Concentration and Exposure Assessment of Mercury in Commercial Fish and Other Seafood Marketed in Oman

被引:18
作者
Al-Mughairi, Sabra [1 ]
Yesudhason, Poulose [1 ]
Al-Busaidi, Moza [1 ]
Al-Waili, Aaliah [1 ]
Al-Rahbi, Waleed A. K. [1 ]
Al-Mazrooei, Nashwa [1 ]
Al-Habsi, Saoud H. [1 ]
机构
[1] Minist Agr & Fisheries Wealth, Fishery Qual Control Ctr, Muscat 100, Oman
关键词
canned fish; exposure assessment; fish consumption; mercury; Oman; HEAVY-METALS; HG CONCENTRATIONS; MARINE FISH; METHYLMERCURY; ACCUMULATION; RISK; CHILDREN; CADMIUM; TUNA; OMEGA-3-FATTY-ACIDS;
D O I
10.1111/1750-3841.12150
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
The results of this study present analytical data of the mercury levels in several fish and shellfish species to create awareness among individuals of the risks associated with consuming fish contaminated with mercury. Mercury concentrations varied from a mean of 0.02 mg/kg in Indian mackerel to 0.19 mg/kg in shark in both fresh and frozen fish, from 0.02 mg/kg in sardines to 0.18 mg/kg in skipjack tuna in canned fish, and from 0.02 mg/kg in Indian mackerel to 0.79 mg/kg in shark in dried fish. Shellfish contained a slightly higher amount of mercury than fresh or frozen fish with a mean of 0.09 mg/kg. Trophic position, followed by habitat, was the most important factors for variability in mercury concentrations in fish and shellfish. The maximum safe weekly intake (MSWI) values of mercury were significantly higher for herbivores than for carnivores. The MSWI value for total mercury in the case of consuming most (72%) fish species was more than 5 kg; however, the MSWI value was never more than 5 kg in most (66%) shellfish species. Risks were identified upon consumption of 120 g of dried shark when exceeding the provisional tolerable weekly intake threshold (1.6 g/kg) for methylmercury. Therefore, fish-eating populations should reduce the quantity of dried shark to efficiently diminish the exposure to mercury.
引用
收藏
页码:T1082 / T1090
页数:9
相关论文
共 66 条
[1]   Toxic metals in commercial marine fish in Oman with reference to national and international standards [J].
Al-Busaidi, M. ;
Yesudhason, P. ;
Al-Mughairi, S. ;
Al-Rahbi, W. A. K. ;
Al-Harthy, K. S. ;
Al-Mazrooei, N. A. ;
Al-Habsi, S. H. .
CHEMOSPHERE, 2011, 85 (01) :67-73
[2]   Aspects of the safety of fish caught off the coast of Qatar [J].
Al-Jedah, JH ;
Robinson, RK .
FOOD CONTROL, 2001, 12 (08) :549-552
[3]   An assessment of the total and methyl mercury content of zooplankton and fish tissue collected from Kuwait territorial waters [J].
Al-Majed, NB ;
Preston, MR .
MARINE POLLUTION BULLETIN, 2000, 40 (04) :298-307
[4]   A survey of total mercury and methylmercury in edible fish and invertebrates from Azorean waters [J].
Andersen, JL ;
Depledge, MH .
MARINE ENVIRONMENTAL RESEARCH, 1997, 44 (03) :331-350
[5]  
[Anonymous], 1983, FAO Fishery circular, P5
[6]   Accumulation of heavy metals in kidney and heart tissues of Epinephelus Microdon fish from the Arabian Gulf [J].
Ashraf, W .
ENVIRONMENTAL MONITORING AND ASSESSMENT, 2005, 101 (1-3) :311-316
[7]   Levels of selected metals in canned fish consumed in Kingdom of Saudi Arabia [J].
Ashraf, Waqar ;
Seddigi, Zaki ;
Abulkibash, Abdallah ;
Khalid, Mazen .
ENVIRONMENTAL MONITORING AND ASSESSMENT, 2006, 117 (1-3) :271-279
[8]   Survey of persistent organochlorine contaminants (PCBs, PCDD/Fs, and PAHs), heavy metals (Cu, Cd, Zn, Pb, and Hg), and arsenic in food samples from Huelva (Spain):: Levels and health implications [J].
Bordajandi, LR ;
Gómez, G ;
Abad, E ;
Rivera, J ;
Fernández-Bastón, MD ;
Blasco, J ;
González, MJ .
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 2004, 52 (04) :992-1001
[9]  
Burger J., 2005, ENV HLTH PERSPECT, V113, P1
[10]   Mercury levels and potential risk from subsistence foods from the Aleutians [J].
Burger, Joanna ;
Gochfeld, Michael ;
Jeitner, Christian ;
Burke, Sean ;
Stamm, Tim ;
Snigaroff, Ronald ;
Snigaroff, Dan ;
Patrick, Robert ;
Weston, Jim .
SCIENCE OF THE TOTAL ENVIRONMENT, 2007, 384 (1-3) :93-105