![]() ![]() Removal of the tissues known to contain the highest concentrations of mercury would reduce the mercury content of fish meal. The tissues which have a high content of mercury will be most dangerous from a toxicological viewpoint. Distribution is important, because different cultures consume different fish organs, not just the muscle portion alone. Therefore, it is a suitable model to use for studying the effects of mercury exposure on the distribution of mercury in different tissues of fish. Oreochromis aureus (Steindachner) is a species of tilapia often cultured in ponds and also in cages in North and Latin America. Since many commercial animal feeds contain a fish meal component, monitoring is important from the aspect of contamination of farm animals intended for human consumption. Therefore it is important to monitor the mercury content of fish which are caught or farmed for human consumption. ![]() Minamata disease in humans was first reported in 1956 due to consumption of contaminated fish and shellfish from Minamata Bay. Most cases of mercury poisoning arising more ยป from fish consumption are due to methylmercury because mercury entering the aquatic system rapidly becomes methylated. Whether fish take up organic or inorganic mercury, most of it accumulates in the tissues in the organic form. ![]() The use of mercury in the gold mining industry has caused extensive pollution in the Amazon Basin. Sources of mercury include the chloroalkali industry, the manufacture of electrical equipment, paint, fungicides and dentistry. Consequently, there is no well defined regulatory mechanism present in the animal body and it tends to accumulate readily if available in an animal's environment. Mercury has no known biological functions in the animal body and is described as an ultratrace element. Stanford Synchrotron Radiation Lightsource (SSRL) Sponsoring Org.: USDOE Office of Science (SC), Biological and Environmental Research (BER) Natural Sciences and Engineering Research Council of Canada (NSERC) Canada Foundation for Innovation (CFI) Canada Research Chairs USDOE Office of Science (SC), Basic Energy Sciences (BES) National Institutes of Health (NIH) National Institute of General Medical Sciences (NIGMS) OSTI Identifier: 1608345 Grant/Contract Number: AC02-76SF00515 Resource Type: Journal Article: Accepted Manuscript Journal Name: Environmental Science and Technology Additional Journal Information: Journal Volume: 54 Journal Issue: 5 Journal ID: ISSN 0013-936X Publisher: American Chemical Society (ACS) Country of Publication: United States Language: English Subject: 54 ENVIRONMENTAL SCIENCES Central nervous system Extended X-ray absorption fine structure Mercury Alkyls Manufacturing Cat = , Publication Date: Research Org.: SLAC National Accelerator Lab., Menlo Park, CA (United States). Ministry of the Environment, Kumamoto (Japan).Stanford Synchrotron Radiation Lightsource (SSRL) SLAC National Accelerator Lab., Menlo Park, CA (United States). ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |