The challenges of microbial source tracking at urban beaches for Quantitative Microbial Risk Assessment (QMRA).

摘要: Abstract Urban beaches are frequently impacted from multiple sources of fecal contamination. This along with high beach usage underscores the importance appropriate management that protects swimmer health. The USEPA has enabled use QMRA as a tool for quantifying health risk and setting site-specific water quality objectives. study illustrates challenges associated human non-human source identification how these influence decision whether at typical urban is appropriate. In this study, similar correlated spatial relationship elevated Enterococcus avian-specific markers was observed, suggesting shorebirds primary FIB. However, human-associated were also detected but low concentrations. Ultimately, not conducted because pathogen loading potential could be confidently quantified, having consequences in receiving waters where recreational contact occurs.