Article
Environmental Sciences
Tengda Ding, Liyan Wei, Zhiman Yue, Shiqi Lin, Juying Li
Summary: In this study, the toxicity of silver nanoparticles (AgNPs) on freshwater algae Euglena sp. was investigated, as well as their influence on the toxicity of two commonly detected personal care products, triclosan (TCS) and galaxolide (HHCB). LC-MS targeted metabolomics analysis revealed that AgNPs exerted a stress on the algal defense system under TCS exposure, but promoted the defense system under HHCB exposure. Furthermore, AgNPs mitigated the genetic toxicity of TCS or HHCB in Euglena sp. by accelerating DNA or RNA biosynthesis.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Shunhui Wang, Wenjian Lao, Huizhen Li, Liang Guo, Jing You
Summary: Little is known about the bioaccumulative property of fipronil degradates in sediment, but passive sampler can measure bioavailable concentration (Cfree) that is more closely related to the environmental effect. This study aimed to assess the bioaccumulation potential of fipronil degradate sulfide in oligochaete Lumbriculus variegatus by measuring sediment organic carbon-water partition coefficient (KOC) using polymethyl methacrylate (PMMA) film passive sampler. The time-weighted-average (TWA) concentration of FSI in the sediment was estimated through a bioassay with L. variegatus, and BSAF value (0.581 +/- 0.211 g OC/g lipid) and BCF (3046 +/- 1103 or log 3.48 +/- 0.16 mL/g) were calculated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Mungi Kim, Seongjin Hong, Jihyun Cha, Youngnam Kim, Chang-Eon Lee, Yoonyoung An, Kyung-Hoon Shin
Summary: In this study, the characteristics of environmental multimedia distribution of microcystins (MCs) introduced through freshwater discharge in the estuary dam of the Geum River were investigated. The passive sampling device (POCIS) was found to be effective in monitoring dissolved MCs in the aquatic ecosystem, particularly for calculating time-weighted average concentrations. However, it has limitations in evaluating the contamination status of total MCs, mainly in particulate form.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Jiefeng Li, Yajie Wang, Wenjiao Li, Sartaj Ahmad Bhat, Yongfen Wei, Zhiyi Deng, Xiaodi Hao, Fusheng Li
Summary: This study investigated the accumulation capability of environmental bacteria for radioactive cesium (Cs) in freshwater and coastal sediment. Bacteria from coastal sediment showed higher accumulation capability for Cs than those from freshwater sediment, with a confirmed temperature dependency. The findings have important reference value for understanding and controlling the fate and behavior of Cs associated with bacteria in the water environment.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Xinyu Liu, Mengchen Tu, Shuping Wang, Yizhe Wang, Jing Wang, Yin Hou, Xin Zheng, Zhenguang Yan
Summary: This study aims to derive water quality criteria (WQC) and sediment quality criteria (SQC) for protecting Chinese aquatic organisms from triclosan (TCS) and perform ecological risk assessment. WQC of TCS was derived based on acute and chronic toxicity data using species sensitivity distribution (SSD) models, and SQC was derived through phase-equilibrium partitioning method. The results suggest the existence of certain ecological risks of TCS in Chinese rivers and sediments.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Review
Environmental Sciences
Asa J. Lewis, Xiaoyan Yun, Daniel E. Spooner, Marie J. Kurz, Erica R. McKenzie, Christopher M. Sales
Summary: PFAS are a diverse set of chemicals that accumulate in freshwater aquatic ecosystems, with their bioaccumulation influenced by various factors including compound characteristics and environmental factors. Studies have shown that PFAS concentration, dissolved organic matter, sediment organic matter, and biotransformation of precursor PFAS have significant impacts on bioaccumulation metrics. Future research should provide more detailed information to fill data gaps and improve understanding of PFAS in aquatic ecosystems.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Marine & Freshwater Biology
Ning-Xin Wang, Zheng-Yu Chen, Wen-Qiang Zhou, Wei Zhang
Summary: Arsenic pollution in freshwater is a serious threat to aquatic organisms. This study investigates the role of dissolved organic matter (DOM) in modulating the toxicity and bioaccumulation of inorganic arsenic in algae. The results show that DOM can both suppress and promote arsenic bioaccumulation, depending on the type of algae and the form of arsenic.
AQUATIC TOXICOLOGY
(2022)
Article
Environmental Sciences
Guilherme R. Lotufo, Nicolas L. Melby, James M. Biedenbach, David W. Moore, J. Daniel Farrar
Summary: A method was developed to facilitate self-extraction of worms from detrital material into a column of gravel, resulting in increased recovery rate of test organisms. There were no significant differences in tissue residues and residual sediment between self-extracted animals and manually separated worms with gut purging post exposure to contaminated sediment.
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2021)
Article
Ecology
Eric A. Weingarten, Colin R. Jackson
Summary: As sea level rises, saltmarsh is overtaking coastal freshwater marsh in many areas. However, it is difficult to predict the changes in sediment microbiome caused by saltwater intrusion. This study found that the magnitude of increase in saltwater had a significant impact on sediment prokaryotic composition, while nutrient amendment had no observed effect.
Article
Biochemistry & Molecular Biology
Sabina Llamazares Vegh, Fernanda Biole, Marta Bavio, Pamela Tripodi, Alejandra V. Volpedo
Summary: The study found differences in element accumulation in different organs of four juvenile fish species in the Lower Parana River, with higher elemental content in the muscle of omnivorous fish. Sediment pollution with arsenic and lead was severe, but low elemental sediment pollution was revealed in Espinillo Lake based on combined ecological indexes.
BIOLOGICAL TRACE ELEMENT RESEARCH
(2022)
Article
Environmental Sciences
Di Cui, Peng Zhang, Haipu Li, Zhaoxue Zhang, Yang Song, Zhaoguang Yang
Summary: Dietary uptake is the main pathway for inorganic arsenic to enter benthic fish, and the fish show an adaptive response after chronic exposure, reducing arsenic accumulation and increasing transformation into non-toxic forms. The bioavailability and transformation of arsenic in fish depend on the arsenic species, which is significant for human exposure assessment.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2021)
Article
Environmental Sciences
Isaac Ayodele Ololade, Nurudeen Abiola Oladoja, Oluwaranti Olubunmi Ololade, Toyin Dunsin Saliu, Adenike Bosede Alabi, Samuel Babatunde Obadawo, Mayowa Monday Anifowose
Summary: This study analyzed the levels of polycyclic aromatic hydrocarbons (PAHs) in fish and shellfish samples collected from the Ogbese River in Nigeria, finding that fish had higher concentrations of PAHs compared to shellfish, with bottom dwellers showing more significant accumulation. The findings suggest the need for urgent remediation of the river to safeguard public health.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2021)
Article
Endocrinology & Metabolism
Feng-Jiao Peng, Paul Palazzi, Sakina Mezzache, Nasrine Bourokba, Jeremie Soeur, Brice M. R. Appenzeller
Summary: In this study, a method for analyzing multiple endogenous hormones in human hair was developed and validated. The method allowed the detection of 32 hormones from different chemical classes and established complete reference intervals. Correlations between certain hormone concentrations in hair were found. This method is of significance for better identifying endocrine disorders.
EUROPEAN JOURNAL OF ENDOCRINOLOGY
(2022)
Review
Biodiversity Conservation
Francesco Polazzo, Sabrina K. Roth, Markus Hermann, Annika Mangold-Doring, Andreu Rico, Anna Sobek, Paul J. van den Brink, Michelle C. Jackson
Summary: Freshwater ecosystems are significantly affected by heatwaves and chemicals, yet limited research makes it difficult to draw consistent conclusions. There is a knowledge gap in utilizing multitrophic approaches, hindering the exploration of food web stability. The urgency of integrating extreme events into multiple stressors studies is emphasized.
GLOBAL CHANGE BIOLOGY
(2022)
Article
Environmental Sciences
Dimitri Van de Perre, Dan Li, Kai-Sheng Yao, Hao-Jun Lei, Paul J. Van den Brink, Guang-Guo Ying
Summary: The study evaluated the impact of Cyclophosphamide (CP) on a sub-tropical freshwater ecosystem, showing treatment-related effects on different organisms at varying concentrations of CP, indicating a potential environmental risk at relevant concentrations.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Biodiversity Conservation
Kai-Sheng Yao, Ya-Jing He, Paul J. Van den Brink, Yu-Nv Dai, Yang Yang, Yong-De Cui
Summary: Urban estuaries are severely altered systems that undergo ecological crises and result in irreversible loss of biodiversity. This study investigates the variations of benthic macroinvertebrate communities and biotic indices in a highly urbanized fluvial-estuarine system and examines their responses to environmental alterations. Water parameters have a greater impact on the benthic community composition and diversity than sediment parameters, indicating that anthropogenic activities directly alter the ecological quality of urban fluvial sections.
ECOLOGICAL INDICATORS
(2022)
Article
Environmental Sciences
Anna Huang, Annika Mangold-Doring, Huitong Guan, Marie-Claire Boerwinkel, Dick Belgers, Andreas Focks, Paul J. Van den Brink
Summary: A comprehensive understanding of the interaction between chemical toxicity and temperature is crucial for improving ecological risk assessment under climate change. This study investigated the toxicokinetics and chronic toxicity effects of two insecticides on Gammarus pulex at different temperatures. The results showed that temperature influenced the toxicokinetics and chronic toxicity of both insecticides, with varying degrees of impact. The adverse effects on sublethal endpoints were exacerbated by higher temperatures.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Berhan M. Teklu, Sevil Deniz Yakan, Paul J. Van den Brink
Summary: In this study, the PRIMET Registration_Ethiopia_1.1 model was evaluated to assess the risks of pesticide registration in Ethiopia. The study found that certain active ingredients pose high risks to fish, aquatic invertebrates, soil ecosystem, birds, bees, and humans or other vertebrates if surface water is used as a source of drinking water. Future studies should focus on implementing the risk assessment results to aid the registration process.
Article
Environmental Sciences
Markus Hermann, Edwin T. H. M. Peeters, Paul J. Van den Brink
Summary: The impacts of climate change, such as elevated temperatures and severe weather extremes, are becoming evident on global nature. However, the interaction between stressors like pesticides and warming is not well understood, leading to unpredictable effects on freshwater ecosystems. This study conducted a microcosm experiment to investigate the effects of a fungicide and temperature scenarios on various components of the ecosystem, revealing complex interactions and highlighting the increased pesticide threat under temperature extremes.
ENVIRONMENTAL POLLUTION
(2023)
Article
Engineering, Environmental
Yue-Rui Huang, Si-Si Liu, Jin-Xin Zi, Sheng-Ming Cheng, Jun Li, Guang-Guo Ying, Chang-Er Chen
Summary: This study used an in situ tool, diffusive gradients in thin films (DGT), to investigate the distribution and exchange kinetics of five typical PFAS in four soils. The results showed a nonlinear relationship between PFAS masses in DGT and time, indicating that PFAS were partially supplied by the solid phase in all soils. A dynamic model called DGT-induced fluxes in soils/sediments (DIFS) was used to interpret the results and determine the distribution coefficients for the labile fraction (Kdl), response time (tc), and adsorption/desorption rates (k1 and k-1). The findings suggest that the availability of PFAS in soils is controlled by Kdl, while the release of PFAS from soils may be kinetically constrained, especially for more hydrophilic PFAS.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Xiao-Pei Li, Shu-Qing Qiu, Dong-Qiao Lei, Chen-Si Wang, Lingtian Xie, Guang-Guo Ying, Guo-Yong Huang
Summary: In this study, the ecotoxicological effects of Bisphenol 4-[1-(4-hydroxyphenyl)-3,3,5-trimethylcyclohexyl] phenol (BPTMC) on marine medaka embryos were examined. Low concentrations of BPTMC stimulated certain developmental and behavioral effects, while higher concentrations led to inflammatory response and altered heart rate and swimming velocity. BPTMC also affected the concentrations of estrogen receptors, vitellogenin, and endogenous 17 beta-estradiol, as well as transcriptional levels of estrogen responsive genes in the embryos or/and larvae.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Environmental Sciences
Lara M. Schuijt, Oluwafemi Olusoiji, Asmita Dubey, Pablo Rodriguez-Sanchez, Rima Osman, Paul J. Van den Brink, Sanne J. P. van den Berg
Summary: Fluoxetine, one of the most prescribed antidepressants in the world, is frequently found in surface waters and can disrupt the swimming behavior of fish and invertebrates. However, swimming behavior is highly variable according to experimental conditions, potentially obscuring relevant effects. This study aimed to investigate the swimming and feeding behavior of Gammarus pulex after exposure to fluoxetine and to assess the impact of test duration and location on their swimming behavior.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Multidisciplinary Sciences
Qinghua Zhao, Paul J. Van den Brink, Chi Xu, Shaopeng Wang, Adam T. Clark, Canan Karakoc, George Sugihara, Claire E. Widdicombe, Angus Atkinson, Shin-ichiro S. Matsuzaki, Ryuichiro Shinohara, Shuiqing He, Yingying. X. G. Wang, Frederik De Laender
Summary: Temperature and biodiversity changes can affect the ecological stability of natural food webs, but their joint effects are unclear. This study assessed these effects in 19 planktonic food webs and found that warmer temperatures were associated with lower stability, while biodiversity had inconsistent effects. The responses of stability were linked to the contributions from different trophic groups and the synchrony of species within the food web.
NATURE COMMUNICATIONS
(2023)
Article
Engineering, Environmental
Jin-Ge Zhang, Wenjun Shi, Dong-Dong Ma, Zhi-Jie Lu, Si-Ying Li, Xiao-Bing Long, Guang-Guo Ying
Summary: Imidacloprid (IMI) and thiamethoxam (THM) exhibit negative effects on parental fish, but their intergenerational effects at environmentally relevant concentrations are still unclear. This study investigates the intergenerational effects by exposing F0 zebrafish to IMI and THM and examining the F1 generations. The results show that IMI and THM affect fecundity, gonadal development, sex hormones, and VTG levels in F0 zebrafish, and also influence sex hormones, heart rate, and spontaneous movement rate in F1 generation.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Marine & Freshwater Biology
Edna Cabecinha, Miguel A. Pardal, Joao A. Cabral, Sandra M. Monteiro, Rui Cortes, Maria J. Saavedra, Simone Varandas, Paul van den Brink
Summary: This study investigates a new approach for monitoring and assessing water quality in Mediterranean reservoirs using phytoplankton communities. The results indicate that some reservoirs have been significantly affected by organic pollution and mineral gradients, leading to an imbalance in water quality. Additionally, assessing phytoplankton communities can provide insights into the overall health of the ecosystem.
Article
Engineering, Environmental
Feng-Jiao Peng, Paul Palazzi, Sakina Mezzache, Emilie Adelin, Nasrine Bourokba, Philippe Bastien, Brice M. R. Appenzeller
Summary: Studies have shown that exposure to organic pollutants may alter sex steroid hormone levels in animals and humans. However, research on the mixture effects of these pollutants is limited, and the focus has been mainly on persistent organic pollutants. In this study, hair analysis was used to evaluate the relationship between multiclass organic pollutants and sex steroid hormones in healthy Chinese women. The results showed that each hormone was associated with a mixture of at least 10 examined pollutants.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Markus Hermann, Richard Jansen, Johan van de Glind, Edwin T. H. M. Peeters, Paul J. van den Brink
Summary: Future global climate change will have unpredictable impacts on aquatic ecosystems, with increased risk of species extinction according to models. In addition to environmental changes, anthropogenic stressors such as chemical release may lead to unprecedented interaction effects on ecosystems. Current research mostly focuses on understanding temperature-chemical interaction effects using constant temperature regimes, neglecting environmentally realistic daily temperature variations.