Journal of Environmental Sciences-china最新文献

{"title":"Distribution and imbalance of basic research funding in environmental chemistry in China","authors":"Weiyi Wang ,&nbsp;Qian Liu ,&nbsp;Guibin Jiang ,&nbsp;Qiankun Zhuang","doi":"10.1016/j.jes.2025.01.017","DOIUrl":"10.1016/j.jes.2025.01.017","url":null,"abstract":"<div><div>This study investigates the distribution and imbalances of research funding in the field of Environmental Chemistry, utilizing application and funding data from the National Natural Science Foundation of China (NSFC) over the past decade. The findings reveal significant regional disparities, with Eastern regions receiving over 70 % of the national funding, while the Northeast accounts for only 4 % to 6.5 %. Additionally, the analysis shows notable differences in funding allocation among various research institutions, with a substantial portion of funds concentrated in a few leading institutions, leading to inequities across different types and levels of organizations. The impact of applicant gender on funding disparities is relatively minor; although female applicants have a slightly lower funding rate, the concentration of funds is marginally higher among females. Furthermore, the study highlights that key projects and talent-oriented initiatives, due to their significant funding concentration, exacerbate the existing imbalances. Overall, this research provides valuable insights for optimizing funding policies and advocates for a more equitable distribution of resources in Environmental Chemistry research, addressing the identified disparities.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"155 ","pages":"Pages 267-277"},"PeriodicalIF":5.9,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158426","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}

{"title":"Selective ozone oxidation of ammonium ion catalyzed by carbon nanocage-supported Co3O4: Role of oxygen vacancies and electron transfer sites","authors":"Yu Gao ,&nbsp;Xiemin Liu ,&nbsp;Weida Chen ,&nbsp;Jin Jin ,&nbsp;Xizhang Wang ,&nbsp;Feng Zhang ,&nbsp;Xiankun Wu","doi":"10.1016/j.jes.2025.01.003","DOIUrl":"10.1016/j.jes.2025.01.003","url":null,"abstract":"<div><div>For the effective treatment of the wastewater with low-medium concentration ammonia nitrogen and low strength COD, a high-performance Co₃O₄ catalyst supported on carbon nanocages (CNCs) was prepared. By isovolumetric im pregnation, Co₃O₄ could be uniformly dispersed on surface of CNCs, which possess tiny particle size and strong electron transfer capability. The catalytic performance of the prepared Co₃O₄/CNCs catalysts with different Co₃O₄ loadings was systematically evaluated and compared with Co₃O₄/CNTs. It is found that 20 wt.% Co₃O₄/CNCs shows the best catalytic performance, achieving an ammonia nitrogen conversion rate of 71.0 % and a nitrogen selectivity of 81.8 %. Compared to commonly used Co₃O₄, ammonia conversion and nitrogen selectivity of Co₃O₄/CNCs increased by 28.9 % and 15.8 % respectively. In the five consecutive cycles, the catalytic activity remained stable. The mechanism that CNCs support effectively increases the surface oxygen vacancies of Co₃O₄ through XPS analysis was also elucidated, and DFT calculations confirm strong electron transfer between CNCs and Co₃O₄, rendering Co₃O₄ nanoparticles as the primary catalytic active sites. The results may contribute to the development of high-performance catalytic ozone oxidation catalysts for ammonia nitrogen.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"155 ","pages":"Pages 151-162"},"PeriodicalIF":5.9,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158423","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}

{"title":"Improving groundwater vulnerability assessment using machine learning","authors":"Juanjuan Fu,&nbsp;X. Chris Le","doi":"10.1016/j.jes.2024.12.024","DOIUrl":"10.1016/j.jes.2024.12.024","url":null,"abstract":"","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"153 ","pages":"Pages 6-9"},"PeriodicalIF":5.9,"publicationDate":"2024-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143039490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of PFAS serum exposure pattern on the lipid metabolism: Time to step-forward in causal inference in epidemiology","authors":"Ming Yang ,&nbsp;Ang Li ,&nbsp;Yayuan Mei ,&nbsp;Haoran Li ,&nbsp;Ziwen An ,&nbsp;Quan Zhou ,&nbsp;Jiaxin Zhao ,&nbsp;Yanbing Li ,&nbsp;Kai Li ,&nbsp;Meiduo Zhao ,&nbsp;Jing Xu ,&nbsp;Huicai Guo ,&nbsp;Qun Xu","doi":"10.1016/j.jes.2024.12.029","DOIUrl":"10.1016/j.jes.2024.12.029","url":null,"abstract":"<div><div>Associations of per- and polyfluoroalkyl substances (PFAS) on lipid metabolism have been documented but research remains scarce regarding effect of PFAS on lipid variability. To deeply understand their relationship, a step-forward in causal inference is expected. To address these, we conducted a longitudinal study with three repeated measurements involving 201 participants in Beijing, among which 100 eligible participants were included for the present study. Twenty-three PFAS and four lipid indicators were assessed at each visit. We used linear mixed models and quantile g-computation models to investigate associations between PFAS and blood lipid levels. A latent class growth model described PFAS serum exposure patterns, and a generalized linear model demonstrated associations between these patterns and lipid variability. Our study found that PFDA was associated with increased TC (β = 0.083, 95% CI: 0.011, 0.155) and HDL-C (β = 0.106, 95% CI: 0.034, 0.178). The PFAS mixture also showed a positive relationship with TC (β = 0.06, 95% CI: 0.02, 0.10), with PFDA contributing most positively. Compared to the low trajectory group, the middle trajectory group for PFDA was associated with VIM of TC (β = 0.756, 95% CI: 0.153, 1.359). Furthermore, PFDA showed biological gradients with lipid metabolism. This is the first repeated-measures study to identify the impact of PFAS serum exposure pattern on the lipid metabolism and the first to estimate the association between PFAS and blood lipid levels in middle-aged and elderly Chinese and reinforce the evidence of their causal relationship through epidemiological studies.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"155 ","pages":"Pages 163-176"},"PeriodicalIF":5.9,"publicationDate":"2024-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158425","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}

{"title":"Environmental studies of priority persistent contaminants: A special issue dedicated to Professor Chuanyong Jing","authors":"Emma Jing ,&nbsp;Li Yan ,&nbsp;Guibin Jiang ,&nbsp;X. Chris Le","doi":"10.1016/j.jes.2024.12.026","DOIUrl":"10.1016/j.jes.2024.12.026","url":null,"abstract":"","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"153 ","pages":"Pages 1-5"},"PeriodicalIF":5.9,"publicationDate":"2024-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143039488","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}

{"title":"New insight into rapid removal of refractory pollutants via efficient charge transfer under visible light","authors":"Songlin Cai ,&nbsp;Ciyuan Huang ,&nbsp;Linji Yang ,&nbsp;Yuchen Wang ,&nbsp;Lingxiao Li ,&nbsp;Shangfei Yao ,&nbsp;Ke Sun ,&nbsp;Caiyun Wang ,&nbsp;Guanhui Tan ,&nbsp;Tao Yang ,&nbsp;Shengjie Wang ,&nbsp;Bingsuo Zou ,&nbsp;Tao Liu","doi":"10.1016/j.jes.2024.12.019","DOIUrl":"10.1016/j.jes.2024.12.019","url":null,"abstract":"<div><div>The widespread use of personal care products poses significant risks to both ecosystems and human health. The construction of photocatalysts with the advantages of enhanced visible light absorption, efficient charge separation and high stability is important for the degradation of persistent environmental pollutants. Herein, we have prepared two D-A heterojunction organic semiconductor photocatalysts: PV-BDTC1:IDTCN/Biochar and PV-BDTC2:IDTCN/Biochar by a simple design method that can be widely applied. Under visible light irradiation, PV-BDTC2:IDTCN/Biochar showed better removal ability for indomethacin, with reaction rate constants 14.7 and 5.1 times higher than those of PV-BDTC2:IDTCN and Biochar, respectively. This is attributed to the construction of a heterojunction between the donor and the acceptor, which expands the light absorption range and promotes the separation of photogenerated carriers, thereby giving the material the ability to produce a large number of reactive oxygen species during the photocatalytic reaction. In addition, Biochar well ensures the stability of D-A heterojunction films under long-term operating conditions. This work highlight the potential of natural biomaterials in constructing effective D-A heterojunction organic photocatalysts/adsorbents for combatting water pollution.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"155 ","pages":"Pages 139-150"},"PeriodicalIF":5.9,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158422","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}

{"title":"Construction of an SnS-based heterostructure catalyst for electrochemical CO2 reduction to formate over a wide potential window","authors":"Renzhi Qi ,&nbsp;Zhaoping Zhong ,&nbsp;Fei Huang ,&nbsp;Fuqiang Chen ,&nbsp;You Jia ,&nbsp;Yuxuan Yang ,&nbsp;Zekun Yun ,&nbsp;Qihang Ye","doi":"10.1016/j.jes.2024.12.015","DOIUrl":"10.1016/j.jes.2024.12.015","url":null,"abstract":"<div><div>SnS has emerged as an attractive catalyst for the electrochemical CO₂ reduction reaction (CO₂RR) to formate, while its long-term operational stability is hindered by the self-reduction of Sn²⁺ and sulfur dissolution. Thus, maintaining high current efficiency across a wide negative potential range to achieve high production rates of formate remains a significant challenge. In this study, we present a heterostructure constructed with SnS and CuS for efficient CO₂RR to formate. The SnS-CuS (30) exhibits a remarkable formate Faradaic efficiency (<em>FE_f</em>) of 93.94 % at −1 V vs reversible hydrogen electrode (RHE) and demonstrates long-term stability for 7.5 h, maintaining high activity (with an average <em>FE_f</em> of 85.6 %) across a wide negative potential range (− 0.8 V−1.2 V (vs. RHE)). The results reveal that the heterogeneous interface between SnS and CuS mitigates the self-reduction issue of SnS by sacrificing Cu²⁺, highlighting that the true active species is SnS, which effectively resists structural changes during the electrolysis process under the protection of CuS. The synergistic interaction within the CuS and SnS heterostructure, combined with the tendency for electron self-conduction, enables the catalyst to maintain high formate activity and selectivity across a wide potential range. Furthermore, theoretical results further indicate that the incorporation of CuS enhances CO₂ adsorption and lowers the energy barrier for the formation of formate intermediates. This study inspires the concept of applying protective layers to active species, promoting high selectivity in Sn-based electrocatalysts.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"155 ","pages":"Pages 25-36"},"PeriodicalIF":5.9,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158377","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}

{"title":"Dual S-scheme heterojunction via MOF-on-MOF strategy for efficient photoelectrocatalytic removal of organic contaminants: Detoxification and mechanism","authors":"Qiang Li ,&nbsp;Qi Zhou ,&nbsp;Yanling Wu ,&nbsp;Yingxue Shi ,&nbsp;Yingqi Liu ,&nbsp;Hao Deng ,&nbsp;Siwei Chen ,&nbsp;Zhiheng Li ,&nbsp;Erpeng Wang ,&nbsp;Huayue Zhu ,&nbsp;Qi Wang","doi":"10.1016/j.jes.2024.12.014","DOIUrl":"10.1016/j.jes.2024.12.014","url":null,"abstract":"<div><div>Accelerating the separation of carriers in the heterojunction plays vital role in the photoelectrocatalytic (PEC) process, yet it remains a challenging undertaking. Herein, a MOF-on-MOF based dual S-scheme heterojunction (BiVO₄/NH₂-MIL-125(Ti)/NH₂-MIL-53(Fe), denoted as BVO/NM125/NM53) was rationally designed and prepared for PEC removing and detoxification of organic contaminants (phenol, tetracycline hydrochloride, ciprofloxacin and norfloxacin). The S-scheme heterojunction was double confirmed by DFT calculation and XPS analysis. The charge transfer resistance of BVO/NM125/NM53 photoanode decreases to 1/11 of bare BiVO₄ photoanode. Meanwhile, the photocurrent density was 3 times higher, demonstrating a marked improvement in carrier separation efficiency due to dual S-scheme heterojunction. The photoanode achieved 94.3 % removal of phenol within 60 min and maintained stable performance over 10 consecutive cycles, demonstrating good PEC efficiency and structural stability. The BVO/NM125/NM53 photoanode also showed effectiveness in removing antibiotics, with chlorophyll fluorescence imaging confirming a significant reduction in the ecotoxicity of intermediates. For example, wheat seed germination, growth, chlorophyll and Carotenoid production were not affected, which was similar to that of deionized water. Radical trapping experiments and electron paramagnetic resonance (EPR) analysis identified •O₂^- and •OH as the primary active species. This work demonstrates the effectiveness of developing MOF-on-MOF heterojunctions for visible-light response and enhancing charge separation in PEC.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"155 ","pages":"Pages 111-126"},"PeriodicalIF":5.9,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158420","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}

{"title":"Arsenic speciation in freshwater fish using high performance liquid chromatography and inductively coupled plasma mass spectrometry","authors":"Chester Lau ,&nbsp;Xiufen Lu ,&nbsp;Karen S. Hoy ,&nbsp;Tetiana Davydiuk ,&nbsp;Jennifer A. Graydon ,&nbsp;Megan Reichert ,&nbsp;X. Chris Le","doi":"10.1016/j.jes.2024.12.010","DOIUrl":"10.1016/j.jes.2024.12.010","url":null,"abstract":"<div><div>Arsenic speciation in freshwater fish is crucial for providing meaningful consumption guidelines that allow the public to make informed decisions regarding its consumption. While marine fish have attracted much research interest due to their higher arsenic content, research on freshwater fish is limited due to the challenges in quantifying and identifying arsenic species present at trace levels. We describe here a sensitive method and its application to the quantification of arsenic species in freshwater fish. Arsenic species from fish tissues were extracted using a methanol/water mixture (1:1 vol. ratio) and ultrasound sonication. Anion-exchange high-performance liquid chromatography (HPLC) enabled separation of arsenobetaine (AsB), inorganic arsenite (iAs^III), dimethylarsinic acid (DMA), monomethylarsonic acid (MMA), inorganic arsenate (iAs^V), and three new arsenic species. Inductively coupled plasma mass spectrometry (ICPMS) provided highly sensitive and specific detection of arsenic. A limit of detection of 0.25 µg/kg (wet weight fish tissue) was achieved for the five target arsenic species: AsB, iAs^III, DMA, MMA, and iAs^V. A series of experiments were conducted to ensure the accuracy and validity of the analytical method. The method was successfully applied to the determination of arsenic species in lake whitefish, northern pike, and walleye, with AsB, DMA, and iAs^V being frequently detected. Three new arsenic species were detected, but their chromatographic retention times did not match with those of any available arsenic standards. Future research is necessary to elucidate the identity of these new arsenic species detected in freshwater fish.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"153 ","pages":"Pages 302-315"},"PeriodicalIF":5.9,"publicationDate":"2024-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143039481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Arsenic speciation in more than 1600 freshwater fish samples from fifty-three waterbodies in Alberta, Canada","authors":"Chester Lau ,&nbsp;Xiufen Lu ,&nbsp;Xiaojian Chen ,&nbsp;Karen S. Hoy ,&nbsp;Tetiana Davydiuk ,&nbsp;Jennifer A. Graydon ,&nbsp;Megan Reichert ,&nbsp;Adrienne LeBlanc ,&nbsp;Caitlyn Donadt ,&nbsp;Gian Jhangri ,&nbsp;X. Chris Le","doi":"10.1016/j.jes.2024.12.009","DOIUrl":"10.1016/j.jes.2024.12.009","url":null,"abstract":"<div><div>We report here arsenic speciation in 1643 freshwater fish samples, representing 14 common fish species from 53 waterbodies in Alberta, Canada. Arsenic species were extracted from fish muscle tissue. Arsenic species in the extracts were separated using anion-exchange high-performance liquid chromatography (HPLC) and quantified using inductively coupled plasma mass spectrometry (ICPMS). The total arsenic concentrations in fish ranged from 2.8 to 1200 µg/kg (in wet weight of sample) (mean 71 ± 101 µg/kg), which are all below the 2000 µg/kg (wet weight) maximum allowable total arsenic in fish, recommended by the Ontario Ministry of the Environment. In 99.7%, or 1638 of all 1643 freshwater fish samples analyzed, arsenobetaine (AsB) was detectable, with concentrations higher than the method detection limit of 0.25 µg/kg (wet weight). Dimethylarsinic acid (DMA) was detectable (concentration &gt;0.25 µg/kg) in 92.1%, or 1514 of the 1643 freshwater fish samples. Inorganic arsenate (iAs^V) was detectable (&gt;0.25 µg/kg) in 1119 fish (i.e., 68.1% of 1643 samples). Monomethylarsonic acid (MMA) was detectable (&gt;0.25 µg/kg) in 418 fish (25.4% of 1643 samples). The concentrations of arsenic species in the 1643 fish samples varied by as much as three orders of magnitude, ranging from below the method detection limit of 0.25 µg/kg to the maximum concentrations of 380 µg/kg for AsB, 150 µg/kg for DMA, 70 µg/kg for iAs^V, and 51 µg/kg for MMA. AsB made up 46.1% ± 26.2% of total arsenic species. Arsenic speciation patterns varied between lake whitefish, northern pike, and walleye, the three most common types of fish analyzed. The relative proportion of DMA in northern pike was larger than in lake whitefish and walleye, and conversely, the relative proportion of iAs^V was lower in northern pike. Seven unknown arsenic species were detected, and their chromatographic retention time did not match with those of available arsenic standards. At least one unknown arsenic species was detected in 33.4%, or 549 of 1643 freshwater fish samples. The concentrations of unknown arsenic species were as high as 61 µg/kg. Future research is necessary to identify unknown arsenic species and to determine contributing factors to the observed arsenic species patterns and concentrations.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"153 ","pages":"Pages 289-301"},"PeriodicalIF":5.9,"publicationDate":"2024-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143039482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}