Thirkell D, Blankson M
Antonie Van Leeuwenhoek. 1981;47(2):133-45. doi: 10.1007/BF02342196.
The occurrence of coliforms in a small water course was shown to increase by a factor of thirty six below the outfall of a sewage treatment plant. Speciation of the bacteria from above and below the sewer outfall showed that Escherichia coli and Enterobacter species predominated. Drug resistance levels were significant in microorganisms from both sampling sites and the occurrence of a significant number of multiple-resistant microorganisms, particularly E. coli, is reported. Both E. coli and Enterobacter species from below the sewer outfall show a statistically significant increase in resistance to ampicillin and E. coli from below the outfall also shows a statistically significant increase in resistance to sulpha-methoxazole as compared with isolates from above the outfall.
研究表明，在某小型水道中，污水处理厂排水口下游大肠菌群的数量增加了36倍。对排水口上下游细菌的种类分析表明，大肠杆菌和肠杆菌属占主导地位。两个采样点微生物的耐药水平都很高，且报告称存在大量多重耐药微生物，尤其是大肠杆菌。与排水口上游分离出的菌株相比，排水口下游的大肠杆菌和肠杆菌属对氨苄青霉素的耐药性在统计学上显著增加，排水口下游的大肠杆菌对磺胺甲恶唑的耐药性在统计学上也显著增加。
