城市自来水中发现虫体（低等动物）屡有报道，但在干旱少雨，年气温变化较大的偏远城镇还实属少见。本文报告通辽市自来水中水蚯蚓的发现、判定与防治的过程。１材料来源１９９７年２月２４日由市自来水公司检验科送至本实验室水样（瓶装）５份，里面含虫体数量不等，其中... Insect bodies (lower animals) found in urban tap water have been reported frequently, but it is still rare in remote towns where there is less rainfall and more annual temperature changes. This article reports the discovery, determination and prevention of water earthworms in tap water in Tongliao City. 1 Material Source February 24, 1997 by the City Water Company Laboratory Division sent to the laboratory water samples (bottled) 5 copies, which contains the number of insects ranging, where ...