Mercury Contamination in Fish Research Paper Example | Topics and Well Written Essays - 1000 words

hydrargyrum Contamination in Fish - Research constitution ExampleThe paper is based on cardinal studies carried out in Bangladesh and the U.S. In the first conduct, Rees et al. (2007) aimed at elucidating how toenail quicksilver is related to dietary search consumption in New Hampshire. In the sanction study (Bangladesh study), Shamshad, Shahidur, and Tasrena, (2009) foc used on determining the level of trace elements (including atomic number 80) in fish feed and runt sampled from aquaculture ponds.Mercury is an established heavy metal, environmental pollutant with deleterious health effects in human beings (Eisler, 2006). Mercury toxins lead to neurological impairment in humans (National Research Council, 1978). Mercury in contaminated fish food consumed by pregnant women may affect the unborn babys brain and uneasy system. Children who were affected by atomic number 80 while in the womb have poor cognitive view and memory and reduced concentration (Health Effects, 2012). Studies have proved that adults, children and developing fetuses ar in danger of mercury intoxication (National Research Council, 1978). Schmitt, Stricker and Brumbaugh (2011, p. 1) argue that methyl mercury concentrations in some U.S species of fish (Micropterus dolomieu and Hypentelium nigricans) be significantly high to represent a threat to human health and wildlife. The U.S has a high essay of suffering from mercury intoxication consumed from fish compared to Bangladesh, in spite of Bangladesh having more fish than the U.S. Studies on mercury intoxication are essential because they enable stake holders to devise preventative measures. Thus, this paper examines the effect of mercury toxins in fish in Bangladesh and the U.S. The graph below is an example showing comparing levels of mercury in blood lead and the risk for autism in children. The graph indicates a significant correlation between the two variables. Figure 1 Graph indicating the distribution of Hg levels in charge children, comparing four groups regressive autism, autism of early onset, general population controls and developmentally delayed children. Source http//cfpub.epa.gov/ncer_abstracts/index.cfm/fuseaction/display.highlight/abstract/1773/report/F Materials and Methods The Bangladesh study assessed the level of trace elements content in fish feed and shrimp sampled from aquaculture ponds in Bangladesh by the use of Flame atomic Absorption Spectrometer (FAAS), Cold Vapor Absorption Spectrometer (CV-AAS), and Hydride Generation Atomic Absorption Spectrometer (HG-AAS). The study was based on the theoretical assumption that since tannery and poultry waste are used as fish feed in Bangladesh, there is an accumulation of toxic contaminants in well-mannered fish posing food safety risk. Toxic metals including mercury are used in the cook up of tanneries, dye production, textile dying and paper and pulp mills. Two samples of Shrimp and twelve samples of the feed were cool from different aqu aculture sites in Bangladesh. The sample was washed by de-ionized water and then air-dried. They were then analyzed victimisation FAAS, CV-AAS and HG-AAS (Shamshad, Shahidur, & Tasrena, 2009). The American study was conducted as follows method one participants observed a 3 day daybook of water and seafood consumption which facilitated the calculation of the average consumption of finfish and shell fish on a hebdomadary basis. Method two the average weekly consumption of fish (shell fish, tuna and dark fish) was estimated using fishing gear quantitative food frequency questionnaire. Method three the weekly consumpti