Amadu Ayebo

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Sterols are involved in life processes in organisms and are therefore potential biomarkers for assessment of environmental ecosystems. Current data indicate that sterols are persistent in stream sediments, since sterols are not sufficiently soluble in water to be readily detected in water samples. Stream sediment therefore can act as an integrating exposure(More)
Surface-water treatment plants provide water to approximately 67 percent of the residents of Pennsylvania. Industrial activities and agricultural practices significantly contribute to the chemical and microbiological load of surface-water systems. For the study reported here, surface water from three sites along Two Lick Creek in Indiana County in(More)
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