Mercury Contamination Case Study

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Presented in this chapter are the various related literature to establish a strong framework of this experimental endeavour. Mercury Contamination Wang, F., Jiang, & C. Cheng (2006) claimed that the mercury entering the atmosphere account for about 30% of its total amount each year because of human activity especially coal burning, mining, and industrial activities thus increasing the mobilization into the environment raising the amounts of mercury released in the atmosphere, soil, and the ocean. Agarwal et al (2014) agreed with it and pointed some causes of high toxicity level of mercury which includes careless handling of industrial effluents and the direct disposal into bodies of water marine like fresh water and marine water. Hadi et…show more content…
2. A year after, the Department of Environment and Natural Resources‐Environmental Management Bureau (DENR‐EMB) and Mines and Geoscience Bureau (MGB) conducted the status of mercury contamination from several major rivers located in Davao Region associated with small-scale mining including Naboc, Kingking, Hijo, Matiao and Agusan. Furthermore, based on the result gathered by DENR-EMB and MGB, Naboc River was found to have the highest concentration of mercury among the above-mentioned rivers which contains 0.15 mg/L (Huynh, T., Edraki, M. & Mulligan, D.,…show more content…
The effect depends on the way the mercury enters the body and also the type and amount of compound. Other effects of mercury are blindness and loss of consciousness. For a pregnant woman, it can affect the baby’s brain development. Moreover, Dr. Harvey Clewell pointed out that there are several effects of mercury in baby and infants such as late development in walking and talking (Hyman, 2004). In 2004, JECFA (Joint FAO/WHO Expert Committee on Food Additives) has set a maximum intake of methyl mercury to 1.6x〖10〗^(-6) g/kg of bodyweight per week to ensure the health of the fetus from the neurotoxic effects of mercury (World Health Organization, 2007). Minamata disease is one of the diseases caused by mercury poisoning. It was occurred in humans who ate fish and shell fish living in the waters of Minamata Bay in the year 1956 as stated by Harada (1995). Effects of the adsorption of mercury compound such as methyl mercury can be severe and could lead to death (Hadi et al,

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