Article
Environmental Sciences
Yanping Zhao, Songjun Wu, Miaotong Yu, Zhongqian Zhang, Xuan Wang, Siyuan Zhang, Guoxiang Wang
Summary: This study investigated seasonal variations in sediment types from different areas in a eutrophic lake in China, Lake Taihu. The findings suggest that high temperature in summer and algae accumulation facilitate reduction processes in freshwater lake sediments. Strong sulfate reduction was observed in algae accumulated areas, affecting iron cycling and phosphorus mobility, and potentially influencing eutrophication in freshwater lakes.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Microbiology
Shi Wang, Robert Walker, Marcus Schicklberger, Peter S. Nico, Patricia M. Fox, Ulas Karaoz, Romy Chakraborty, Eoin L. Brodie
Summary: Microorganisms have evolved mechanisms to mobilize and mineralize insoluble phosphorus in terrestrial ecosystems. The study found that specific bacteria, like Burkholderiaceae, are effective at solubilizing aluminum phosphate, iron phosphate, and phytate in weathered soils. The interaction between Fe and P in organic patches limits enzymatic P solubilization, indicating a major constraint on P turnover and availability in acidic soils.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Environmental Sciences
Xinxin Zhang, Xianzhong Ke, Yao Du, Yanqiu Tao, Jiangkai Xue, Qinghua Li, Xianjun Xie, Yamin Deng
Summary: The biodegradation of organic matter and the dissolution of iron oxides play important roles in the release of geogenic phosphorus to groundwater. However, the combined effects of natural organic matter and iron oxides on phosphorus mobilization are not well understood. This study investigates sediment samples from boreholes in the Central Yangtze River Basin and finds that sediments with high phosphorus levels contain more bioavailable phosphorus, particularly iron oxide bound phosphorus and organic phosphorus, compared to sediments with low phosphorus levels. The study also reveals the formation of stable phosphorus-iron-organic matter complexes that inhibit the dissolution of iron oxides and the degradation of organic matter, thereby limiting phosphorus mobilization.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Yongsheng Lu, Hui Liu, Wei Feng, Yunfeng Xu, Xueping Chen
Summary: The addition of Shewanella oneidensis MR-1 to the iron mineral-phosphorus system significantly improved phosphorus recovery, mainly due to the formation of vivianite from biogenetic Fe(II) and phosphorus. In addition, at low phosphorus doses, the phosphorus recovery rates in ferrihydrite and magnetite systems were 18.95% and 14.55%, respectively, increasing with higher phosphorus concentrations.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Engineering, Environmental
Kaiyao Hu, Wenxuan Li, Hao Mu, Shuang Ren, Hongjuan Zhu, Kexin Zeng, Bo Wang, Jinming Liang, Qi Zhang, Lili Yang, Wei Zhao, Juqiang Xiao
Summary: In this study, s-Fe0 was used as a carrier filler in an SBR reactor to remove the passivation layer on its surface by anaerobic means. The results showed that s-Fe0 is a promising material for nitrogen and phosphorus removal, and anaerobic treatment can effectively alleviate the passivation of s-Fe0.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Geography, Physical
Augusto S. Auler, Hazel A. Barton, Barbara Zambelli, John Senko, Ceth W. Parker, Ira D. Sasowsky, Tatiana A. R. Aouza, Diego Pujoni, Jorge Penaranda, Reed Davis
Summary: Iron formations, some of the oldest and most enigmatic landforms on Earth, are currently restricted to a few areas. This study aims to analyze the morphology and development of porosity in iron formations and evaluate the geobiological mechanisms responsible for iron and silica mobilization. The research reveals that the generation of pores through corrosion and the interplay of geological and bacterial processes contribute to the formation of caves and voids. However, mining activities have a significant impact on these geological processes, highlighting the need for preservation measures.
Article
Engineering, Environmental
Xiangtian Yang, Jianwei Lin, Yanhui Zhan
Summary: This study investigated the influence of aged nanoscale zero-valent iron (A-nZVI) amendment and capping on the mobilization of phosphorus from sediment to overlying water. The results showed that high A-nZVI dosage effectively reduced the release of dissolved reactive phosphorus (DRP) from sediment to overlying water under oxygen deficit conditions. Low A-nZVI dosage also had the ability to diminish the risk of DRP released from sediment into overlying water. A-nZVI capping further hindered DRP release and had higher controlling efficiency than A-nZVI amendment under oxygen deficit conditions.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Biodiversity Conservation
Zhiyang Lie, Guoyi Zhou, Wenjuan Huang, Kohmei Kadowaki, David T. Tissue, Junhua Ya, Josep Penuelas, Jordi Sardans, Yuelin Li, Shizhong Liu, Guowei Chu, Ze Meng, Xinhua He, Juxiu Liu
Summary: Phosphorus plays a crucial role in the carbon feedback to climate warming in humid tropical forests. This study conducted a 7-year continuous warming experiment and found that warming increased plant phosphorus content, indicating enhanced biological and geochemical controls on the plant-soil phosphorus cycle.
GLOBAL CHANGE BIOLOGY
(2022)
Article
Chemistry, Multidisciplinary
L. Joelle Kubeneck, Wytze K. Lenstra, Sairah Y. Malkin, Daniel J. Conley, Caroline P. Slomp
Summary: Recent studies have found that vivianite-type minerals may play a significant role in the sink for phosphorus in eutrophic coastal sediments, particularly in areas with an excess of iron. Analysis comparing the dynamics of iron and sulfur indicates that vivianite-type minerals occur at low and intermediate salinity sites, potentially influenced by the availability of metal cations.
Article
Chemistry, Physical
Zhiliang Chen, Lihang An, Hang Wei, Jianqiang Zhang, Qi Zou, Mengqiang Sun, Ling Huang, Minchao Liu
Summary: The study found that the addition of nitrate can accelerate the reduction of soil Eh, inhibit dissimilatory iron reduction, and promote arsenic speciation transformation, making it an effective amendment for arsenic immobilization in paddy soils.
SURFACES AND INTERFACES
(2021)
Article
Environmental Sciences
Chenhao Lyu, Lei Li, Xinwei Liu, Zhuqing Zhao
Summary: This study investigated the effects of straw application on the fates of selenium (Se) and cadmium (Cd) in naturally seleniferous soils contaminated with Cd. The results showed that straw application promoted iron reduction, leading to a high release of Se and Cd. Straw application decreased the concentrations of exchangeable Se and Cd during flooding, while increasing the Se/Cd ratio in soil solution, indicating increased Se bioavailability and Cd mobility.
ENVIRONMENTAL POLLUTION
(2022)
Article
Geosciences, Multidisciplinary
Minjie Hu, Jordi Sardans, Yixun Le, Yifan Wang, Josep Penuelas, Chuan Tong
Summary: This study investigated the impact of salinity gradient on phosphorus release from sediments in estuarine tidal marshes. Results showed significant variations in phosphorus concentrations along the freshwater-oligohaline transition, with a possible link to the release of iron-bonded phosphorus stimulated by sulfate reduction.
Article
Materials Science, Multidisciplinary
Xi Lan, Jintao Gao, Zushu Li, Xiang Li, Zhancheng Guo
Summary: Bayan Obo ore in Baotou China is the world's second largest niobium deposit. Due to its low niobium content and complex mineral properties, industrial mining of niobium from this ore has not been established. This study proposed an efficient pre-concentration technique of super gravity to increase the grade purity of niobium in the low-grade niobite. The research successfully achieved complete separation of niobium-rich slag and metallic iron through super gravity at low temperature, obtaining niobium slag with a grade four times higher than the initial ore and high recovery ratios of MFe and Nb2O5.
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
(2023)
Article
Environmental Sciences
Jessica R. Z. Simms
Summary: This study explores the impact of climate change on migration decisions and place stability among coastal Louisiana residents. Findings indicate that residents' decisions are context-dependent and location-specific.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2021)
Article
Environmental Sciences
Zizhen Qi, Lei Gao, Daixing Chen, Xuhao Wang, Huan Liu, Yang Yang, Yulian Zhao, Xiancai Lu
Summary: This study investigated the distribution of Fe, P, and TOC in coastal sediments from an aquaculture area in eastern Jiangsu Province, China. The results showed that Fe-carb, Fe-Py, P-CDB, Mn, and N were positively correlated with TOC, while DA + IP and OP were negatively correlated. Based on the PLS model, it was suggested that Fe-Py, Mn, Fe-Mag, Fe-carb, P-CDB, Ex-Fe, and Bio-P in sediments represent high capacity for TOC sink, while DA + IP and OP indicate a TOC conversion to the source.
FRONTIERS IN MARINE SCIENCE
(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)