Article
Engineering, Civil
Matteo Antelmi, Luca Alberti, Sara Barbieri, Sorab Panday
Summary: This study explored a more efficient computational method for simulating a ground thermal field by using the MODFLOW-USG code and adapting the CLN package. The results showed that the exchanged energy by a BHE increases with groundwater flow velocity according to literature studies. The implementation of a borefield with 7 BHEs in a numerical model was done in a more expeditious and efficient way without any additional computational effort.
JOURNAL OF HYDROLOGY
(2021)
Article
Engineering, Environmental
Xindi C. Hu, Beverly Ge, Bridger J. Ruyle, Jennifer Sun, Elsie M. Sunderland
Summary: This study examines modeling approaches for predicting PFAS concentrations in private wells, finding that a classification random forest model based on nationally available predictors is the most effective and can be readily extended to other regions. Point sources from industries and secondary predictors like groundwater recharge, precipitation, soil sand content, and hydraulic conductivity contributed to accuracy in the models.
ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
(2021)
Article
Geochemistry & Geophysics
Leah M. Santangelo, Craig J. Brown, James B. Shanley, Michael J. Pribil, Danny L. Rutherford
Summary: The study compared lead concentrations in private wellhead and tap water in south-central Massachusetts, finding that most samples had lead concentrations below the monitoring standard, but some samples had higher concentrations; Lead concentrations varied significantly under different environmental conditions, influenced by factors such as water acidity and dissolved oxygen levels.
APPLIED GEOCHEMISTRY
(2022)
Article
Engineering, Environmental
Melissa A. Lombard, Johnni Daniel, Zuha Jeddy, Lauren E. Hay, Joseph D. Ayotte
Summary: The study assesses the potential impact of drought on arsenic exposure from private domestic wells in the conterminous United States. Results show that drought conditions increase the probability of elevated arsenic concentrations in domestic wells, indicating adverse effects on public health.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Environmental
Katie White, Sarah Dickson-Anderson, Anna Majury, Kevin McDermott, Paul Hynds, R. Stephen Brown, Corinne Schuster-Wallace
Summary: Groundwater resources in Ontario, Canada are facing increasing threats from contamination and overuse, with well characteristics, sampling frequencies, and microbiological contamination indicators (specifically E. coli) being important factors. Analysis of a dataset from over 250,000 unique wells revealed that bedrock wells in sedimentary or igneous rock are more susceptible to contamination, shallow wells pose a greater risk to consumers, and well testing practices are influenced by previous test results. Further exploration of these trends is needed to understand the bases for such occurrences.
Article
Public, Environmental & Occupational Health
Riley Mulhern, Megan Stallard, Hania Zanib, Jill Stewart, Emanuele Sozzi, Jacqueline MacDonald Gibson
Summary: The study evaluated under-sink activated carbon block water filters in 17 homes over five months, showing a protective effect against total coliforms in the influent but not against coliphages. The filters may increase specific bacteria in the effluent and potential opportunistic pathogens were detected. Overall, the filters did not pose a significant additional risk for well users beyond existing exposures from undisinfected well water.
INTERNATIONAL JOURNAL OF HYGIENE AND ENVIRONMENTAL HEALTH
(2021)
Article
Environmental Sciences
Mark A. Borchardt, Joel P. Stokdyk, Burney A. Kieke, Maureen A. Muldoon, Susan K. Spencer, Aaron D. Firnstahl, Davina E. Bonness, Randall J. Hunt, Tucker R. Burch
Summary: The study found that total coliforms and nitrate in groundwater were mainly associated with depth-to-bedrock at well sites and nearby agricultural land, not septic systems. Both human wastewater and cattle manure were contributors to well contamination. Nitrate and Escherichia coli were the most frequently detected contaminants.
ENVIRONMENTAL HEALTH PERSPECTIVES
(2021)
Article
Environmental Sciences
Ioan Petculescu, Paul Hynds, R. Stephen Brown, Kevin McDermott, Anna Majury
Summary: The study found that spatiotemporally static NEC thresholds are not appropriate due to seasonal, spatial, and well-specific susceptibility factors associated with different contamination trends. It is recommended to consider these factors in the development of private well water guidelines and to avoid using static thresholds. Furthermore, the authors propose that the NEC:E. coli concentration ratios change in the context of aforementioned factors and may have a role in inferring groundwater contamination mechanisms.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Aida Soraya Shamsuddin, Sharifah Norkhadijah Syed Ismail, Nur Maizatul Idayu Othman, Nor Hafizah Zakaria, Teh Sabariah Abd Manan, Muhamad Ariff Ibrahim, Maisarah Abdul Mutalib
Summary: This study evaluated the nitrate concentrations and health risks of groundwater in Bachok District, Kelantan, Malaysia. The nitrate concentrations in private wells ranged from 0.11 mg/L to 64.01 mg/L, with a mean value of 10.45 mg/L. The health risks of nitrate ingestion and dermal contact were assessed, and it was found that a small percentage of adult males and females had Hazard Quotient values above 1. High nitrate concentrations were mainly found in agricultural areas, indicating the use of nitrogenous fertilizers as the main source of contamination.
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
(2023)
Article
Engineering, Environmental
Melissa A. Lombard, Molly Scannell Bryan, Daniel K. Jones, Catherine Bulka, Paul M. Bradley, Lorraine C. Backer, Michael J. Focazio, Debra T. Silverman, Patricia Toccalino, Maria Argos, Matthew O. Gribble, Joseph D. Ayotte
Summary: Arsenic contamination in groundwater is a widespread issue in the United States, posing a potentially significant but largely hidden public health concern from private well exposure. Boosted regression tree models perform best at identifying areas with low arsenic concentrations in private wells, with the BRT 10 mu g/L model having an overall accuracy of 91.2%. Average annual precipitation and soil geochemistry were identified as influential variables across all models.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Business
Philipp Bagus, Frank Daumann, Florian Follert
Summary: This paper discusses the challenges to science and academic freedom posed by cancel culture and demands for safe spaces using property rights ethics. The author argues that microaggressions should be generally tolerated as a starting point for discussion. Additionally, the author analyzes cancel culture and safe spaces in academia, concluding that they are not justified in public universities.
BUSINESS ETHICS THE ENVIRONMENT & RESPONSIBILITY
(2023)
Article
Geosciences, Multidisciplinary
Brian J. Mailloux, Nicholas A. Procopio, Mark Bakker, Therese Chen, Imtiaz Choudhury, Kazi Matin Ahmed, M. Rajib H. Mozumder, Tyler Ellis, Steve Chillrud, Alexander van Geen
Summary: Geogenic arsenic in drinking water is a global issue, with private well owners needing to test their water regularly to ensure arsenic concentration levels are safe. This study analyzed arsenic data from thousands of private wells in different regions to determine testing frequency based on initial arsenic concentrations. Results suggest that testing should occur annually for wells above a certain concentration threshold to reduce the risk of exceeding safety standards over time.
Article
Energy & Fuels
Liqin Ding, Zhiqiao Wang, Jianguo Lv, Yu Wang, Baolin Liu
Summary: This study presents a new method to analyze the upper limit of safe borehole pressure window (SBPW) in anisotropic shale formations, showing that the change in principal stresses can lead to a new upper limit of SBPW.
JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
(2021)
Article
Computer Science, Interdisciplinary Applications
Scott Eisele, Taha Eghtesad, Keegan Campanelli, Prakhar Agrawal, Aron Laszka, Abhishek Dubey
Summary: This article discusses the development of power grids due to the rapid growth of distributed energy resources, introducing the TRANSAX platform which enables participants to trade in an energy futures market to improve efficiency while ensuring safety and privacy. The platform utilizes a distributed mixing service to anonymize trading activity and enforces constraints to limit trading activity based on safety requirements.
ACM TRANSACTIONS ON CYBER-PHYSICAL SYSTEMS
(2021)
Article
Engineering, Environmental
Mohammed Hossain, Prosun Bhattacharya, Shaun K. Frape, Kazi Matin Ahmed, Gunnar Jacks, M. Aziz Hasan, Mattias von Bromssen, Md Shahiruzzaman, Carl-Magnus Morth
Summary: The study evaluates the use of Intermediate Deep Aquifer (IDA) in Bangladesh as a source of safe drinking water with low manganese concentration. Water chemistry analysis of 243 Intermediate Deep Tubewells (IDTW) showed promising results, with only 3 wells exceeding the arsenic standard and 89% of the wells within or below the former manganese guideline value. This study's findings could be important for other stakeholders and water supply projects with similar hydrogeological settings worldwide.
GROUNDWATER FOR SUSTAINABLE DEVELOPMENT
(2023)
Article
Water Resources
Maitreyee Mukherjee, Namrata Chindarkar, Jenny Gronwall
Article
Environmental Sciences
Jenny Gronwall
ENVIRONMENTAL EARTH SCIENCES
(2016)
Article
Engineering, Environmental
Robert I. McDonald, Ian Douglas, Carmen Revenga, Rebecca Hale, Nancy Grimm, Jenny Groenwall, Balazs Fekete
Editorial Material
Environmental Sciences
Olivier Fouche, Manuela Lasagna, Kerstin Danert
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2019)
Article
Environmental Sciences
A. Healy, K. Upton, S. Capstick, G. Bristow, M. Tijani, A. MacDonald, I Goni, Y. Bukar, L. Whitmarsh, S. Theis, K. Danert, S. Allan
ENVIRONMENTAL RESEARCH LETTERS
(2020)
Editorial Material
Water Resources
Kerstin Danert, Guy Hutton
JOURNAL OF WATER SANITATION AND HYGIENE FOR DEVELOPMENT
(2020)
Article
Environmental Sciences
Rafael Chavez Garcia Silva, Jenny Gronwall, Johannes van der Kwast, Kerstin Danert, Jan Willem Foppen
ENVIRONMENTAL RESEARCH LETTERS
(2020)
Review
Environmental Sciences
Pedro Martinez-Santos, Miguel Martin-Loeches, Silvia Diaz-Alcaide, Kerstin Danert
Review
Environmental Sciences
Kerstin Danert, Dotun Adekile, Jose Gesti Canuto
Article
Environmental Studies
Jenny Gronwall, Anna C. Jonsson
WATER ALTERNATIVES-AN INTERDISCIPLINARY JOURNAL ON WATER POLITICS AND DEVELOPMENT
(2017)
Article
Environmental Studies
Jenny Gronwall
INTERNATIONAL JOURNAL OF URBAN SUSTAINABLE DEVELOPMENT
(2011)
Article
Construction & Building Technology
R. C. McLean, K. Danert, S. J. Morrison, G. H. Galbraith
BUILDING SERVICES ENGINEERING RESEARCH & TECHNOLOGY
(2007)