Article
Environmental Sciences
Riffat Parveen, Yasir Karim Khan, Muhammad Toqeer, Munir H. Shah
Summary: This study investigated the chemical fractionation pattern of selected metals in soil collected from roadside, urban, and suburban environments. It found that different metals exhibited varying levels of mobility and availability, with some showing low risk while others showed medium to high risk. Additionally, there was evidence of anthropogenic contamination of metals in the soil.
ENVIRONMENTAL EARTH SCIENCES
(2021)
Article
Environmental Sciences
Ndema Mbongue Jean-Lavenir, Tume Noela Kiki, Lemnyuy Prosper Yiika, Godlove Muh Ndi
Summary: The study aims to analyze the geochemical distributions of elements in stream sediment in the Pouma area of Cameroon to assess trace metal contamination, sources of pollution, and ecological risks. Samples were analyzed by inductively coupled plasma-mass spectrometer. The results show high contents of Fe2O3, Mn, Th, Zr, Sr, Au, V, Y, rare earth elements, and depletion of other elements in stream sediments. Factor analysis reveals five factors explaining 88.74% of cumulative variance. Assessment of pollution load index, enrichment factor, integrated nemerow pollution load index, and potential ecological risk index indicates sediment contamination and metal pollution, mainly from mafic lithology, quarrying, domestic activities, and agricultural practices. The findings of this study provide valuable insights for sediment management in the area.
WATER AIR AND SOIL POLLUTION
(2023)
Article
Environmental Sciences
Dilip Kumar Jha, G. Dharani, Pankaj Verma, Krupa Ratnam, R. Sendhil Kumar, S. Rajaguru
Summary: The study found that sediment contamination by trace metals due to urban and industrial development initiatives at Puducherry and Diu has led to considerable risk, with Cd contamination being particularly high in Diu compared to Puducherry. The results are essential for establishing a reference for better comparison and management of tropical environments.
MARINE POLLUTION BULLETIN
(2021)
Article
Oceanography
Albert Palanques, Jorge Guillen, Pere Puig, Ruth Duran
Summary: The effects of massive dumping of dredged material during and after the Barcelona port expansion were investigated. The dumping resulted in frequent high suspended sediment concentration peaks, increased water velocities, and shock waves. The dumped sediment formed a thin laminated deposit extending beyond the dumpsite. Unconsolidated sediment left after dumping was resuspended, leading to elevated suspended sediment concentrations in the environment for several days.
OCEAN & COASTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Yang Zhang, Fengqin Chang, Donglin Li, Lizeng Duan, Xiaonan Zhang, Qi Liu, Haoyu Li, Youhong Gao, Fengwen Liu, Hucai Zhang
Summary: This study developed a multiple normalization procedure combined with principal component analysis to assess the influence of data treatment and environmental factors on the traceability of trace metals in surface sediments of Lake Xingyun, China. The results showed that mathematical normalization of data had a significant effect on analysis outputs and interpretation, and granulometric and geochemical normalization procedures could identify the influence of grain size and other environmental impact on trace metal contents. Co-occurrence network analysis confirmed that grain size, salinity, and organic matter content were the primary factors controlling the spatial variability in the type and concentrations of trace metals.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Meng-Chun Wu, Hans-Uwe Dahms, Chun-Hung Liu, Chi-Ying Hsieh, Chen-Ci Wang, Zong-Yo Ho
Summary: This study developed a sediment toxicity test using a native amphipod strain, Ptilohyale barbicornis, to evaluate sediments from 10 estuarine stations in western Taiwan for trace metals and PAHs. The test demonstrated the sensitivity of P. barbicornis as a toxicity test species and its ability to assess the comprehensive biological effects and ecological risks of various estuarine sediment pollutants. The study also observed a significant negative correlation between growth effects and PAHs concentrations in contaminated sediments, as well as inhibited growth compared to controls in chronic toxicity testing.
MARINE POLLUTION BULLETIN
(2021)
Article
Environmental Sciences
T. E. Frankel, E. Tyler, C. Willmore, B. K. Odhiambo, L. Giancarlo
Summary: Coal ash landfills may have potential impacts on aquatic ecosystems, with neurotoxic constituents such as cadmium, selenium, mercury, lead, and arsenic entering the environment and posing risks to wildlife. The study found higher concentrations of trace elements in areas affected by the landfill, reduced species diversity, and increased concentrations of trace metals in banded killifish muscle tissue.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
Andrew J. Guerin, Karen A. Kidd, Marie-Josee Maltais, Angella Mercer, Heather L. Hunt
Summary: Infaunal invertebrate communities in coastal marine sediments are impacted by human activities, with a focus on harbours and estuaries. However, there is limited research on highly energetic tidal estuaries. This study collected samples from reference sites in Saint John Harbour over a decade to investigate the influence of physical and chemical variables on infaunal invertebrate communities and sediment properties.
ESTUARIES AND COASTS
(2023)
Article
Environmental Sciences
Mohamed Ben -Haddad, Mohamed Rida Abelouah, Imane Lamine, Sara Hajji, Slimani Noureddine, Nelson Rangel-Buitrago, Aicha Ait Alla
Summary: This study examines the contamination, accumulation, and ecological risk of five trace metals in sediments of an urbanized beach in Morocco. The results show that, overall, the sediments were within the acceptable limits, indicating low contamination and low ecological risk. However, there was an increase in Cd levels in 2019 due to anthropogenic activities, leading to moderate pollution and moderate ecological risk. It is recommended to reduce avoidable human activities to mitigate metal pollution in the study area.
MARINE POLLUTION BULLETIN
(2023)
Article
Geochemistry & Geophysics
Shih-Han Huang, Tien-Chin Chang, Hui-Chen Chien, Zih-Sin Wang, Yen-Chen Chang, Ying-Lin Wang, Hsing-Cheng Hsi
Summary: This study conducted the first comprehensive investigation of heavy metals in irrigation canal sediments in Taiwan in 2019. It found that Cu was the main heavy metal in polluted agricultural land, with the most contaminated sites located in Taoyuan City and Changhua County. The distribution of heavy metals in polluted irrigation water sources corresponded to possible pollution sources upstream.
Article
Environmental Sciences
Maziar Mohammadi, Markus Egli, Ataollah Kavian, Ivan Lizaga
Summary: Unsustainable human activities have disrupted the natural cycle of trace elements, causing the accumulation of chemical pollutants and making it challenging to determine their sources. A novel approach combining fingerprinting techniques, geochemical data, and statistical models was used to identify and quantify the contribution of trace elements from rivers to soils. Results showed that both upland sub-watersheds and land use play important roles in transferring trace elements to the study area.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Lorena S. Miranda, Kaveh Deilami, Godwin A. Ayoko, Prasanna Egodawatta, Ashantha Goonetilleke
Summary: This study found that the influence of land use and configuration on metal partitioning is independent of scale, and population density increases metal bioavailability at the riparian scale. Agricultural lands discharge the highest fractions of dissolved metals at both spatial scales.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Maria Doufexi, Dimitra E. Gamvroula, Dimitrios E. Alexakis
Summary: This study aimed to evaluate the element content in stream sediments in West Attica, Greece and investigate the relationship between elements in sediments and wildfire ash. The results showed moderate contamination in stream sediments, which may affect the chemistry of stream water.
Article
Geochemistry & Geophysics
Kai Nils Nitzsche, Toshihiro Yoshimura, Naoto F. Ishikawa, Nanako O. Ogawa, Katsuhiko Suzuki, Naohiko Ohkouchi
Summary: Research on the metal pollution in Lake Biwa's catchment area revealed the impact of human activities, indicating increased contributions of geological and anthropogenic metals from industrialization and urbanization. Despite strict regulations on industrial effluents from the late 1960s onwards, zinc concentrations continued to persist until the 1980s, primarily coming from domestic wastewaters and diffusive sources like runoff from paddy fields, roads, and industrial areas.
APPLIED GEOCHEMISTRY
(2021)
Article
Environmental Sciences
Sadiye Tugce Eren, Ali Sungur, Huseyin Ekinci
Summary: This study assessed geochemical fractions, sources, and risks of trace metals in sediments of Umurbey stream in Turkey. The results showed that the concentrations of Cd, Zn, and partially Pb were highest in sediments due to topography, geology, and agricultural practices. The study indicated that Cd, Zn, and partially Pb were more mobile in sediments, posing potential risks to the environment in the long term.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2021)
Letter
Ecology
Janne Alahuhta, Maija Toivanen, Jan Hjort
NATURE ECOLOGY & EVOLUTION
(2020)
Article
Environmental Sciences
Olli Karjalainen, Miska Luoto, Juha Aalto, Bernd Etzelmuller, Guido Grosse, Benjamin M. Jones, Karianne S. Lilleoren, Jan Hjort
ENVIRONMENTAL RESEARCH LETTERS
(2020)
Article
Geochemistry & Geophysics
Helena Bergstedt, Annett Bartsch, Anton Neureiter, Angelika Hoefler, Barbara Widhalm, Nicholas Pepin, Jan Hjort
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2020)
Article
Geosciences, Multidisciplinary
L. Rouyet, O. Karjalainen, P. Niittynen, J. Aalto, M. Luoto, T. R. Lauknes, Y. Larsen, J. Hjort
Summary: This study investigates the spatial distribution of mean annual ground velocity in a mountainous landscape in Northern Norway using radar remote sensing and statistical modeling. Slope angle and mean annual air temperature are identified as the most important environmental factors affecting the distribution of horizontal and vertical velocity components. Vegetation and snow cover also play a role in indicating ground material and moisture conditions.
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
(2021)
Article
Ecology
Julia Kemppinen, Pekka Niittynen, Konsta Happonen, Peter C. le Roux, Juha Aalto, Jan Hjort, Tuija Maliniemi, Olli Karjalainen, Helena Rautakoski, Miska Luoto
Summary: The study reveals that geomorphological processes have a significant impact on the functional traits of Arctic plant communities, with cryoturbation being the most influential factor on structural and leaf economic traits. The results show consistency across different regions, indicating a coherent biome-level trait response to geomorphological processes.
GLOBAL ECOLOGY AND BIOGEOGRAPHY
(2022)
Article
Biodiversity Conservation
Jan Hjort, Helena Tukiainen, Henriikka Salminen, Julia Kemppinen, Petteri Kiilunen, Henna Snare, Janne Alahuhta, Tuija Maliniemi
Summary: Currently, there is a need for comprehensive approaches in biodiversity conservation due to global environmental change. Recent research suggests that considering the diversity of Earth's abiotic features (geodiversity) can provide new insights and applications in investigating and managing biodiversity. However, methods to map and quantify geodiversity at a local scale have not been developed, even though this scale is important for conservation planning. In this study, a field methodology for observing plot-scale geodiversity is introduced and pilot-tested in an Arctic-alpine tundra environment. The results provide empirical evidence of the relationship between plot-scale biodiversity and geodiversity and offer guidance for practitioners on implementing the method.
JOURNAL OF APPLIED ECOLOGY
(2022)
Article
Ecology
Henriikka Salminen, Helena Tukiainen, Janne Alahuhta, Jan Hjort, Karoliina Huusko, John-Arvid Grytnes, L. Camila Pacheco-Riano, Jutta Kapfer, Risto Virtanen, Tuija Maliniemi
Summary: Recent studies have shown that geodiversity is positively related to biodiversity at the landscape scale, but more evidence is needed at finer scales. This study investigates the link between plot-scale geodiversity and plant species richness in different tundra landscapes.
Article
Environmental Sciences
Xiaoqing Peng, Tingjun Zhang, Oliver W. Frauenfeld, Cuicui Mu, Kang Wang, Xiaodong Wu, Donglin Guo, Jing Luo, Jan Hjort, Juha Aalto, Olli Karjalainen, Miska Luoto
Summary: Permafrost warming leads to greenhouse gas release, resulting in positive feedback to climate change. Earth system models suggest that the near-surface permafrost may largely disappear by the end of this century, but with high uncertainty. This study applies the Stefan solution to estimate permafrost degradation under future emission scenarios, finding that the extent of near-surface permafrost degradation is lower than model projections.
Article
Environmental Sciences
Aleksi Isoaho, Lauri Ikkala, Hannu Marttila, Jan Hjort, Timo Kumpula, Pasi Korpelainen, Aleksi Rasanen
Summary: This study used unmanned aerial vehicle data and a linear regression model to spatially model the water table level in peatlands in northern Finland, demonstrating the potential for assessing the spatial success of restoration using multi-sensor ultra-high-resolution data.
REMOTE SENSING APPLICATIONS-SOCIETY AND ENVIRONMENT
(2023)
Article
Geography, Physical
Oona Leppiniemi, Olli Karjalainen, Juha Aalto, Miska Luoto, Jan Hjort
Summary: This study models the suitable environments for palsas and peat plateaus in the Northern Hemisphere permafrost region and assesses the impact of climate change on these landforms. The research finds that climate change will significantly reduce the suitable environments and have important implications for greenhouse gas emissions in the circumpolar region.
Article
Environmental Sciences
Youhua Ran, Guodong Cheng, Yuanhong Dong, Jan Hjort, Amy Lauren Lovecraft, Shichang Kang, Meibao Tan, Xin Li
Summary: The degradation of permafrost in the Qinghai-Tibet Plateau causes significant economic damage to infrastructure, requiring an estimated $6.31 billion to maintain current functionality by 2090. Strategic adaptations can save around 20.9% of these costs, and controlling global warming to below 1.5 degrees C can reduce the costs by $1.32 billion. Mitigating global warming and investing in infrastructure adaptation and maintenance are crucial for the sustainable development of the Qinghai-Tibet Plateau.
COMMUNICATIONS EARTH & ENVIRONMENT
(2022)
Article
Geosciences, Multidisciplinary
Youhua Ran, Xin Li, Guodong Cheng, Jingxin Che, Juha Aalto, Olli Karjalainen, Jan Hjort, Miska Luoto, Huijun Jin, Jaroslav Obu, Masahiro Hori, Qihao Yu, Xiaoli Chang
Summary: Monitoring the thermal state of permafrost is crucial for environmental science and engineering applications. This study presents novel permafrost datasets for the Northern Hemisphere, providing predictions of mean annual ground temperature and active layer thickness, as well as estimates of permafrost occurrence and zonation based on hydrothermal conditions. These datasets, integrated with extensive field and geospatial data, are more accurate than previous circumpolar maps. They contribute to an updated understanding of permafrost in the Northern Hemisphere and have potential applications in various fields.
EARTH SYSTEM SCIENCE DATA
(2022)
Review
Environmental Sciences
Jan Hjort, Dmitry Streletskiy, Guy Dore, Qingbai Wu, Kevin Bjella, Miska Luoto
Summary: The warming and thawing of ice-rich permafrost pose a significant threat to polar and high-altitude infrastructure. Observed infrastructure damage is already substantial, and under anthropogenic warming, it is projected to continue and increase. Mitigation techniques exist to alleviate these impacts, but better understanding of high-risk regions is needed.
NATURE REVIEWS EARTH & ENVIRONMENT
(2022)
Article
Marine & Freshwater Biology
Marja Lindholm, Janne Alahuhta, Jani Heino, Jan Hjort, Heikki Toivonen
Article
Geography, Physical
Olli Karjalainen, Miska Luoto, Juha Aalto, Jan Hjort
Article
Environmental Sciences
Toshimi Nakajima, Mao Kuragano, Makoto Yamada, Ryo Sugimoto
Summary: This study compared the contribution of submarine groundwater discharge (SGD) to river nutrient budgets at nearshore and embayment scales, and found that SGD-derived nutrients become more important at larger spatial scales.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Fan Liu, Lei Zhang, Chongyang Zhang, Ziguang Chen, Jingguang Li
Summary: NO2 emissions from wall-mounted gas stoves used for household heating have become a significant source of indoor pollution in Chinese urban areas. The high indoor concentration of NO2 poses potential health risks to residents. It is urgently necessary to establish relevant regulations and implement emission reduction technologies to reduce NO2 emissions from wall-mounted gas stoves.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Letter
Environmental Sciences
Hans Peter H. Arp, Raoul Wolf, Sarah E. Hale, Sivani Baskaran, Juliane Gluege, Martin Scheringer, Xenia Trier, Ian T. Cousins, Harrie Timmer, Roberta Hofman-Caris, Anna Lennquist, Andre D. Bannink, Gerard J. Stroomberg, Rosa M. A. Sjerps, Rosa Montes, Rosario Rodil, Jose Benito Quintana, Daniel Zahn, Herve Gallard, Tobias Mohr, Ivo Schliebner, Michael Neumann
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Philomina Onyedikachi Peter, Binessi Edouard Ifon, Francois Nkinahamira, Kayode Hassan Lasisi, Jiangwei Li, Anyi Hu, Chang-Ping Yu
Summary: This study investigates the relationship between dissolved organic matter (DOM) and Rare Earth Elements (REEs) in sediments from Yundang Lagoon, China. The results show four distinct fluorescent components, with protein-like substances being the most prevalent. Additionally, the total fluorescence intensity and LREE concentrations exhibit a synchronized increase from Outer to Inner to Songbai Lake core sediments. The findings demonstrate a strong correlation between DOM content and pollution levels.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Surya Gupta, Pasquale Borrelli, Panos Panagos, Christine Alewell
Summary: The objective of this study is to incorporate soil hydraulic properties into the erodibility factor (K) of USLE-type models. By modifying and improving the existing equations for soil texture and permeability, the study successfully included information on saturated hydraulic conductivity (Ksat) into the calculation of K factor. Using the Random Forest machine learning algorithm, two independent K factor maps with different spatial resolutions were generated. The results show that the decrease in K factor values has a positive impact on the modeling of soil erosion rates.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jesmin Akter, Wendy J. M. Smith, Yawen Liu, Ilho Kim, Stuart L. Simpson, Phong Thai, Asja Korajkic, Warish Ahmed
Summary: The choice of workflow in wastewater surveillance has a significant impact on SARS-CoV-2 concentrations, while having minimal effects on HF183 and no effect on HAdV 40/41 concentrations. Certain components in the workflow can be interchangeable, but factors such as buffer type, chloroform, and homogenization speed can affect the recovery of viruses and bacteria.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yu Luo, Xueting Yang, Diwei Wang, Hongmei Xu, Hongai Zhang, Shasha Huang, Qiyuan Wang, Ningning Zhang, Junji Cao, Zhenxing Shen
Summary: Atmospheric PM2.5, which can generate reactive oxygen species (ROS), is associated with cardiorespiratory morbidity and mortality. The study found that both the mass concentration of PM2.5 and the DTT activity were higher during the heating season than during the nonheating season. Combustion sources were the primary contributors to DTT activity during the heating season, while secondary formation dominated during the nonheating season. The study also revealed that biomass burning had the highest inherent oxidation potential among all sources investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Erin L. Murphy, Leah R. Gerber, Chelsea M. Rochman, Beth Polidoro
Summary: Plastic pollution has devastating consequences for marine organisms. This study uses a trait-based framework to develop a vulnerability index for marine mammals, seabirds, and sea turtles in Hawai'i. The index ranks 63 study species based on their vulnerability to macroplastic pollution, providing valuable information for species monitoring and management priorities.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Kenji Maurice, Amelia Bourceret, Sami Youssef, Stephane Boivin, Liam Laurent-Webb, Coraline Damasio, Hassan Boukcim, Marc-Andre Selosse, Marc Ducousso
Summary: Growing pressure from climate change and agricultural land use is destabilizing soil microbial community interactions. Little is known about microbial community resistance and adaptation to disturbances, hindering our understanding of recovery latency and implications for ecosystem functioning. This study found that anthropic disturbance and natural disturbance have different effects on the topology and stability of soil microbial networks.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yunhao Li, Yali Feng, Haoran Li, Yisong Yao, Chenglong Xu, Jinrong Ju, Ruiyu Ma, Haoyu Wang, Shiwei Jiang
Summary: Deep-sea mining poses a serious threat to marine ecosystems and human health by disturbing sediment and transmitting metal ions through the food chain. This study developed a new regenerative adsorption material, OMN@SA, which effectively removes metal ions. The adsorption mechanism and performance of the material for metal ion fixation were investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Antonio Medici, Margherita Lavorgna, Marina Isidori, Chiara Russo, Elena Orlo, Giovanni Luongo, Giovanni Di Fabio, Armando Zarrelli
Summary: Valsartan, a widely used antihypertensive drug, has been detected in high concentrations in surface waters due to its unchanged excretion and incomplete degradation in wastewater treatment plants. This study investigated the degradation of valsartan and identified 14 degradation byproducts. The acute and chronic toxicity of these byproducts were evaluated in key organisms in the freshwater trophic chain.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jiang Lin, Lianbao Chi, Qing Yuan, Busu Li, Mingbao Feng
Summary: This study investigated the photodegradation behavior and product formation of two representative pharmaceuticals in simulated estuary water. The study found that the formed transformation products of these pharmaceuticals have potential toxicity on marine organisms, including oxidative stress and damage to cellular components.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Hua Fang, Dongdong Jiang, Ye He, Siyi Wu, Yuehong Li, Ziqi Zhang, Haoting Chen, Zixin Zheng, Yan Sun, Wenxiang Wang
Summary: This study revealed that exposure to lower levels of air pollutants led to decreased pregnancy rates, with PM10, NO2, SO2, and CO emerging as the four most prominent pollutants. Individuals aged 35 and above exhibited heightened susceptibility to pollutants.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Ali Shaan Manzoor Ghumman, Rashid Shamsuddin, Amin Abbasi, Mohaira Ahmad, Yoshiaki Yoshida, Abdul Sami, Hamad Almohamadi
Summary: In this study, inverse vulcanized polysulfides (IVP) were synthesized by reacting molten sulfur with 4-vinyl benzyl chloride, and then functionalized using N-methyl D-glucamine (NMDG). The functionalized IVP showed a high mercury adsorption capacity and a machine learning model was developed to predict the amount of mercury removed. Furthermore, the functionalized IVP can be regenerated and reused, providing a sustainable and cost-effective adsorbent.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Rita Bonfiglio, Renata Sisto, Stefano Casciardi, Valeria Palumbo, Maria Paola Scioli, Erica Giacobbi, Francesca Servadei, Gerry Melino, Alessandro Mauriello, Manuel Scimeca
Summary: This study investigated the presence of aluminum in human colon cancer samples and its potential association with biological processes involved in cancer progression. Aluminum was found in tumor areas of 24% of patients and was associated with epithelial to mesenchymal transition (EMT) and cell death. Additional analyses revealed higher tumor mutational burden and mutations in genes related to EMT and apoptosis in aluminum-positive colon cancers. Understanding the molecular mechanisms of aluminum toxicity may improve strategies for the management of colon cancer patients.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
