Article
Engineering, Environmental
Andreas Fritzsche, Julian Bosch, Michael Sander, Christian Schroder, James M. Byrne, Thomas Ritschel, Prachi Joshi, Markus Maisch, Rainer U. Meckenstock, Andreas Kappler, Kai U. Totsche
Summary: In redoximorphic soils, microbial reduction of iron (III) minerals is significantly influenced by organic matter, which can either decelerate or accelerate the reduction rate. The organic matter released by microbial activity under anaerobic conditions (efOM) plays a key role in affecting the electron uptake and crystallinity of iron (III) minerals. The presence of efOM, whether adsorbed or coprecipitated, leads to distinct effects on microbial reduction of iron (III) minerals by affecting the surface passivation and altering the mineral structure.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Soil Science
Xun Duan, Zhe Li, Yuhong Li, Hongzhao Yuan, Wei Gao, Xiangbi Chen, Tida Ge, Jinshui Wu, Zhenke Zhu
Summary: Iron-bound organic carbon (Fe-OC) complexes play an important role in stabilizing soil organic carbon (SOC) against biodegradation. The stabilization of OC and its subsequent release from Fe minerals can affect the priming effect on SOC mineralization. Our study showed that 2LFh-bound glucose resulted in higher CO2 emissions and a negative priming effect on SOC mineralization, compared to 6LFh-bound glucose. The protection of SOC by Fe minerals depends on their crystalline structure and the amount of OC loading.
SOIL BIOLOGY & BIOCHEMISTRY
(2023)
Article
Engineering, Environmental
Yuechao Zhang, Qinqin Hao, Oumei Wang, Xiao-Hua Zhang, Fanghua Liu
Summary: Microbial iron reduction plays a crucial role in marine ecosystems, contributing to element cycling and supporting biological activities. Fermentative iron reduction exhibits a pH-buffering effect and improves glucose consumption, bacterial growth, and metabolite production.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Environmental Sciences
Dan Chen, Yi Li, Qitao Jiang, Chuang Chen, Zhixing Xiao
Summary: In this study, ferrihydrite-humin (Fh-HM) coprecipitates were prepared to enhance the electron-donating capacities of solid-phase humin (HM) and improve microbial denitrification. The Fh-HM coprecipitate showed a 2.4-fold higher electron-donating capacity compared to HM alone, and the enhancement was not due to bacterial growth. Quinone and organic-complexed Fe were identified as the main electron-donating fractions of the coprecipitate. Column experiments demonstrated the potential of Fh-HM-coated quartz sand for practical applications.
ENVIRONMENTAL RESEARCH
(2023)
Article
Agricultural Engineering
Lingzhan Miao, Wenyun Chai, Dan Luo, Tanveer M. Adyel, Jun Wu, Ming Kong, Wanzhong Wang, Jun Hou
Summary: A hybrid scaffold of polyvinyl alcohol/sodium alginate was used to prepare solid carbon sources (SCSs) for treating low carbon/nitrogen wastewater. The performance of denitrification was higher with the blended SCSs, and the microbial community structure was significantly affected.
BIORESOURCE TECHNOLOGY
(2023)
Article
Green & Sustainable Science & Technology
Chaorui Zhao, Nan Chen, Tong Liu, Chuanping Feng
Summary: Excessive sulfate levels are harmful to the environment and human health. This study aimed to find readily available organics for sulfate-reducing bacteria (SRB) in order to tackle sulfate pollution and develop sulfate removal and sulfur recovery methods. The research explored the utilization of different carbon sources by SRB, including alcohols, small organic acids, and sugars, and their impact on microbial sulfate reduction. The results showed that the conversion pathways of carbon sources and the presence of incomplete oxidizers significantly influenced the sulfate reduction process, as well as shaping the microbial community.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Environmental Sciences
Kaixin Han, Yibo Zeng, Yinghua Lu, Shujuan Meng, Yanzhen Hong, Liang Shen
Summary: Microbial reduction of ferrihydrite is common in natural environments and plays a crucial role in reductive dissolution of Fe(III) minerals. The continuous release of anthropogenic graphene oxide (GO) into water bodies raises concerns about the Fe(III)-reducing microorganisms/ferrihydrite binary system. This study investigated the interaction between GO and bacterial cells, focusing on colloidal stability, interfacial forces, and the impact on microbial ferrihydrite reduction. The results showed that the addition of GO significantly decreased the bioreduction efficiency of ferrihydrite, potentially affecting the balance of the iron biogeochemical cycle.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Kaixin Han, Yibo Zeng, Yinghua Lu, Shujuan Meng, Yanzhen Hong, Liang Shen
Summary: The presence of graphene oxide (GO) reduces the efficiency of microbial ferrihydrite reduction and causes aggregation with Shewanella spp. The aggregation process involves reversible and irreversible steps determined by interfacial forces and colloidal stability. This aggregation behavior may pose ecological risks to the iron biogeochemical cycle.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Soil Science
Jason K. Keller, Scott D. Bridgham, Kimberly K. Takagi, Cassandra A. Zalman, Jessica E. Rush, Crisand Anderson, Jessica M. Mosolf, Kristin N. Gabriel
Summary: Microbial reduction of organic matter is a key regulator of methane production in peatlands, with different effects in ombrotrophic and minerotrophic peat soils. In ombrotrophic peat soils, microbial organic matter reduction suppresses methane production, while in minerotrophic peat soils, it leads to higher rates of methane production. Furthermore, warmer temperatures can increase the reduction of solid-phase organic matter and the size of the organic electron acceptor pool, potentially impacting peatland greenhouse gas dynamics.
SOIL BIOLOGY & BIOCHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Xinlin Li, Sreehari Surendran Rajasree, Venkatesh Gude, Karan Maindan, Pravas Deria
Summary: Traditional MOF e-CRRs, constructed from catalytic linkers, face a kinetic bottleneck during multi-electron activation. We addressed this issue by decoupling catalysis and charge transport and building two MOF/e-CRR systems, CoPc@NU-1000 and TPP(Co)@NU-1000, with cobalt metalated phthalocyanine and tetraphenylporphyrin electrocatalysts. Careful choice of the host framework is critical in pairing up with the underlying electrochemical properties of the catalysts to facilitate efficient charge delivery for activation.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Environmental
Yao Zhao, Oliver W. Moore, Ke-Qing Xiao, Alba Otero-Farina, Steven A. Banwart, Feng-Chang Wu, Caroline L. Peacock
Summary: The mobility and fate of chromium in reducing environments are influenced by organic carbon. Low-weight carboxyl-rich organic carbon suppresses the migration of Cr(III) and stabilizes it with Fe minerals. This study reveals the behavior of chromium in reducing environments and suggests a potential synergy between Cr(VI) remediation and organic carbon stabilization.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Environmental Sciences
Shihao Gong, Qijia Cai, Pei Hong, Pei Cai, Bangding Xiao, Chunbo Wang, Xingqiang Wu, Cuicui Tian
Summary: This study proposes a new method to reduce demand for organic carbon in denitrification by using Pseudomonas hunanensis strain PAD-1 and pyrite. The addition of pyrite significantly enhances the heterotrophic denitrification efficiency of PAD-1 and up-regulates the activity of the electron transport system and nitrate reductase. Overall, adding pyrite presents a new approach to reducing carbon source demand and improving the nitrate harmless rate in the nitrogen removal process.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Zhen Yang, Tianran Sun, Andreas Kappler, Jie Jiang
Summary: This study reveals the role of biochar in mediating the extracellular electron transfer (EET) process by influencing the formation and transformation of cell EPS. The results show that biochar not only facilitates electron transfer but also increases the secretion of EPS, leading to faster reduction of iron minerals.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Yuecheng She, Xin Qi, Xiaodong Xin, Yanqing He, Wei Wang, Zhengkui Li
Summary: Microbial mechanisms play a crucial role in nitrate reduction in sediments of aquaculture ponds, with denitrification being the dominant process. The activities and composition of microbial communities in aquaculture ponds are influenced by the availability of carbon and nitrogen substrates, while autotrophic denitrifiers control the microbial network in natural freshwater sediments.
ENVIRONMENTAL RESEARCH
(2023)
Article
Biotechnology & Applied Microbiology
Jinxin Xie, Victoria S. Coker, Brian O'Driscoll, Rongsheng Cai, Sarah J. Haigh, Jonathan R. Lloyd
Summary: This study found that Geobacter sulfurreducens cannot directly reduce pentavalent antimony or cause its release. The results highlight the close associations between iron and antimony in environmental systems, suggesting the potential use of iron for remediation of antimony contamination.
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2023)
Article
Geochemistry & Geophysics
Dinesh Adhikari, Qian Zhao, Kamol Das, Jacqueline Mejia, Rixiang Huang, Xilong Wang, Simon R. Poulson, Yuanzhi Tang, Eric E. Roden, Yu Yang
GEOCHIMICA ET COSMOCHIMICA ACTA
(2017)
Article
Environmental Sciences
Qian Zhao, Stephen J. Callister, Allison M. Thompson, Ravi K. Kukkadapu, Malak M. Tfaily, Lisa M. Bramer, Nikolla P. Qafoku, Sheryl L. Bell, Sarah E. Hobbie, Eric W. Seabloom, Elizabeth T. Borer, Kirsten S. Hofmockel
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Soil Science
Sarrah M. Dunham-Cheatham, Qian Zhao, Daniel Obrist, Yu Yang
Article
Agronomy
Christopher P. Kasanke, Qian Zhao, Sheryl Bell, Allison M. Thompson, Kirsten S. Hofmockel
Summary: Cropping systems and soil types have significant impacts on soil carbon, but soil type has a more pronounced effect on microbial community structure and overall C chemistry. Despite the strong influence of plant inputs on decomposition substrates and SOM formation, total C and N did not differ significantly between cropping systems at the two experimental sites.
GLOBAL CHANGE BIOLOGY BIOENERGY
(2021)
Article
Soil Science
Petr Capek, Christopher P. Kasanke, Robert Starke, Qian Zhao, Karolina Tahovska
Summary: The competitive inhibition of MUB-P decay by P-PO43- and dissolved organic P was found, leading to an underestimation of potential acid phosphatase activity by up to 20%. To avoid bias, it is recommended to analyze progress curves at a wide range of initial MUB-P concentrations using non-linear methods when optimizing the enzyme assay for a given soil.
BIOLOGY AND FERTILITY OF SOILS
(2021)
Editorial Material
Soil Science
Ravi K. Kukkadapu, Qian Zhao, Nikolla P. Qafoku
SOIL SCIENCE SOCIETY OF AMERICA JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Odeta Qafoku, Amity Andersen, William R. Kew, Ravi K. Kukkadapu, Sarah D. Burton, Libor Kovarik, Qian Zhao, Sebastian T. Mergelsberg, Thomas W. Wietsma, Charles T. Resch, James J. Moran, Nikolla P. Qafoku, Mark E. Bowden
Summary: This study systematically investigates the interaction between soil organic matter (SOM) compounds and calcite using molecular dynamics and sorption experiments. The results show that fatty acids have a selective adsorption to calcite, while amino acids and lignin behavior are driven by calcite dissolution and calcium release. Carbohydrates do not adsorb to calcite.
ACS EARTH AND SPACE CHEMISTRY
(2022)
Article
Crystallography
Biao Jin, Suyun Wang, Daria Boglaienko, Zihao Zhang, Qian Zhao, Xiaoming Ma, Xin Zhang, James J. De Yoreo
Summary: Understanding the composition and structure of amorphous precursor phases is essential for designing nanomaterials with controlled shape and size. In this study, the authors report the crystallization of ZIF-8 using an amorphous ZIF solid precursor phase and demonstrate the tunable dissolution and recrystallization kinetics of the precursor to selectively fabricate different morphologies of ZIF-8. This work provides a novel approach to designing metal-organic frameworks with controlled crystal morphology.
JOURNAL OF CRYSTAL GROWTH
(2023)
Article
Biochemistry & Molecular Biology
Christopher P. Kasanke, Qian Zhao, Trinidad Alfaro, Christopher A. Walter, Sarah E. Hobbie, Tanya E. Cheeke, Kirsten S. Hofmockel
Summary: Nutrient exchange between land plants and AM fungi is based on symbiosis, and environmental factors and nutrient addition have important impacts on the distribution patterns of AM fungi. Our study found that ecosystem type, rather than nutrient treatment, is the main driver of AM fungal colonization, diversity, and community composition. This research provides evidence for the importance of long-term, large scale studies in understanding nutrient addition effects and ecological context.
Article
Chemistry, Multidisciplinary
Odeta Qafoku, Anil K. Battu, Tamas Varga, Matthew A. Marcus, Brian O'Callahan, Qian Zhao, Sebastian T. Mergelsberg, William R. Kew, John S. Loring, Nikolla P. Qafoku, Sarah I. Leichty
Summary: Environmental factors and soil properties influence the chemical composition of soil organic matter. Calcium released during calcite dissolution forms aqueous Ca-organic associations with soil organic matter, which exhibit greater stability than pristine organic mixtures. This study characterizes the structure and composition of these associations and demonstrates the presence of inorganic anions, such as (bi)carbonate, as part of these associations. The Ca-(bi)carbonate-organic associations have higher chemical stability, environmental stability, and reduced mineralization rate compared to the original organic mixtures.
ENVIRONMENTAL SCIENCE-NANO
(2023)
Article
Soil Science
Ravi K. Kukkadapu, Qian Zhao, Nikolla P. Qafoku
SOIL SCIENCE SOCIETY OF AMERICA JOURNAL
(2022)
Article
Soil Science
Qian Zhao, Sarrah Dunham-Cheatham, Dinesh Adhikari, Chunmei Chen, Aman Patel, Simon R. Poulson, Daniel Obrist, Paul S. J. Verburg, Xilong Wang, Eric R. Roden, Aaron Thompson, Yu Yang
Article
Chemistry, Multidisciplinary
Xiaopeng Huang, Qian Zhao, Robert P. Young, Xin Zhang, Eric D. Walter, Ying Chen, Elias Nakouzi, Sandra D. Taylor, John S. Loring, Zheming Wang, Kirsten S. Hofmockel, Kevin M. Rosso
ENVIRONMENTAL SCIENCE-NANO
(2020)
Article
Geochemistry & Geophysics
Qian Zhao, Dinesh Adhikari, Rixiang Huang, Aman Patel, Xilong Wang, Yuanzhi Tang, Daniel Obrist, Eric E. Roden, Yu Yang
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)
