Application of Faecal Sterol Ratios in Sediments and Effluents as Source Tracers

摘要

An analytical method to determine faecal sterols was developed and applied to the analysis of samples including pig manure, sewage treatment plant sludge and combined sewer overflow effluent. Compounds including coprostanol (5β- cholestan-3β-ol), epticprostanol (5β-choletan-3α-ol), cholesterol (cholestan-5- en-3β-ol) and dihydrocholesterol (cholestanol, 5α-cholestan-3β-ol) were quanti- fied in these source samples and their relative ratios calculated to investigate their potential application as source tracers.