

Document Language: English

Document ID (Org No.): 2001309567

pISSN: 2149-0120

Heavy metals

Mangrove oysters

Health risks

Hazard Quotient

Carcinogenic assessment

Issues

Authors:

Ibienebo Chris Davies | Emeka Donald Anyanwu | Evelyn Godwin Amaewhule

Publisher:

Turkish Chemical Society

Main Topics:

Biochemistry and Cell Biology (Other) | Analytical Spectrometry | Bioassays | Metal Cluster Chemistry

Journal:

Journal of the Turkish Chemical Society Section A: Chemistry Vol.11 Issue 2, pp.525-532

Document Type:

Article

Publication Date:

5/2024

Document Language:

English

Document ID (Org No.):

2001309567

pISSN:

2149-0120