Water Quality in China and Bangladesh Essay

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Surface water and groundwater are the main sources of readily available freshwater. As a result, their contamination will directly affect human health as seen in China and Bangladesh. In China, the deterioration of water quality was caused by the pollution of the environment by emissions and waste products from industries, agricultural runoffs and improperly disposed sewage. In Bangladesh, natural arsenic is majorly responsible for the contamination in the groundwater. In both countries the low quality of water has greatly affected the health and social aspects of their everyday life. For example, skin lesions, lung and skin cancers are common in Bangladesh, while gastrointestinal diseases are dominant in China. The case studies
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However, most sources of freshwater are non-renewable and will have to be used and allocated efficiently for supplies to be sustainable (Maskaoui et al., 2002). Previous studies have shown a link between water contamination, transfer of diseases and indirectly mortality rates especially since the contaminants are transported with the water as it moves (UNEP, 2007). This paper will determine the importance of surface and groundwater quality in relation to human health in China and Bangladesh.
Freshwater Contamination There is an array of pollutants capable of contaminating freshwater in different ways (Schiedek et al., 2007). Some of these contaminants include fertilizers and pesticides from agriculture farms, heavy metals such as mercury which are prone to long-range transport and oil spills from pipes in the course of transport of fossil fuels (Kundu et al., 2007). Human activities have also been identified as the most prominent cause of freshwater contamination (Liu et al., 2004). Some of these human activities include improper management of agricultural runoff and sewage disposal methods and the use of energy sources that can emit particulates into the atmosphere, which may eventually end up in freshwater bodies (Li et al., 1999). Approximately 50% of untreated waste water is dumped in freshwater bodies. The consumption of contaminated water may cause illnesses such as cholera and

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