Article
Environmental Sciences
Fen Yang, Huan Zhang, Shaowen Xie, Chaoyang Wei, Xiao Yang
Summary: Mining activities can lead to severe heavy metal contamination in freshwater ecosystems, posing significant health risks. In this study, the concentration of heavy metals in water, sediments, and aquatic organisms was analyzed in the abandoned Shimen Realgar Mine area. The results revealed high levels of heavy metals in the mine area, primarily due to historical realgar-mining activities. The study also demonstrated species- and tissue-specific bioaccumulation of heavy metals.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Review
Environmental Sciences
Yuanfang Zheng, Bernd Nowack
Summary: Understanding the bioaccumulation of engineered nanomaterials in aquatic organisms is crucial for environmental risk management. This study conducted a meta-analysis of existing literature to comprehensively analyze the bioaccumulation of eight types of nondissolvable engineered nanomaterials in nonmammalian freshwater organisms, and identified meaningful findings.
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2022)
Article
Environmental Sciences
Jacqueline R. Gerson, Rebecca Dorman, Collin Eagles-Smith, Emily S. Bernhardt, David Walters
Summary: Research shows that selenium exposure may reduce MeHg bioaccumulation and toxicity, but does not affect the MeHg concentration in diatoms under high MeHg treatment. Only in high MeHg treatment, the addition of SeMet leads to a decrease in mayfly MeHg concentrations and biomagnification factors. However, Se is toxic to mayflies, causing negative effects such as reduced escape behavior and prolonged metamorphosis time.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Haixiang Cheng, Chenhan Lv, Jianhui Li, Dexin Wu, Xugang Zhan, Ying Song, Nan Zhao, Hangbiao Jin
Summary: This study provides new insights into the bioaccumulation and biomagnification of PFNOBS in marine organisms, enhancing our understanding of its environmental behavior in the marine ecosystem.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Review
Environmental Sciences
Fabio Bernardo, Arminda Alves, Vera Homem
Summary: <br>This paper investigates the bioaccumulation and biomagnification potential of volatile methylsiloxanes (VMSs) in food webs. Due to limited published information, the toxicological effects of VMSs on aquatic biota and human ecology are not well understood. The results show conflicting findings regarding the bioaccumulation of VMSs in food webs, with some studies suggesting bioaccumulation and biomagnification potential, while others suggesting trophic dilution.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Jinpeng Tang, Jinhua Zhang, Linhui Su, Yanyan Jia, Yang Yang
Summary: This study investigated the concentrations and abundance of 11 antibiotics in water, sediment, and various aquatic organisms in the Pearl River, South China. The results showed that the bioaccumulation of antibiotics was positively correlated with their ionized form. Sediment ingestion was found to be a potential route of antibiotic exposure, as indicated by higher bioaccumulation in benthic organisms compared to fish. Additionally, only ciprofloxacin exhibited significant trophic magnification, suggesting the importance of metabolic biotransformation in driving the biomagnification of antibiotics.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Manuel D. Montano, Keira Liu, Tara Sabo-Attwood, P. Lee Ferguson
Summary: This study isolated SWCNTs from estuarine sediments using density gradient ultra-centrifugation, and improved the quantitative detection limit. The separation of fluorescent SWCNTs from metal catalyst particles in the sediment matrix complicates CNT risk assessment, as traditional analysis techniques may misrepresent exposure concentrations and toxicological implications.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Environmental Sciences
Hongmei Hu, Meirong Zhao, Yuanming Guo, Yongdong Zhou, Tiejun Li, Wenbin Zhu, Hangbiao Jin
Summary: This study investigated the concentrations of carbazole and polyhalogenated carbazoles in marine organisms from the East China Sea, finding bioaccumulation potentials and potential risks associated with these contaminants. The findings suggest biomagnification of carbazoles and polyhalogenated carbazoles in the zooplankton-shrimp-fish food web. The toxic equivalents of polyhalogenated carbazoles in organisms from the ECS were also evaluated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Tianhao Du, Anna Bogush, Paul Edwards, Peter Stanley, Ana T. Lombardi, Luiza C. Campos
Summary: This study investigated the role of indigenous algae in removing metals from acid mine drainage and found that metals such as Zn, Cu, and Cd can be adsorbed onto and accumulated in the algae, while Pb and Fe are mainly bioaccumulated in the algae. Indigenous algae can serve as a biogeochemical barrier for metal accumulation and can be used as bioindicators for assessing water pollution.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Evelyn Vetsis, Ioanna Kalantzi, Spiros A. Pergantis, Lambros Kokokiris, Ioannis Karakassis
Summary: A study investigated the concentrations of 27 metals and elements in the tissues of 28 demersal and pelagic marine fish species from the Eastern Mediterranean Sea. The research found that the majority of elements had higher accumulation concentrations in the gills, liver, and scales, while the muscle had the lowest. Pelagic fish tended to accumulate higher concentrations of elements compared to demersal fish.
MARINE POLLUTION BULLETIN
(2021)
Review
Environmental Sciences
Yasmina M. Abd-Elhakim, Mohamed M. Hashem, Khaled Abo-EL-Sooud, Bayan A. Hassan, Khlood M. Elbohi, Adham A. Al-Sagheer
Summary: The widespread usage of nanotechnology and engineered nanomaterials in consumer products has led to increased release of nanoparticles into the environment. This, combined with the presence of heavy metals, results in complex interactions that impact soil and aquatic organisms.
Review
Environmental Sciences
Mindong Ma, Zhixin Wu, Lihui An, Qiujin Xu, Hongwei Wang, Yang Zhang, Yulin Kang
Summary: Microplastics have been found in aquatic ecosystems worldwide, and understanding their bioaccumulation and biomagnification is crucial for ecological risk assessment. However, variations in study methodologies have made it difficult to reach definitive conclusions. By compiling and analyzing available data, it is revealed that microplastics are more abundant in sediments compared to water, mussels, and fish. There is a significant correlation between mussels and sediments, but not between water and mussels or water/sediment and fish. Further research is needed to fully comprehend the biomagnification of microplastics in aquatic environments.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Anna Pouch, Agata Zaborska, Joanna Legezynska, Kajetan Deja, Ksenia Pazdro
Summary: This study found that Arctic benthic organisms have effectively accumulated organochlorine contaminants, but the measured levels are low and do not pose a substantial threat to the biota.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Lulu Mao, Xitao Liu, Zongxing Wang, Baodong Wang, Chunye Lin, Ming Xin, Bo-Tao Zhang, Tingting Wu, Mengchang He, Wei Ouyang
Summary: The study found that Hg concentrations in organisms in Jiaozhou Bay did not exceed threshold limits, with fish > crustaceans > mollusks, and biomagnification of MeHg is higher than IHg in the food chain.
Article
Engineering, Environmental
Ying Zhang, Zhiqian Qv, Jingwen Wang, Yi Yang, Xin Chen, Jingzhen Wang, Yanfeng Zhang, Lingyan Zhu
Summary: Biofilms can serve as suitable media for monitoring pollutants, particularly per- and polyfluoroalkyl substances (PFAS). This study conducted research on PFAS in biofilms, phytoplankton, and freshwater snails collected from Taihu Lake, China. The results showed that biofilms effectively bioaccumulated PFAS from water, and PFAS distinctly biomagnified from the biofilm to freshwater snails. The production of extracellular proteins in biofilms increased with water PFAS concentrations.
Article
Environmental Sciences
Sarath Pullyottum Kavil, Devanita Ghosh, Indira Pasic, Joyanto Routh
TOXICOLOGICAL AND ENVIRONMENTAL CHEMISTRY
(2020)
Article
Environmental Sciences
Chen Luo, Joyanto Routh, Marten Dario, Soumyajit Sarkar, Lezhang Wei, Dinggui Luo, Yu Liu
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Geosciences, Multidisciplinary
Rajendra Bhandari, Joyanto Routh, Subodh Sharma, Rajendra Joshi
Summary: The research indicates significant differences in lipid distribution, sources, composition, and seasonality between small mountain rivers (SMRs) and large mountain rivers (LMRs) in Nepal.
GEOSCIENCE FRONTIERS
(2021)
Review
Geosciences, Multidisciplinary
Chen Luo, Joyanto Routh, Dinggui Luo, Lezhang Wei, Yu Liu
Summary: The Pearl River Delta is facing severe arsenic contamination, mainly due to geological sources and anthropogenic activities leading to high concentrations of arsenic, with mining and wastewater discharge being major contributors. Accumulated arsenic in rice fields poses a health risk to local residents in the area.
GEOSCIENCE LETTERS
(2021)
Article
Geography, Physical
Dennis M. Njagi, Joyanto Routh, Daniel Olago, Kasun Gayantha
Summary: The multi-proxy records from the Kapsabet peat deposit in western Kenya provide insights into late Holocene climate changes and vegetation evolution, with distinct stages of climatic conditions and their impacts revealed through various proxies.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2021)
Article
Geosciences, Multidisciplinary
M. S. Kalpana, Joyanto Routh, Susanne Fietz, Mahjoor A. Lone, Augusto Mangini
Summary: Integrated multiproxy geochemical studies are crucial for reconstructing paleoenvironments over different time scales. This study investigated fatty acid compounds in caves in northeast India to understand their distribution and potential for paleoclimate reconstruction. The results suggest that fatty acids derived from bacterial activity within the cave and surface soils can be used as proxies for past climate changes in speleothems, showing consistent trends with other climate proxies.
FRONTIERS IN EARTH SCIENCE
(2021)
Article
Geosciences, Multidisciplinary
Kasun Gayantha, Patrick Roberts, Joyanto Routh, Oshan Wedage, Florian Ott, Peter Frenzel, Rohana Chandrajith, Gerd Gleixner
Summary: The study reconstructed the climatic and environmental history of the South Asian monsoon over the past 6000 years, finding a decreasing trend of summer monsoon rainfall and an increasing trend of winter monsoon rainfall in Sri Lanka. Several multi-centennial scale arid events were observed in the region records, likely due to the southward migration of the ITCZ during the mid- and late Holocene. The research also showed that short-term arid conditions were not systematically correlated with different modes of climate variables known to have teleconnections with the Indian Ocean monsoon.
FRONTIERS IN EARTH SCIENCE
(2021)
Article
Environmental Sciences
Dennis M. Njagi, Joyanto Routh, Moses Odhiambo, Chen Luo, Laxmi Gayatri Basapuram, Daniel Olago, Val Klump, Curt Stager
Summary: Lake Victoria, a crucial resource for millions of people in East Africa, is being negatively impacted by human activities, resulting in poor water quality. Understanding the changes in the surrounding catchment area is essential for the lake's restoration. This study examines the changes in sediment composition, diatom populations, and land use in the catchment. The results show an increase in nutrient inputs since the 1960s, corresponding to changes in diatom abundance.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Geosciences, Multidisciplinary
Rajendra Bhandari, Joyanto Routh, Prayon Joshi, Samikshya Chhetri, Rajendra Joshi, Subodh Sharma
Summary: The Himalayan rivers play a crucial role in transporting organic carbon and sediments to the ocean. The source and fate of these materials vary in different regions of the Himalayas, with rivers from the Lesser Himalayas and Siwaliks carrying higher levels of organic carbon. The organic matter in Himalayan rivers is mainly in the form of dissolved organic carbon, and rivers from the Lesser Himalayas and Siwaliks transport more organic material during the monsoon season compared to other regions.
Article
Multidisciplinary Sciences
Prayon Joshi, Raize Adhikari, Rajendra Bhandari, Bibek Shrestha, Nischal Shrestha, Samikshya Chhetri, Subodh Sharma, Joyanto Routh
Summary: The rising unpredictability in the food supply chain is related to soil loss and poor agricultural output. The Revised Universal Soil Loss Equation (RUSLE) was applied in the western mid-hills in Nepal to estimate soil loss in areas with steep slopes and fragile geology. The results showed high erosion rates in these areas, indicating the significant role of human activities in enhancing soil erosion and the need for sustainable agriculture practices.
Article
Geochemistry & Geophysics
Andrew Minu, Joyanto Routh, John F. Machiwa
APPLIED GEOCHEMISTRY
(2020)