Article
Environmental Sciences
Gibbon Ramaremisa, Michelle Ndlovu, Dalia Saad
Summary: Microplastics were extracted from surface water and sediment samples collected from the Vaal River in Johannesburg, South Africa. The study recorded the abundances, identified the dominant polymers, and analyzed the potential sources of microplastics in both water and sediment samples.
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2022)
Article
Geosciences, Multidisciplinary
Lingshi Yin, Xiaofeng Wen, Danlian Huang, Zhenyu Zhou, Ruihao Xiao, Li Du, Hongyu Su, Kanglong Wang, Quyang Tian, Zhousha Tang, Lan Gao
Summary: This study investigates the characteristics of microplastic pollution in the sediments of the Xiangjiang River, China. The results show that the microplastic abundance is significantly higher in the lower reach of the river compared to the upper and middle reaches. Different types of microplastics exhibit different distribution characteristics, and hydrodynamic conditions play an important role in their distribution.
Article
Environmental Sciences
Xiaoqin Yu, Yimo Zhao, Chutian Zhang, Chengfang Yang, Zhuozhi Ouyang, Peng Liu, Xuetao Guo, Lingyan Zhu
Summary: The study investigated the pollution of microplastics (MPs) in the water and sediment of Xi'an, the largest city in northwest China. MPs were mainly in fiber and fragment shapes, with the highest abundance in tourism and residential areas, indicating the impact of human activities. The research highlights the importance of monitoring and mitigating urban MPs pollution, with parks acting as significant sinks for MPs.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
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
Ezra D. Osorio, Maria Antonia N. Tanchuling, Ma. Brida Lea D. Diola
Summary: The study revealed that microplastics are widely present in the river mouths of the Philippines, with varying concentrations. The most abundant shape was fragments, and the most common colors were white, blue, and transparent. The main types of microplastics found were polypropylene, high and low-density polyethylene, and polystyrene.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2021)
Article
Environmental Sciences
Shuo Liu, Huan Chen, Jingzhen Wang, Lei Su, Xilong Wang, Jingmin Zhu, Wenlu Lan
Summary: The study focused on microplastics pollution in Dafeng River in Guangxi Province, China. The research found that while the river had relatively low microplastics pollution levels, aquatic organisms, particularly fish, showed more severe contamination. This highlights the need for attention to microplastics pollution in organisms of remote rivers.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Environmental Sciences
Rene A. Rojas-Luna, Luisa Oquendo-Ruiz, Carlos A. Garcia-Alzate, Victoria A. Arana, Roberto Garcia-Alzate, Jorge Trilleras
Summary: This study investigated the presence and distribution of microplastic particles in the surface water of Luruaco Lake in Colombia. The results showed that the abundance of microplastics varied between the dry and rainy seasons, with higher contamination in the rainy season. The most abundant types of microplastics in the lake were polyester, polystyrene, and polyethylene terephthalate.
Article
Engineering, Marine
Siriporn Pradit, Prakrit Noppradit, Karnda Sengloyluan, Phudith Suwanno, Varaporn Tanrattanakul, Kittiwara Sornplang, Narissara Nuthammachot, Preyanuch Jitkaew, Thongchai Nitiratsuwan
Summary: In 2022, surface water samples from the U-Taphao River were collected four times at different locations. The results showed a decreasing trend in the number of microplastics from upstream to downstream each month. Fibers were the most commonly found microplastic type. The study highlights the presence of microplastic contamination in the river water and the importance of regular monitoring.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Environmental Sciences
Aris Ismanto, Tony Hadibarata, Risky Ayu Kristanti, Denny Nugroho Sugianto, Sugeng Widada, Warsito Atmodjo, Alfi Satriadi, Malya Asoka Anindita, Amal M. Al-Mohaimeed, Arshad Mehmood Abbasi
Summary: This study assessed the prevalence and distribution of microplastics in water and sediments of the Pekalongan River in Indonesia. The study found higher concentrations of microplastics in water compared to sediments. Fragment and film microplastics were the main components, with microplastics measuring less than 1 mm constituting more than half of the total. Colored microplastics, particularly blue and black microplastics, were also prominent. Polystyrene, polyester, and polyamide were identified as the primary polymer components.
MARINE POLLUTION BULLETIN
(2023)
Article
Environmental Sciences
Khalida Jabeen, Jiayi Xu, Kai Liu, Lixin Zhu, Daoji Li
Summary: This study investigates the monthly profile of plastic pollution in the Soan River mouth and finds that plastic pollutants, particularly microplastics, are abundantly present throughout the year with variations in abundance and morphotypes influenced by seasonal changes and river characteristics. The study also reveals the significant impact of anthropogenic activities on polluting the river, providing important insights for understanding plastic pollution and developing policies to control it in riverine networks.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Tiezhu Li, Yijin Wang, Meng Jiao, Zhen Zhao, Ruilong Li, Chengrong Qin
Summary: The study focuses on the effect of mangrove root systems on the migration of microplastics in sediment. By analyzing the spatial distribution of microplastics in different zones and their correlation with sediment properties, it was found that the presence of mangrove root systems significantly increased the abundance of microplastics near the roots. Pore water content and pH were found to influence the abundances of different microplastic characteristics and promote their accumulation towards the root systems.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Jianxin Fan, Lan Zou, Guoliang Zhao
Summary: The study investigated the abundance and distribution of microplastics in the Yangtze River along Chongqing City, finding that microplastics were prevalent, with fibers and films being the dominant forms. Polypropylene, polyvinyl chloride, high-density polyethylene, polyester, and wool fibers were identified as the primary polymer types present.
JOURNAL OF SOILS AND SEDIMENTS
(2021)
Article
Environmental Sciences
Wei Sheng Choong, Tony Hadibarata, Adhi Yuniarto, Kuok Ho Daniel Tang, Faizuan Abdullah, Muhammad Syafrudin, Dunia A. Al Farraj, Amal M. Al-Mohaimeed
Summary: Microplastic contamination is a widespread issue in the Baram River, with fragments being the most common type of microplastic found. The study also identified five different types of microplastic polymers in the river, indicating a significant presence of microplastics in the water and sediment.
MARINE POLLUTION BULLETIN
(2021)
Article
Environmental Sciences
Imogen E. Napper, Anju Baroth, Aaron C. Barrett, Sunanda Bhola, Gawsia W. Chowdhury, Bede F. R. Davies, Emily M. Duncan, Sumit Kumar, Sarah E. Nelms, Md. Nazmul Hasan Niloy, Bushra Nishat, Taylor Maddalene, Natalie Smith, Richard C. Thompson, Heather Koldewey
Summary: Rivers are important pathways for microplastics to enter marine environments, but uncertainties exist regarding the amount of microplastics transported from rivers to the ocean, leading to inaccuracies in our understanding of microplastic quantity and transport in freshwater systems. Additionally, rivers may serve as long-term sinks for microplastics, with accumulation in sediment due to factors such as high density or other biological, chemical, and physical factors. This study compared the type and concentration of microplastics in air, water, and sediment along the Ganges River for the first time, from sea to source, to investigate abundance, spatial distribution, and characteristics. The study found that clothing is the likely primary source of microplastics in the river system, influenced by atmospheric deposition, wastewater, and direct input, particularly in high population density areas. However, a significant proportion of denser microplastics settle in sediment before the river discharges into the ocean, influenced by polymer type and shape.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Aris Ismanto, Tony Hadibarata, Denny Nugroho Sugianto, Muhammad Zainuri, Risky Ayu Kristanti, Ulung Jantama Wisha, Undang Hernawan, Malya Asoka Anindita, Audrey Primus Gonsilou, Mohamed Soliman Elshikh, Amal M. Al-Mohaimeed, Arshad Mehmood Abbasi
Summary: The aim of this study was to assess the presence of microplastics in the water and sediments of the Surakarta city river basin in Indonesia. The results revealed that fragments and fibers were the primary types of microplastics seen in both water and sediment samples, with a considerable percentage having dimensions below 1 mm.
MARINE POLLUTION BULLETIN
(2023)
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)