In agricultural production, due to the abuse of plant protection drugs, the source of water in rivers, lakes, canals and ditches is polluted, affecting môo water and human health. Due to the massively aquaculture, lack of planning, does not comply with the technical process should have caused many negative effects to the environment. Along with the use of many improper and chemicals in aquaculture, the residual food floor ponds, lakes, rivers makes the environment polluted water of organic substances, a number of species of organisms and some toxic algae occurrence. The water pollution situation in the municipality is due to sewage, garbage disposal system, no focus that directly discharge source reception (River, Lake, Canal, ditch). On the other hand, there are many production facilities, hospitals and large medical facility in the city are not collectors are the most important source of water source pollution caused.On the State of water pollution in rural and agricultural areas, at present in our country has nearly 76% of the population are living in rural areas where infrastructure is still backward, the greater part of the waste of human and cattle are not handled should seep down to earth or being washed lagm, for the pollution of water resources in terms of organic and microorganism.There are many objective and subjective causes leading to water pollution characteristics, such as the increase in population, the left side of the process of industrialization, modernization, infrastructure is weak, backward, people's awareness of environmental issues was not high.Notably the inadequacies in the management activity, protection of the environment. Perceptions of organizational management agencies and individuals who have responsibility for water environment protection tasks not yet deep and full, yet clearly see water pollution is kind of dangerous pollution directly, and difficult to remedy for human life as well as the sustainable development of the country
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