Volume 1, Issue 2 (9-2011)                   JABS 2011, 1(2): 24-31 | Back to browse issues page

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Esmaili-Sari A, Abdollahzadeh E, Joorabian Shooshtari S, Ghasempouri S M. Fish consumption limit for mercury compounds. JABS 2011; 1 (2) :24-31
URL: http://jabs.fums.ac.ir/article-1-57-en.html
1- , Ghasempm@modares.ac.ir
Abstract:   (18591 Views)

Background and objectives: Methyl mercury can carry out harmful effects on the reproductive, respiratory, and nervous system of human. Moreover, mercury is known as the most toxic heavy metal in nature. Fish and seafood consumption is the major MeHg exposure route for human. The present study tries to cover researches which have been conducted on mercury levels in 21 species of fish from Persian Gulf, Caspian Sea and Anzali Wetland during the past 6 years, and in addition to stating mercury level, it provides recommendations about the restriction of monthly fish consumption for each species separately.

Material and methods: Fish samples were transferred to the laboratory and stored in refrigerator under -20oC until they were dissected. Afterwards, the muscle tissues were separated and dried. The dried samples were ground and changed into a homogenous powder and then the mercury concentration rate has been determined by advanced mercury analyzer, model 254.

Results: In general, mercury contamination in fishes caught from Anzali Wetland was much more than fishes from Caspian Sea. Also, from among all studied fishes, oriental sole (Euryglossa orientalis), caught from Persian Gulf, allocated the most mercury level to itself with the rate of 5.61ml per kg., therefore, it exercises a severe consumption restriction for pregnant women and vulnerable groups.

Conclusion: Based on the calculations, about 50% of fishes, mostly with short food chain, can be easily consumed during the year. However, with regard to Oriental sole (Euryglossa orientalis) and shark (Carcharhinus dussumieri), caught from Persian Gulf, special consideration should be taken in their consumption. On the other hand, careful planning should be made for the high rate of fish consumption among fishing community.

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Type of Study: Research | Subject: Environmental Health
Received: 2013/02/11 | Accepted: 2013/09/14 | Published: 2013/09/14

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