Article
Environmental Sciences
Marziye Molazadeh, Fan Liu, Laura Simon-Sanchez, Jes Vollersten
Summary: The study investigated the accumulation of microplastics in the sediments of a stormwater treatment pond to understand how these facilities protect the natural environment from this emerging pollutant. The analysis of thirteen sediment samples revealed an uneven distribution of microplastics in the pond. The transport mechanisms of microplastics from water to sediments were simulated using a computational fluid dynamics model, showing that advection and dispersion were likely the driving mechanism. The presence of organic matter and silt content correlated with the distribution of microplastics, indicating similar deposition processes.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Multidisciplinary Sciences
Rico Leiser, Maja Schumann, Tallent Dadi, Katrin Wendt-Potthoff
Summary: Research shows that in freshwater reservoir sediments, over 85% of microplastics are stably buried, with only a small percentage being re-released into the water. This indicates the significant role of low-flow freshwater in reducing the microplastic load to the oceans.
SCIENTIFIC REPORTS
(2021)
Article
Environmental Sciences
Zhenzhou Yin, Yi Zhao
Summary: Microplastics (MPs) pollution in freshwater sediments poses hidden dangers to food and drinking water supply. Implementing sustainable management measures for MPs pollution in freshwater sediments has become an inevitable trend. However, current studies lack sufficient discussion on the sustainable management of MPs pollution, making it difficult to formulate effective measures. This study analyzed the pollution status of MPs in freshwater sediments from 84 study areas and found that the pollution was mainly concentrated in densely populated and economically developed regions. The study suggests reducing MPs discharge and restricting the use of high-risk polymers as effective prevention methods.
Article
Engineering, Environmental
Mohammad Wazne, Florian Mermillod-Blondin, Manon Vallier, Frederic Hervant, Adeline Dumet, Holly A. Nel, Anna Kukkola, Stefan Krause, Laurent Simon
Summary: This study investigated the impact of microplastics on the bioturbator Tubifex tubifex and the biogeochemical processes at the sediment-water interface. The results showed that medium concentration of microplastics had significant effects on the oxidative stress response of the worms, leading to a reduction in their bioturbation activities and the stimulation of water fluxes at the sediment-water interface. Therefore, microplastics significantly reduced the contributions of the worms to organic matter mineralization and nutrient fluxes.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Paula E. Redondo-Hasselerharm, Andreu Rico, Albert A. Koelmans
Summary: This study evaluates the risks of microplastics in freshwater sediments worldwide. Stricter quality criteria and alignment methods were used to assess the risks to benthic communities. The results suggest that the risks of microplastics in sediments cannot be excluded at current concentrations globally.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
J. M. Carlos Silva, Ana Luisa Machado, Diana Campos, C. M. Andreia Rodrigues, L. Ana Patricio Silva, M. V. M. Amadeu Soares, L. T. Joao Pestana
Summary: The study aimed to assess the effects of polyethylene microplastics (PE-MPs) on freshwater benthic macroinvertebrate community structure and functional endpoints, such as primary production and leaf litter decomposition. Exposure to PE-MPs led to changes in macroinvertebrate community structure, but did not significantly affect functional endpoints. Further research is needed to understand the ecological consequences of microplastics in freshwater environments.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Review
Environmental Sciences
D. K. Gupta, D. Choudhary, A. Vishwakarma, M. Mudgal, A. K. Srivastava, A. Singh
Summary: The production of plastic in the world is a major environmental concern due to the limited recycling and the accumulation of waste, particularly microplastics, in the environment. This review focuses on the occurrence and effects of microplastics in the freshwater environment, highlighting the need for further research and understanding of their sources, distribution, characterization, and toxicological effects. It also suggests the development of a standard protocol for the identification of microplastics and proposes methods for their detection and prevention.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Environmental Sciences
Kannaiyan Neelavannan, Indra Sekhar Sen, Aasif Mohmad Lone, Kalpana Gopinath
Summary: This study assesses the quantity, type, and sources of microplastics in lake bottom sediments from Anchar Lake in the Northwest Himalaya. The analysis reveals that the sediments are significantly contaminated with microplastics, with the dominant polymer composition being polyamide. The presence of PVC polymers results in a high Polymer Hazard Index. However, according to the Pollution Load Index, the sediments in Anchar Lake are relatively less contaminated. The microplastics in the lake predominantly originate from the automobile, textile, and packaging industries.
Article
Environmental Sciences
Simeon Onoja, Holly A. Nel, Mohamed Abou-Elwafa Abdallah, Stuart Harrad
Summary: This paper critically reviews the current state of knowledge on microplastics in freshwater sediments, their analysis methods, occurrence, temporal trends, and risks to the freshwater aquatic environment. It also suggests further research on the association between additives and microplastics.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Alessandra Cincinelli, Costanza Scopetani, David Chelazzi, Tania Martellini, Maria Pogojeva, Jaroslav Slobodnik
Summary: This study investigated the occurrence, morphology, and identification of microplastics in Black Sea sediments at different depths using a non-invasive method. The research found that microplastics were present in 83% of sediment samples, with polyethylene and polypropylene being the most abundant plastic polymers, and fibers being the dominant type of microplastics in sediments.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Review
Environmental Sciences
Hsuan-Cheng Lu, Shima Ziajahromi, Peta A. Neale, Frederic D. L. Leusch
Summary: The study highlights the widespread presence of microplastics in freshwater ecosystems across six continents, with significant variations in concentrations and types. However, inconsistencies in methods, analytical techniques, and reporting units between studies pose challenges for comprehensive synthesis. Standardizing reporting language, providing detailed information, and implementing comprehensive quality assurance protocols are recommended to enhance comparability and reliability in microplastic research.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Geosciences, Multidisciplinary
Qiuping Wang, Kai Huang, Yizheng Li, Yanling Zhang, Lei Yan, Kaihang Xu, Shaoquan Huang, Muhammad Junaid, Jun Wang
Summary: This study investigated the pollution level of microplastics (MPs) in the largest wetland park in South China, the Xijin Wetland Park. The results showed the presence of MPs in both surface water and sediment samples, with 'fiber' being the most abundant shape and '<0.05 mm' as the most common particle size. Nylon fiber, polyester, and polyethylene were the most frequently detected MPs polymers. This study provides baseline data and guidelines for controlling plastic pollution in the Xijin Wetland Park.
Article
Environmental Sciences
Lingshi Yin, Xiaofeng Wen, Danlian Huang, Guangming Zeng, Rui Deng, Ruyi Liu, Zhenyu Zhou, Jiaxi Tao, Ruihao Xiao, Heming Pan
Summary: This study reveals the accumulation of microplastics in freshwater reeds, with varying levels of abundance in different areas. Lake water and fisheries are identified as significant sources of microplastics.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Beibei He, Mitchell Smith, Prasanna Egodawatta, Godwin A. Ayoko, Llew Rintoul, Ashantha Goonetilleke
Summary: This study established a model to investigate the dispersion and transport processes of common microplastics in river sediments, finding that lower density microplastics are more mobile and different types of plastics exhibit varying levels of mobility in sediment. The study results suggest that river sediments may act as pollution sinks for microplastics.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Khawla Chouchene, Joana C. Prata, Joao da Costa, Armando C. Duarte, Teresa Rocha-Santos, Mohamed Ksibi
Summary: The Praia da Barra beach in Aveiro has accumulated large quantities of microplastics, predominantly polyethylene, polypropylene, polystyrene, nylon, and polyester, with particles smaller than 1 mm making up 99.5% of the total, mostly transparent or black in color.
MARINE POLLUTION BULLETIN
(2021)
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)