Cultural meromixis: Effects of road salt on the chemical stratification of an urban kettle lake

Sibert, Ryan J.; Koretsky, Carla M.; Wyman, Davina A.

doi:10.1016/j.chemgeo.2014.12.010

Cited by 52 publications

(50 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Major inputs to the lake are predominantly precipitation and runoff via five storm water drains [25]. Woods Lake is a hypereutrophic isolated kettle lake system in a residential area.…”

Section: Runoff Sediment Collection and Preparationmentioning

confidence: 99%

Influence of fungal low molecular weight organic acids on extraction and speciation of runoff particulate‐associated phosphorus: Implications for nonpoint phosphorus recovery and beneficial reuse

Mondala

Shields

Gaviglio

et al. 2017

Env Prog and Sustain Energy

View full text Add to dashboard Cite

Massive nonpoint particulate‐bound phosphorus (P) losses in runoff and erosion streams cause eutrophication and toxic algal blooms in surface water bodies that receive these streams. On the other hand, runoff particulates can be regarded as a “new” sustainable source of P that can be recovered and reused in agriculture to minimize dependence on mined P sources. In this study, the effects of low molecular weight organic acids (LMWOA) generated by P‐solubilizing fungi (PSF) on bound P extraction efficiency and inorganic P speciation from intercepted runoff sediments discharging into a eutrophic lake were investigated. Runoff sediments were processed using model aqueous LMWOA solutions and cell‐free PSF culture broths containing oxalate and citrate. Up to 61% of total bound P were extracted from runoff sediments using 2:1 and 1:1 (by molarity) oxalate‐citrate mixtures. Equilibrium soluble P levels were reached within 120 min of extraction. Majority of the extracted P originated from potentially bioavailable Fe‐bound P pools whereas some desorbed P appeared to reform as Ca‐P phases when using oxalate‐dominant extractant mixtures. Extractions using cell‐free fungal culture broth demonstrated higher P mobilization rates than using pure aqueous LMWOA solutions, indicating the relevance of other non‐LMWOA‐related chelating and dissolution mechanisms. © 2017 American Institute of Chemical Engineers Environ Prog, 36: 1810–1816, 2017

show abstract

“…Major inputs to the lake are predominantly precipitation and runoff via five storm water drains [25]. Woods Lake is a hypereutrophic isolated kettle lake system in a residential area.…”

Section: Runoff Sediment Collection and Preparationmentioning

confidence: 99%

Influence of fungal low molecular weight organic acids on extraction and speciation of runoff particulate‐associated phosphorus: Implications for nonpoint phosphorus recovery and beneficial reuse

Mondala

Shields

Gaviglio

et al. 2017

Env Prog and Sustain Energy

View full text Add to dashboard Cite

show abstract

“…In extreme cases, salinization can generate density gradients within the lake water column that prevent vertical mixing. Permanent stratification can result in anoxia and internal nutrient and metal resuspension, which decreases lake habitability and water quality (37). All of these ecosystem alterations can significantly affect lake water quality, which has millions of dollars in economic value (38,39).…”

Section: Significancementioning

confidence: 99%

Salting our freshwater lakes

Dugan

Bartlett

Burke

et al. 2017

Proc. Natl. Acad. Sci. U.S.A.

335

262

View full text Add to dashboard Cite

The highest densities of lakes on Earth are in north temperate ecosystems, where increasing urbanization and associated chloride runoff can salinize freshwaters and threaten lake water quality and the many ecosystem services lakes provide. However, the extent to which lake salinity may be changing at broad spatial scales remains unknown, leading us to first identify spatial patterns and then investigate the drivers of these patterns. Significant decadal trends in lake salinization were identified using a dataset of long-term chloride concentrations from 371 North American lakes. Landscape and climate metrics calculated for each site demonstrated that impervious land cover was a strong predictor of chloride trends in Northeast and Midwest North American lakes. As little as 1% impervious land cover surrounding a lake increased the likelihood of long-term salinization. Considering that 27% of large lakes in the United States have >1% impervious land cover around their perimeters, the potential for steady and long-term salinization of these aquatic systems is high. This study predicts that many lakes will exceed the aquatic life threshold criterion for chronic chloride exposure (230 mg L

show abstract

“…Salty inflows that find their way to the deep layers of a lake can form a permanent stratification, no matter whether these inflows enter at the surface of lakes (Lake Nitinat, Canada : Ozretich 1975) Sibert et al (2015) reported meromixis caused by salty wastes entering the lakes and formed by salt used for de-icing of roads; Scharf and Oehms (1992) also reported the same for meromixis in Lake Schalkenmehrener Maar (Germany). High-salinity water can also be produced in the lake itself by enhanced evaporation in a shallow side bay, as in the Dead Sea in the period before 1979 (Nissenbaum 1969).…”

Section: Processes Forming Meromixismentioning

confidence: 96%