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A Diatom Phosphorus Inference Model For 30 Freshwater Lakes In Ne Ohio And Nw Pennsylvania, Kyle C. Scotese
A Diatom Phosphorus Inference Model For 30 Freshwater Lakes In Ne Ohio And Nw Pennsylvania, Kyle C. Scotese
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Nutrient enrichment in the form of anthropogenic phosphorous and nitrogen inputs has occurred in lakes worldwide. In the absence of historical water chemistry data, the extent to which this disturbance has impacted lakes in the Erie/Ontario drift and lake plain and Western Allegheny Plateau ecoregions remains to be determined. The objective of this study was to develop a diatom calibration set through analysis of surface sediments and water chemistry from 30 lakes spanning a phosphorous and nitrogen gradient in the glaciated regions of northeast Ohio and northwest Pennsylvania with an additional lake in New York. No current training set exists …
Hydrogeochemistry And Water Quality Of Echo Hills, Joel M. Kimball
Hydrogeochemistry And Water Quality Of Echo Hills, Joel M. Kimball
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Ground water of the Echo Hills area in Clark County, Ohio was investigated for common water contaminants such as nitrate and coliform bacteria. Thirty-four water samples were collected from locations including private wells, streams and a spring. Nine of those samples were selected for nitrogen isotope analysis. Three locations were chosen for a tracer test. Additionally, well log data, historical water quality data, and GIS data were obtained from the Clark County Health Department in Springfield, Ohio. Results show that local agriculture likely has the greatest impact on ground water quality in Echo Hills especially the north-eastern portion, with local …