Monitoring And Analysis Of Rural Drinking Water In Changyi District Of Jilin City

Objective:Water is one of mankind's survival of material. Drinking water Safety and Health is a measure of socio-economic development and an important indicator of the quality of human life, but also an important factor affecting human health. The safety of China's urban municipal water supply can basically guarantee , the safety of drinking water mainly concentrated in the vast rural areas. For the majority of rural residents to provide health and safety of drinking water is to build a new socialist countryside needs, but also social development. To be adopted by this study to understand:1. The basis situation of water supply points of different type of water supply (small central water supply and non-central water supply) in rural areas in Changyi district of Jilin city.2. The main failure indicator of rural drinking water in dry season in Changyi district of Jilin city; The differences in water quality of different type of water supply (small central water supply and non-central water supply) in dry season.3. The main failure indicator of rural drinking water in wet period in Changyi district of Jilin city; The differences in water quality of different type of water supply (small central water supply and non-central water supply) in wet period.4. The differences in water quality of rural drinking water between dry season and wet period in Changyi district of Jilin city.5. Water storage device whether it is a way of microbial contamination of rural drinking water in Changyi district of Jilin city.Hope that the results of this study for the departments concerned to formulate scientific and effective measures to provide a reference and a basis.Method:1. Randomly selected 43 water supply points in Changyi district rural areas as dry season monitoring points, including 13 small central water supply and 30 non-central water supply.2. Randomly selected 43 water supply points in Changyi district rural areas as wet period monitoring points, including 13 small central water supply and 30 non-central water supply.3. Develop questionnaire: Each monitoring point to investigate the basic conditions and fill out the questionnaire.4. Sample collection: Small central water supply collecting treated water, peripheral water and water in storage device. Non-central water supply collecting well water and water in storage device.5. Sample testing: Treated water, peripheral water and well water testing 19 indicators including chroma etc. Water in storage device testing total numbers of colony, total coliforms and thermotolerant coliforms.6. Statistical analysis: Use SPSS15.0, for data entry and analysis, description of the various statistical indicators, statistical inference using chi-square test and exact probabilities in 2╳2 table.Result:1. Monitoring and analysis of water quality in dry season(1). The main indicators of failure and the pass rate of rural drinking water in Changyi district of Jilin city are visible objects (37.5%), Mn (55.4%), turbidity (60.7%), ammonia nitrogen (60.7%), total coliforms (67.4%), total numbers of colony (70.5%).(2). The turbidity pass rate of small central water supply (84.6%) is higher than non-central water supply's (36.7%) (X2=8.345 P=0.004).(3). The sensory traits and general chemical indicators pass rate of small central water supply (38.5%) is higher than non-central water supply's (6.7%) (X2=4.597 P=0.032). The microbial indicators pass rate of small central water supply (100.0%) is higher than non-central water supply's (60.0%) (X2=5.362 P=0.021).(4). The total pass rate of small central water supply (38.5%) is higher than non-central water supply's (6.7%) (X2=4.597 P=0.032).(5). The microbial indicators pass rate of the water before entering storage device (67.4%) is higher than the microbial indicators pass rate of the water in storage device (23.1%) (X2=16.188 P=0.000).2. Monitoring and analysis of water quality in wet period(1). The main indicators of failure and the pass rate of rural drinking water in Changyi district of Jilin city are total coliforms (36.2%), thermotolerant coliforms (41.5%), total numbers of colony (47.9%), visible objects (48.2%), turbidity (58.9%), Mn (69.6%).(2). The total coliforms pass rate of small central water supply (100.0%) is higher than non-central water supply's (26.7%) (X2=19.521 P=0.000). The thermotolerant coliforms pass rate of small central water supply (100.0%) is higher than non-central water supply's (36.7%) (X2=14.751 P=0.000).(3). The microbial indicators pass rate of small central water supply (92.3%) is higher than non-centeral water supply's (23.3%) (X2=17.496 P=0.000).(4). The total pass rate of small central water supply (38.5%) is higher than non-central water supply's (6.7%) (X2=4.597 P=0.032).(5). The microbial indicators pass rate of the water before entering storage device (37.2%) is higher than the microbial indicators pass rate of the water in storage device's (0.0%) (X2=17.620 P=0.000).3. Water quality in dry season in comparison with water quality in wet period(1). All indicators of small central water supply have no significant difference between dry season and wet period.(2). The total coliforms pass rate of non-central water supply in dry season (80.0%) is higher than in wet period (26.7%) (X2=17.143 P=0.000). The thermotolerant coliforms pass rate of non-central water supply in dry season (93.3%) is higher than in wet period (36.7%) (X2=21.172 P=0.000).(3). The microbial indicators pass rate of non-central water supply in dry season (60.0%) is higher than in wet period (23.3%) (X2=8.297 P=0.004).(4). The total pass rate of non-central water supply have no significant difference between dry season and wet period.(5). The total pass rate of rural drinking water in Changyi district have no significant difference between dry season and wet period.Conclusion:1. Monitoring and analysis of water quality in dry season(1). The main indicators of failure of rural drinking water in Changyi district in dry season are sensory traits and general chemical indicators, and microbial indicators.(2). The water quality of small central water supply is better than the water quality of non-central water supply in dry season. (3). Water storage device is a way of microbial contamination of rural drinking water in Changyi district in dry season.2. Monitoring and analysis of water quality in wet period(1). The main indicators of failure of rural drinking water in Changyi district in wet period are sensory traits and general chemical indicators, and microbial indicators.Microbial indicators in particular, especially low.(2). The microbial indicators pass rate of small central water supply in wet period is significantly higher than non-central water supply's in wet period.(3). The water quality of small central water supply is better than the water quality of non-central water supply in wet period.(4). Water storage device is a way of microbial contamination of rural drinking water in Changyi district in wet period.3. Water quality in dry season in comparison with water quality in wet period(1). The water quality of small central water supply have no significant difference between dry season and wet period.(2). The microbial indicators pass rate of non-central water supply in dry season is higher than in wet period.(3). The microbial indicators pass rate of rural drinking water in Changyi district in dry season is higher than in wet period.(4). The total pass rate of rural drinking water in Changyi district have no significant difference between dry season and wet period.Advice:1. Rural drinking water in Changyi district should access to municipal water supply. If they can not access to municipal water supply, may build up larger-scale, fully-equipped small central water supply.2. Farmers who rely on non-central water supply can install small water purifier.3. Strengthen publicity to raise the health consciousness of the farmers. Equipped clean and covered storage device, and disinfect storage device and water in storage device on a regular basis.4. The supervision and monitoring of rural drinking water should focus on microbial contamination of non-central water supply in wet period.