Tambon Muang lamphun province as Chae, tomato, one of thipbop River nofluorai water from the high North on because you don't lose their mineral fluoride. Objective to study fluoride in urine of volunteers who live in the village, Tambon makhua Chae of 21 villages. As a research-oriented model description How to do research, to keep the urine of volunteers stationed in villages. The number of 401 people analyzed by Ion Selective Electrode tool (ISE) analyze the results by using complex statistics Description: average and standard deviation. Study results showed that populations and effects of fluoride in urine of asom of 12 villages. Is fluoride in urine exceeds the standard (more than 3.2 Ku/l) accounted for 51.1 percent.
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