Test Your Water IQ

{“questions”:{“ndwq9”:{“id”:”ndwq9″,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:”What is the most common impurity found in U.S. tap water?”,”desc”:”According to the Environmental Working Group\u2019s Tap Water Database,1 the most common contaminant in tap water is THMs, or trihalomethanes, which occur when chlorine, commonly used to disinfect tap water, combines with organic matter in water. At elevated levels, THMs have been associated with increased…

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