Article
Engineering, Environmental
Sungmoon Yoon, Duk-Min Kim, Soonyoung Yu, Juhyun Park, Seong-Taek Yun
Summary: This study investigates the impact of tailings from gold mining on soil contamination near a river, and finds that the contamination levels are affected by the application of mercury, the discharge of light and heavy minerals, and mismanagement or spills of mercury. The distribution of soil contaminants is controlled by the specific gravity of minerals discharged to the environment, ore processing stages, and insufficient recovery and/or spills of mercury.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Peng Fan, Xinwei Lu, Bo Yu, Xinyao Fan, Lingqing Wang, Kai Lei, Yufan Yang, Ling Zuo, Joerg Rinklebe
Summary: This study investigates the sources and contamination levels of potentially toxic metal(loid)s in resuspended street dust from a megacity in north China. The results show that the levels of Zn, As, Pb, Cu, Co, and Hg in the dust exceed those in local soil samples, while Cr, Mn, and Ni levels are lower. Traffic emissions and coal-related industries are identified as the main sources of contamination.
ENVIRONMENT INTERNATIONAL
(2022)
Article
Multidisciplinary Sciences
Huaming Du, Xinwei Lu
Summary: This study investigated the spatial distributions and sources of commonly concerned heavy metals in the topsoil of Mianyang city, a typical emerging industrial city in Southwest China. The results showed that industrial activities were the main reason for the elevated levels of heavy metals in the soil.
SCIENTIFIC REPORTS
(2022)
Article
Engineering, Environmental
Jiaqing Zeng, Xinghua Luo, Yizhi Cheng, Wenshun Ke, William Hartley, Chuxuan Li, Jun Jiang, Feng Zhu, Shengguo Xue
Summary: A comprehensive study was conducted on an abandoned zinc smelting site in Southern China to determine contamination characteristics and spatial distribution patterns of toxic metal(loid)s in soils. The study found that soil environmental quality was seriously threatened by Cd, Zn, As, Pb, and Hg contaminants, with strong spatial heterogeneity in their distribution. The study also showed that the pollutants mainly concentrated in fill layers, with different contaminants exhibiting varying migration depths and spatial variability.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Multidisciplinary Sciences
Cang Gong, Haichuan Lu, Zhixiang Zhang, Liang Wang, Xiang Xia, Lihua Wang, Zhiyu Xiang, Linyang Shuai, Yang Ding, Yong Chen, Shunxiang Wang
Summary: This study investigates the spatial distribution characteristics and differences of heavy metal(loid)s health risks in soil on a town scale. Results show that most of the health risks are within the acceptable range, but certain risks exceed the acceptable range for children. There are significant spatial differences in health risks among different regions.
SCIENTIFIC REPORTS
(2022)
Article
Engineering, Environmental
M. Azizi, A. Faz, R. Zornoza, S. Martinez-Martinez, V. Shahrokh, J. A. Acosta
Summary: This study evaluated the distribution, relationship, and pollution of metal(loid)s and rare earth elements (REEs) in mine tailings. The results showed high concentrations of these elements, with some exceeding soil contamination limits. The acidity of the waste materials decreased with increasing depth, resulting in precipitation and reduced mobility of the studied elements. Multivariate analysis proved to be a useful tool for identifying the sources of heavy metals and REEs in the mining waste.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Environmental Sciences
Hui Zheng, Qiang Ren, Kaixuan Zheng, Zhikai Qin, Yangyang Wang, Yuguang Wang
Summary: The study collected 74 surface sediment samples from the Arctic Ocean and Bering Sea to analyze the content of metal(loid)s (As, Cu, Cd, Ni, Pb, Zn and Cr) and their relationship with pH and watersoluble organic carbon content. The results showed that most of the metal(loid)s hotspots were found in the Beaufort Sea region, with Cd being the most contaminated metal. The ecological risk assessment revealed low risks for As, Cu, Ni, Pb, Zn and Cr, except for Cd.
MARINE POLLUTION BULLETIN
(2022)
Article
Multidisciplinary Sciences
Iosu Paradinas, Janine Illian, Sophie Smout, Judi Hewitt
Summary: Species Distribution Models often include spatial effects that improve predictions and reduce errors. However, interpreting spatial patterns becomes difficult due to the presence of unidentified drivers. This study demonstrates that spatial effects can smooth out the effects of multiple unaccounted drivers.
Article
Engineering, Environmental
Qiang Huang, Ye Huang, Bao Li, Xiutong Li, Yuan Guo, Zhen Jiang, Xiaoling Liu, Zhenni Yang, Zengping Ning, Tangfu Xiao, Chengying Jiang, Likai Hao
Summary: Contaminations caused by mine activities can lead to the co-selection of antibiotic resistance genes (ARGs) and heavy metal(loid) resistance genes (MRGs). This study found that the resistome of a coal source acid mine drainage passive treatment system was dominated by multidrug efflux mechanisms and a diverse heavy metal(loid) resistome. The presence of potential pathogens carrying multiple resistance genes may increase the risk of ARG dissemination in the environment.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Ping Wang, Xiangke Kong, Lisha Ma, Shizhong Wang, Wei Zhang, Le Song, Hui Li, Yanyan Wang, Zhantao Han
Summary: Iron-based materials have high surface reactivity and potential for remediating metal (loid)s in groundwater. However, their limited structural stability and economic feasibility hinder their application in permeable reactive barrier (PRB) technology. In this study, zeolite-supported iron particles (Zeo-Fe) were synthesized through a low-cost physical method, leading to efficient removal of metal (loid)s.
ENVIRONMENTAL POLLUTION
(2022)
Article
Chemistry, Physical
Qibing Liu, Genlian Fan, Zhanqiu Tan, Farhad Saba, Qiang Guo, Dingbang Xiong, Yishi Su, Zhiqiang Li, Di Zhang
Summary: This study investigates the spatial distribution of carbon nanotubes (CNTs) in an aluminum matrix and reveals that the length-scale, thermal activation, and external applied stress play important roles in controlling the location of CNTs. The results demonstrate that long CNTs are mainly located at the grain boundaries, while short CNTs enter the grain interiors with the synergy of thermal activation and external applied stress. The understanding of these mechanisms provides valuable insights for achieving precise control over the distribution of CNTs in composites.
Article
Environmental Sciences
Jiawei Liu, Hou Kang, Wendong Tao, Hanyu Li, Dan He, Lixia Ma, Haojie Tang, Siqi Wu, Kexin Yang, Xuxiang Li
Summary: With the rapid development of urbanization, heavy metal pollution in soil has become a significant concern due to its potential harm to human health. This study introduced a spatial distribution-principal component analysis model to assess soil pollution and identify potential sources of heavy metals more effectively. The research findings revealed that agricultural activities were the main contributor to soil pollution, followed by traffic and natural pollution sources. The ability of this model to track multi-source soil pollution of heavy metals has important practical significance for its assessment and control.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Mojtaba Adeli, Zargham Mohammadi, Behnam Keshavarzi, Keyvan Amjadian, Masoud Kafi
Summary: Groundwater composition in mining areas is affected by the oxidation of sulfide minerals. Physicochemical studies indicated that the main cations and anions in the Miduk copper mine area are calcium and sulfate, respectively. Pollution indices showed that samples close to the mine pit had the highest pollution level, suggesting an anthropogenic source for heavy metal(loid)s in the groundwater.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Engineering, Chemical
Chiamaka Belsonia Opara, Rosie Blannin, Doreen Ebert, Max Frenzel, Katrin Pollmann, Sabine Kutschke
Summary: This study developed a synchronized method for bioleaching valuable and hazardous metal(loid)s from sulfidic mine waste samples using a novel acidophilic consortium. The results showed that bioleaching could efficiently leach many metals within a short period of time, but some metals such as copper had poor leaching efficiency. Additionally, bioleaching resulted in the formation of secondary minerals.
MINERALS ENGINEERING
(2022)
Article
Environmental Sciences
Jian-li Liu, Jun Yao, De-liang Zhou, Bang Liu, Houquan Liu, Miaomiao Li, Chenchen Zhao, Geoffrey Sunahara, Robert Duran
Summary: Management of tailings at metal mine smelter sites can reduce potential hazards associated with exposure to toxic metals and organic flotation reagents. Microbes in tailings harboring multidrug-resistant genes can cause high rates of morbidity and global economic problems. The potential co-selection mechanisms of antibiotic resistance genes and metal resistance genes during tailings sulfate-reducing bacteria treatment have been poorly investigated.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Shun-Shun Chen, Xu-Xiu Chen, Tian-Yu Yang, Li Chen, Zheng Guo, Xing-Jiu Huang
Summary: A temperature-modulated sensing strategy was proposed to identify and determine BTEX compounds. Highly effective identification of BTEX was achieved using linear discrimination and convolutional neural network analyses. Additionally, quantitative analysis of concentration was accomplished by establishing the relationship between concentration and response.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Myungkyung Noh, Jeong Yeon Sim, Jisung Kim, Jee Hwan Ahn, Hye-Young Min, Jong-Uk Lee, Jong-Sook Park, Ji Yun Jeong, Jae Young Lee, Shin Yup Lee, Hyo-Jong Lee, Choon-Sik Park, Ho-Young Lee
Summary: This study reveals that chronic exposure to PM induces chronic inflammation and development of COPD by dysregulating NAD+ metabolism and subsequent SIRT1 deficiency in pulmonary macrophages. Activation of SIRT1 by resveratrol effectively mitigates PM-induced inflammation and COPD development. Targeting metabolic and epigenetic reprogramming in macrophages induced by PM is a promising strategy for COPD treatment.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yu Liu, Linlin Qin, Yiming Qin, Tong Yang, Haoran Lu, Yulong Liu, Qiqi Zhang, Wenyan Liang
Summary: Co/NC/PAC electrode was prepared by compounding ZIF-67 with powder-activated carbon for the electrocatalytic treatment of nitrogen-containing heterocyclic compounds. The degradation efficiency of the four compounds reached 90.2-93.7% under optimal conditions, and the degradation order was pyridazine < pyrimidine < pyrazine < pyridine.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Julien Couturier, Pierre Tamba Oulare, Blanche Collin, Claire Lallemand, Isabelle Kieffer, Julien Longerey, Perrine Chaurand, Jerome Rose, Daniel Borschneck, Bernard Angeletti, Steven Criquet, Renaud Podor, Hamed Pourkhorsandi, Guilhem Arrachart, Clement Levard
Summary: This study analyzes the properties of bauxite residue samples and explores the influence of bauxite ore origin, storage conditions, and storage time. The results show that the speciation of yttrium is related to the origin of bauxite ore, while no significant variation was observed with storage conditions or aging of the residues.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Sakthinarenderan Saikumar, Ravi Mani, Mirunalini Ganesan, Inbakandan Dhinakarasamy, Thavamani Palanisami, Dharani Gopal
Summary: Microplastic contamination in marine ecosystems poses a growing concern due to its trophic transfer and negative effects on marine organisms. This study investigates the transfer and impacts of polystyrene microplastics in an estuarine food chain. The results show that microplastics can be transferred through the food chain, although the transfer rates are low. The exposed organisms exhibit stress responses, suggesting the potential risk of microplastics reaching humans through the food chain.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Review
Engineering, Environmental
Yan-Jiao Li, Ying Yuan, Wen-Bing Tan, Bei-Dou Xi, Hui Wang, Kun-Long Hui, Jia-Bao Chen, Yi-Fan Zhang, Lian-Feng Wang, Ren-Fei Li
Summary: This review investigated and analyzed the distribution, composition, and abundance of heavy metals and antibiotic resistance genes (ARGs) in landfill. The results showed that heavy metals have lasting effects on ARGs, and complexes of heavy metals and organic matter are common in landfill. This study provides a new basis to better understand the horizontal gene transfer (HGT) of ARGs in landfill.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Jessy Joseph, Ari Vaisanen, Ajay B. Patil, Manu Lahtinen
Summary: Efficient and environmentally friendly porous hybrid adsorbent beads have been developed for the removal of arsenic from drinking water. The structural tuning of the adsorbents has been shown to have a significant impact on their adsorption performance, with high crystallinity leading to increased adsorption capacity and selectivity towards As5+.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yangyang Liu, Minhua Xiao, Kaiqin Huang, Juntao Cui, Hongli Liu, Yingxin Yu, Shengtao Ma, Xihong Liu, Meiqing Lin
Summary: This study measured the levels of phthalate metabolites in breast milk collected from mothers in southern China. The results showed that phthalates are still prevalent in the region, and breastfeeding contributes to phthalate intake in infants. However, the levels detected do not pose significant health risks to infants based on dietary exposure. The increasing exposure to certain phthalates calls for further research into their sources and potential risks.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhiqiang Wu, Jianxing Sun, Liting Xu, Hongbo Zhou, Haina Cheng, Zhu Chen, Yuguang Wang, Jichao Yang
Summary: Ocean depth affects microbial diversity, composition, and co-occurrence patterns of microplastic microbial communities. Deterministic processes dominate the assembly of mesopelagic plastisphere microbial communities, while stochastic processes shape the assembly of bathypelagic microbial communities. The relationships between microorganisms in the mesopelagic layer are more complex and stable, with Proteobacteria and Actinobacteriota playing important roles.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Tingting Xiao, Renjie Chen, Chen Cai, Shijie Yuan, Xiaohu Dai, Bin Dong, Zuxin Xu
Summary: Based on the efficiency of catalytic ozonation techniques in enhancing sludge dewaterability, this study investigated its effectiveness in simultaneous reduction of antibiotics and antibiotic resistance genes. The results showed that catalytic ozonation conditioning changed the distribution of antibiotics and achieved high degradation rates. It also significantly reduced the abundance of ARGs, inhibited horizontal gene transfer, and decreased the signal transduction of typical ARGs host bacteria.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yang Deng, Xiaohong Guan
Summary: This article discusses two different development approaches for ferrate(VI) technology in water treatment, arguing that process integration is a promising method that can drive technological innovation and revolution in water treatment, achieving higher treatment efficiency, reduced costs and energy consumption, and a smaller physical footprint.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhe Zhang, Lu Zhang, Zhihao Huang, Yuxin Xu, Qingqing Zhao, Hongju Wang, Meiqing Shi, Xiangnan Li, Kai Jiang, Dapeng Wu
Summary: In this study, a floating catalytic foam was designed and prepared to enhance the mass transfer in immobilized photocatalysts for wastewater treatment. The floating catalytic foam could float on the water surface and establish a temperature gradient, effectively promoting the diffusion and adsorption of target molecules during the photocatalytic process.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Muhammad Nafees, Adiba Khan Sehrish, Sarah Owdah Alomrani, Linlin Qiu, Aasim Saeed, Shoaib Ahmad, Shafaqat Ali, Hongyan Guo
Summary: The accumulation of cadmium and antibiotics in edible plants and fertile soil is a worldwide problem. This study investigated the potential of zinc oxide nanoparticles to alleviate the toxicity of both cadmium and antibiotics and promote spinach growth.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Lurui Wan, Kai Wang, Yuan Chen, Zhiyong Xu, Wenbo Zhao
Summary: In this study, a low viscosity and high thermal stability SO2 absorbent with dual interacting sites was successfully synthesized. The absorbent showed the highest absorption enthalpy change and entropy change values among reported SO2 absorbents, and exhibited lower viscosity and comparable thermal stability to ILs.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhengwei Zhou, Guojie Ye, Yang Zong, Zhenyu Zhao, Deli Wu
Summary: This study utilized Mo powder and STPP to enhance the performance of the sodium percarbonate system in pollutant degradation. The presence of Mo and STPP resulted in a higher degradation rate of the model pollutant SMX, with low oxidant consumption. The system generated multiple active species through a series of chain reactions at different pH values, exhibiting excellent performance towards electron-rich pollutants. Furthermore, Mo demonstrated excellent stability and reusability.
JOURNAL OF HAZARDOUS MATERIALS
(2024)