Search Results - "Nolan, Bernard T"

Estimating the High-Arsenic Domestic-Well Population in the Conterminous United States by Ayotte, Joseph D., Medalie, Laura, Qi, Sharon L., Backer, Lorraine C., Nolan, Bernard T.

“…Arsenic concentrations from 20 450 domestic wells in the U.S. were used to develop a logistic regression model of the probability of having arsenic >10 μg/L…”
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A hybrid machine learning model to predict and visualize nitrate concentration throughout the Central Valley aquifer, California, USA by Ransom, Katherine M., Nolan, Bernard T., A. Traum, Jonathan, Faunt, Claudia C., Bell, Andrew M., Gronberg, Jo Ann M., Wheeler, David C., Z. Rosecrans, Celia, Jurgens, Bryant, Schwarz, Gregory E., Belitz, Kenneth, M. Eberts, Sandra, Kourakos, George, Harter, Thomas

“…Intense demand for water in the Central Valley of California and related increases in groundwater nitrate concentration threaten the sustainability of the…”
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Regional Variability of Nitrate Fluxes in the Unsaturated Zone and Groundwater, Wisconsin, USA by Green, Christopher T., Liao, Lixia, Nolan, Bernard T., Juckem, Paul F., Shope, Christopher L., Tesoriero, Anthony J., Jurgens, Bryant C.

“…Process‐based modeling of regional NO3– fluxes to groundwater is critical for understanding and managing water quality, but the complexity of NO3– reactive…”
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Workgroup Report: Drinking-Water Nitrate and Health-Recent Findings and Research Needs by Ward, Mary H., deKok, Theo M., Levallois, Patrick, Brender, Jean, Gulis, Gabriel, Nolan, Bernard T., VanDerslice, James

“…Human alteration of the nitrogen cycle has resulted in steadily accumulating nitrate in our water resources. The U.S. maximum contaminant level and World…”
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Dietary Nitrate and the Epidemiology of Cardiovascular Disease: Report From a National Heart, Lung, and Blood Institute Workshop by Ahluwalia, Amrita, Gladwin, Mark, Coleman, Gary D., Hord, Norman, Howard, George, Kim‐Shapiro, Daniel B., Lajous, Martin, Larsen, Filip J., Lefer, David J., McClure, Leslie A., Nolan, Bernard T., Pluta, Ryszard, Schechter, Alan, Wang, Chia‐Yih, Ward, Mary H., Harman, Jane L.

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Probability of Nitrate Contamination of Recently Recharged Groundwaters in the Conterminous United States by Nolan, Bernard T, Hitt, Kerie J, Ruddy, Barbara C

“…A new logistic regression (LR) model was used to predict the probability of nitrate contamination exceeding 4 mg/L in predominantly shallow, recently recharged…”
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A statistical learning framework for groundwater nitrate models of the Central Valley, California, USA by Nolan, Bernard T., Fienen, Michael N., Lorenz, David L.

“…•We compared groundwater nitrate models for the Central Valley, California.•The machine learning models were optimized within a statistical learning…”
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Predicting Arsenic in Drinking Water Wells of the Central Valley, California by Ayotte, Joseph D, Nolan, Bernard T, Gronberg, Jo Ann

“…Probabilities of arsenic in groundwater at depths used for domestic and public supply in the Central Valley of California are predicted using weak-learner…”
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Nutrients in Groundwaters of the Conterminous United States, 1992−1995 by Nolan, Bernard T, Stoner, Jeffrey D

“…Results of a national water quality assessment indicate that nitrate is detected in 71% of groundwater samples, more than 13 times as often as ammonia,…”
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Drinking Water Nitrate and Human Health: An Updated Review by Ward, Mary H, Jones, Rena R, Brender, Jean D, de Kok, Theo M, Weyer, Peter J, Nolan, Bernard T, Villanueva, Cristina M, van Breda, Simone G

“…Nitrate levels in our water resources have increased in many areas of the world largely due to applications of inorganic fertilizer and animal manure in…”
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Nitrate in Groundwater of the United States, 1991−2003 by Burow, Karen R, Nolan, Bernard T, Rupert, Michael G, Dubrovsky, Neil M

“…An assessment of nitrate concentrations in groundwater in the United States indicates that concentrations are highest in shallow, oxic groundwater beneath…”
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Modeling groundwater nitrate concentrations in private wells in Iowa by Wheeler, David C., Nolan, Bernard T., Flory, Abigail R., DellaValle, Curt T., Ward, Mary H.

“…Contamination of drinking water by nitrate is a growing problem in many agricultural areas of the country. Ingested nitrate can lead to the endogenous…”
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Vulnerability of Shallow Groundwater and Drinking-Water Wells to Nitrate in the United States by Nolan, Bernard T, Hitt, Kerie J

“…Two nonlinear models were developed at the national scale to (1) predict contamination of shallow ground water (typically < 5 m deep) by nitrate from nonpoint…”
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Modeling groundwater nitrate exposure in private wells of North Carolina for the Agricultural Health Study by Messier, Kyle P., Wheeler, David C., Flory, Abigail R., Jones, Rena R., Patel, Deven, Nolan, Bernard T., Ward, Mary H.

“…Unregulated private wells in the United States are susceptible to many groundwater contaminants. Ingestion of nitrate, the most common anthropogenic private…”
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Evaluating the sources of water to wells: Three techniques for metamodeling of a groundwater flow model by Fienen, Michael N., Nolan, Bernard T., Feinstein, Daniel T.

“…For decision support, the insights and predictive power of numerical process models can be hampered by insufficient expertise and computational resources…”
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Regression model for aquifer vulnerability assessment of nitrate pollution in the Osona region (NE Spain) by Boy-Roura, Mercè, Nolan, Bernard T., Menció, Anna, Mas-Pla, Josep

“…[Display omitted] •A regression model is used to assess aquifer vulnerability to nitrate pollution.•The model addresses the occurrence of distinct aquifer…”
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Modeling Nitrate at Domestic and Public-Supply Well Depths in the Central Valley, California by Nolan, Bernard T, Gronberg, JoAnn M, Faunt, Claudia C, Eberts, Sandra M, Belitz, Ken

“…Aquifer vulnerability models were developed to map groundwater nitrate concentration at domestic and public-supply well depths in the Central Valley,…”
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Assessing the relationship between groundwater nitrate and animal feeding operations in Iowa (USA) by Zirkle, Keith W., Nolan, Bernard T., Jones, Rena R., Weyer, Peter J., Ward, Mary H., Wheeler, David C.

“…Nitrate-nitrogen is a common contaminant of drinking water in many agricultural areas of the United States of America (USA). Ingested nitrate from contaminated…”
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Metamodels to Bridge the Gap Between Modeling and Decision Support by Fienen, Michael N., Nolan, Bernard T., Feinstein, Daniel T., Starn, J. Jeffrey

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Corrigendum to “A hybrid machine learning model to predict and visualize nitrate concentration throughout the Central Valley aquifer, California, USA” [Sci. Total Environ. (2017) 1160–1172] by Ransom, Katherine M., Nolan, Bernard T., Traum, Jonathan A., Faunt, Claudia C., Bell, Andrew M., Gronberg, Jo Ann M., Wheeler, David C., Rosecrans, Celia Z., Jurgens, Bryant, Schwarz, Gregory E., Belitz, Kenneth, Eberts, Sandra M., Kourakos, George, Harter, Thomas

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