美国公共卫生服务局为社区供水设定了最佳氟化物浓度。该机构的建议被用于绘制美国的氟化地图，描绘最佳浓度。这项研究确定了报告的州最佳氟化物浓度与地图上的浓度的接近程度。最新的氟化普查统计数据用于确定报告的州最佳氟浓度，该浓度代表根据州政策社区供水应氟化的水平。只有五个州报告的州最佳氟化物浓度与氟化地图上的浓度完全匹配。11个州平均报告了较低的州最佳氟化物浓度；32人报告说数额较高。随着关于饮用水中正常氟化物浓度的研究和辩论继续进行，水厂运营商保持对氟化问题的了解是很重要的。 包括42个参考文献、图表。

The US Public Health service sets optimal fluoride concentrations for community water supplies. The agency's recommendations were used to create a fluoridation map of the United States depicting optimal concentrations. This study deternmined how closely reported state optimal fluoride concentrations followed those on the map. The most recent fluoridation census statistics were used to determine the reported state optimal fluoride concentration, which represents the level at which community water supplies should be fluoridated according to state policy. In only five states did the reported state optimal fluoride concentrations exactly match those on the fluoridation map. Eleven states reported lower state optimal fluoride concentrations on average; 32 reported higher amounts. As research and debate continue regarding otimal fluoride concentrations in drinking water, it is important that water plant operators stay current on fluoridation issues. Includes 42 references, figures.