區隔台灣市鎮污水與畜牧廢水污染之分析指標可行性研究

The aim of this research was to study the
possibility of utilizing animal fecal sterols
from humans and animals as the markers to
distinguish fecal pollution in receiving waters
of Taiwan’s river. Fecal sterols are present in
mammalian feces and they are reduced from
cholesterol by the colonic microbacteria.
Sterols are stable in the environment when they
are absorpted to particulate matters in the
sediment and sludge. Thus, after clean up and
extraction, sterols can be qualitated and
quantitated by gas chromatography/mass
spectrometric analysis. These sterols can be the
good indicators of biopollution markers.
Optimization of the cleanup, extraction, and
GC/MS analysis are studied in this study.
Domestic sewage, livestock wastewaters were
investigated thereafter to characterize the
specific types, amount and their ratio of the
sterols, and these spectra were sreved as the
field monitoring reference indicators whether
livestock wastewater are treated or not before
they are dumped into the receiving waters.