This document presents a training course on water pollution developed by the staff of the National Research Center, Cairo, Egypt. This course, which is organized by the Arab League Educational, Cultural and Scientific Organization (ALECSO), is intended for Junior Bachelor of Science (B.S.) graduates from various Arab countries. The duration of the course is seven weeks. It covers five areas: (1) microbiology of water and sewage water; (2) the role of aquatic organisms as indicators of pollution; (3) chemical methods for detecting pollution; (4) water quality criteria; and (5) domestic and industrial liquid wastes. The course content is presented and designed to be taught in Arabic. (HM)