Novel statistical analysis illustrates the importance of flow source for extreme variation in dissolved organic carbon in a eutrophic reservoir in the Great Plains DOI Creative Commons
Anthony A. P. Baron, Helen M. Baulch, Ali Nazemi

et al.

Hydrology and earth system sciences, Journal Year: 2025, Volume and Issue: 29(5), P. 1449 - 1468

Published: March 18, 2025

Abstract. Dissolved organic carbon (DOC) trends, predominantly showing long-term increases in concentration, have been observed across many regions of the Northern Hemisphere. Elevated DOC concentrations are a major concern for drinking water treatment plants, owing to effects disinfection byproduct formation, risk bacterial regrowth distribution systems, and cost increases. Using unique 30-year data set encompassing both extreme wet dry conditions eutrophic reservoir Great Plains North America, we investigate changing source-water in-lake chemistry on DOC. We employ novel wavelet coherence analyses explore changes with other environmental variables apply generalized additive model understand predictor–DOC responses. found that concentration was significantly coherent (and lagging behind) flow from large upstream mesotrophic at long (> 18-month) timescales. also (lagging sulfate phase total phosphorus, ammonium, chlorophyll short (≤ timescales record. These accounted 56 % deviance 1990 2019, suggesting water-source nutrient solute effective predictors concentration. Clearly, climate catchment management will influence quality this already water-scarce region. Our results highlight importance shallow reservoirs; periods can exacerbate issues, these be compounded by reducing inflows systems lower decisions address level flood concerns but important impacts treatability.

Language: Английский

Efficient in-situ management of nitrogen and phosphorus release from sediment through modified zeolite and sepiolite coverage DOI
Changming Yang, Xiang Zhang, Jiale Zhang

et al.

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 115536 - 115536

Published: Jan. 1, 2025

Language: Английский

Citations

0
Novel statistical analysis illustrates the importance of flow source for extreme variation in dissolved organic carbon in a eutrophic reservoir in the Great Plains DOI Creative Commons
Anthony A. P. Baron, Helen M. Baulch, Ali Nazemi

et al.

Hydrology and earth system sciences, Journal Year: 2025, Volume and Issue: 29(5), P. 1449 - 1468

Published: March 18, 2025

Abstract. Dissolved organic carbon (DOC) trends, predominantly showing long-term increases in concentration, have been observed across many regions of the Northern Hemisphere. Elevated DOC concentrations are a major concern for drinking water treatment plants, owing to effects disinfection byproduct formation, risk bacterial regrowth distribution systems, and cost increases. Using unique 30-year data set encompassing both extreme wet dry conditions eutrophic reservoir Great Plains North America, we investigate changing source-water in-lake chemistry on DOC. We employ novel wavelet coherence analyses explore changes with other environmental variables apply generalized additive model understand predictor–DOC responses. found that concentration was significantly coherent (and lagging behind) flow from large upstream mesotrophic at long (> 18-month) timescales. also (lagging sulfate phase total phosphorus, ammonium, chlorophyll short (≤ timescales record. These accounted 56 % deviance 1990 2019, suggesting water-source nutrient solute effective predictors concentration. Clearly, climate catchment management will influence quality this already water-scarce region. Our results highlight importance shallow reservoirs; periods can exacerbate issues, these be compounded by reducing inflows systems lower decisions address level flood concerns but important impacts treatability.

Language: Английский

Citations

0