气候变化领域集成服务门户(CCPortal): Fecal indicator bacteria levels at beaches in the Florida Keys after Hurricane Irma

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DOI	10.1016/j.marpolbul.2018.09.036
	Fecal indicator bacteria levels at beaches in the Florida Keys after Hurricane Irma
	Roca M.A.; Brown R.S.; Solo-Gabriele H.M.
发表日期	2019
ISSN	0025326X
起始页码	266
结束页码	273
卷号	138
英文摘要	Hurricanes cause infrastructure failures which can lead to contamination of impacted areas. The objective of the current study was to evaluate whether Hurricane Irma contributed towards sewage contamination of coastal beaches. Through this study we evaluated indicators of fecal pollution (fecal indicator bacteria [FIB], enterococci and fecal coliform) and physico-chemical parameters (salinity, pH, turbidity, and temperature) in coastal waters of the Florida Keys shortly after the hurricane. To augment available county sampling data, two sets of sampling efforts were conducted; one focused on collecting samples spatially throughout the Keys to assess whether areas closer to hurricane landfall were more highly impacted. The second was to collect temporally intensive samples at one location during falling tide to evaluate the hypothesis of groundwater contamination. Samples were analyzed for FIB using a new method called timed appearance of culture signal (TACS), which was subsequently calibrated using traditional membrane filter and chromogenic substrate methods. Results showed that coastal beach waters were characterized by elevated but sporadic levels of fecal indicator bacteria up to two months after the hurricane. Spikes were not correlated with physico-chemical characteristics of the water. Our temporally intensive sampling effort did not support the hypothesis that groundwater was a source of elevated FIB. Competing factors could have played a role in the sporadic nature of the FIB levels after the hurricane. We suggest that beach erosion may have flushed out sediments at beaches closer to the hurricane landfall location thereby improving water quality during dry conditions. We also suggest that during wet conditions a source of FIB could include runoff from debris staging areas. Preemptive beach closures immediately after the hurricane were justified due to the sporadic nature of FIB contamination. © 2018 Elsevier Ltd
英文关键词	Enterococci; Fecal coliform; Fecal indicator bacteria; Hurricane Irma
语种	英语
scopus关键词	Beaches; Coliform bacteria; Contamination; Filtration; Groundwater; Groundwater pollution; Hurricanes; Indicators (chemical); Sewage; Water quality; Chromogenic substrate; Enterococci; Fecal Coliform; Fecal indicator bacteria; Groundwater contamination; Infrastructure failures; Physico - chemical parameters; Physicochemical characteristics; Marine pollution; beach; coastal zone; fecal coliform; hurricane event; marine pollution; runoff; sampling; sewage; water quality; Article; colony forming unit; Enterococcus; environmental parameters; fecal coliform; fecal indicator bacteria; hurricane; nonhuman; pH; salinity; seashore; sewage; temperature; turbidity; analysis; bacterium; calibration; environmental monitoring; feces; Florida; hurricane; isolation and purification; limit of detection; microbiology; procedures; spatiotemporal analysis; swimming; validation study; water pollution; Florida Keys; Florida [United States]; United States; fresh water; sea water; Bacteria; Bathing Beaches; Calibration; Cyclonic Storms; Enterococcus; Environmental Monitoring; Feces; Florida; Fresh Water; Limit of Detection; Salinity; Seawater; Spatio-Temporal Analysis; Water Microbiology; Water Pollution
来源期刊	Marine Pollution Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/150219
作者单位	Department of Civil, Architectural, and Environmental Engineering, University of Miami, Coral Gables, FL, United States; School of Environmental Studies & Department of Chemistry, Queen's University, Kingston, Ontario, Canada; Center for Oceans and Human Health, Rosenstiel School for Marine and Atmospheric Science, Key Biscayne, FL, United States
推荐引用方式 GB/T 7714	Roca M.A.,Brown R.S.,Solo-Gabriele H.M.. Fecal indicator bacteria levels at beaches in the Florida Keys after Hurricane Irma[J],2019,138.
APA	Roca M.A.,Brown R.S.,&Solo-Gabriele H.M..(2019).Fecal indicator bacteria levels at beaches in the Florida Keys after Hurricane Irma.Marine Pollution Bulletin,138.
MLA	Roca M.A.,et al."Fecal indicator bacteria levels at beaches in the Florida Keys after Hurricane Irma".Marine Pollution Bulletin 138(2019).