这张幻灯片概述了一项关于使用亚氯酸盐离子控制硝化作用相关人类健康风险的研究。该演讲首先概述了硝化作用、硝酸盐生产、硝化作用产生的水质问题、硝化作用的亚氯酸盐离子控制以及美国各地使用亚氯酸盐离子控制硝化作用的研究的背景信息。给出了风险定义，以及与使用亚氯酸盐相关的风险、与硝化作用相关的风险和其他风险 控制方法、HPC相关风险和 机会性病原体，与pH值降低相关的风险，以及相对风险比较。包括表格、数字。

This slide presentation outlines a study on the relative human health risks associated with using chlorite ion to control nitrification. The presentation begins by outlining background information on nitrification, nitrate production, water quality problems from nitrification, chlorite ion control of nitrification, and studies of nitrification control using chlorite ion across the United States. Risk definitions are given along with risks associated with the use of chlorite, risks associated with nitrification and other control methods, risks associated with HPC and opportunistic pathogens, risks associated with pH depression, and relative risk comparison. Includes tables, figures.