本文讨论了使用紫外（UV）吸光度作为总有机碳（TOC）和总三卤甲烷（THM）生成潜力的替代参数。本研究使用了两种天然水体，均含有天然有机物:格拉斯河和格伦莫尔水库。对原水样本进行了测试；两个地点都进行了中试工厂研究；对纽约州坎顿和纽约州奥奈达现有的大型工厂进行了监控。研究表明，UV（254 nm）吸光度是非可切割总有机碳（NPTOC）和THM前体（TTHMFP）的良好替代参数- -总三卤甲烷生成潜力）。紫外吸收率可用于估算原水的NPTOC和TTHMFP浓度，监测中试工厂的性能，以及监测全尺寸水处理厂的性能。它可以快速、方便、廉价地测量。包括38个参考文献、表格、图表。

This article discusses the use of ultraviolet (UV) absorbance as a surrogate parameter for total organic carbon (TOC) and total trihalomethane (THM) formation potential. Two natural waters, both containing naturally occurring organic matter, were used in this study: the Grasse River and the Glenmore Reservoir. Testing was done on raw water samples; pilot plant studies took place at both sites; and existing full-scale plants at Canton, New York, and Oneida, New York were monitored. The study indicated that UV (254 nm) absorbance is a good surrogate parameter for nonpurgeable total organic carbon (NPTOC) and THM precursors (TTHMFP--total trihalomethane formation potential). UV absorbance can be used to estimate the NPTOC and TTHMFP concentrations of raw waters, to monitor pilot-plant performance, and to monitor full-scale water treatment plant performance. It can be measured rapidly, easily, and inexpensively. Includes 38 references, tables, figures.