- Pharmaceutical and Antibiotic Environmental Impacts
- Toxic Organic Pollutants Impact
- Environmental Toxicology and Ecotoxicology
- Pesticide and Herbicide Environmental Studies
- Fish Ecology and Management Studies
- Amphibian and Reptile Biology
- Water Treatment and Disinfection
- Water Quality and Resources Studies
- Per- and polyfluoroalkyl substances research
- Insect and Pesticide Research
- Species Distribution and Climate Change
- Pesticide Residue Analysis and Safety
- Mercury impact and mitigation studies
- Fecal contamination and water quality
- Reproductive biology and impacts on aquatic species
- Environmental Justice and Health Disparities
- Plant and animal studies
- Wildlife Ecology and Conservation
- Marine animal studies overview
- Water Quality and Pollution Assessment
- Microplastics and Plastic Pollution
- Urban Stormwater Management Solutions
- Heavy Metal Exposure and Toxicity
- Environmental DNA in Biodiversity Studies
- Analytical Chemistry and Chromatography
United States Geological Survey
2016-2025
New Jersey Water Science Center
2015-2024
Government of the United States of America
2024
Georgia Gwinnett College
2020
National Oceanic and Atmospheric Administration
2015
Environmental Protection Agency
2015
New Jersey Department of Environmental Protection
2015
New York State Department of Environmental Conservation
2015
Suffolk County Department of Health Services
2015
Stony Brook University
2015
Fungicides are indispensable to global food security and their use is forecasted intensify. can reach aquatic ecosystems occur in surface water bodies agricultural catchments throughout the entire growing season due frequent, prophylactic application. However, comparison herbicides insecticides, exposure effects of fungicides have received less attention. We provide an overview risk covering fungicide (i.e., environmental fate, modeling, mitigation measures) as well direct indirect on...
Surface water from 38 streams nationwide was assessed using 14 target-organic methods (719 compounds). Designed-bioactive anthropogenic contaminants (biocides, pharmaceuticals) comprised 57% of 406 organics detected at least once. The 10 most-frequently anthropogenic-organics included eight pesticides (desulfinylfipronil, AMPA, chlorpyrifos, dieldrin, metolachlor, atrazine, CIAT, glyphosate) and two pharmaceuticals (caffeine, metformin) with detection frequencies ranging 66–84% all sites....
Widespread disposal of landfill leachate to municipal sewer in the US calls for improved understanding relative organic-chemical contributions WWTP waste stream and associated surface-water discharge receptors environment.
Drinking-water quality is a rising concern in the United States (US), emphasizing need to broadly assess exposures and potential health effects at point-of-use. per- poly-fluoroalkyl substances (PFAS) are national concern, however, there limited information on PFAS residential tapwater point-of-use, especially from private-wells. We conducted reconnaissance compare human unregulated private-well regulated public-supply tapwater. Tapwater 716 locations (269 private-wells; 447 public supply)...
Per- and polyfluoroalkyl substances (PFAS), known colloquially as "forever chemicals," have been associated with adverse human health effects contaminated drinking water supplies across the United States owing to their long-term widespread use. People in may unknowingly be that contains PFAS because of a lack systematic analysis, particularly domestic supplies. We present an extreme gradient-boosting model for predicting occurrence groundwater at depths supply conterminous States. Our...
Documenting trends of stream macroinvertebrate biodiversity is challenging because biomonitoring often has limited spatial, temporal, and taxonomic scopes. We analyzed composition assemblages >500 genera, spanning 27 years, 6131 sites across forested, grassland, urban, agricultural land uses throughout the United States. In this dataset, density declined by 11% richness increased 12.2%, insect 23.3 6.8%, respectively, over years. addition, differences in between urban versus forested...
The environmental ubiquity of tire and road wear particles (TRWP) underscores the need to understand occurrence, persistence, effects tire-related chemicals in aquatic ecosystems. One such chemical is 6PPD-quinone (6PPD-Q), a transformation product antioxidant 6PPD. In urban stormwater runoff 6PPD-Q can exceed acute toxicity thresholds for several salmonid species being implicated significant coho salmon losses Pacific Northwest. There critical prevalence across watersheds identify habitats...
Rapid warming in polar regions is causing large changes to ecosystems, including altering environmentally available mercury (Hg). Although subarctic freshwater systems have simple vertebrate communities, Hg amphibians remains unexplored. We measured total (THg) wetland sediments and methylmercury (MeHg) multiple life-stages (eggs adults) of wood frogs (Rana sylvatica) larval boreal chorus (Pseudacris maculata) from up 25 wetlands near Churchill, Manitoba (Canada), during the summers...
Abstract Pyrethroids are highly toxic to fish at parts per billion or trillion concentrations. Their intended mechanism is prolonged sodium channel opening, but recent studies reveal that pyrethroids such as permethrin and bifenthrin also have endocrine activity. Additionally, metabolites may greater activity than parent compounds. The authors evaluated the in vivo concentration‐dependent ability of induce choriogenin (an estrogen‐responsive protein) Menidia beryllina , a species known...
Abstract Pesticides are receiving increasing attention as potential causes of amphibian declines, acting singly or in combination with other stressors, but limited information is available on the accumulation current‐use pesticides tissue. The authors examined exposure and currently used pond‐breeding frogs ( Pseudacris regilla ) collected from 7 high elevations sites northern California. All sampled located downwind California's highly agricultural Central Valley receive inputs through...
Safe drinking water at the point-of-use (tapwater, TW) is a United States public health priority. Multiple lines of evidence were used to evaluate potential human concerns 482 organics and 19 inorganics in TW from 13 (7 supply, 6 private well self-supply) home 12 (public supply) workplace locations 11 states. Only uranium (61.9 μg L–1, well) exceeded National Primary Drinking Water Regulation maximum contaminant level (MCL: 30 L–1). Lead was detected 23 samples (MCL goal: zero). Seventy-five...
If not managed properly, modern agricultural practices can alter surface and groundwater quality drinking water resources resulting in potential negative effects on aquatic terrestrial ecosystems. Exposure to agriculturally derived contaminant mixtures has the habitat negatively affect fish other organisms. Implementation of conservation focused improving continues increase particularly landscapes throughout United States. The goal this study was determine consequences land management...
Humans are primary drivers of environmental contamination worldwide, including in drinking-water resources. In the United States (US), federal and state agencies regulate monitor public-supply drinking water while private-supply monitoring is rare; current lack directly comparable information on contaminant-mixture exposures risks between private- public-supplies undermines tapwater (TW) consumer decision-making.We compared residential point-of-use TW at Cape Cod, Massachusetts, where both...
In the United States and globally, contaminant exposure in unregulated private-well point-of-use tapwater (TW) is a recognized public-health data gap an obstacle to both risk-management homeowner decision making. To help address lack of on broad exposures TW from hydrologically-vulnerable (alluvial, karst) aquifers agriculturally-intensive landscapes, samples were collected 2018-2019 47 northeast Iowa farms analyzed for 35 inorganics, 437 unique organics, 5 vitro bioassays, 11 microbial...
This is the first field study of its kind to combine radio telemetry, passive samplers, and pesticide accumulation in tissues characterize amphibian exposome as it relates pesticides. Understanding how habitat drives exposure individuals (i.e., their exposome), that individual health critical managing species an agricultural landscape where likely. We followed 72 northern leopard frogs (Lithobates pipiens) two wetlands for insight into when are at high risk exposure. Novel sampling devices...