A Comprehensive Approach in Identifying Sources of Contamination, Understanding Water Quality Perception, and Translating Information through Community Outreach in the Upper Gila Watershed in Clifton, Arizona
作者： Berenise Rivera
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摘要: As of 2010, there are approximately twenty one surface water locations classified as impaired for Escherichia coli (E. coli) contamination in the State Arizona. Of note is San Francisco River (SFR) which currently listed on US EPA 303d list waters due to E. bacteria present at higher concentrations than standards partialand full-body contact. In 2010-2011 samples were collected sites within region monitor and areas known heavy recreational uses. 70 over 1 year, 81% positive universal Bacteroides marker (Allbac). 57 Allbac-positive samples, 68% show contributions human-specific 60% bovine-specific marker. While 28% total assayed showed elevated levels (>235 MPN/100mL), minimal significant correlations between generic
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