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 | |
| Publication status | Published - 1 Jul 2018 |
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Mercury and risk assessment from consumption of crustaceans, cephalopods and fish from West Peninsular Malaysia. / Anual, Zurahanim Fasha; Maher, William; Krikowa, Frank; Hakim, Lokman; Ahmad, Nurul Izzah; Foster, Simon.
In: Microchemical Journal, Vol. 140, 01.07.2018, p. 214-221.Research output: Contribution to journal › Article
TY - JOUR
T1 - Mercury and risk assessment from consumption of crustaceans, cephalopods and fish from West Peninsular Malaysia
AU - Anual, Zurahanim Fasha
AU - Maher, William
AU - Krikowa, Frank
AU - Hakim, Lokman
AU - Ahmad, Nurul Izzah
AU - Foster, Simon
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
KW - Health risk
KW - HPLC-ICPMS
KW - Methyl mercury
UR - http://www.scopus.com/inward/record.url?scp=85046167327&partnerID=8YFLogxK
U2 - 10.1016/j.microc.2018.04.024
DO - 10.1016/j.microc.2018.04.024
M3 - Article
VL - 140
SP - 214
EP - 221
JO - Microchemical Journal
JF - Microchemical Journal
SN - 0026-265X
ER -