Abstract
According to characteristic index of spatial-temporal variability of rural drinking water safety in Ya’an City of Sichuan, China, such as water quantity, water quality, convenience degree and guaranteed rate, etc., this study elaborated the basic framework, model’s methodology structure in early warning system of rural drinking water safety on the basis of ComGIS and initially designed information collection, search and re-trieval, evaluation and analysis of factors, dynamic prediction and dynamic early-warning and functions of guidance and management in this system. The design of this system provided scientific basis to grasp the state of rural drinking water safety timely, release early warning information and properly take necessary control measures, etc. The evaluation results showed that the overall trend was getting better. It proved that the rising pressure value and response value were main reasons which caused the rising evaluation value of rural drinking water safety.
Highlights
Water is very important for human development
The main purpose of this study is to develop an early warning system of drinking water safety and apply it to improve water resources management and maintain drinking water safety in Ya’an City
About 321,600 residents drink the water that didn’t reach the quality standards, in which, 23,800 residents lived with water exceeding the standard fluoride content, 15,700 residents suffered from brackish water, 31,100 residents lived with IV-level or above IV-level untreated surface water, 171,400 residents took untreated surface water with bacteriological index seriously exceeding the standards, 10,400 residents suffered from the untreated underground water with heavy pollution, and 69,600 residents took the water with other index exceeding the standards. 551,000 residents suffered from water shortage, 142,800 residents suffered from the inconvenience of water supply, and guaranteed rate of source of water that didn’t reach the standards affected 61,000 residents [12]
Summary
Water is very important for human development. Access to reliable and safe drinking water supply and adequate sanitation is a basic human right, and an unavoidable responsibility of a government.In China, rural drinking water safety refers to enough clean domestic water that residents can obtain timely and and domestic water within the scope of our financial capacity. Access to reliable and safe drinking water supply and adequate sanitation is a basic human right, and an unavoidable responsibility of a government. One is to solve the problem of basic need for water; the other is to ensure drinking water safety. Rural drinking water safety is an important aspect of human security. Over 300 million rural residents still have no access to safe drinking water, facing problems of shortage, severe contamination, water-borne disease and subsequent unhealed diseases. Meeting demand of water resources and access to safe and reliable drinking water for rural communities have become critically environmental and economic challenges, which are hot spot issues in the 11th National Five Year Plan of China
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
