论文部分内容阅读
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 analyze the occurrence and trend of drinking water pollution accidents in Beijing and provide evidence for prevention and control. Methods The number of drinking water pollution accidents in Beijing was collected and the trend of drinking water pollution accidents in Beijing from 1960 to 2008 was analyzed. Results In the 21st century, drinking water pollution in urban suburbs still remained high (51.5%), and the number of pollution accidents in suburban counties significantly increased (35.9%). The pollution caused by self-provided water sources was the most common (54.4%). High physical and biological contamination (48.5% and 43.7%, respectively). Conclusion The trend of drinking water pollution accidents in Beijing is related to urban development. Based on the principles of early warning, water conservation and protection, and the trend of changes in drinking water pollution accidents, appropriate safety control measures should be taken.