Detecting Water Constituents Unique to Septic Tanks as a Wastewater Source in the Environment by Nontarget Analysis: South Florida's Deering Estate Rehydration Project Case Study
Detecting Water Constituents Unique to Septic Tanks as a Wastewater Source in the Environment by Nontarget Analysis: South Florida's Deering Estate Rehydration Project Case Study
复制标题
通过非目标分析检测作为环境中废水源的化粪池特有的水成分:南佛罗里达州迪林庄园补水项目案例研究
DOI:
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发表时间:
2022
影响因子:
4.1
通讯作者:
P. Gardinali
中科院分区:
文献类型:
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作者:
Kassidy Troxell;Brian Ng;Ingrid M Zamora;P. Gardinali
The present study has generated a workflow based on nontarget analysis (NTA) with Compound Discoverer Ver 3.1 to characterize a set of source‐discriminating compounds identified in water samples from locations in South Florida (USA), particularly those describing a freshwater environment (Everglades based), urban impacted areas (septic tank driven), and coastal (Biscayne Bay) endmembers in and around the Charles Deering Estate property in the Village of Palmetto Bay. Waters from an interconnected managed canal system were assessed to evaluate the influence of localized emissions. Septic tank effluents influence the water in many Southeast Florida environments due to their diminished onsite treatment capacity based on the limestone‐dominated geology and canal systems providing a relatively unobstructed connection pathway. Through a combination of high‐resolution mass spectrometry and statistical analyses, a set of tracers and indicators was determined (azelaic acid, decanophenone, galaxolidone, methyl violet, monoolein, metoprolol, and 1‐stearoylglycerol). Tentatively identified compounds were generally assigned to various categories such as dyes, personal care products, and pharmaceuticals. The NTA Compound Discoverer Ver 3.1 compound data (presented as principal component analysis and Kendrick mass defect plots) showed apparent differences between wastewater‐influenced sites and non–wastewater‐influenced sites along with the ranked “Top10” compounds found at each location. Waters from different locations were also compared using the presence of sucralose to further inform the NTA. The most septic‐influenced site contained 3594 ± 94 ng/L of sucralose with concentrations declining steadily and reaching the lowest concentrations in Biscayne Bay of 122 ± 94 ng/L. The sucralose concentrations provided further evidence of septic influence on this system. Sucralose was determined to be a conservative tracer between the freshwater and coastal sources and complementary to other probable unique tracers of septic tank effluent identified by the NTA. Environ Toxicol Chem 2022;41:1165–1178. © 2022 SETAC
影响因子:
11.4
作者:
Hollender, Juliane;Schymanski, Emma L.;Ferguson, P. Lee
通讯作者:
Ferguson, P. Lee