本文所述调查的目的是评估臭氧技术在北美用于水处理的地点和方式。具体目标是提供现有工厂的数据库，预测未来条件，并从以前的经验中学习。包括表格、数字。

The purpose of the survey described in this article was to take stock of where and how ozone technology is being used for water treatment in North America. Specific objectives were to provide a data base on existing plants, to project future conditions, and to learn from previous experience. Includes tables, figures.