酸雨是全球性的环境问题。它对水环境的影响最主要的是引起ｐＨ值降低 ,使水域中栖息鱼群缩小或影响鱼类的生长。这方面的研究国内外已有一些报道[1 - 3] ,但低ｐＨ对鲤血液电解质影响的研究却少见。鱼类是水生态系统的重要组成部分 ,在水体污染的水质评价及水质监测的毒理学等 Acid rain is a global environmental problem. Its main impact on the water environment is to cause the pH value to drop so that the fish habitat in the water area will reduce or affect the growth of fish. Some researches in this area have been reported at home and abroad [1-3], but the research on the influence of low pH on the blood electrolytes of common carp is rare. Fish is an important component of aquatic ecosystems, water quality assessment of water pollution and toxicology of water quality monitoring