Pub Date : 2024-11-17DOI: 10.1016/j.jhazmat.2024.136561
Songyu Luo, Shipeng Fan, Jie Yuan, Jianyu Xiao, Xu Sun, Liang Wang, Yongfan Zhang, Zizhong Zhang, Xianzhi Fu, Wenxin Dai
Volatile Organic Compounds (VOCs) are omnipresent in the sphere of human industrial, harboring latent adverse consequences for health and the ecological system. The photothermal catalytic oxidation of VOCs is an advanced integrated technology that harnesses the combined effects of light and heat energy to enhance the efficiency of VOCs degradation. Herein, a bimetallic Metal-Organic Framework (MOF) was synthesized with the incorporation of Ce into the UiO-66-NH2(Zr) (i.e., UNH(Zr)), UiO-66-NH2(Zr2Ce) (i.e., UNH(Z2C)), which was achieved with Ce atom substituting for a portion of Zr atom within the Zr-oxo clusters. Pt nanoparticles (NPs) are integrated with MOFs to form composites using the dual-solvent method. Ce-oxo fulfills a bifunctional role: it not only facilitates the enhancement of the ligand-to-metal charge transfer (LMCT), but also establishes interaction with Pt NPs. Ce-oxo mediates an enhancement of electron density on Pt NPs. This phenomenon enhances the adsorption and activation of oxygen, significantly boosting the photocatalytic performance for toluene degradation, as demonstrated by a reduction of 30℃ for complete mineralization of toluene as compared to that of Pt@UiO-66-NH2(Zr) (i.e., PUNH(Zr)). This study potentially offers new insights into the relationship between electron transfer effects in bimetallic MOF-based catalysts and their efficient catalytic performance for VOCs degradation.
{"title":"Regulation of Electron Density in Pt Nanoparticles via Bimetallic Metal-Organic Frameworks for Enhancing Photothermal Catalysis of Toluene Decomposition","authors":"Songyu Luo, Shipeng Fan, Jie Yuan, Jianyu Xiao, Xu Sun, Liang Wang, Yongfan Zhang, Zizhong Zhang, Xianzhi Fu, Wenxin Dai","doi":"10.1016/j.jhazmat.2024.136561","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2024.136561","url":null,"abstract":"Volatile Organic Compounds (VOCs) are omnipresent in the sphere of human industrial, harboring latent adverse consequences for health and the ecological system. The photothermal catalytic oxidation of VOCs is an advanced integrated technology that harnesses the combined effects of light and heat energy to enhance the efficiency of VOCs degradation. Herein, a bimetallic Metal-Organic Framework (MOF) was synthesized with the incorporation of Ce into the UiO-66-NH<sub>2</sub>(Zr) (i.e., UNH(Zr)), UiO-66-NH<sub>2</sub>(Zr<sub>2</sub>Ce) (i.e., UNH(Z<sub>2</sub>C)), which was achieved with Ce atom substituting for a portion of Zr atom within the Zr-oxo clusters. Pt nanoparticles (NPs) are integrated with MOFs to form composites using the dual-solvent method. Ce-oxo fulfills a bifunctional role: it not only facilitates the enhancement of the ligand-to-metal charge transfer (LMCT), but also establishes interaction with Pt NPs. Ce-oxo mediates an enhancement of electron density on Pt NPs. This phenomenon enhances the adsorption and activation of oxygen, significantly boosting the photocatalytic performance for toluene degradation, as demonstrated by a reduction of 30℃ for complete mineralization of toluene as compared to that of Pt@UiO-66-NH<sub>2</sub>(Zr) (i.e., PUNH(Zr)). This study potentially offers new insights into the relationship between electron transfer effects in bimetallic MOF-based catalysts and their efficient catalytic performance for VOCs degradation.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"128 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142645935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
Seafood consumption is the major source of total Hg (tHg) and methyl mercury (MeHg) for humans. Lack of broad-representative bio-accessibility of mercury species makes accurate assessment on health risk of seafood’s mercury impossible. Herein, the concentrations and in vitro bio-accessibilities of mercury species in 93 seafood samples with 71 different species were extensively investigated. Results indicated that all shellfish and fish samples, and most seaweed samples contained both Hg2+ and MeHg, while some seaweed samples contained only Hg2+. The concentrations of mercury species varied depending on the differences in species/individuals of seafood and sampling regions. MeHg in seafood can be partly de-methylated into Hg2+ during gastrointestinal digestion, which reduced the toxicity of mercury in seafood. The mean demethylation rate of MeHg varied as follows: seaweeds (⁓62.1%) > shellfishes/shrimps (⁓19.7%) > fishes (⁓9.2%). The mean bio-accessibility of Hg2+ and tHg varied as follows: seaweeds (⁓97.7% and ⁓90.1%) > shellfishes/shrimps (⁓65.1% and ⁓67.9%) ≈ fishes (⁓65.1% and ⁓66.7%), while that of MeHg varied as follows: fishes (⁓57.7%) > shellfishes/shrimps (50.8%) > seaweeds (⁓11.6%). The simulated calculation of target hazard quotient (THQ) revealed that the health risk of seafood’s mercury may be accurately assessed using tHg, not mercury species, even without considering bio-accessibility. This offers a simple but protective approach for assessing the health risk of seafood’s mercury. Results of this study provide the potential broad-representative bio-accessibilities of mercury species existing in various kinds of seafood and novel insights for scientifically assessing the health risk of seafood’s mercury and revising the mercury limitation in seafood.
{"title":"The characteristic and bio-accessibility evaluation of mercury species in various kinds of seafood collected from Fujian of China for mercury risk assessment","authors":"Chaochen Sun, Miaomiao Yin, Ying Peng, Chen Lin, Yongning Wu, FengFu Fu, Yue Lin","doi":"10.1016/j.jhazmat.2024.136549","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2024.136549","url":null,"abstract":"Seafood consumption is the major source of total Hg (tHg) and methyl mercury (MeHg) for humans. Lack of broad-representative bio-accessibility of mercury species makes accurate assessment on health risk of seafood’s mercury impossible. Herein, the concentrations and <em>in vitro</em> bio-accessibilities of mercury species in 93 seafood samples with 71 different species were extensively investigated. Results indicated that all shellfish and fish samples, and most seaweed samples contained both Hg<sup>2+</sup> and MeHg, while some seaweed samples contained only Hg<sup>2+</sup>. The concentrations of mercury species varied depending on the differences in species/individuals of seafood and sampling regions. MeHg in seafood can be partly de-methylated into Hg<sup>2+</sup> during gastrointestinal digestion, which reduced the toxicity of mercury in seafood. The mean demethylation rate of MeHg varied as follows: seaweeds (⁓62.1%) > shellfishes/shrimps (⁓19.7%) > fishes (⁓9.2%). The mean bio-accessibility of Hg<sup>2+</sup> and tHg varied as follows: seaweeds (⁓97.7% and ⁓90.1%) > shellfishes/shrimps (⁓65.1% and ⁓67.9%) ≈ fishes (⁓65.1% and ⁓66.7%), while that of MeHg varied as follows: fishes (⁓57.7%) > shellfishes/shrimps (50.8%) > seaweeds (⁓11.6%). The simulated calculation of target hazard quotient (THQ) revealed that the health risk of seafood’s mercury may be accurately assessed using tHg, not mercury species, even without considering bio-accessibility. This offers a simple but protective approach for assessing the health risk of seafood’s mercury. Results of this study provide the potential broad-representative bio-accessibilities of mercury species existing in various kinds of seafood and novel insights for scientifically assessing the health risk of seafood’s mercury and revising the mercury limitation in seafood.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"111 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142645823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
Pub Date : 2024-11-17DOI: 10.1016/j.jhazmat.2024.136554
Longji Xia, Jiaping Wang, Min Chen, Guiying Li, Wanjun Wang, Taicheng An
Over 95% of bacteria on water supply pipeline surfaces exist in biofilms, which are hotspots for antibiotic resistance gene (ARG) transmission. This study established mixed biofilm culture systems on a metal iron substrate using Escherichia coli: antibiotic-sensitive bacteria (ASB) and antibiotic-resistant bacteria (ARB). The growth rate and extracellular polymeric substances (EPS) content of mixed biofilm surpassed single-species biofilms due to synergistic interactions among different bacteria. However, the composition of mixed biofilms formed by ASB and ARB became unstable after 72 h, linked to reduced polysaccharide proportions in EPS and inter-bacterial competition. The bacterial composition and conjugative transfer frequency of ARGs in mixed biofilms indicate that biofilm formation significantly enhances horizontal transfer of ARGs. Notably, the conjugative transfer frequency of the mixed biofilm formed by two ARB increased 100-fold within five days. In contrast, the conjugative transfer frequency in the mixed biofilm formed by ASB and ARB was unstable; inter-bacterial competition led to plasmid loss associated with horizontal transfer of ARGs, ultimately resulting in biofilm shedding. Furthermore, genes associated with ARG transfer and biofilm growth up-regulated by 1.5 − 6 and 2 − 7 times, respectively, in mixed biofilm. These findings highlight a mutually reinforcing relationship between biofilm formation and horizontal ARG transmission, with significant environmental implications.
{"title":"Biofilm formation mechanisms of mixed antibiotic-resistant bacteria in water: bacterial interactions and horizontal transfer of antibiotic-resistant plasmids","authors":"Longji Xia, Jiaping Wang, Min Chen, Guiying Li, Wanjun Wang, Taicheng An","doi":"10.1016/j.jhazmat.2024.136554","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2024.136554","url":null,"abstract":"Over 95% of bacteria on water supply pipeline surfaces exist in biofilms, which are hotspots for antibiotic resistance gene (ARG) transmission. This study established mixed biofilm culture systems on a metal iron substrate using <em>Escherichia coli</em>: antibiotic-sensitive bacteria (ASB) and antibiotic-resistant bacteria (ARB). The growth rate and extracellular polymeric substances (EPS) content of mixed biofilm surpassed single-species biofilms due to synergistic interactions among different bacteria. However, the composition of mixed biofilms formed by ASB and ARB became unstable after 72<!-- --> <!-- -->h, linked to reduced polysaccharide proportions in EPS and inter-bacterial competition. The bacterial composition and conjugative transfer frequency of ARGs in mixed biofilms indicate that biofilm formation significantly enhances horizontal transfer of ARGs. Notably, the conjugative transfer frequency of the mixed biofilm formed by two ARB increased 100-fold within five days. In contrast, the conjugative transfer frequency in the mixed biofilm formed by ASB and ARB was unstable; inter-bacterial competition led to plasmid loss associated with horizontal transfer of ARGs, ultimately resulting in biofilm shedding. Furthermore, genes associated with ARG transfer and biofilm growth up-regulated by 1.5 − 6 and 2 − 7 times, respectively, in mixed biofilm. These findings highlight a mutually reinforcing relationship between biofilm formation and horizontal ARG transmission, with significant environmental implications.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"165 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142645826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
Pub Date : 2024-11-17DOI: 10.1016/j.jhazmat.2024.136556
Rubing Zou, Ruud van Dam, Nathalie Smits, Erik Beij, Toine Bovee, Dirk C. de Graaf, Yirong Guo, Jeroen Peters
Exposure to pesticides is one of the main drivers of global bee decline. However, the occurrence of pesticides in bee-attracting crops remains underexposed due to the lack of efficient on-site screening approaches for multi-analyte monitoring. Utilizing color-encoded superparamagnetic microspheres, we constructed a portable 8-plex indirect competitive microsphere-based immunoassay for the simultaneous determination of multiple bee-hazardous residues (Bee-Plex). Through a single measurement within 40 min, Bee-Plex exhibited high sensitivities with IC50values of 0.04, 0.08, 0.14, 0.15, 0.78, 0.86, 7.72, and 8.79 ng/mL for imidacloprid, parathion, fipronil, emamectin, carbofuran, chlorpyrifos, fenpropathrin and carbaryl, respectively. Moreover, the implementation of multiple broad-specific antibodies enables a wide-range screening profile for 30 pesticides and pesticide metabolites, detecting 6 neonicotinoids, 6 N-methyl carbamates 6 organophosphates, 5 avermectins, 5 pyrethroids and 2 phenylpyrazoles. The combination of Bee-Plex screening (93% accuracy) and LC-MS/MS confirmatory analysis revealed contaminations of neonicotinoids (100%) and avermectins (70%) in roses, with occurrence frequencies of 79%, 79%, 21%, 21%, 7%, and 7% for imidacloprid, acetamiprid, clothianidin, thiacloprid, imidaclothiz, and nitenpyram, respectively. Above all, this study offers a powerful analytical tool for rapid screening of multiple bee-hazardous pesticides, offering new insights in the occurrence of multi-pesticide contamination in ornamental plants.
{"title":"Discovery of multiple bee-hazardous pesticides in ornamental plants via the Bee-Plex multi-target microsphere screening method","authors":"Rubing Zou, Ruud van Dam, Nathalie Smits, Erik Beij, Toine Bovee, Dirk C. de Graaf, Yirong Guo, Jeroen Peters","doi":"10.1016/j.jhazmat.2024.136556","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2024.136556","url":null,"abstract":"Exposure to pesticides is one of the main drivers of global bee decline. However, the occurrence of pesticides in bee-attracting crops remains underexposed due to the lack of efficient on-site screening approaches for multi-analyte monitoring. Utilizing color-encoded superparamagnetic microspheres, we constructed a portable 8-plex indirect competitive microsphere-based immunoassay for the simultaneous determination of multiple bee-hazardous residues (Bee-Plex). Through a single measurement within 40<!-- --> <!-- -->min, Bee-Plex exhibited high sensitivities with IC<sub>50</sub>values of 0.04, 0.08, 0.14, 0.15, 0.78, 0.86, 7.72, and 8.79<!-- --> <!-- -->ng/mL for imidacloprid, parathion, fipronil, emamectin, carbofuran, chlorpyrifos, fenpropathrin and carbaryl, respectively. Moreover, the implementation of multiple broad-specific antibodies enables a wide-range screening profile for 30 pesticides and pesticide metabolites, detecting 6 neonicotinoids, 6 N-methyl carbamates 6 organophosphates, 5 avermectins, 5 pyrethroids and 2 phenylpyrazoles. The combination of Bee-Plex screening (93% accuracy) and LC-MS/MS confirmatory analysis revealed contaminations of neonicotinoids (100%) and avermectins (70%) in roses, with occurrence frequencies of 79%, 79%, 21%, 21%, 7%, and 7% for imidacloprid, acetamiprid, clothianidin, thiacloprid, imidaclothiz, and nitenpyram, respectively. Above all, this study offers a powerful analytical tool for rapid screening of multiple bee-hazardous pesticides, offering new insights in the occurrence of multi-pesticide contamination in ornamental plants.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"98 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142645825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
Biomass-pyrogenic smoke dissolved organic matter (BPS-DOM) can co-deposit with polycyclic aromatic hydrocarbons (PAHs), thereby altering their environmental behavior and fate in surface environments. However, the heterogeneous molecular characteristics of BPS-DOM binding with PAHs remain unclear. This study systematically elucidates the binding characteristics of PAHs (phenanthrene and pyrene), with various molecular compositions in BPS-DOM, utilizing FT-ICR MS and fluorescence variation analysis. CHO compounds in BPS-DOM, characterized by high aromaticity and abundant C=O bonds, significantly enhance PAHs binding by promoting π-π electron donor-acceptor interactions. In contrast, CHON compounds with higher aliphaticity inhibit pyrene binding by competing for binding sites on BPS-DOM. Furthermore, the binding sequence of different fluorescent molecules follows the order of CHO→CHOS→CHON for phenanthrene and CHO→CHON→CHOS for pyrene. This was primarily due to the larger conjugated aromatic structures of CHO compounds, which provide stronger π-π interaction sites for PAHs binding. The difference in binding sequences between phenanthrene and pyrene is primarily attributed to phenanthrene's reliance on π-π electron donor-acceptor interactions induced by -S=O and -N=O, while pyrene binding depended on π-π interactions driven by larger conjugated aromatic structures. These results provide an important theoretical foundation for further understanding the molecular-level interactions between BPS-DOM and PAHs.
{"title":"The heterogenous molecular characteristics of biomass-pyrogenic smoke dissolved organic matters (BPS-DOMs) binding with PAHs: novel insights from combined analysis of FT-ICR MS and fluorescence variation","authors":"Huiying Zhang, Zhigeng Wang, Qin Dai, Jinzhi Ni, Yue Cheng, Ran Wei, Weifeng Chen","doi":"10.1016/j.jhazmat.2024.136547","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2024.136547","url":null,"abstract":"Biomass-pyrogenic smoke dissolved organic matter (BPS-DOM) can co-deposit with polycyclic aromatic hydrocarbons (PAHs), thereby altering their environmental behavior and fate in surface environments. However, the heterogeneous molecular characteristics of BPS-DOM binding with PAHs remain unclear. This study systematically elucidates the binding characteristics of PAHs (phenanthrene and pyrene), with various molecular compositions in BPS-DOM, utilizing FT-ICR MS and fluorescence variation analysis. CHO compounds in BPS-DOM, characterized by high aromaticity and abundant C=O bonds, significantly enhance PAHs binding by promoting π-π electron donor-acceptor interactions. In contrast, CHON compounds with higher aliphaticity inhibit pyrene binding by competing for binding sites on BPS-DOM. Furthermore, the binding sequence of different fluorescent molecules follows the order of CHO→CHOS→CHON for phenanthrene and CHO→CHON→CHOS for pyrene. This was primarily due to the larger conjugated aromatic structures of CHO compounds, which provide stronger π-π interaction sites for PAHs binding. The difference in binding sequences between phenanthrene and pyrene is primarily attributed to phenanthrene's reliance on π-π electron donor-acceptor interactions induced by -S=O and -N=O, while pyrene binding depended on π-π interactions driven by larger conjugated aromatic structures. These results provide an important theoretical foundation for further understanding the molecular-level interactions between BPS-DOM and PAHs.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"8 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142645827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
Pub Date : 2024-11-17DOI: 10.1016/j.jhazmat.2024.136548
Yunchuan Xian, Linlin Cao, Yuxiang Lu, Qiuhong Li, Chengyuan Su, Yuan He, Guangrong Zhou, Shenglong Chen, Shu Gao
This study demonstrated the effects of the sludge type and inoculation method on the N,N-dimethylformamide degradation pathway and associated microbial communities. The sludge type is critical for DMF metabolism, with acclimatized aerobic sludge having a significant advantage in terms of DMF metabolism performance, whereas acclimatized anaerobic sludge has a reduced DMF metabolism capacity. Metagenomic revealed increased abundances of Methanosarcina, Pelomona and Xanthobacter in the adapted anaerobic sludge, suggesting that anaerobic sludge can utilize the methyl products produced by DMF metabolism for growth. Adapted aerobic sludge had high Mycobacterium abundance, significantly boosting DMF hydrolysis. In addition, a large number of dmfA2 genes were found in aerobic sludge, more so in acclimatized sludge, indicating stronger DMF metabolism. Conversely, acclimatized anaerobic sludge showed lower abundance of dmd-tmd and mauA/B, qhpA genes, implying long-term DMF toxicity reduced anaerobic microbial activity. Metaproteomic analysis showed that Methanosarcina and Methanomethylovorans enzymes in anaerobic sludge metabolized dimethylamine and methylamine to methane, aiding DMF degradation. In the aerobic sludge, aminohydrolase proteins, which hydrolyze DMF, were significantly upregulated. These findings provide insights into DMF wastewater treatment.
{"title":"Metagenomics and metaproteomics reveal the effects of sludge types and inoculation modes on N,N-dimethylformamide degradation pathways and the microbial community involved","authors":"Yunchuan Xian, Linlin Cao, Yuxiang Lu, Qiuhong Li, Chengyuan Su, Yuan He, Guangrong Zhou, Shenglong Chen, Shu Gao","doi":"10.1016/j.jhazmat.2024.136548","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2024.136548","url":null,"abstract":"This study demonstrated the effects of the sludge type and inoculation method on the N,N-dimethylformamide degradation pathway and associated microbial communities. The sludge type is critical for DMF metabolism, with acclimatized aerobic sludge having a significant advantage in terms of DMF metabolism performance, whereas acclimatized anaerobic sludge has a reduced DMF metabolism capacity. Metagenomic revealed increased abundances of <em>Methanosarcina</em>, <em>Pelomona</em> and <em>Xanthobacter</em> in the adapted anaerobic sludge, suggesting that anaerobic sludge can utilize the methyl products produced by DMF metabolism for growth. Adapted aerobic sludge had high Mycobacterium abundance, significantly boosting DMF hydrolysis. In addition, a large number of <em>dmfA2</em> genes were found in aerobic sludge, more so in acclimatized sludge, indicating stronger DMF metabolism. Conversely, acclimatized anaerobic sludge showed lower abundance of <em>dmd-tmd</em> and <em>mauA/B</em>, <em>qhpA</em> genes, implying long-term DMF toxicity reduced anaerobic microbial activity. Metaproteomic analysis showed that <em>Methanosarcina</em> and <em>Methanomethylovorans</em> enzymes in anaerobic sludge metabolized dimethylamine and methylamine to methane, aiding DMF degradation. In the aerobic sludge, aminohydrolase proteins, which hydrolyze DMF, were significantly upregulated. These findings provide insights into DMF wastewater treatment.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"38 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142645830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
Pub Date : 2024-11-17DOI: 10.1016/j.jhazmat.2024.136539
Dongdong Jiang, Xuefen Cai, Hua Fang, Yuehong Li, Ziqi Zhang, Haoting Chen, Zixin Zheng, Wenxiang Wang, Yan Sun
Background
The interactions between pollutants and temperature coexposure, the mixing effects and their potential mechanisms remain uncertain.
Methods
This retrospective cohort study included 11,766 women with infertility who received treatment at Fujian Hospital between 2015 and 2024. The daily mean concentrations of the six pollutants and the relative humidity and temperature data were acquired from the Fujian region. Data on genes were obtained from the Comparative Toxicogenomics Database.
Results
O3 (aOR=0.80, 95% CI=0.725--0.891) and temperature (aOR=0.936, 95% CI=0.916--0.957) were negatively correlated with live birth rates. Moreover, PM10 (aOR=1.135, 95% CI=1.028--1.252) and PM2.5 (aOR=1.146, 95% CI=1.03--1.274) were positively associated with preterm birth. Among the effects on live births, PM2.5, PM10, NO2, CO, and SO2 had significant synergistic effects with temperature; in addition, O3 had significant antagonistic effects with temperature. A notable trend toward declining live birth rates with elevated concentrations of mixed pollutants was observed. Different infertility patients have different sensitivities to coexposure. Gene enrichment and cell experiments are associated mainly with cellular life activities.
Conclusions
Individual effects, interactions, and mixed effects between temperature and air pollutants and birth outcomes persist when air pollutant levels are relatively low. AAP may trigger miscarriage through cytotoxic effects.
{"title":"Coexposure to ambient air pollution and temperature and its associations with birth outcomes in women undergoing assisted reproductive technology in Fujian, China: A retrospective cohort study","authors":"Dongdong Jiang, Xuefen Cai, Hua Fang, Yuehong Li, Ziqi Zhang, Haoting Chen, Zixin Zheng, Wenxiang Wang, Yan Sun","doi":"10.1016/j.jhazmat.2024.136539","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2024.136539","url":null,"abstract":"<h3>Background</h3>The interactions between pollutants and temperature coexposure, the mixing effects and their potential mechanisms remain uncertain.<h3>Methods</h3>This retrospective cohort study included 11,766 women with infertility who received treatment at Fujian Hospital between 2015 and 2024. The daily mean concentrations of the six pollutants and the relative humidity and temperature data were acquired from the Fujian region. Data on genes were obtained from the Comparative Toxicogenomics Database.<h3>Results</h3>O<sub>3</sub> (<em>aOR</em>=0.80, <em>95% CI</em>=0.725--0.891) and temperature (<em>aOR</em>=0.936, <em>95% CI</em>=0.916--0.957) were negatively correlated with live birth rates. Moreover, PM<sub>10</sub> (<em>aOR</em>=1.135, <em>95% CI</em>=1.028--1.252) and PM<sub>2.5</sub> (<em>aOR</em>=1.146, <em>95% CI</em>=1.03--1.274) were positively associated with preterm birth. Among the effects on live births, PM<sub>2.5</sub>, PM<sub>10</sub>, NO<sub>2</sub>, CO, and SO<sub>2</sub> had significant synergistic effects with temperature; in addition, O<sub>3</sub> had significant antagonistic effects with temperature. A notable trend toward declining live birth rates with elevated concentrations of mixed pollutants was observed. Different infertility patients have different sensitivities to coexposure. Gene enrichment and cell experiments are associated mainly with cellular life activities.<h3>Conclusions</h3>Individual effects, interactions, and mixed effects between temperature and air pollutants and birth outcomes persist when air pollutant levels are relatively low. AAP may trigger miscarriage through cytotoxic effects.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"25 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142665512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
Pub Date : 2024-11-17DOI: 10.1016/j.jhazmat.2024.136533
Hai-Qian Li , Jin-Peng Lv , Yue-Hui Jia , Jie Liu , Qiong Liang , Jian Zhou , Ai-Zhen Yang , Teng Yan , Yu-Ping Yang , Gui-Lan Duan
The presence of microplastics (MPs) in paddy soil has become a growing concern, yet the influence of MPs on arsenic (As) dynamics in paddy soil remains largely unexplored. A 98-day microcosm experiment was conducted to investigate the impact of MPs on As behavior in As-contaminated paddy soil. The results revealed that conventional microplastics (CMPs) reduced As concentration in porewater by 25–38 %, but substantially increased the percentage of methylated As (% MeAs) in soil by 8–23 times under 5 % dosages after 98-day incubation. In contrast, at the end of incubation, biodegradable microplastics (BMPs) at 5 % dosages notably increased As concentration in porewater and % MeAs in soil by 2–9 times and 11–395 times, respectively. The combination of network analysis and Random-Forest analysis implied that CMPs might inhibit As mobility through enhancing microbial As(III) oxidation and promote As methylation by enriching arsM-carrying microbes. However, BMPs promoted As release mainly accompanying with microbial iron reduction, and enhanced As methylation through enriching fermenting bacteria (i.e., Clostridiaceae) and arsM-carrying organic matter degrading bacteria (i.e., Gemmatimonas and Nocardia). These findings might provide broaden insights into As cycling induced by MPs and contribute to the prevention of combined pollution from As and MPs in paddy soil.
{"title":"Conventional and biodegradable microplastics affected arsenic mobility and methylation in paddy soils through distinct chemical-microbial pathways","authors":"Hai-Qian Li , Jin-Peng Lv , Yue-Hui Jia , Jie Liu , Qiong Liang , Jian Zhou , Ai-Zhen Yang , Teng Yan , Yu-Ping Yang , Gui-Lan Duan","doi":"10.1016/j.jhazmat.2024.136533","DOIUrl":"10.1016/j.jhazmat.2024.136533","url":null,"abstract":"<div><div>The presence of microplastics (MPs) in paddy soil has become a growing concern, yet the influence of MPs on arsenic (As) dynamics in paddy soil remains largely unexplored. A 98-day microcosm experiment was conducted to investigate the impact of MPs on As behavior in As-contaminated paddy soil. The results revealed that conventional microplastics (CMPs) reduced As concentration in porewater by 25–38 %, but substantially increased the percentage of methylated As (% MeAs) in soil by 8–23 times under 5 % dosages after 98-day incubation. In contrast, at the end of incubation, biodegradable microplastics (BMPs) at 5 % dosages notably increased As concentration in porewater and % MeAs in soil by 2–9 times and 11–395 times, respectively. The combination of network analysis and Random-Forest analysis implied that CMPs might inhibit As mobility through enhancing microbial As(III) oxidation and promote As methylation by enriching <em>arsM</em>-carrying microbes. However, BMPs promoted As release mainly accompanying with microbial iron reduction, and enhanced As methylation through enriching fermenting bacteria (i.e., <em>Clostridiaceae</em>) and <em>arsM</em>-carrying organic matter degrading bacteria (i.e., <em>Gemmatimona</em>s and <em>Nocardia</em>). These findings might provide broaden insights into As cycling induced by MPs and contribute to the prevention of combined pollution from As and MPs in paddy soil.</div></div>","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"481 ","pages":"Article 136533"},"PeriodicalIF":12.2,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142645834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
Pub Date : 2024-11-16DOI: 10.1016/j.jhazmat.2024.136534
Qian Zhang, Lijun Wang
A total of 102 urban soil and surface dust samples were collected from Lanzhou of China to clarify the occurrences, sources, affecting factors, and health risks of 13 organophosphate esters (OPEs). The total concentration of 13 OPEs (Ʃ13OPEs) in urban soil and surface dust ranged from 80.1 to 749 and 244 to 4905 ng/g, dominated by chlorinated OPEs (39.9% and 65.1%). The Ʃ13OPEs in the two media was higher in the central and eastern of Lanzhou due to local topography and wind direction. OPEs in the two media originated from industrial, traffic and commercial activities (37%–53.4%), atmospheric depositions (24.3%–31.3%), and OPEs-containing material emissions (14.5%–31.7%). Transport station number, residential/commercial area distribution, and road length were positively correlated with Ʃ13OPEs in the two media, suggesting that traffic activities are the main factors influencing the distribution of OPEs. Probabilistic non-cancer (< 1) and cancer (< 1×10-6) risks of human exposed to OPEs were low, mainly attributed to OPEs-containing material emissions (47.5%–62.0%) in urban soil and industrial/traffic activities (57.8%–92.2%) in surface dust. Reducing the frequency of human exposed to the two media and controlling the release of OPEs from pollution sources may mitigate population exposure risks.
为了明确 13 种有机磷酸酯（OPEs）的存在、来源、影响因素和健康风险，研究人员在中国兰州采集了 102 份城市土壤和地表灰尘样品。城市土壤和地表尘埃中 13 种 OPEs 的总浓度（Ʃ13OPEs）分别为 80.1 至 749 和 244 至 4905 ng/g，其中以氯化 OPEs 为主（39.9% 和 65.1%）。受当地地形和风向的影响，兰州中部和东部地区两种介质中的Ʃ13OPEs含量较高。两种介质中的 OPEs 来源于工业、交通和商业活动（37%-53.4%）、大气沉降（24.3%-31.3%）和含 OPEs 物质的排放（14.5%-31.7%）。交通站点数量、住宅/商业区分布和道路长度与两种介质中的Ʃ13OPEs 呈正相关，表明交通活动是影响 OPEs 分布的主要因素。人类暴露于 OPEs 的概率非致癌风险（1）和致癌风险（1×10-6）均较低，主要归因于城市土壤中的含 OPEs 物质排放（47.5%-62.0%）和地表扬尘中的工业/交通活动（57.8%-92.2%）。减少人类接触这两种介质的频率，并控制污染源释放的 OPEs，可降低人口接触风险。
{"title":"Affecting factors and health risks of organophosphate esters in urban soil and surface dust in a typical river valley city based on local bivariate Moran's I and Monte-Carlo simulation","authors":"Qian Zhang, Lijun Wang","doi":"10.1016/j.jhazmat.2024.136534","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2024.136534","url":null,"abstract":"A total of 102 urban soil and surface dust samples were collected from Lanzhou of China to clarify the occurrences, sources, affecting factors, and health risks of 13 organophosphate esters (OPEs). The total concentration of 13 OPEs (Ʃ<sub>13</sub>OPEs) in urban soil and surface dust ranged from 80.1 to 749 and 244 to 4905<!-- --> <!-- -->ng/g, dominated by chlorinated OPEs (39.9% and 65.1%). The Ʃ<sub>13</sub>OPEs in the two media was higher in the central and eastern of Lanzhou due to local topography and wind direction. OPEs in the two media originated from industrial, traffic and commercial activities (37%–53.4%), atmospheric depositions (24.3%–31.3%), and OPEs-containing material emissions (14.5%–31.7%). Transport station number, residential/commercial area distribution, and road length were positively correlated with Ʃ<sub>13</sub>OPEs in the two media, suggesting that traffic activities are the main factors influencing the distribution of OPEs. Probabilistic non-cancer (< 1) and cancer (< 1×10<sup>-6</sup>) risks of human exposed to OPEs were low, mainly attributed to OPEs-containing material emissions (47.5%–62.0%) in urban soil and industrial/traffic activities (57.8%–92.2%) in surface dust. Reducing the frequency of human exposed to the two media and controlling the release of OPEs from pollution sources may mitigate population exposure risks.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"12 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142642822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
In the study, cotransport of fullerene nanoparticles (nC60) and mobile clay colloids (illite (ILL), kaolinite (KL), montmorillonite (ML)) in aquifer porous media and its relation to the aggregative interaction between these two types of particles was investigated. Minimal interaction occurred between nC60 and ILL, resulting in unaffected transport. Strong heteroaggregation between ML and nC60 resulted in not only significant retention of both particles during their cotransport but also the retention of nC60 in the media pre-injected with ML. Strong homoaggregation of KL caused strong straining effect and consequently retention of both KL and nC60 during their cotransport, however, did not cause retention of nC60 during the sequential injection of KL and nC60. Such aggregation behaviors were well demonstrated by the adsorption-sedimentation experiment, microscopic observation, the size and zeta-potential test, and model simulation. Based on the surface chemistry analysis, divalent-cation bridging between ML and nC60 and hydrogen bonding between KL particles were responsible for the heteroaggregation and the homoaggregation, respectively. The study demonstrated the specificity of the aggregation between the mobile clays and nC60 to the chemistry of the clays and its consequent effect on the cotransport of the particles, which is critical for assessment of the environmental risk of nC60.
{"title":"Cotransport of fullerene nanoparticles and clay colloids in porous media: the relation between aggregation and transport","authors":"Weiyong Zhan, Guansheng Liu, Enzhu Hu, Jiaquan Zhang, Lili Huo, Hua Zhong","doi":"10.1016/j.jhazmat.2024.136535","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2024.136535","url":null,"abstract":"In the study, cotransport of fullerene nanoparticles (<em>n</em>C<sub>60</sub>) and mobile clay colloids (illite (ILL), kaolinite (KL), montmorillonite (ML)) in aquifer porous media and its relation to the aggregative interaction between these two types of particles was investigated. Minimal interaction occurred between <em>n</em>C<sub>60</sub> and ILL, resulting in unaffected transport. Strong heteroaggregation between ML and <em>n</em>C<sub>60</sub> resulted in not only significant retention of both particles during their cotransport but also the retention of <em>n</em>C<sub>60</sub> in the media pre-injected with ML. Strong homoaggregation of KL caused strong straining effect and consequently retention of both KL and <em>n</em>C<sub>60</sub> during their cotransport, however, did not cause retention of <em>n</em>C<sub>60</sub> during the sequential injection of KL and <em>n</em>C<sub>60</sub>. Such aggregation behaviors were well demonstrated by the adsorption-sedimentation experiment, microscopic observation, the size and zeta-potential test, and model simulation. Based on the surface chemistry analysis, divalent-cation bridging between ML and <em>n</em>C<sub>60</sub> and hydrogen bonding between KL particles were responsible for the heteroaggregation and the homoaggregation, respectively. The study demonstrated the specificity of the aggregation between the mobile clays and <em>n</em>C<sub>60</sub> to the chemistry of the clays and its consequent effect on the cotransport of the particles, which is critical for assessment of the environmental risk of <em>n</em>C<sub>60</sub>.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"166 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142642825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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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