Journal of Environmental Sciences-china最新文献

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Review of research advances in microbial sterilization technologies and applications in the built environment 微生物灭菌技术及其在建筑环境中的应用研究进展综述
IF 5.9 2区 环境科学与生态学
Journal of Environmental Sciences-china Pub Date : 2024-10-22 DOI: 10.1016/j.jes.2024.09.026
Xinran Zeng , Chunhui Li , Zhenhai Li , Zhizheng Tao , Mingtong Li
{"title":"Review of research advances in microbial sterilization technologies and applications in the built environment","authors":"Xinran Zeng ,&nbsp;Chunhui Li ,&nbsp;Zhenhai Li ,&nbsp;Zhizheng Tao ,&nbsp;Mingtong Li","doi":"10.1016/j.jes.2024.09.026","DOIUrl":"10.1016/j.jes.2024.09.026","url":null,"abstract":"<div><div>As globalization accelerates, microbial contamination in the built environment poses a major public health challenge. Especially since Corona Virus Disease 2019 (COVID-19), microbial sterilization technology has become a crucial research area for indoor air pollution control in order to create a hygienic and safe built environment. Based on this, the study reviews sterilization technologies in the built environment, focusing on the principles, efficiency and applicability, revealing advantages and limitations, and summarizing current research advances. Despite the efficacy of single sterilization technologies in specific environments, the corresponding side effects still exist. Thus, this review highlights the efficiency of hybrid sterilization technologies, providing an in-depth understanding of the practical application in the built environment. Also, it presents an outlook on the future direction of sterilization technology, including the development of new methods that are more efficient, energy-saving, and targeted to better address microbial contamination in the complex and changing built environment. Overall, this study provides a clear guide for selecting technologies to handle microbial contamination in different building environments in the future, as well as a scientific basis for developing more effective air quality control strategies.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"154 ","pages":"Pages 314-348"},"PeriodicalIF":5.9,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143151559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Distribution of antibiotic resistance genes on chromosomes, plasmids and phages in aerobic biofilm microbiota under antibiotic pressure 抗生素压力下好氧生物膜微生物群中抗生素抗性基因在染色体、质粒和噬菌体上的分布
IF 5.9 2区 环境科学与生态学
Journal of Environmental Sciences-china Pub Date : 2024-10-21 DOI: 10.1016/j.jes.2024.10.008
Chen Wang , Zhe Tian , Xiao Luan , Hong Zhang , Yu Zhang , Min Yang
{"title":"Distribution of antibiotic resistance genes on chromosomes, plasmids and phages in aerobic biofilm microbiota under antibiotic pressure","authors":"Chen Wang ,&nbsp;Zhe Tian ,&nbsp;Xiao Luan ,&nbsp;Hong Zhang ,&nbsp;Yu Zhang ,&nbsp;Min Yang","doi":"10.1016/j.jes.2024.10.008","DOIUrl":"10.1016/j.jes.2024.10.008","url":null,"abstract":"<div><div>The objective of this study is to quantitatively reveal the main genetic carrier of antibiotic resistance genes (ARGs) for blocking their environmental dissemination. The distribution of ARGs in chromosomes, plasmids, and phages for understanding their respective contributions to the development of antimicrobial resistance in aerobic biofilm consortium under increasing stresses of oxytetracycline, streptomycin, and tigecycline were revealed based on metagenomics analysis. Results showed that the plasmids harbored 49.2 %-83.9 % of resistomes, which was higher (<em>p</em> &lt; 0.001) than chromosomes (2.0 %-35.6 %), and no ARGs were detected in phage contigs under the strict alignment standard of over 80 % identity used in this study. Plasmids and chromosomes tended to encode different types of ARGs, whose abundances all increased with the hike of antibiotic concentrations, and the variety of ARGs encoded by plasmids (14 types and 64 subtypes) was higher than that (11 types and 27 subtypes) of chromosomes. The dosing of the three antibiotics facilitated the transposition and recombination of ARGs on plasmids, mediated by transposable and integrable transfer elements, which increased the co-occurrence of associated and unassociated ARGs. The results quantitatively proved that plasmids dominate the proliferation of ARGs in aerobic biofilm driven by antibiotic selection, which should be a key target for blocking ARG dissemination.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"156 ","pages":"Pages 647-659"},"PeriodicalIF":5.9,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143807548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exposure to plasticizers in city waste recycling: Focused on the size-fractioned particulate-bound phthalates and bisphenols 城市垃圾回收中增塑剂的暴露:重点关注大小分级颗粒结合的邻苯二甲酸盐和双酚
IF 5.9 2区 环境科学与生态学
Journal of Environmental Sciences-china Pub Date : 2024-10-21 DOI: 10.1016/j.jes.2024.10.012
Ting-Ting Xu , Ying-Jie Zhang , Jing-Feng Yi , Cui-Lan Bai , Ying Guo
{"title":"Exposure to plasticizers in city waste recycling: Focused on the size-fractioned particulate-bound phthalates and bisphenols","authors":"Ting-Ting Xu ,&nbsp;Ying-Jie Zhang ,&nbsp;Jing-Feng Yi ,&nbsp;Cui-Lan Bai ,&nbsp;Ying Guo","doi":"10.1016/j.jes.2024.10.012","DOIUrl":"10.1016/j.jes.2024.10.012","url":null,"abstract":"<div><div>Phthalate (PAEs) and Bisphenols (BPs) are plasticizers or additives in consumer products. They are typical endocrine disruptors, and potential health hazards may occur when people are exposed to them through inhalation, ingestion, and dermal contact. The current research on inhalation exposure pays limited attention to the particle distribution of PAEs and BPs in air, although particulate-bound pollutants are usually size-dependent. In this study, we discussed the size resolution of PAEs and BPs in air particles from city waste recycling plants. With paired urine samples of the workers, we also compared the internal and external exposure of PAEs and BPs and related potential health risks. The particulate-bound PAEs and BPs concentrated mainly on coarse particles (<em>D</em>p &gt; 2.1 µm), with a bimodal distribution, and the peak particle size ranged from 9–10 to 4.7–5.85 µm, respectively. Model calculation revealed that the deposition fluxes of PAEs in different respiratory regions followed the sequence of head airways (167±92.8 ng/h) &gt; alveolar region (18.9 ± 9.96 ng/h) &gt; tracheobronchial region (9.20±5.22 ng/h), and the similar trends went for BPs. The daily intakes of PAEs and BPs via dust ingestion were higher than those from respiratory inhalation and dermal contact, with mean value of 96 and 0.88 ng/(kg-bw day), respectively. For internal exposure, the estimated daily intakes of PAEs for waste recycling workers were higher than those in e-waste dismantling workers, while the exposure levels of bisphenols were comparable. Overall, the potential health risks from inhalation exposure to particulate-bound PAEs and BPs were low.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"155 ","pages":"Pages 454-465"},"PeriodicalIF":5.9,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143428813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nano-sized titanium dioxide exposure induces non-hyperandrogenic polycystic ovarian syndrome in rats by increasing aromatase and apoptosis in granulosa cells 纳米二氧化钛暴露通过增加颗粒细胞的芳香化酶和凋亡诱导大鼠非高雄激素性多囊卵巢综合征
IF 5.9 2区 环境科学与生态学
Journal of Environmental Sciences-china Pub Date : 2024-10-21 DOI: 10.1016/j.jes.2024.10.009
Weidong Zhou , Wenjing Zhang , Zhineng Fu , Chen Tang , Pengtao Chen , Ruofan Huang , Chunyan Yang , Shuzhen Chen , Zhenghong Zuo , Qionghua Chen , Mingyue Chen , Chengyong He
{"title":"Nano-sized titanium dioxide exposure induces non-hyperandrogenic polycystic ovarian syndrome in rats by increasing aromatase and apoptosis in granulosa cells","authors":"Weidong Zhou ,&nbsp;Wenjing Zhang ,&nbsp;Zhineng Fu ,&nbsp;Chen Tang ,&nbsp;Pengtao Chen ,&nbsp;Ruofan Huang ,&nbsp;Chunyan Yang ,&nbsp;Shuzhen Chen ,&nbsp;Zhenghong Zuo ,&nbsp;Qionghua Chen ,&nbsp;Mingyue Chen ,&nbsp;Chengyong He","doi":"10.1016/j.jes.2024.10.009","DOIUrl":"10.1016/j.jes.2024.10.009","url":null,"abstract":"<div><div>Polycystic ovarian syndrome (PCOS) is a frequently encountered disease with hormonal and metabolic dysfunction in women of reproductive age. Nano-sized titanium dioxide (nTiO<sub>2</sub>) has been widely used in skin care products, paints, food, and cosmetics. In this study, we found a substantial elevation of Ti in the follicular fluid of females diagnosed with non-hyperandrogenic PCOS (non-HA PCOS). Therefore, we orally subjected female rats to nTiO<sub>2</sub> at 10 and 100 mg/kg body weight for 10 weeks. We found that nTiO<sub>2</sub> triggered non-HA PCOS-like symptoms, including the increase of cystic follicles, estrous cycle disorder, and abnormal ovulation, but without high testosterone. By transcriptome sequencing, we identified that nTiO<sub>2</sub> exposure inhibited the steroid hormone synthesis and activated the pro-apoptotic pathways. Upon validating these altered pathways, we discovered that aromatase (Cyp19a1) overexpression contributed to the decline in testosterone/estradiol ratio. Meanwhile, the apoptosis of granulosa cells was increased by nTiO<sub>2</sub> exposure, which might result in the disorder of follicular development. This study presents the evidences revealing a pronounced correlation between nTiO<sub>2</sub> exposure and the emergence of non-HA PCOS, urging people to promote the safe utilization of nTiO<sub>2</sub>.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"156 ","pages":"Pages 632-646"},"PeriodicalIF":5.9,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143799972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Microbial inoculants modify the functions of soil microbes to optimize plant growth at abandoned mine sites 微生物接种剂可以改变土壤微生物的功能,以优化废弃矿区的植物生长
IF 5.9 2区 环境科学与生态学
Journal of Environmental Sciences-china Pub Date : 2024-10-18 DOI: 10.1016/j.jes.2024.10.002
Zhaohui Jia , Chong Li , Shuifeng Zhang , Yingzhou Tang , Shilin Ma , Xin Liu , Jinchi Zhang
{"title":"Microbial inoculants modify the functions of soil microbes to optimize plant growth at abandoned mine sites","authors":"Zhaohui Jia ,&nbsp;Chong Li ,&nbsp;Shuifeng Zhang ,&nbsp;Yingzhou Tang ,&nbsp;Shilin Ma ,&nbsp;Xin Liu ,&nbsp;Jinchi Zhang","doi":"10.1016/j.jes.2024.10.002","DOIUrl":"10.1016/j.jes.2024.10.002","url":null,"abstract":"<div><div>Mining activities have caused significant land degradation globally, emphasizing the need for effective restoration. Microbial inoculants offer a promising solution for sustainable remediation by enhancing soil nutrients, enzyme activities, and microbial communities to support plant growth. However, the mechanisms by which inoculants influence soil microbes and their relationship with plant growth require further investigation. Metagenomic sequencing was employed for this study, based on a one-year greenhouse experiment, to elucidate the effects of <em>Bacillus thuringiensis</em> NL-11 on the microbial functions of abandoned mine soils. Our findings revealed that the application of microbial inoculants significantly enhanced the soil total carbon (TC), total sulfur (TS), organic carbon (SOC), available phosphorus (AP), ammonium (NH<sub>4</sub><sup>+</sup>), urease, arylsulfatase, phosphatase, β-1,4-glucosidase (BG), β-1,4-N-acetylglucosaminidase (NAG). Moreover, this led to substantial improvements in plant height, as well as aboveground and belowground biomass. Microbial inoculants impacted functional gene structures without altering diversity. The normalized abundance of genes related to the degradation of carbon and nitrogen, methane metabolism, and nitrogen fixation were observed to increase, as well as the functional genes related to phosphorus cycling. Significant correlations were found between nutrient cycling gene abundance and plant biomass. Partial Least Squares Path Model analysis showed that microbial inoculants not only directly influenced plant biomass but also indirectly affected the plant biomass through C cycle modifications. This study highlights the role of microbial inoculants in promoting plant growth and soil restoration by improving soil properties and enhancing normalized abundance of nutrient cycling gene, making them essential for the recovery of abandoned mine sites.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"154 ","pages":"Pages 678-690"},"PeriodicalIF":5.9,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143152113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of La2-xCexO2CO3 solid solution for low-concentration phosphate removal and recovery: manipulating Ce ratio and valence to boost phosphate capture 用于低浓度磷酸盐去除和回收的La2-xCexO2CO3固溶体的开发:控制Ce比和价以促进磷酸盐捕获
IF 5.9 2区 环境科学与生态学
Journal of Environmental Sciences-china Pub Date : 2024-10-18 DOI: 10.1016/j.jes.2024.10.006
Jingzhang Liu , Lei Bi , Xinzong Xiao , Wenzhong Tang , Qiong Wang , Mei Du , Maoyong Song
{"title":"Development of La2-xCexO2CO3 solid solution for low-concentration phosphate removal and recovery: manipulating Ce ratio and valence to boost phosphate capture","authors":"Jingzhang Liu ,&nbsp;Lei Bi ,&nbsp;Xinzong Xiao ,&nbsp;Wenzhong Tang ,&nbsp;Qiong Wang ,&nbsp;Mei Du ,&nbsp;Maoyong Song","doi":"10.1016/j.jes.2024.10.006","DOIUrl":"10.1016/j.jes.2024.10.006","url":null,"abstract":"<div><div>The removal and recovery of low-concentration phosphates from water have become crucial due to the dual challenges of eutrophication and the phosphorus crisis. Herein, we engineered a highly efficient and recyclable phosphate trapping agent of La<sub>2-</sub><em><sub>x</sub></em>Ce<em><sub>x</sub></em>O<sub>2</sub>CO<sub>3</sub> solid solution. The incorporation of Ce enhances the surface area and surface potential of La<sub>2-</sub><em><sub>x</sub></em>Ce<em><sub>x</sub></em>O<sub>2</sub>CO<sub>3</sub>, providing abundant adsorption sites for phosphate. Surprisingly, we found that adjusting the Ce proportion affects the carbonate content, thereby influencing the anion-exchange capacity between carbonate and phosphate. Specifically, at 3 % Ce content (3 %-CeL), the carbonate ratio is maximized, resulting in an optimal sorption capacity (196.4 mg P/g) and a rapid removal rate (under 40 min) for phosphate, unaffected by interfering ions. Remarkably, 3 %-CeL achieved nearly 100 % phosphate removal efficiency in diverse water samples from sewage treatment plants, rivers, reservoirs, and groundwater. After five adsorption-desorption cycles, the phosphate removal and recovery efficiency of 3 %-CeL remained above 90 %. Mechanistic studies revealed that 3 % Ce content yielded the highest proportion of Ce<sup>4+</sup>/Ce<sup>3+</sup>, enabling greater carbonate binding for anion-exchange. This study proposes a high-performance phosphate trapping agent with broad applicability for treating actual waters and provides a new perspective on enhancing low-concentration phosphate removal in La-based materials through manipulating Ce ratio and valence.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"156 ","pages":"Pages 213-224"},"PeriodicalIF":5.9,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143641858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Phosphate perils in marine aquaculture: Systematic toxicity assessment in turbot juveniles in cultivation 海洋水产养殖中的磷酸盐危害:养殖中大菱鲆幼鱼的系统毒性评价
IF 5.9 2区 环境科学与生态学
Journal of Environmental Sciences-china Pub Date : 2024-10-18 DOI: 10.1016/j.jes.2024.10.005
Lele Wu , Xin Li , Jiale Zhou , Ting Qi , Yaolin Li , Xiefa Song , Zongcheng Song , Xian Li
{"title":"Phosphate perils in marine aquaculture: Systematic toxicity assessment in turbot juveniles in cultivation","authors":"Lele Wu ,&nbsp;Xin Li ,&nbsp;Jiale Zhou ,&nbsp;Ting Qi ,&nbsp;Yaolin Li ,&nbsp;Xiefa Song ,&nbsp;Zongcheng Song ,&nbsp;Xian Li","doi":"10.1016/j.jes.2024.10.005","DOIUrl":"10.1016/j.jes.2024.10.005","url":null,"abstract":"<div><div>Recirculating Aquaculture Systems (RAS) aim to minimize water usage while maintaining optimal conditions for aquatic organisms, which is increasingly recognized as a crucial strategy for advancing sustainable aquaculture practices and enhancing global food security. However, many current marine RAS lack efficient treatments for removing dissolved wastes like phosphates (PO<sub>4</sub><sup>3−</sup>-P), impacting water quality and potentially affecting the health of cultured organisms. Here, juveniles of turbot (<em>Scophthalmus maximus</em>), a promising and growing marine culture species, were exposed to PO<sub>4</sub><sup>3−</sup>-P at different concentrations for 60 days to evaluate systematic responses and toxicity mechanisms. The juveniles adapted to 60 mg/L PO<sub>4</sub><sup>3−</sup>-P by enhancing tissue repair activity in gill tissue via upregulation of Hedgehog and Wnt signaling pathways. Histological and molecular data indicated physiological damages and cell apoptosis in the gill tissue exposed to 120 mg/L PO<sub>4</sub><sup>3−</sup>-P. Liver and spleen tissue damages were also observed in the 120 mg/L PO<sub>4</sub><sup>3−</sup>-P group, and elevated levels of plasma alanine aminotransferase, aspartate aminotransferase, and alkaline phosphatase suggested potential impairments in both hepatic and immune functions. The oxidative stress responses, including upregulation of antioxidant genes and reduced enzyme activity, could be responsible for the damage of multiple tissues and systematic toxicity. These findings contribute new insights into the toxicity of PO<sub>4</sub><sup>3−</sup>-P in fish and provide a theoretical basis for the necessity of PO<sub>4</sub><sup>3−</sup>-P monitoring and removal technology research in marine aquaculture systems.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"156 ","pages":"Pages 619-631"},"PeriodicalIF":5.9,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143792581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research progress on coupling and stacking systems to enhance power generation performance of microbial fuel cell 耦合堆叠系统提高微生物燃料电池发电性能的研究进展
IF 5.9 2区 环境科学与生态学
Journal of Environmental Sciences-china Pub Date : 2024-10-16 DOI: 10.1016/j.jes.2024.10.003
Xueyao Shi , Duowen Yang , Shanshan Li , Kedi Yu , Wei Yan , Hao Xu
{"title":"Research progress on coupling and stacking systems to enhance power generation performance of microbial fuel cell","authors":"Xueyao Shi ,&nbsp;Duowen Yang ,&nbsp;Shanshan Li ,&nbsp;Kedi Yu ,&nbsp;Wei Yan ,&nbsp;Hao Xu","doi":"10.1016/j.jes.2024.10.003","DOIUrl":"10.1016/j.jes.2024.10.003","url":null,"abstract":"<div><div>Microbial fuel cells (MFCs) face significant challenges related to low power output, which severely limits their practical applications. Coupling MFC with other technologies and stacking MFCs are feasible solutions to enhance power output. In recent years, the coupling and stacking technology of MFCs has become a research hotspot in the field of environmental energy. This paper first outlines the basic configurations of MFCs and then analyzes the advantages and disadvantages of different setups in the context of coupling and stacking. Subsequently, it discusses in detail the coupling systems of MFC with other technologies, as well as several configurations of stacked MFCs and the phenomenon of voltage reversal. Based on these investigations, the paper proposes future research directions aimed at optimizing MFC performance, thereby enhancing their potential for energy recovery from wastewater and supporting the commercialization and scaling of MFC technology.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"154 ","pages":"Pages 784-804"},"PeriodicalIF":5.9,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143152745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
How does the coupled action of freeze-thaw and acidification affect the release of toxic elements from indigenous Zn smelting slags? 冻融和酸化的耦合作用如何影响原生锌冶炼渣中有毒元素的释放?
IF 5.9 2区 环境科学与生态学
Journal of Environmental Sciences-china Pub Date : 2024-10-11 DOI: 10.1016/j.jes.2024.09.030
Damao Xu , Caihong Gao , Baihong An , Tianpeng Hu , Lai Zhou , Xueqiang Zhu , Qingjun Meng , Rongbing Fu
{"title":"How does the coupled action of freeze-thaw and acidification affect the release of toxic elements from indigenous Zn smelting slags?","authors":"Damao Xu ,&nbsp;Caihong Gao ,&nbsp;Baihong An ,&nbsp;Tianpeng Hu ,&nbsp;Lai Zhou ,&nbsp;Xueqiang Zhu ,&nbsp;Qingjun Meng ,&nbsp;Rongbing Fu","doi":"10.1016/j.jes.2024.09.030","DOIUrl":"10.1016/j.jes.2024.09.030","url":null,"abstract":"<div><div>Under complicated field conditions, such as the coupled effects of freeze - thaw cycles (FTs) and acidification, the leaching behavior of potentially toxic element (PTEs) from indigenous Zn smelting slags (ZSS) was intricately connected to the mineralogy (e.g., the composition, assemblage, microstructure of mineral particles). In this study, FTs tests were carried out to explore the interactions between PTEs release and ZSS mineralogy. Subsequently, advanced characterization techniques were adopted to quantify the mineralogy and microstructure of ZSS. The results indicated that ZSS were mainly composed of silicate minerals (e.g., quartz, biotite and chlorite) and secondary Fe (III) oxyhydroxides (e.g., magnetite and limonite), accounting for 67.48% and 24.23%, respectively. The occurrence mode analysis revealed that 81.95% of As, 21.31% of Pb and 7.77% of Zn were hosted in limonite. About 37.89%, 59.34% and 34.50% of Cd, Pb and Zn were associated with carbonate bound fractions. Under FTs interacting with different pH conditions, the leaching concentrations of As, Cd, Cu, Pb and Zn did not significantly increase with the increase in FTs and pH. The microstructure damage of mineral particles in ZSS with the higher porosity was caused by both FTs and proton corrosion. More importantly, the geochemical modeling results suggested that the precipitation of hematite and magnetite, as well as the dissolution of arsenolite, might have little impacts on PTEs release under FTs and FTs with acidification. This work would provide a deeper understanding of PTEs release from smelting waste slags under complex physicochemical interactions.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"156 ","pages":"Pages 506-518"},"PeriodicalIF":5.9,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143777546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
PM2.5 concentration prediction algorithm integrating traffic congestion index 基于交通拥堵指数的PM2.5浓度预测算法
IF 5.9 2区 环境科学与生态学
Journal of Environmental Sciences-china Pub Date : 2024-10-10 DOI: 10.1016/j.jes.2024.09.029
Yong Fang , Shicheng Zhang , Keyong Yu , Jingjing Gao , Xinghua Liu , Can Cui , Juntao Hu
{"title":"PM2.5 concentration prediction algorithm integrating traffic congestion index","authors":"Yong Fang ,&nbsp;Shicheng Zhang ,&nbsp;Keyong Yu ,&nbsp;Jingjing Gao ,&nbsp;Xinghua Liu ,&nbsp;Can Cui ,&nbsp;Juntao Hu","doi":"10.1016/j.jes.2024.09.029","DOIUrl":"10.1016/j.jes.2024.09.029","url":null,"abstract":"<div><div>In this study, a strategy is proposed to use the congestion index as a new input feature. This approach can reveal more deeply the complex effects of traffic conditions on variations in particulate matter (PM<sub>2.5</sub>) concentrations. To assess the effectiveness of this strategy, we conducted an ablation experiment on the congestion index and implemented a multi-scale input model. Compared with conventional models, the strategy reduces the root mean square error (<em>RMSE</em>) of all benchmark models by &gt; 6.07 % on average, and the best-performing model reduces it by 12.06 %, demonstrating excellent performance improvement. In addition, even with high traffic emissions, the <em>RMSE</em> during peak hours is still below 9.83 µg/m<sup>3</sup>, which proves the effectiveness of the strategy by effectively addressing pollution hotspots. This study provides new ideas for improving urban environmental quality and public health and anticipates inspiring further research in this domain.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"155 ","pages":"Pages 359-371"},"PeriodicalIF":5.9,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143351174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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