Objective:To investigate the contamination of urea in swimming poor water in Xiamen city from 2010to 2013for improvement.Method:The swimming poor water samples were detected based on the way of Determination of Urea in Swimming Water(GB/T 18204.29-2000)in Standard Methods for Hygienic Examination in Public Areas.Result:457swimming poor water samples were detected from 2010to 2013with a qualified rate of 93.0%.The qualified rate of urea in swimming water was increasing year by year from 2010to 2012,but the q...