Inorganic
Mercury, lead, selenium, arsenic, cadmium, sulphites(used in shrimp processing)
Organic
Polychlorinated biphenyls, dioxins, insecticides
Chemical contaminations are caused by industrial procesing, waste from sewage treatment plants, untreatment raw sewage from populations. Based on study from researchers, "organochlorine levels in fish intended for human consumption are low and probably below levels likely to adversely affect human health." The more concern population are those whom seafood is major part of the diet, infants and young children that consume substantial quantities of oily fish.
Critical limits of chemical substances in seafood.
Processing related compounds
Nitrosamines, antibiotics, hormones
Antibiotics are often used to treat the infections in seafood to treat the pathogenic infections.
There is a concern on the effects on antibiotics residues, having effect on human health, as antibiotics are being used on all food of animal origins other than fish. Possible hazards of the presence of antibiotics drugs residues are allergies, toxic effects, acquisition of drug resistance in pathogens in the human body.
for more information on Chemical hazards in seafood.
http://www.fao.org/DOCREP/006/Y4743E/y4743e0e.htm#TopOfPage
shanlyn is SAFE @ 5:11 PM
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