Mercury and risk assessment from consumption of crustaceans, cephalopods and fish from West Peninsular Malaysia

Zurahanim Fasha Anual; William Maher; Frank Krikowa; Lokman Hakim; Nurul Izzah Ahmad; Simon Foster

doi:10.1016/j.microc.2018.04.024

Mercury and risk assessment from consumption of crustaceans, cephalopods and fish from West Peninsular Malaysia

Zurahanim Fasha Anual, William Maher, Frank Krikowa, Lokman Hakim, Nurul Izzah Ahmad, Simon Foster

University of Canberra

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Abstract

Mercury (Hg) is a toxic element and has no known biological functions in humans. This study measured total Hg and methyl mercury (MeHg) concentrations in commonly consumed fish and seafood as well as to estimate the risk of Hg contamination through seafood consumption by Malaysians. The concentrations of total Hg and MeHg in 8 species of crustaceans (n = 15), 5 species of cephalopods (n = 12), and 29 species of fish (n = 78) from West Peninsular Malaysia are reported. Total mercury concentrations in crustaceans, cephalopods and fish were 0.033 ± 0.033 μg/g, 0.040 ± 0.025 μg/g and 0.106 ± 0.128 μg/g wet weight respectively. The proportion of methyl mercury in fish was 81–99% with a mean of 93 ± 5% (n = 15). Significantly higher mercury concentrations were observed in demersal fish, fish on higher trophic level and fish with body length of >20 cm. All fish and seafood were below the Malaysian Food Regulations of 0.5 μg/g wet weight mercury for fish and fishery products and 1.0 μg/g wet weight mercury for predatory fish. The consumption of fish from certain seafood species, however, should be taken into consideration to ensure that the Provisional Tolerable Weekly Intake (PTWI) of MeHg does not exceed 1.6 μg/kg body weight/week.

Original language	English
Pages (from-to)	214-221
Number of pages	8
Journal	Microchemical Journal
Volume	140
DOIs	https://doi.org/10.1016/j.microc.2018.04.024
Publication status	Published - 1 Jul 2018

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title = "Mercury and risk assessment from consumption of crustaceans, cephalopods and fish from West Peninsular Malaysia",

abstract = "Mercury (Hg) is a toxic element and has no known biological functions in humans. This study measured total Hg and methyl mercury (MeHg) concentrations in commonly consumed fish and seafood as well as to estimate the risk of Hg contamination through seafood consumption by Malaysians. The concentrations of total Hg and MeHg in 8 species of crustaceans (n = 15), 5 species of cephalopods (n = 12), and 29 species of fish (n = 78) from West Peninsular Malaysia are reported. Total mercury concentrations in crustaceans, cephalopods and fish were 0.033 ± 0.033 μg/g, 0.040 ± 0.025 μg/g and 0.106 ± 0.128 μg/g wet weight respectively. The proportion of methyl mercury in fish was 81–99% with a mean of 93 ± 5% (n = 15). Significantly higher mercury concentrations were observed in demersal fish, fish on higher trophic level and fish with body length of >20 cm. All fish and seafood were below the Malaysian Food Regulations of 0.5 μg/g wet weight mercury for fish and fishery products and 1.0 μg/g wet weight mercury for predatory fish. The consumption of fish from certain seafood species, however, should be taken into consideration to ensure that the Provisional Tolerable Weekly Intake (PTWI) of MeHg does not exceed 1.6 μg/kg body weight/week.",

keywords = "Fish consumption, Health risk, HPLC-ICPMS, Methyl mercury",

author = "Anual, {Zurahanim Fasha} and William Maher and Frank Krikowa and Lokman Hakim and Ahmad, {Nurul Izzah} and Simon Foster",

note = "Funding Information: The authors acknowledged the assistance by the staff of the Environmental Health Research Centre, Institute for Medical Research for shipment of samples from Malaysia to Australia. Funding for analyses was provided by the Ecochemistry laboratory. The authors would like to thank the Director General of Health, Malaysia for the permission to publish this paper. This study was sponsored by the National Institute of Health (NIH), Ministry of Health Malaysia (Project number NON CAM-JPP-IMR:07-025). Funding Information: The authors acknowledged the assistance by the staff of the Environmental Health Research Centre, Institute for Medical Research for shipment of samples from Malaysia to Australia. Funding for analyses was provided by the Ecochemistry laboratory. The authors would like to thank the Director General of Health, Malaysia for the permission to publish this paper. This study was sponsored by the National Institute of Health (NIH), Ministry of Health Malaysia (Project number NON CAM-JPP-IMR:07-025). Publisher Copyright: {\textcopyright} 2018 The Authors",

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doi = "10.1016/j.microc.2018.04.024",

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AU - Anual, Zurahanim Fasha

AU - Maher, William

AU - Krikowa, Frank

AU - Hakim, Lokman

AU - Ahmad, Nurul Izzah

AU - Foster, Simon

N1 - Funding Information: The authors acknowledged the assistance by the staff of the Environmental Health Research Centre, Institute for Medical Research for shipment of samples from Malaysia to Australia. Funding for analyses was provided by the Ecochemistry laboratory. The authors would like to thank the Director General of Health, Malaysia for the permission to publish this paper. This study was sponsored by the National Institute of Health (NIH), Ministry of Health Malaysia (Project number NON CAM-JPP-IMR:07-025). Funding Information: The authors acknowledged the assistance by the staff of the Environmental Health Research Centre, Institute for Medical Research for shipment of samples from Malaysia to Australia. Funding for analyses was provided by the Ecochemistry laboratory. The authors would like to thank the Director General of Health, Malaysia for the permission to publish this paper. This study was sponsored by the National Institute of Health (NIH), Ministry of Health Malaysia (Project number NON CAM-JPP-IMR:07-025). Publisher Copyright: © 2018 The Authors

PY - 2018/7/1

Y1 - 2018/7/1

N2 - Mercury (Hg) is a toxic element and has no known biological functions in humans. This study measured total Hg and methyl mercury (MeHg) concentrations in commonly consumed fish and seafood as well as to estimate the risk of Hg contamination through seafood consumption by Malaysians. The concentrations of total Hg and MeHg in 8 species of crustaceans (n = 15), 5 species of cephalopods (n = 12), and 29 species of fish (n = 78) from West Peninsular Malaysia are reported. Total mercury concentrations in crustaceans, cephalopods and fish were 0.033 ± 0.033 μg/g, 0.040 ± 0.025 μg/g and 0.106 ± 0.128 μg/g wet weight respectively. The proportion of methyl mercury in fish was 81–99% with a mean of 93 ± 5% (n = 15). Significantly higher mercury concentrations were observed in demersal fish, fish on higher trophic level and fish with body length of >20 cm. All fish and seafood were below the Malaysian Food Regulations of 0.5 μg/g wet weight mercury for fish and fishery products and 1.0 μg/g wet weight mercury for predatory fish. The consumption of fish from certain seafood species, however, should be taken into consideration to ensure that the Provisional Tolerable Weekly Intake (PTWI) of MeHg does not exceed 1.6 μg/kg body weight/week.

AB - Mercury (Hg) is a toxic element and has no known biological functions in humans. This study measured total Hg and methyl mercury (MeHg) concentrations in commonly consumed fish and seafood as well as to estimate the risk of Hg contamination through seafood consumption by Malaysians. The concentrations of total Hg and MeHg in 8 species of crustaceans (n = 15), 5 species of cephalopods (n = 12), and 29 species of fish (n = 78) from West Peninsular Malaysia are reported. Total mercury concentrations in crustaceans, cephalopods and fish were 0.033 ± 0.033 μg/g, 0.040 ± 0.025 μg/g and 0.106 ± 0.128 μg/g wet weight respectively. The proportion of methyl mercury in fish was 81–99% with a mean of 93 ± 5% (n = 15). Significantly higher mercury concentrations were observed in demersal fish, fish on higher trophic level and fish with body length of >20 cm. All fish and seafood were below the Malaysian Food Regulations of 0.5 μg/g wet weight mercury for fish and fishery products and 1.0 μg/g wet weight mercury for predatory fish. The consumption of fish from certain seafood species, however, should be taken into consideration to ensure that the Provisional Tolerable Weekly Intake (PTWI) of MeHg does not exceed 1.6 μg/kg body weight/week.

KW - Fish consumption

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KW - HPLC-ICPMS

KW - Methyl mercury

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DO - 10.1016/j.microc.2018.04.024

M3 - Article

AN - SCOPUS:85046167327

VL - 140

SP - 214

EP - 221

JO - Microchemical Journal

JF - Microchemical Journal

SN - 0026-265X

ER -

Mercury and risk assessment from consumption of crustaceans, cephalopods and fish from West Peninsular Malaysia

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