Article
Environmental Sciences
Darren J. Koppel, Gwilym A. Price, Kathryn E. Brown, Merrin S. Adams, Catherine K. King, Damian B. Gore, Dianne F. Jolley
Summary: Metal contaminants in Antarctic soils show varied concentrations and activities in different extraction agents, while the DGT method can provide environmentally relevant measurements of metal contaminant lability.
Article
Environmental Sciences
Rui Chen, Jiaxing Liu, Guoyu Ding, Fumin Ren, Rongguang Shi, Jungang Lv, Jing Cheng
Summary: This study developed new binding gels for the rapid and simultaneous quantification of bioavailability concentrations of various heavy metals in soils. The SA-PGA gel exhibited the best adsorption properties, and the SA-PGA-DGT device proved to be a reliable tool for this analysis.
JOURNAL OF SOILS AND SEDIMENTS
(2023)
Article
Environmental Sciences
Thomas D. W. Corbett, Adam Hartland, William Henderson, Gerald J. Rys, Louis A. Schipper
Summary: A novel Br--DGT technology was developed for accurate measurement of bromide concentrations in water, with high absorption and elution efficiencies, providing comparable results under different conditions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Chemistry, Analytical
Josselin Gorny, Cyrielle Jardin, Olivier Diez, Josep Galceran, Alkiviadis Gourgiotis, Steffen Happel, Frederic Coppin, Laureline Fevrier, Caroline Simonucci, Charlotte Cazala
Summary: The study investigated the measurement of total I- concentration in environmental waters using the AgdCl-DGT method, which showed good selectivity and stability. Results demonstrated different responses of the AgdCl-DGT method in waters with different ionic strengths.
ANALYTICA CHIMICA ACTA
(2021)
Review
Chemistry, Multidisciplinary
Siday Marrugo-Madrid, Marta Turull, Hao Zhang, Sergi Diez
Summary: Determining the concentration of an environmental pollutant may not accurately assess health risks if the pollutant is not bioavailable. Therefore, methods to determine pollutant bioavailability are more relevant for assessing toxicity. The diffusive gradient in thin films (DGT) technique has been used to measure labile compounds in the environment, with advancements in speciation and bioavailability of metals and metalloids.
ENVIRONMENTAL CHEMISTRY LETTERS
(2021)
Article
Chemistry, Analytical
Stefan Wagner, Jakob Santner, Johanna Irrgeher, Markus Puschenreiter, Steffen Happel, Thomas Prohaska
Summary: A method using DGT was developed for accurate quantification of trace-level Sr and Pb concentrations and isotope ratios in soils. The method utilizes a novel PTFE membrane binding layer with high selectivity for Sr and Pb. The study showed that the method performed well under various conditions and selective elution process allowed for purification of Sr and Pb fractions.
ANALYTICAL CHEMISTRY
(2022)
Article
Engineering, Environmental
Mengke Song, Yicheng Su, Longfei Jiang, Ke Peng, Jinling Li, Sisi Liu, Yingtao Sun, Chang-Er Chen, Chunling Luo
Summary: This study utilized the DGT technique to determine the bioavailability of antibiotics in soil and compared the results with plant uptake, soil solutions, and solvent extraction methods. The results showed that DGT had predictive capability for plant uptake of antibiotics and the bioavailability varied in different soils.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Hongmei Cao, Qingwei Bu, Qingshan Li, Xiaohong Gao, Huaijun Xie, Wenwen Gong, Xiaoxiao Wang, Lei Yang, Jianfeng Tang
Summary: This study developed passive sampling devices called diffusive gradients in thin films (DGTs) for sampling pharmaceuticals in surface waters. The results showed that the HLB-DGT devices exhibited good performance and their results were comparable to conventional grab sampling. Additionally, the study expanded the monitoring range to include three antiviral drugs used for COVID-19 treatment.
ENVIRONMENTAL POLLUTION
(2022)
Article
Chemistry, Analytical
Vendula Smolikova, Pavlina Pelcova, Andrea Ridoskova, Martine Leermakers
Summary: In this study, the Lewatit FO 36-DGT resin gel showed high uptake efficiency for uranium and a new elution protocol was proposed for simultaneous elution of arsenic and uranium. The elution efficiencies for As and U were found to be satisfactory, and the new protocol also allowed for fast and simple analysis of both elements using ICP-MS. This suggests that the Lewatit FO 36-DGT technique could become more widely used in laboratories without the need for modifications to existing analytical methods.
Article
Environmental Sciences
Si-Si Liu, Jin-Ling Li, Lin-Ke Ge, Cai-Lin Li, Jian-Liang Zhao, Qian-Qian Zhang, Guang-Guo Ying, Chang-Er Chen
Summary: The developed MIP-DGT sampler is capable of selectively measuring FQs in waters, showing selective adsorption and linear accumulation of FQs over time. The influence of DOM on MIP-DGT measurements is significant, but correlations with grab sampling results indicate the reliability of MIP-DGT measurements.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Xiaowen Ji, Jonathan K. Challis, Jenna Cantin, Ana S. Cardenas Perez, Yufeng Gong, John P. Giesy, Markus Brinkmann
Summary: Dynamic processes of organic contaminants in sediments have toxicological implications in aquatic systems. The study used DGT devices to measure the flux and exchange rates of antipsychotic compounds in sandy sediments. The results showed the continuous removal of these compounds from the sediments and their movement to the adjacent sediment solution. A dynamic model was used to determine the rate constants and distribution coefficients of the antipsychotics. The study highlights the importance of understanding the desorption kinetics of contaminants in sediments.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Han Wang, Ben Yu, Baochen Li, Ting Zhao, Yimin Cai, Yongming Luo, Haibo Zhang
Summary: This study found that the addition of PE microplastics in paddy soil and saline soil can promote the degradation of SMX, but has different effects on the bioaccessibility of SMX. The addition of PE microplastics in saline soil significantly reduces the bioaccessibility of SMX and increases the risk of SMX re-release.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Zhihao Wu, Xia Jiang, Junyi Chen, Shuhang Wang, Cheng Yao
Summary: This research used DGT assemblies with different binding layers to study the mobility of N and P in sediments in Western Lake Taihu. The results provide important insights into the biogeochemical processes and nutrient release in lakes, which are crucial for effective nutrient management.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Review
Engineering, Environmental
Yixuan Liang, Hanbing Li, Sumei Li, Sha Chen
Summary: Antibiotics, widely used in human and veterinary medicine, are persistent organic compounds that contribute to the development of antibiotic resistance in microbes. This review discusses the use of o-DGT technology to study the behavior of antibiotics in different environmental media. It compares different agarose diffusive gel and binding agents, explores the feasibility of o-DGT in water and soil, and analyzes the potential of using o-DGT in sediment for antibiotic measurements.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Geochemistry & Geophysics
Zhihao Wu, Xia Jiang, Junyi Chen, Shuhang Wang
Summary: In this study, a passive sampling technique called diffusion gradients in thin films (DGT) was used to investigate the biogeochemical behaviors and dynamic transfer of PO4-P, NH4-N, and NO3-N in sediments of Lake Hulun in China. Based on the analysis of DGT concentration profiles and redox status, it was found that the release of phosphorus (P) is mainly controlled by the reductive dissolution of Mn(IV) or Fe(III) (oxyhydr)oxides, while the release of ammonium (NH4-N) is influenced by denitrification and dissimilatory nitrate reduction. The results of this study provide valuable information for lake pollution control and sediment remediation strategies.
JOURNAL OF GEOCHEMICAL EXPLORATION
(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)