A5054784858- Hydrology and Watershed Management Studies
- Microplastics and Plastic Pollution
- Urban Stormwater Management Solutions
- Groundwater and Isotope Geochemistry
- Smart Materials for Construction
- Water Quality Monitoring Technologies
- Soil and Unsaturated Flow
- Karst Systems and Hydrogeology
- Recycling and Waste Management Techniques
- Soil and Water Nutrient Dynamics
- Landslides and related hazards
- Groundwater flow and contamination studies
- Water Quality and Pollution Assessment
- Water Systems and Optimization
- Atmospheric and Environmental Gas Dynamics
- Geology and Paleoclimatology Research
- Municipal Solid Waste Management
- Wastewater Treatment and Reuse
- Archaeology and Natural History
- Concrete and Cement Materials Research
- Water Quality Monitoring and Analysis
- Aquatic Ecosystems and Phytoplankton Dynamics
- CO2 Sequestration and Geologic Interactions
- Civil and Geotechnical Engineering Research
- Water resources management and optimization
Saint Louis University
2015-2025
UCLouvain Saint-Louis Brussels
2015-2023
Pennsylvania State University
2014-2018
Washington University in St. Louis
2012-2013
University of Washington
2011
The objectives of this study were to accurately model relationships between spectral reflectance and water-quality parameters, including blue-green algae phycocyanin, chlorophyll a, total suspended solids, turbidity, dissolved solids; evaluate feature-level fusion data for modeling; the effectiveness machine learning regression techniques decision-level variable prediction. We introduce application canonical correlation analysis as a method water-based overcome low signal-to-noise ratio...
Anthropogenic microparticles (of synthetic, semisynthetic, or modified natural compositions) are globally pervasive, yet little is known about their distribution and storage in the subsurface despite potential threats to belowground environments. We therefore assessed amounts characteristics water sediment from a cave United States. During flood, samples were collected at 8 sites every ~25 m along passageways. Both sample types evaluated for anthropogenic microparticles, while was...
Pathways for microplastics to aquatic ecosystems include agricultural runoff, urban and treated or untreated wastewater. To better understand the importance of each pathway as a vector into waterbodies mitigation, we sampled stormwater wastewater effluent, downstream in four regions across North America: Sacramento Delta, Mississippi River, Lake Ontario, Chesapeake Bay. The highest concentrations varied by region: runoff Delta effluent Material types were diverse not unique pathways....
Abstract Reservoirs along rivers have the potential to act as nutrient sinks (e.g., denitrification and sedimentation) or sources decomposition redox changes), potentially reducing enhancing loads downstream. This study investigated spatial temporal variability of water lakebed sediment chemistry for an agricultural reservoir, Carlyle Lake (Illinois, U.S.), assess role sediments sources. Samples were collected across reservoir over a 2‐year period. We measured N‐ P‐species in at...
Abstract Projections of future conditions within the critical zone—earthcasts—can be used to understand potential effects changes in climate on processes affecting landscapes. We are developing an approach earthcast how weathering will change using scenarios change. As a first step here, we use earthcasting model aspect‐related soil water chemistry and hillsides well‐studied east‐west trending watershed (Shale Hills, Pennsylvania, USA). completed simulations solute with without effect aspect...
ABSTRACT Eogenetic karst aquifers that maintain high carbonate bedrock permeability can have distinctive aquifer hydrodynamics would be captured in hysteresis behaviour. Analysing the behaviour of these systems a concise and efficient method to provide insight into dominant recharge mechanisms, porosity integration contributing land uses spring discharge. The availability deployable water quality sensors monitor chemistry at temporal resolution across multiple events allows us capture...
Anthropogenic litter in the environment is a globally pervasive contamination issue with harmful impacts on human and ecological health from exposure to both macroscale (≥5 mm) microscale (<5 litter. To assess prevalence, distribution, drivers of plastic nonplastic environment, we assessed anthropogenic abundance characteristics at 10 sites across an urban catchment (Deer Creek near St. Louis, MO) October 2022. Macroscale was evaluated within channel bed, stream water sediment were sampled...
Weathering-induced fracturing (WIF) has been posited to be a mechanism that develops secondary porosity when mineral reaction fronts separate over depth intervals in regolith, and, particular, oxidation (which can promote development through volume expansion) occurs deeper than dissolution grows material removal). If this is true, then the protolith9s capacity reduce O~2~ \[for example, Fe(II) content\] and availability should affect WIF. This study explores hypothesis if ratio of pO~2~...