A5063601271- Pharmaceutical and Antibiotic Environmental Impacts
- Effects and risks of endocrine disrupting chemicals
- Per- and polyfluoroalkyl substances research
- Toxic Organic Pollutants Impact
- Atmospheric chemistry and aerosols
- Soil and Water Nutrient Dynamics
- Environmental Toxicology and Ecotoxicology
- Chemical Analysis and Environmental Impact
- Thermochemical Biomass Conversion Processes
- Fish Ecology and Management Studies
- Constructed Wetlands for Wastewater Treatment
- Zoonotic diseases and public health
- Membrane Separation Technologies
- Pesticide and Herbicide Environmental Studies
- Transboundary Water Resource Management
- Chemistry and Chemical Engineering
- Motivation and Self-Concept in Sports
- Odor and Emission Control Technologies
- Problem and Project Based Learning
- Educational Innovations and Technology
- SARS-CoV-2 detection and testing
- Environmental DNA in Biodiversity Studies
- Animal Behavior and Welfare Studies
- Geography Education and Pedagogy
- Digital literacy in education
Pennsylvania State University
2021-2025
Purdue University West Lafayette
2010-2021
There is increasing concern over the presence of per- and polyfluoroalkyl substances (PFAS) in biosolids, while sales commercially available biosolid-based products used as soil amendments are also increasing. Here, occurrence 17 perfluoroalkyl acids (PFAAs) present 13 products, six organic composts (manure, mushroom, peat, untreated wood), one food yard waste compost were studied. The PFAA concentration ranges observed follows: (9.0–199 μg/kg) > (18.5 other (0.1–1.1 μg/kg). Analysis 2014,...
Acetaminophen (ACT), sulfapyridine (SPY), ibuprofen (IBP) and docusate (DCT) are pharmaceuticals with widespread usage that experience incomplete removal in wastewater treatment systems. While further of these from effluent is desired prior to beneficial reuse, additional technologies often expensive energy intensive. This study evaluated the ability biochar produced cotton gin waste (CG700) walnut shells (WS800) remove four (ACT, SPY, IBP, DCT) aqueous solution. Physico-chemical properties...
Abstract Per‐ and polyfluoroalkyl substances (PFAS) have been used in a variety of consumer industrial products are known to accumulate sewage sludge due sorption their recalcitrant nature. Treatment processes ensure safe high‐quality biosolids by reducing the potential for adverse environmental impacts such as pathogen levels; however, they yet be evaluated impact on fate PFAS. The objective this study was compare PFAS concentrations four commercially available biosolid‐based that received...
Abstract Livestock are a critical part of our food systems, yet their abundance globally has been cited as driver many environmental and human health concerns. Issues such soil, water, air pollution, greenhouse gas emissions, aquifer depletion, antimicrobial resistance genes, zoonotic disease outbreaks have all linked to livestock operations. While studies examined these issues at depth local scales, it difficult complete regional or national scales due the dearth data, hindering pollution...
During the COVID-19 pandemic, wastewater surveillance was leveraged as a powerful tool for monitoring community-scale health. Further, well-known persistence of some pharmaceuticals through treatment plants spurred concerns that increased usage during pandemic would increase concentrations in plant effluent. We collected weekly influent and effluent samples from May 2020 2021 two central Pennsylvania, Penn State Water Reclamation Facility University Area Joint Authority, provide beneficial...
Abstract Per‐ and polyfluoroalkyl substances (PFAS) are a collective name for thousands of synthetic compounds produced to enhance consumer industrial products since the 1940s. They do not easily degrade, some known pose serious ecological human health concerns at trace concentrations (ng L −1 levels). persist in treated wastewater inadvertently introduced into environment when is reused as an irrigation source. The Pennsylvania State University (PSU) has been spray‐irrigating its 2.45 km 2...
The natural manure-borne hormones, 17α-estradiol (17α-E2), 17β-estradiol (17β-E2), and estrone (E1), are routinely detected in surface water near agricultural land wastewater treatment facilities. Once the stream network, hormones may enter sediment bed where they subject to anaerobic conditions. This study focuses on difference transformation rates formation of metabolites from 17α-E2, 17β-E2, E1 (applied at ∼3.66 μmol kg–1 a dry weight basis) under nitrate- sulfate-reducing Sediment...
Abstract In response to the coronavirus pandemic in fall of 2020, we created hybrid–virtual or fully virtual field trips replace in‐person two courses. For an introductory soil science course with 178 students enrolled, used a narrative format supported by 360° ground‐level and drone photos, newspaper articles, videos, websites, landscape diagrams. After reading narratives, took quiz then visited sites (public parks near campus) on their own. advanced pedology seven trip replaced all‐day...
Abstract COVID‐19 restrictions required a transition of our Soil Science and Forest Soils courses to an online format. A pre‐transition survey found that ∼10% students enrolled in lacked high‐speed internet capable streaming videos and/or computers compatible with the applications Learning Management System (LMS). To ensure limited or technology were not left behind, we adopted low‐tech/bandwidth delivery (slides + transcript LMS‐delivered assessments) all lectures recitation activities....
Concerns regarding per- and polyfluoroalkyl substances (PFAS) their precursors have driven increased research into sources, impacts, mitigation strategies, aiming to reduce prevalence in the environment. While much of this has centered on known large sources PFAS (e.g., military bases, airports, fire training sites, some manufacturing facilities), there been interest evaluating inadvertent introduction agroecosystems from beneficial reuse treated domestic wastewater for irrigation land...
<b>Highlights</b> <list list-type=bullet><list-item> Cotton gin waste and walnut shells can be beneficially transformed into alkaline biochars. </list-item><list-item> The resulting biochars have properties supporting effective adsorption of cationic contaminants. exhibit irregular particle morphologies, with cotton biochar maintaining fibrous structures. Results help inform appropriate applications produced from shells. </list-item></list> <b>Abstract.</b> sustainable management...
Abstract The presence of estrogens has been linked to adverse ecological effects in surface waters downstream agricultural and domestic wastewater sources. While laboratory studies suggest that these should not persist because fast degradation rates, elevated concentrations impacted by activities are commonly observed. Using a combination measured data stream‐hyporheic zone (HZ) model applied 100 km reach tile‐drained catchment, we show the HZ can increase persistence estrogens. Field reveal...
<b><sc>Abstract.</sc></b> Per- and polyfluoroalkyl substances (PFAS) are a collective name for growing range of synthetic compounds produced to enhance both consumer industrial products since the 1940s. Due their chemical composition, PFAS do not easily degrade can accumulate within humans environment. As water quality detection technologies advance, being classified as emerging contaminants because risks they pose human health when present at sufficiently high levels in drinking crops....
As analytical capabilities in the early 2000s began to enable detection of chemicals environmental media at increasingly small concentrations, with potential cause adverse human and ecosystem health effects be found nearly ubiquitously worldwide. The types that were targeted for analysis included natural synthetic hormones, veterinary pharmaceuticals, personal care products, novel pesticides, nanoparticles, microplastics, other origin. impacts these on many cases remain unknown....
Acetaminophen (ACT), sulfapyridine (SPY), ibuprofen (IBP) and docusate (DCT) are pharmaceuticals with widespread usage that experience incomplete removal in wastewater treatment systems. While further of these from effluent is desired prior to beneficial reuse, additional technologies often expensive energy intensive. This study evaluated the ability for biochar produced cotton gin waste (CG700) walnut shells (WS800) remove four (ACT, SPY, IBP, DCT) aqueous solution. Physico-chemical...
Abstract Beginning abruptly in the second half of Spring 2020 semester at Purdue University, we modified our teaching approach Introductory Soil Science and Forest Soils courses (AGRY 255/270) with a combined annual enrollment ∼370 students to cope COVID‐19 pandemic. In that semester, went entirely virtual lecture, lab, discussion sessions limited instructor‐to‐student interaction reduce spread COVID‐19. From Fall 2022, re‐instituted many pre‐COVID‐19 practices, some modifications, as...