2011 journal article
Field Evaluation of Bioretention Indicator Bacteria Sequestration in Wilmington, North Carolina
JOURNAL OF ENVIRONMENTAL ENGINEERING, 137(12), 1103–1113.
author keywords: Storm water; Bioretention; Biofiltration; Indicator bacteria; E. coli; Enterococci
TL;DR:
Two adjacent bioretention areas in Wilmington, North Carolina, were studied and it was found that the systems performed differently for indicator bacteria on the basis of multiple performance evaluation metrics.
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UN Sustainable Development Goal Categories
6. Clean Water and Sanitation
(Web of Science; OpenAlex)
11. Sustainable Cities and Communities
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
Although bioretention has been shown to remove or sequester a wide range of pollutants, relatively little study has been performed to evaluate its ability to sequester indicator bacteria. Two adjacent bioretention areas in Wilmington, North Carolina, were studied. The primary difference in the design of the two systems was soil depth. One bioretention cell was constructed with 25 cm of fill soil (Bioretention-S) and one with 60 cm of fill soil (Bioretention-D). The systems performed differently for indicator bacteria on the basis of multiple performance evaluation metrics. Bioretention-D showed concentration reductions of 70% and 89% for E. coli and enterococci, respectively. Effluent concentrations from Bioretention-D compared well to US EPA target values and other studies in literature. Conversely, Bioretention-S showed concentration “reductions” of -119% and -102% for E. coli and enterococci, respectively. Effluent concentrations from Bioretention-S were substantially higher than USEPA target values an...