本文讨论了调节发育的内分泌系统， 有机体的生长、繁殖和行为。人们越来越担心 干扰或扰乱该设备正常运行的合成化学品 这是因为某些化学物质可以模仿激素作为 调节内分泌系统的信使。水下三步走法 供应社区解决这一问题的建议是:巩固科学 有关该问题的数据；评估其对特定水质的影响；和 向公众传达这些发现。包括18个参考文献、图表。

This paper discusses the endocrine system, which regulates the development, growth, reproduction, and behavior of an organism. Concern has grown about synthetic chemicals interfering with or disrupting the normal operation of this system because certain chemicals can mimic the hormones that serve as the messengers regulating the endocrine system. A three-step approach by the water supply community to address this issue is recommended: consolidate scientific data about the issue; evaluate its effect on specific water quality; and, communicate these findings to the public. Includes 18 references, figures.