Marys watersheds and found that the Cuyahoga River, which has the greatest percent urban land use, had the highest watershed yield and mean concentrations of chloride for any of the HTLP rivers. To that end, we analyzed long-term (1972–2019) chloride data across 10 watersheds obtained as part of the Heidelberg Tributary Loading Program (HTLP) for the Lake Erie, Ohio River, and Grand Lake St. However, few studies on chloride loading to the Laurentian Great Lakes or Ohio rivers have been conducted. Road salt (NaCl, halite) use in areas with substantial snowfall has increased dramatically since the mid-20th century.
However, a strong linear relationship (rĢ = 0.81 p<0.01) between UV absorption and P concentration suggested a major contribution of P to the degradation of stream and lake water quality through algal blooming and associated eutrophication. A significant relationship of WQIndex with UV absorption and P accounted 84 to 90% of the variations in stream and lake water quality degradation. The WQIndex peaked in both streams and lake water with greater water quality degradation in Beaver and Coldwater creek than other creeks. However, DO concentration and UV absorption of water did not change significantly by the influence of streams.
Temporal water samples from the lake and the 6 feeding streams were collected bimonthly from January 2005 to May 2007, processed and measured for temperature, turbidity, pH, electrical conductivity (EĬ), ammonium \(\left( \right)\), and P than other creeks. The study was conducted to evaluate the impact of agriculture and concentrated livestock operations on stream and lake water quality in Grand Lake St. Agricultural activities release variable products into air, soil and water ecosystems.
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