Article
Environmental Sciences
Yajie Chen, Xingang Liu, Shankui Yuan, Fengshou Dong, Jun Xu, Xiaohu Wu, Yongquan Zheng
Summary: A novel passive sampler technique using Oleic acid-embedded cellulose acetate membranes (OECAMs) was developed to evaluate the bioavailability of epoxiconazole (EPO) to earthworms. The study found a significant linear relationship between EPO concentrations in earthworms and OECAMs, with OECAMs reaching equilibrium for EPO sampling within 2 days. Additionally, EPO concentrations in soil porewater, earthworms, and OECAMs were lower in soils with higher organic matter content, showing good potential for OECAMs as a passive sampler for evaluating EPO bioavailability.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Hyo Jin Lee, Yu Lee Jang, Haejin Jeong, Da Yeong Jeong, Gi Beum Kim
Summary: The study found that the PMMA passive sampler can be used to measure the freely dissolved concentrations of PAHs in harbor sediment, reflecting the complex properties of the sediment, such as strong sorption characteristics.
MARINE POLLUTION BULLETIN
(2022)
Review
Environmental Sciences
Florent F. Risacher, Haley Schneider, Ilektra Drygiannaki, Jason Conder, Brent G. Pautler, Andrew W. Jackson
Summary: Sediment porewater dialysis passive samplers, or peepers, are containers that capture chemicals in sediment and allow for analysis of their concentrations. Despite over 45 years of research, there are no standardized methods, hindering routine regulatory decision-making. Improvements can be made by optimizing volume and membrane geometry, addressing uncertainties related to oxygen presence, and developing pre-equilibration sampling methods. Standardization of peeper methods is crucial for measuring porewater concentrations at contaminated sediment sites.
ENVIRONMENTAL POLLUTION
(2023)
Article
Engineering, Environmental
Teng Wang, Zi-Xuan He, Jun Yang, Liang Wu, Xia-Wen Qiu, Lian -Jun Bao, Eddy Y. Zeng
Summary: Riverine transport of organic contaminants from e-waste recycling zones to surrounding areas has been found to be significant, with sediment acting as a source of some contaminants. The horizontal transport of organophosphorus flame retardants (OPFRs) was higher than that of polybrominated diphenyl ethers (PBDEs), and the flux of contaminants varied between upstream and downstream sites.
Article
Engineering, Environmental
Songjing Yan, Mandar Bokare, Upal Ghosh
Summary: This research compared direct porewater extraction and passive sampling for measuring the freely dissolved concentration of hydrophobic pollutants in sediment porewater (C-pw). The results showed that the direct water extraction method accurately quantified C-pw for low to moderately hydrophobic compounds and could assess the toxicity of PAHs. However, it may have detection limit challenges for strongly hydrophobic pollutants. A new extrapolation approach was proposed to address the uncertainty of C-pw measurement for strongly hydrophobic compounds.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Environmental
Songjing Yan, Mandar Bokare, Upal Ghosh
Summary: This research compared direct porewater extraction and passive sampling methods for measuring the concentration of hydrophobic pollutants in sediment. The results showed that direct water extraction provided accurate measurements for low to moderately hydrophobic compounds and could assess toxicity and bioaccumulation. However, detection limit challenges exist for strongly hydrophobic compounds.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Environmental Sciences
Megan L. Gillmore, Gwilym A. Price, Lisa A. Golding, Jenny L. Stauber, Merrin S. Adams, Stuart L. Simpson, Ross E. W. Smith, Dianne F. Jolley
Summary: The geographical shift of nickel mining to small island countries of the Southeast Asia and Melanesia region has increased the environmental risk associated with sediment nickel exposure to benthic estuarine/marine biota. The DGT technique can be used as a complementary tool to assess the bioavailability of nickel in estuarine/marine sediments, especially in areas where there is limited toxicity data available.
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2021)
Article
Environmental Sciences
Arkaprava Mandal, Anwesha Ghosh, Ratul Saha, Punyasloke Bhadury
Summary: The study evaluated benthic foraminifera assemblages, nutrient dynamics of surface and porewater in the Sundarbans mangrove region over a two-year period. The researchers focused on the role of seasonal precipitation, primary production, and standing crop. The abundance of benthic foraminifera was highest in the post-monsoon period, which correlated with increased eddy nutrients and the presence of large diatom cells. The presence of pneumatophores in mangroves was found to increase oxygen availability in the sediment and enhance standing crop.
MARINE POLLUTION BULLETIN
(2023)
Article
Environmental Sciences
Quanlong Li, Junxian Pei, Bingyan Lu, Dongxing Yuan, Kunde Lin
Summary: A new osmotic sampler was employed for time-series sampling of trace metals in water, showing accurate and reliable results consistent with conventional sampling methods.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Kunpeng Zang, Gen Zhang, Xuemei Xu, Nan Zheng, Haoyu Xiong, Haixiang Hong, Kai Jiang, Miao Liang
Summary: Sediment is the main reservoir and source of methane in the ocean, but there is limited data on methane concentration in sediment in China's shelf seas. This study found that methane concentration in sediment was 2 to 3 orders of magnitude higher than that in overlying seawater columns. Surface sediment was identified as an important source of methane, while bottom seawater acted as a sink. Additionally, the study suggests that earthquakes may enhance methane release from sediment to the seawater column.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2022)
Article
Environmental Sciences
Weizong Li, Hao Hu, Fen Liu, Huizhen Li, Jing You
Summary: This study investigated the environmental fate and ecological impacts of fipronil and its transformation products (FIPs) in aquatic environment, and found that dissolved organic carbon (DOC) had a significant influence on the multimedia distribution, bioavailability, and toxicity of FIPs. The study also revealed toxicity of water and sediment samples to two insect species, with fipronil sulfone being more toxic to one species. The significance of DOC association on the fate and ecological risk of hydrophobic insecticides in lotic ecosystems was highlighted.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2023)
Article
Environmental Sciences
Na Yeong Kim, Bommanna G. Loganathan, Gi Beum Kim
Summary: Polycyclic aromatic hydrocarbons (PAHs), known for their recalcitrant properties and biotoxicity, pose serious environmental and health problems. Accurate determination of the bioavailable fraction is crucial for evaluating the toxic potential of these compounds. This study employed different types of passive samplers (LLDPE and LDPE) to determine the freely dissolved concentrations of PAHs using performance reference compounds in three different bodies of water. The results showed that LLDPE is a suitable alternative to LDPE for monitoring PAHs in both short-term and long-term studies.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Takahiro Nishimori, Kyoshiro Hiki, Fabian Christoph Fischer, Satoshi Endo, Hiroshi Yamamoto, Haruna Watanabe
Summary: Understanding the changes in chemical concentrations in sediment toxicity tests is important for interpreting toxicity and accumulation in benthic organisms. A study using chronic spiked-sediment toxicity tests found that the 28-day test provided stable concentrations of a hydrophobic organic chemical, with the freely dissolved concentration in porewater being the most representative indicator of bioaccumulation in the tested organism.
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2022)
Article
Engineering, Environmental
Sung Kyu Maeng, Ji Won Park, Jin Hyung Noh, Se-Yeon Won, Kyung Guen Song
Summary: This study investigated the role of soil mixture blocks (SMBs) in the removal of trace organic contaminants in a multi-soil-layering (MSL) system. The use of zeolite/slag in MSL enhanced the removal of humic substances and building blocks. Results showed that pentoxifylline, caffeine, 17 alpha ethinylestradiol, estrone, and 17 beta-estradiol had high removal efficiencies in the MSL system and zeolite/slag, but lower efficiencies in the sand filter.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Review
Chemistry, Analytical
Katja Schmidt, Sophie A. L. Paul, Eric P. Achterberg
Summary: The geochemical behavior and bioavailability of trace metals are closely linked to their physical fractionation and chemical speciation. The DGT speciation technique allows for the challenging assessment of labile concentrations of various trace metals in ocean waters. This study demonstrates the applicability and sensitivity of DGT passive samplers for monitoring anthropogenic activities and studying natural processes in deep-sea environments.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2022)
Article
Environmental Sciences
Jo Ellen Hinck, Danielle Cleveland, William G. Brumbaugh, Greg Linder, Julia Lankton
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2017)
Article
Environmental Sciences
Ning Wang, Chris D. Ivey, Eric L. Brunson, Danielle Cleveland, Chris G. Ingersoll, William A. Stubblefield, Allison S. Cardwell
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2018)
Article
Environmental Sciences
Danielle Cleveland, Jo Ellen Hinck, Julia S. Lankton
INTEGRATED ENVIRONMENTAL ASSESSMENT AND MANAGEMENT
(2019)
Article
Environmental Sciences
Ning Wang, James L. Kunz, Danielle Cleveland, Jeffery A. Steevens, Isabelle M. Cozzarell
ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
(2019)
Article
Environmental Sciences
Kelsey M. Minter, G. Timothy Jannik, Jo Ellen Hinck, Danielle Cleveland, Walter P. Kubilius, Wendy W. Kuhne
Article
Environmental Sciences
John Besser, Danielle Cleveland, Chris Ivey, Laura Blake
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2019)
Article
Environmental Sciences
John M. Besser, Rebecca Dorman, Christopher D. Ivey, Danielle Cleveland, Jeffery A. Steevens
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
(2020)
Article
Environmental Sciences
Danielle Cleveland, Jo Ellen Hinck, Julia S. Lankton
Summary: The study indicates that biota in the Grand Canyon watershed have taken up uranium and other elements from ore exposure and surface contamination, potentially leading to prolonged exposure risk. However, the specific biological effects of certain mine elements on organisms remain unclear.
Article
Environmental Sciences
Ning Wang, James L. Kunz, Danielle M. Cleveland, Jeffery A. Steevens, Edward J. Hammer, Eric Van Genderen, Adam C. Ryan, Christian E. Schlekat
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2020)
Article
Environmental Sciences
Jo Ellen Hinck, Danielle Cleveland, Bradley E. Sample
Summary: The U.S. Department of the Interior has categorized uranium as a critical mineral for economic and national security. A study on uranium mines in northern Arizona found that uranium is not the key driver of ecological risk, with elements like arsenic, cadmium, copper, and zinc posing more concern for biota.
Article
Environmental Sciences
Christopher A. Mebane, Christopher D. Ivey, Ning Wang, Jeffery A. Steevens, Danielle Cleveland, Michael C. Elias, James R. Justice, Kathryn Gallagher, Robert N. Brent
Summary: The study found that there is a higher risk of delayed mortality for cladocerans and rainbow trout exposed to zinc at different concentrations in the short term. Small invertebrates are more sensitive to zinc than larger fish.
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2021)
Article
Environmental Sciences
John M. Besser, Chris D. Ivey, Jeffery A. Steevens, Danielle Cleveland, David Soucek, Amy Dickinson, Eric J. Van Genderen, Adam C. Ryan, Chris E. Schlekat, Emily Garman, Ellie Middleton, Robert Santore
Summary: The study investigated biotic ligand model (BLM) predictions of nickel and zinc toxicity in natural waters from Illinois and Minnesota, USA. It was found that pH, hardness, and dissolved organic carbon had significant impacts on the toxicity of these metals, with zinc showing greater variation in toxicity across different test waters. Recalibrating the nickel BLM to be more responsive to pH changes was crucial for improving toxicity predictions.
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2021)
Article
Environmental Sciences
Kelly L. Smalling, Emily B. Oja, Danielle M. Cleveland, Jon M. Davenport, Collin Eagles-Smith, Evan H. Campbell Grant, Patrick M. Kleeman, Brian J. Halstead, Kenzi M. Stemp, Brian J. Tornabene, Zachary J. Bunnell, Blake R. Hossack
Summary: This research found differences in metal concentrations in anurans and salamanders, influenced by factors such as body size, developmental stage, and diet. Tissue type was shown to strongly affect perceived metal concentrations, emphasizing the importance of considering these factors in investigations.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
James L. Kunz, Ning Wang, David Martinez, Suzanne Dunn, Danielle Cleveland, Jeffery A. Steevens
Summary: Freshwater mussels are highly sensitive to wastewater effluents and potassium, with sensitivity higher than standard test species. Water quality characteristics can influence potassium toxicity, but to a limited extent.
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2021)
Article
Environmental Sciences
Ning Wang, Rebecca A. A. Dorman, James L. L. Kunz, Danielle Cleveland, Jeffery A. A. Steevens, Suzanne Dunn, A. David Martinez
Summary: This study evaluated the chronic toxicity of potassium ions (tested as KCl) to a commonly tested freshwater mussel and found that water hardness had a limited influence on the chronic toxicity of potassium. The results can be used to establish chronic toxicity thresholds for potassium and derive environmental guideline values to protect freshwater mussels and other organisms.
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2023)