Analysis of Monitoring Data of Drinking Water in Rural Areas in Longyan City in 2008

[Objective]To understand sanitary quality of drinking water in rural areas of Longyan city,provide scientific basis for the government to make the plan of the improvement of drinking water in rural areas.[Methods]On-the-spot investigation data and examination data of drinking water quality in monitoring spots in 2008 were analyzed.[Results]1 654 source water samples were tested,the qualified rate was 91.78%,of which the qualified rate was 99.28% from centralized water supply and 88.02% from non-centralized water supply(P0.01).The qualified rate was 98.80% for surface water and 99.67% for groundwater(P0.05).1 654 end water samples were tested,the qualified rate was 7.68%,of which the qualified rate was 39.13%,13.33% and 0.00% from water plant at town level,village level and from non-centralized water supply(P0.01).The content of iron,zinc,manganese and PH in source water was not up to standard,accounting for 1.27%,0.85%,0.97% and 1.51% respectively.The content of fluorid,iron,manganese and PH in end water was not up to standard,accounting for 0.48%,1.27%,0.97% and 2.48% respectively.The content of total colony and total amount of coli group was not up to standard,accounting for 10.28%,40.63% and 7.98% respectively.The qualified rate of free chlorine residue was 7.98%.[Conclusion]The quality of drinking water in rural areas was poor in Longyan city,potential safety hazard existed in non-centralized water supply system.