拿什么保护净水（With what protection pure water）.docVIP

拿什么保护净水（With what protection pure water） In the past two years, an unfamiliar professional term blood lead has become the hot words people often talk about. Following the Shaanxi, Fengxiang, Fujian, Shanghang, Guangdong, Qingyuan, Yunnan, Heqing, Henan, Jiyuan, Hunan, Chenzhou and other places in succession, blood lead exceeded after the incident. In early 2011, Anhui, Huaining exposed blood lead exceeded incident, once again sounded alarm for the Chinese people. The protection of the water resources and the development of the water purification industry are inseparable from the two basic requirements of the industry standards and supervision. However, what is the situation in China? Health killer Lead pollution in drinking water accounts for more than 25% of the total amount of lead pollution in the body Lead pollution incidents continue to occur, the reason is mainly illegal production enterprises excessive emissions, waste water pollution caused by local air and water sources. At present, lead poisoning in children caused by lead pollution is especially serious in heavy metal pollution. Lead (PB) is widely found in nature. It has been developed and utilized since it was recorded by human beings. Especially in the past one hundred years, lead has been widely used in industry, agriculture, and peoples daily life. Therefore, the degree of lead pollution is increasing, and the harm to human health is also increasing. According to the United States Environmental Protection Agency survey for many years: the bodys lead mainly from air, food and drinking water, while drinking water lead pollution accounted for more than 25% of the total amount of lead pollution. This is a problem that can not be neglected or avoided. There are two main sources of lead in drinking water. The first is the discharge of industrial pollutants and waste water (mainly: smelting, mining, chemical, printing and dyeing industries). And the widespread use of pesticides and pesticides in agricultura