北京市生活饮用水污染事故趋势分析及对策研究

Countermeasure and Trend of Drinking Water Pollution Accidents in Beijing

目的分析北京市饮水污染事故的发生情况及变化趋势,为预防控制工作提供依据。方法收集北京市年代别饮水污染事故发生数,对北京市1960-2008年饮水污染事故进行趋势分析。结果21世纪以来,城近郊区饮用水污染事故仍居高(占51.5%),且远郊县发生的污染事故数量明显上升(占35.9%);以自备水源污染为主(占54.4%);物理性和生物性污染居高(分别占48.5%和43.7%)。结论北京市饮水污染事故的变化趋势与城市发展相关联,应基于预警、节水和加强保护的原则及饮水污染事故趋势变化特点,采取相应的安全控制对策。

Objective To study the trend in the occurrence of drinking water pollution in Beijing , and provide some preventive measures. Methods The data from drinking water pollution accidents in Beijing were collected , and drinking water pollution accidents from 1960 to 2008 were analyzed. Results Since the 21st century, the occurrence proportion of drinking water pollution in the peri - urban and rural areas were higher than those in the urban, the percentages were 51.5% ,35.9% and 12.6%, respectively. Main pollution classification was physical and biological pollution（ occupying 48. 5% and 43.7% ）. Conclusion The trend of drinking water pollution in Beijing is the connection of space and time in urban development and variation. Some control countermeasures should be taken on the basis of warning for drinking water pollution, saving water, enhancing protection and grasping pollutant trend.