饮用水中的溴离子（Br-）对公共卫生没有直接影响；然而，在水处理消毒过程中，其存在可能导致溴化消毒副产物（DBPs）。虽然DBP控制的主要重点是有机前体及其与氯或臭氧的反应性，但溴化物已被认为是溴化DBP形成的无机前体。虽然文献表明溴离子是几家主要公用事业公司关心的问题，但目前尚不清楚溴在全国范围内是一个孤立的问题还是一个广泛的问题。本研究的目的是描述全国饮用水源中溴离子的发生情况，并阐明溴化DBP水平形成的相关影响。

Bromide ion (Br-) in drinking water supplies has no direct public health ramifications; however, its presence during water-treatment disinfection can lead to brominated disinfection byproducts (DBPs). While the major focus in DBP control has been on organic precursors and their reactivity with chlorine or ozone, bromide has come to be recognized as an inorganic precursor to brominated DBP formation. While the literature indicates that Br- ion is of concern to several major utilities, it has not been clear as to whether bromide, on a national basis, is an isolated or extensive problem. The purpose of this study is to describe the national occurrence of bromide ion in drinking water sources, and to elucidate related impacts on the formation of brominated DBP levels.