Clean water is also indispensable factors in production. Water for irrigation for agriculture. Water to reduce heat heavy industrial machines, water to clean raw materials for light industry ... Clean water is a resource for the maintenance and development of the economy.However, the current status of water sources pollution increasing, many places, contaminated water sources. The main cause is due to people not to protect water supplies, cause many health problems and human life, including notably the waste, the waste of factories and export processing zones and the extraction of minerals, oil and gas deposits. In addition, there are a number of natural causes as the volcano, tsunami, flood, ...Because of the siege, we must put forward a number of measures to protect fresh water sources.Water pollution caused by humans is direct risk causing more health problems and human life, in which significant human waste (feces, garbage, water), waste of factories and export processing zones and the extraction of minerals, oil and gas deposits.many places
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