Article
Engineering, Environmental
Francisca Ribeiro, Denise M. Mitrano, Christian Hacker, Paulina Cherek, Kevin Brigden, Sarit Leat Kaserzon, Kevin Thomas, Tamara S. Galloway
Summary: Nanoplastics can be accumulated and gradually eliminated in oysters, indicating the potential risk of human consumption. Further research is needed to validate the findings and develop practices to reduce human exposure through food consumption.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Review
Environmental Sciences
Zhenling Li, Xiaokang He, Chenghong Feng
Summary: Asian clams (Corbicula fluminea) have been widely used in biomonitoring and environmental applications due to their high enrichment capacity and rapid response to pollutants. This review summarizes the accumulation process of metals and organic pollutants by C. fluminea, and discusses their environmental behavior and applications. The accumulation ability of Cu, Zn, and Mn is significantly higher than other metals, attributed to their high uptake rate constant and low elimination rate constant. However, knowledge gaps exist regarding the accumulation of organic pollutants and nanoparticles, and the physiological mechanisms underlying the accumulation of environmental pollutants by C. fluminea. The review also highlights the potential applications of C. fluminea in wastewater treatment, pest management, and blocking invasive bivalve spread.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Multidisciplinary Sciences
Aude Ratier, Sandrine Charles
Summary: This article discusses the regulatory requirement for bioaccumulation evaluation of chemicals within organisms and the use of toxicokinetic (TK) data to predict internal concentrations. To increase the availability of TK data, researchers have developed an innovative database to support TK modelling.
Article
Environmental Sciences
Marc Lebordais, Juan Manuel Gutierrez-Villagomez, Julien Gigault, Magalie Baudrimont, Valerie S. Langlois
Summary: This study investigated the synergistic effects of nanoplastic combined with arsenic on genetic expression in oysters, showing significant impacts on specific gene expression levels at certain concentrations. Results provide insights into the comparative molecular effects of nanoplastics and arsenic in farmed oysters as well as different species sensitivity.
Article
Environmental Sciences
Dolores Camacho-Munoz, Julia Waack, Andrew D. Turner, Adam M. Lewis, Linda A. Lawton, Christine Edwards
Summary: Freshwater cyanobacteria produce highly toxic secondary metabolites, which can be transported downstream by rivers and waterways into the sea. Estuarine and coastal aquaculture sites exposed to toxic cyanobacteria raise concerns that shellfish may accumulate and transfer cyanotoxins in the food web. This study aims to describe the competitive pattern of uptake and depuration of a wide range of microcystins (MC-LR, MC-LF, MC-LW, MC-LY, [Asp3]-MC-LR/[Dha7]-MC-LR, MC-HiIR) and nodularins (NOD cyclic and linear) within the common blue mussel Mytilus edulis exposed to a combined culture of Microcystis aeruginosa and Nodularia spumigena into the coastal environment. Different distribution profiles of MCs/NODs in the experimental system were observed. The majority of MCs/NODs were present intracellularly which is representative of healthy cyanobacterial cultures, with MC-LR and NOD the most abundant analogues. Higher removal rate was observed for NOD ( approximate to 96%) compared to MCs ( approximate to 50%) from the water phase. Accumulation of toxins in M. edulis was fast, reaching up to 3.4 mu g/g shellfish tissue four days after the end of the 3-days exposure period, with NOD (1.72 mu g/g) and MC-LR (0.74 mu g/g) as the dominant toxins, followed by MC-LF (0.35 mu g/g) and MC-LW (0.31 mu g/g). Following the end of the exposure period depuration was incomplete after 27 days (0.49 mu g/g of MCs/NODs). MCs/NODs were also present in faecal material and extrapallial fluid after 24 h of exposure with MCs the main contributors to the total cyanotoxin load in faecal material and NOD in the extrapallial fluid. Maximum concentration of MCs/NODs accumulated in a typical portion of mussels (20 mussels, approximate to 4 g each) was beyond greater the acute, seasonal and lifetime tolerable daily intake. Even after 27 days of depuration, consuming mussels harvested during even short term harmful algae blooms in close proximity to shellfish beds might carry a high health risk, highlighting the need for testing.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Matthew D. Taylor, Daniel D. Johnson, Sandra Nilsson, Chun-Yin Lin, Jennifer Braeunig, Jochen Mueller, Karl C. Bowles
Summary: Portunid crabs can accumulate high concentrations of PFASs, with depuration half-lives as high as 40 days. A study on Giant Mud Crab found evidence for depuration of PFOS, PFHxS, and PFOA, with substantial variability in data. These results have implications for assessing and minimizing exposure risk in seafood species.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
G. Hariharan, R. Purvaja, I Anandavelu, R. S. Robin, R. Ramesh
Summary: This study examines the impacts of environmentally weathered polyethylene (wPE) microplastics on the ingestion, growth, and enzymatic responses in Penaeus vannamei. The results show that wPE exposure inhibits the growth of P. vannamei and affects their enzymatic responses. The duration of exposure has a greater influence on wPE ingestion than the concentration.
Article
Environmental Sciences
N. Ariza-Castro, F. Courant, T. Dumas, B. Marion, H. Fenet, E. Gomez
Summary: Exposure of aquatic organisms to antidepressants is well documented, but little is known about how wild organisms cope with these pharmaceutical products. This study aimed to enhance knowledge on the metabolism of venlafaxine in Mytilus galloprovincialis, revealing four identified metabolites and highlighting hydroxyvenlafaxine as the predominant metabolite.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Adelaide Lerebours, Marguerite Bathie, Justine Receveur, Ronan Jezequel, Emmanuel Dubillot, Pascal Brunello, Pierrick Barbier, Stephane Le Floch, Helene Thomas
Summary: The pilot study aimed to provide an overview of organic contaminant concentration levels in the littoral ecosystems of the Pertuis seas. Oysters accumulated a higher number of pesticides than blue mussels, but the study found that the POPs detected in water or sediments were not ultimately found accumulated in bivalves.
MARINE POLLUTION BULLETIN
(2021)
Article
Environmental Sciences
Theogene Habumugisha, Zixing Zhang, Cheng Fang, Changzhou Yan, Xian Zhang
Summary: Plastic nanoparticles formed from daily use and waste plastics pose a potential health and environmental risk. This study quantitatively investigated the accumulation and depuration of polystyrene nanoplastics (PSNs) in zebrafish tissues after aquatic exposure. It was found that the bioaccumulation of PSNs in zebrafish was concentration, tissue, and time dependent, with the highest accumulation in the intestine. After 16 days of depuration, PSNs were still present in the tissues, particularly in the brain.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Hanen Smii, Carla Leite, Joao Pinto, Bruno Henriques, Hamouda Beyrem, Amadeu M. V. M. Soares, Mohamed Dellali, Eduarda Pereira, Rosa Freitas
Summary: Due to the wide use of Titanium (Ti) compounds, Ti and Ti nanoparticles (nTi) are released into aquatic environments, causing varying degrees of toxicity on aquatic fauna. Green macroalgae Ulva lactuca is capable of accumulating trace elements and has been extensively studied as a universal sorbent. This study aimed to evaluate the toxicity of Ti and nTi in bivalves and the remediation properties of U. lactuca. Results showed cellular damage in bivalves exposed to Ti and nTi, and the presence of U. lactuca limited the damage, possibly due to changes in water quality induced by the algae.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Huan Liu, Xiuhui Tian, Lisheng Jiang, Dianfeng Han, Shunxin Hu, Yanmei Cui, Fang Jiang, Yongchun Liu, Yingjiang Xu, Huanjun Li
Summary: This study used stable isotope labeling to investigate the contributions of different sources of cadmium to scallop tissues. The accumulation pattern of cadmium in tissues during growth was significant in the viscera and gills. Additionally, a multi-omics approach revealed a network of oxidative stress-induced toxicity mechanisms of cadmium in scallops. Differential gene and protein expression related to metal ion binding, oxidative stress, energy metabolism, and apoptosis were identified.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Mahmood M. S. Abdullah, Hamad A. Al-Lohedan
Summary: This study focused on the synthesis of amino-functionalized magnetic nanoparticles using sodium alginate as a starting material, which demonstrated high efficiency in oil spill collection even at low ratios of nanoparticles to crude oil.
Article
Chemistry, Multidisciplinary
Fatima C. F. Santos, Rudo A. Verweij, Amadeu M. V. M. Soares, Janeck J. Scott-Fordsmand, Cornelis A. M. van Gestel, Monica J. B. Amorim
Summary: This study assessed the multigenerational effects of silver nanomaterials (Ag NM300K) and silver salt (AgNO3) on soil invertebrates. The results showed that both forms of silver caused a decrease in reproduction, and silver uptake decreased over time. After reaching a certain concentration, detoxification mechanisms seemed to be activated, leading to a decrease in reproductive output. Transfer to clean soil allowed for complete elimination of silver from the animals.
NANOSCALE ADVANCES
(2023)
Article
Biotechnology & Applied Microbiology
S. Chinnadurai, K. Elavarasan, V. Geethalakshmi, V. Kripa, K. S. Mohamed
Summary: The effect of depuration on naturally contaminated tropical bivalve molluscs was investigated in this study. The elimination of fecal indicators and bacterial pathogens was influenced by temperature, salinity, and body-size of the animals. The research suggests that using a static depuration system at room temperature, a salinity range of 25-35 ps mu, and medium-sized bivalves is the optimum condition for producing microbiologically safe bivalves for live consumption within 36 hours.
Article
Environmental Sciences
V. F. Taylor, K. L. Buckman, E. A. Seelen, N. M. Mazrui, P. H. Balcom, R. P. Mason, C. Y. Chen
ENVIRONMENTAL POLLUTION
(2019)
Article
Environmental Sciences
Wesley W. Huffman, Hans G. Dam, Robert P. Mason, Zofia Baumann
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Engineering, Environmental
Maodian Liu, Yipeng He, Zofia Baumann, Qianru Zhang, Xin Jing, Robert P. Mason, Han Xie, Huizhong Shen, Long Chen, Wei Zhang, Qianggong Zhang, Xuejun Wang
Article
Environmental Sciences
Yipeng He, Robert P. Mason
Summary: The study compared RGHg concentrations measured by the KCl-coated denuder and cation exchange membranes (CEM) during a Pacific cruise, revealing that CEM measurements were, on average, 5 times higher than those by the denuder. Different spatial and temporal patterns were observed with the two measurement devices. The study also found evidence of RGHg formation associated with ozone depletion and a diurnal cycle in RGHg concentration in low latitude tropical regions due to photochemical reactions.
ATMOSPHERIC ENVIRONMENT
(2021)
Article
Environmental Sciences
Kate L. Buckman, Robert P. Mason, Emily Seelen, Vivien F. Taylor, Prentiss H. Balcom, Jonathan Chipman, Celia Y. Chen
Summary: This study used unsupervised machine learning to analyze the relationship between mercury bioaccumulation in fish and biogeochemical conditions and landscape, revealing that different fish species respond differently to various forms of mercury. Additionally, dissolved MeHg was found to have a significant impact on mercury bioaccumulation in fish.
ENVIRONMENTAL RESEARCH
(2021)
Article
Engineering, Environmental
Emily A. Seelen, Celia Y. Chen, Prentiss H. Balcom, Kate L. Buckman, Vivien F. Taylor, Robert P. Mason
Summary: This study focused on evaluating the impact of point source contamination on water column mercury concentrations and source dynamics in estuaries in the Northeast United States. Findings indicated that contaminated sites have strong internal recycling of mercury, leading to elevated concentrations in water columns, while uncontaminated sites showed strong connections to the local watershed. Furthermore, in-situ methylation of dissolved water column mercury appeared to dominate the methylmercury source pathway.
Article
Environmental Sciences
Kathleen J. Gosnell, Hans G. Dam, Robert P. Mason
Summary: The results of the experiments demonstrate that mercury and methylmercury in the ocean accumulate in marine wildlife through the food chain, with prey size affecting their uptake and transfer. It is also suggested that CH3Hg can more easily enter algae at low concentrations.
MARINE ENVIRONMENTAL RESEARCH
(2021)
Article
Multidisciplinary Sciences
Paul J. Blanchfield, John W. M. Rudd, Lee E. Hrenchuk, Marc Amyot, Christopher L. Babiarz, Ken G. Beaty, R. A. Drew Bodaly, Brian A. Branfireun, Cynthia C. Gilmour, Jennifer A. Graydon, Britt D. Hall, Reed C. Harris, Andrew Heyes, Holger Hintelmann, James P. Hurley, Carol A. Kelly, David P. Krabbenhoft, Steve E. Lindberg, Robert P. Mason, Michael J. Paterson, Cheryl L. Podemski, Ken A. Sandilands, George R. Southworth, Vincent L. St Louis, Lori S. Tate, Michael T. Tate
Summary: The 15-year experiment conducted to reduce fish MeHg concentrations by decreasing Hg additions to a boreal lake and its watershed demonstrated that any reduction in Hg loadings to lakes, whether from direct deposition or runoff, will have immediate benefits to fish consumers.
Article
Chemistry, Multidisciplinary
Sofi Jonsson, Michelle G. Nerentorp Mastromonaco, Katarina Gardfeldt, Robert P. Mason
Summary: This study explored the presence and cycling of mercury and its methylated forms in the central Arctic Ocean. The results showed that mercury was enriched in surface waters, while methylated mercury forms were low at the surface and enriched at a certain water depth. Ice may act as a source of mercury to surface waters but not to the methylated mercury forms.
Article
Environmental Sciences
R. P. Mason, M. Coulibaly, G. Hansen, H. Inman, P. K. Myer, K. M. Yao
Summary: Artisanal and small-scale gold mining, energy production, and other industrial inputs are a major source of anthropogenic mercury in aquatic environments. This study focuses on the understudied estuarine waters of Cote d'Ivoire and suggests that the local population may be exposed to unsafe levels of methylmercury through fish consumption. The findings highlight the importance of addressing local sources of mercury contamination and the transportation of mercury used in gold mining activities.
Article
Engineering, Environmental
Yipeng He, Xiangming Shi, Wesley W. Huffman, Carl H. Lamborg, Robert P. Mason
Summary: The significance of dimethylmercury (DMHg) to the global mercury (Hg) ocean biogeochemical cycle is still unclear due to a lack of detailed measurements. Researchers developed an automatic analyzer to measure DMHg in surface seawater, which offers advantages such as simplicity, high precision, and long-term stability. The successful field measurements in coastal waters showed that the concentration of DMHg is lower compared to other ecosystems.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Environmental
Maodian Liu, Robert P. Mason, Penny Vlahos, Michael M. Whitney, Qianru Zhang, Joseph K. Warren, Xuejun Wang, Zofia Baumann
Summary: This study investigated the seasonal and tidal variations of mercury and methylmercury in Long Island Sound, revealing that the riverine input of organic matter and inorganic mercury stimulates methylmercury production, and tidal cycles further contribute to the remobilization of deposited mercury. The findings highlight the significance of water column biogeochemical processes in regulating methylmercury levels in temperate estuarine ecosystems.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Multidisciplinary Sciences
Emily Seelen, Van Liem-Nguyen, Urban Wunsch, Zofia Baumann, Robert Mason, Ulf Skyllberg, Erik Bjorn
Summary: This study demonstrates that the concentration of thiol compounds associated with dissolved organic matter controls the bioavailability of methylmercury in aquatic systems.
NATURE COMMUNICATIONS
(2023)
Review
Environmental Sciences
Ashu Dastoor, Helene Angot, Johannes Bieser, Jesper H. Christensen, Thomas A. Douglas, Lars-Eric Heimburger-Boavida, Martin Jiskra, Robert P. Mason, David S. McLagan, Daniel Obrist, Peter M. Outridge, Mariia Petrova, Andrei Ryjkov, Kyra A. St Pierre, Amina T. Schartup, Anne L. Soerensen, Kenjiro Toyota, Oleg Travnikov, Simon J. Wilson, Christian Zdanowicz
Summary: This article provides a comprehensive assessment of the present-day total mercury mass balance in the Arctic. The majority of mercury is transported to the Arctic via air and ocean transport, and the deposition mainly occurs in terrestrial ecosystems, particularly in soils. Rivers and coastal erosion transfer a significant amount of terrestrial mercury to the Arctic Ocean, in approximate balance with net terrestrial mercury deposition. The revised Arctic Ocean mercury mass balance suggests that the deposition to the ocean and mercury burial in inner-shelf sediments are underestimated, calling for the need for seasonal observations.
NATURE REVIEWS EARTH & ENVIRONMENT
(2022)
Article
Environmental Sciences
Kayla Anatone, Zofia Baumann, Robert P. Mason, Gunnar Hansen, Barry Chernoff