2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
5/25/2021 | 8:30 AM - 10:30 AM | WETLAND SALINIZATION: CHLORIDE AND SULFATE DYNAMICS IN AN URBAN FRESHWATER WETLAND AND ADJACENT STREAM | Virtual Platform
WETLAND SALINIZATION: CHLORIDE AND SULFATE DYNAMICS IN AN URBAN FRESHWATER WETLAND AND ADJACENT STREAM
Freshwater systems in the U.S. are salinizing in areas of human impact as the result of deicing salt application, infrastructure weathering, and impervious surface drainage. Characteristics of freshwater salinization include increased major ion concentrations and variable water chemistry composition. Though freshwater salinization has been well characterized in streams it is less studied in wetlands, which may have unique signatures of salinization as compared to streams within the same watershed. To characterize freshwater salinization in an urban wetland system, we monitored ion concentrations in a constructed wetland complex consisting of three hydrologically connected ponds, and an adjacent first order stream in an urban watershed for one year. Chloride and sulfate mean and maximum concentrations (n=304) were consistently elevated above typical freshwater values at all sampling sites. Chloride and sulfate were significantly correlated in samples from the adjacent stream (r(34)=0.81, p=<0.05) but not samples from in the wetland complex (r(166) = 0.18, p=0.20). Factors related to the decoupling of chloride and sulfate in the wetland complex include instances of extremely high sulfate concentrations, hydrologic events, sample location along hydrologic flow path, and season of sample collection.
- Urban
- Anthropogenic
- Monitoring
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Presenters/Authors
Marie Stofan
(), Kent State University, mstofan1@kent.edu;
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Anne Jefferson
(), Kent State University, ajeffer9@kent.edu;
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Lauren Kinsman-Costello
(), Kent State University, lkinsman@kent.edu;
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