2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
6/05/2017 | 11:30 AM - 11:45 AM | URBAN STREAM SALINIZATION AND ITS IMPLICATIONS ON NUTRIENTS | 302A
URBAN STREAM SALINIZATION AND ITS IMPLICATIONS ON NUTRIENTS
Many urban watersheds are experiencing long term salinization, due in part to the widespread application of read salts. Human-dominated streams also face episodic salinization as urbanization quickly directs applied road salts to receiving streams via impervious runoff and stormwater infrastructure. We conducted laboratory incubations to investigate the potential effects of road salts on water quality in the Washington-Baltimore metropolitan area (Chesapeake Bay Watershed), and observed that salt additions could rapidly mobilize chemicals from sediments to the water column over a day. We developed an empirical model to predict the mobilization of nutrients from the stream bed to the water column under various salinity scenarios. These laboratory experiments provide mechanistic insights on the potential relationship between salinization, nutrients, and metals –a geochemical coupling that could be incorporated into the design and functioning of tomorrow’s engineered green infrastructure.
- C10 Biogeochemistry
- C27 Landuse and Non-Point source Impacts
- S02 Urban streams, aquatic ecology, and stormwater engineering: How do we encourage integration, opportunities and collaboration in an era of green infrastructure innovation?
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Presenters/Authors
Shahan Haq
(), University of Maryland, shahan66@gmail.com;
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Sujay Kaushal
(), University of Maryland, skaushal@umd.edu;
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