Nitrate and herbicide loading in two groundwater basins of Illinois' sinkhole plain

Panno, Samuel V.; Kelly, Walton R.

doi:10.1016/j.jhydrol.2003.12.017

Cited by 59 publications

(66 citation statements)

References 22 publications

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“…However, they were similar to the levels of herbicides reported in other karst aquifers Currens, 2002;Panno and Kelly, 2004). Peak concentrations of atrazine and metolachlor in Devils Icebox and Hunters Cave were very similar to those reported for karst aquifers in Kentucky (Currens, 2002) and Illinois (Taylor et al, 2000;Panno and Kelly, 2004) in which the relative proportion of crop land within these recharge areas was similar to or greater than that of Devils Icebox and Hunters Cave.…”

Section: Herbicide Concentrationssupporting

confidence: 79%

“…The concentrations of N and P species observed in this study were generally within the lower range reported for karst aquifers Johnson, 2002;Katz, 2004;Panno and Kelly, 2004). In The Hole cave in West Virginia, Boyer and Pasquarell (1996) reported median NO 3 -N concentrations in the main cave stream and its tributaries ranging from 3.40 to 16.58 mg L 21 .…”

Section: Nutrient Concentrationssupporting

confidence: 78%

“…Contaminants such as nutrients (Hallberg et al, 1985;Boyer and Pasquarell, 1995;Currens, 2002;Panno and Kelly, 2004;Crain, 2006), pesticides Currens, 2002;Panno and Kelly, 2004;Crain, 2006), sediment (Hallberg et al, 1985;Mahler et al, 1999;Crain, 2006), heavy metals (Vesper and White, 2003;Vesper et al, 2001), organic solvents Vesper et al, 2001), petroleum products (Ruhe et al, 1980), fecal bacteria Lerch et al, 2002;Pronk et al, 2006), and endocrine disruptors (Wicks et al, 2004) have been documented in karst aquifers. These contaminants may be harmful to humans exposed through drinking water obtained from karst aquifers and through recreational activities in caves.…”

Section: Introductionmentioning

confidence: 99%

“…It is now well accepted that surface land uses directly impact the water quality of karst aquifers, especially those with discrete, or allogenic, recharge mechanisms (Betson, 1977;Ruhe et al, 1980;Boyer and Pasquarell, 1994;Currens, 2002;Panno and Kelly, 2004;Lerch et al, 2005). In southeastern West Virginia, Boyer and Pasquarell (1994) found strong linear relationships between the percentage of a karst recharge area in agricultural use with the concentrations of nitrate-N, fecal coliforms, and triazine herbicides.…”

Section: Introductionmentioning

confidence: 99%

“…Although a number of studies have measured water quality or quantity in karst aquifers (Hallberg et al, 1985;Boyer and Pasquarell, 1995;Currens, 2002;Wicks et al, 2004;Panno and Kelly, 2004;Dogwiler et al, 2007), few studies to date have intensively monitored both water quantity and quality for a broad range of agricultural contaminants over multiple years. Thus, data on contaminant loads and their seasonality are lacking in the literature.…”

Section: Introductionmentioning

confidence: 99%

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Contaminant Transport in Two Central Missouri Karst Recharge Areas

Lerch¹

2011

JCKS

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Karst watersheds with significant losing streams represent a particularly vulnerable setting for groundwater contamination because of the direct connection to surface water. Because of the existing agricultural land-use and future likelihood of urbanization, two losing-stream karst basins were chosen for intensive monitoring in Boone County, Missouri: Hunters Cave and Devils Icebox. Both caves were formed in Burlington Limestone and have similar recharge areas (33 to 34 km 2 ) and land uses. Year-round monitoring was conducted from April 1999 through March 2002 to characterize the water quality of the main cave streams relative to herbicide, nutrient, and sediment contamination. Water sampling entailed grab samples at regular intervals and runoff-event samples collected using automated sampling equipment. 21 at Hunters Cave. Herbicides or their metabolites were detected in more than 80% of the samples from both cave streams, and herbicide concentrations and areal loss rates were generally similar between the sites. Overall, the greater loads and mass flux of contaminants in the Devils Icebox recharge area compared to Hunters Cave was a result of both greater stream discharge and the occurrence of more cropped fields (94%) on claypan soils with high runoff potential. These claypan soils are known to be especially problematic with respect to surface transport of contaminants. Prevailing land use has significantly degraded the water quality in both recharge areas, but a watershed plan has been developed for the Bonne Femme watershed, which encompasses these two recharge areas. With the baseline data collected in this study, the impact of changing land uses and the implementation of management practices or new ordinances designed to improve water quality can be documented.

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Section: Herbicide Concentrationssupporting

confidence: 79%

Section: Nutrient Concentrationssupporting

confidence: 78%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Contaminant Transport in Two Central Missouri Karst Recharge Areas

Lerch¹

2011

JCKS

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Current awareness

2005

Hydrological Processes

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Impacts of nutrient management and decrease in paddy field area on groundwater nitrate concentration: a case study at the Nasunogahara alluvial fan, Tochigi Prefecture, Japan

Somura

Gotō

Matsui

et al. 2008

Hydrological Processes

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Abstract:In order to help evaluate the trends in the NO 3 -N concentration in groundwater with a view to preventing further degradation in water quality in the future, a distributed groundwater quality model was constructed for the Nasunogahara basin. The best fit for the groundwater table elevations by the flow component of the model was achieved with average mean absolute errors (MAEs) of 0Ð92 m for the calibration period and 0Ð83 m for the validation period. Moreover, the best fit for the NO 3 -N concentration by the water quality component was achieved with average mean relative errors (MREs) of 29Ð8% for the calibration period and 30Ð3% for the validation period. After developing a robust model, various change scenarios were tested; specifically, the effects of effluent load control and a decrease in paddy field area on the NO 3 -N concentration in groundwater were predicted. The most intensively farmed area contributed about 40% of the total effluent load because of livestock farming in the basin. When the effluent load from this area was decreased by 50%, the average NO 3 -N concentrations at sites S1, S2 and S3 were reduced by about 15%; however, the average concentrations at S4 and S5 were reduced by only 1%. Furthermore, when the total effluent load from the concentrated livestock area was removed completely, the average groundwater NO 3 -N concentrations at S1, S2 and S3 were reduced by about 30% as compared with the original calculated results. In contrast, decreasing the area of the paddy fields in the basin did not greatly influence the groundwater NO 3 -N concentration. In the case of a 70% reduction in paddy field area, average NO 3 -N concentrations increased by about 7% at S1, S2 and S3.

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Nitrate and herbicide loading in two groundwater basins of Illinois' sinkhole plain

Cited by 59 publications

References 22 publications

Contaminant Transport in Two Central Missouri Karst Recharge Areas

Contaminant Transport in Two Central Missouri Karst Recharge Areas

Current awareness

Impacts of nutrient management and decrease in paddy field area on groundwater nitrate concentration: a case study at the Nasunogahara alluvial fan, Tochigi Prefecture, Japan

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