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对贵阳市区及近郊的三条主要河流水中细菌污染情况进行采样调查。结果表明，细菌总数为０．６×１０２～１．２×１０５ＣＦＵ／ｍｌ；大肠菌群数最低小于９０个／Ｌ，最高大于２３８００个／Ｌ。并分离出鼠伤寒沙门菌１１株，伤寒沙门菌５株，且均为多重耐药株。提示所调查的三条河流细菌污染较为严重。
A sampling investigation was conducted on the bacterial contamination of water in the three major rivers in the urban area and the suburbs of Guiyang. The results showed that the total number of bacteria was 0.6 × 102 ~ 1.2 × 105CFU / ml; the minimum number of coliforms was less than 90 / L and the maximum was more than 23800 / L. 11 strains of Salmonella typhimurium and 5 strains of Salmonella typhi were isolated, and all were multi-drug resistant strains. It is suggested that the bacterial contamination of the three rivers investigated is more serious.