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The Influence Of Road Salt On Seasonal Mixing And Redox Stratification In Three Southwest Michigan Kettle Lakes, Danielle Dupuis
The Influence Of Road Salt On Seasonal Mixing And Redox Stratification In Three Southwest Michigan Kettle Lakes, Danielle Dupuis
Masters Theses
Influxes of saline water from roads treated with deicers can alter the density structure of urban lakes. This can delay or halt turnover events, which may lead to persistent hypolimnetic anoxia in nutrient-rich lakes. In this study, the lake columns of two urban lakes (Woods Lake and Asylum Lake) and one rural lake (North Lake), were sampled once a month from March 2016 to June 2017. Lake column water was analyzed for conductivity, temperature, dissolved oxygen, ferrous iron, manganese, sulfide, calcium, magnesium, sodium, chloride and methane concentrations as a function of depth. All three lakes are eutrophic with anoxic hypolimnia …
Effects Of Road Salt On Asylum Lake Geochemistry, Davina A. Wyman
Effects Of Road Salt On Asylum Lake Geochemistry, Davina A. Wyman
Masters Theses
Several studies indicate that seasonal applications of road deicers can lead to saline runoff entering surface water and groundwater, which can in turn change the chemistry, density, and physical mixing patterns of urban lakes. An investigation at Asylum Lake, an urban lake located near three major roadways, was conducted to determine the degree of road salt contamination in the lake, to determine if salt loading disrupts seasonal mixing patterns, and to determine the extent of redox stratification present due to eutrophic conditions. Samples were collected monthly from the deepest point in Asylum Lake over a 19-month period and analyzed for …