环境科学与生态学最新文献

{"title":"Removal of sulfamethoxazole by Fe(III)-activated peracetic acid combined with ascorbic acid.","authors":"Yiqing Liu, Linghan Xu, Xin Li, Shixiang Wang","doi":"10.1080/09593330.2024.2442779","DOIUrl":"10.1080/09593330.2024.2442779","url":null,"abstract":"<p><p>Ascorbic acid (AA) was used as a reducing agent to improve the Fe(III)-activated peracetic acid (PAA) system for the removal of sulfamethoxazole (SMX) in this work. The efficiency, influencing factors and mechanism of SMX elimination in the AA/Fe(III)/PAA process were studied. The results exhibited that AA facilitated the reduction of Fe(III) to Fe(II) and subsequently improved the activation of PAA and H₂O₂. Various radicals, including organic radicals (e.g. CH₃C(O)O• and CH₃C(O)OO•) and hydroxyl radical (HO•), were rapidly formed from the activated PAA and H₂O₂, resulting in SMX removal. Increasing dosages of PAA and Fe(III) contributed to enhanced SMX degradation, while excessive PAA and Fe(III) did not further promote SMX degradation. Due to the radicals' quenching effect, excess AA hindered SMX elimination in the AA/Fe(III)/PAA process. The presence of <math><msubsup><mrow><mi>HCO</mi></mrow><mn>3</mn><mo>-</mo></msubsup></math> and Cl^- inhibited SMX removal in this system, whereas <math><msubsup><mrow><mi>NO</mi></mrow><mn>3</mn><mo>-</mo></msubsup></math>, <math><msubsup><mrow><mi>SO</mi></mrow><mn>4</mn><mrow><mn>2</mn><mo>-</mo></mrow></msubsup></math> and natural organic matter had little impact on SMX degradation. The transformation pathways of SMX in the AA/Fe(III)/PAA system included hydroxylation, bond cleavage and amino oxidation. This research provides a strategy to enhance the Fe(III)-activated PAA system for the elimination of refractory organic pollutants.</p>","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"2670-2680"},"PeriodicalIF":2.2,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142906754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Optimal Design of National Food Waste Monitoring for the Food Service Sector","authors":"Joel Kostensalo, Kirsi Silvennoinen, Marita Kettunen, Vesa Lampi","doi":"10.1016/j.jclepro.2025.145889","DOIUrl":"https://doi.org/10.1016/j.jclepro.2025.145889","url":null,"abstract":"The countries of the European Union have committed to monitoring and lowering food waste (FW) levels, including in the food service sector. In this work, the relative importance of factors such as food service type, outlet size, seasonal and weekday variation, length of measurement period for monitoring originally edible and total FW. is explored T We provide the first sample size estimates needed for national level monitoring, and take the length of the observation period carefully into account and whether the food service type, outlet size, and regional variation are controlled for, and what size of a change at the national FW level one wants to be able to observe. Two datasets collected as part of the Finnish national monitoring system were used. The first consisted of 192 two-week measurements from outlets of various sizes. The second consisted of three long-term (1.5–2 year) monitoring efforts. The food service type is by far the most important factor, explaining 66% and 54% of the variance in edible and total FW, respectively. The next factor is monthly variation (13% and 10%), municipal level variation (5% and 9%), and weekday-variation (6% and 5%), with the outlet size being relatively unimportant (2% and 8%). At the smallest, a sample size of n=68 is needed to observe a change of 30% in the total national FW levels. With two-week measurements n=72 is sufficient, highlighting the fact that longer measurement periods are not resource efficient, because between-outlet variation tends to be greater than within-outlet variation. The results can be used to develop national data collection in other countries, to optimise the limited resources available for monitoring, and to improve the comparability of measurements between years.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"36 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144189002","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}

{"title":"Comprehensive assessment of radiological hazards in chromite mines at Khanozai and Muslim Bagh, Balochistan, Pakistan.","authors":"Nisar Ahmad, Niamat Ullah, Muhammad Bakhsh, Hannan Younis","doi":"10.1080/10256016.2025.2467381","DOIUrl":"10.1080/10256016.2025.2467381","url":null,"abstract":"<p><p>The concentrations of natural radioactivity in soil samples collected from chromite mines of two different towns, Khanozai and Muslim Bagh, districts of Pishin and Killa Saifullah, respectively, were measured using a high purity germanium (HPGe) detector. The average values of ²²⁶Ra, ²³²Th and ⁴⁰K in soil of Khanozai chromite mines were found to be 26.414, 37.321 and 404.561 Bq kg^-1, respectively. In Muslim Bagh chromite mines, these values were found to be 17.59, 29.677 and 380.475 Bq kg^-1, respectively. The maximum average values of radium equivalent (Ra_eq), external hazard index (H_ex) and internal hazard index (H_in) were found to be 110.851, 0.299 and 0.356 Bq kg^-1, respectively, in chromite mines of Khanozai, while the minimum average values were found to be 89.253, 0.276 and 0.275 Bq kg^-1, respectively, in Muslim Bagh chromite mines. Similarly, maximum average values of absorbed dose rate (D_R), external absorbed dose rate (D_out) and internal absorbed dose rate (D_in) were found to be 50.742, 54.651 and 77.058 nGy h^-1, respectively, in soil of Khanozai chromite mines while the minimum average values were found to be 41.311, 44.385 and 62.583 nGy h^-1, respectively, in Muslim Bagh chromite mines. Also, the maximum average values of annual effective dose risk (AEDR), gamma activity index (I_γ) and alpha activity index (I_α) were found to be 2.30 × 10^-1 mSv y^-1, 0.409 and 0.132, respectively, in soil of Khanozai chromite mines while the minimum average values were found to be 2.02 × 10^-1 mSv y^-1, 0.333 and 0.087, respectively, in Muslim Bagh chromite mines. The values were found to be below the world permissible range. Therefore, it is concluded that the chromite mines under the study have no health hazards.</p>","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":" ","pages":"282-297"},"PeriodicalIF":1.1,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143483097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"First insight on the effective removal of pentoxifylline drug under visible-light-driven irradiation with ZnO catalyst obtained via precipitation.","authors":"Maria Paiu, Lidia Favier, Doina Lutic, Raluca Maria Hlihor, Dumitru Claudiu Sergentu, Veronique Alonzo, Maria Gavrilescu","doi":"10.1016/j.jenvman.2025.125420","DOIUrl":"10.1016/j.jenvman.2025.125420","url":null,"abstract":"<p><p>This work demonstrates for the first time that a ZnO catalyst, prepared by precipitation and calcined at 450 °C (ZnO_450), can effectively degrade the drug pentoxifylline (PTX) under visible-light irradiation. Under all evaluated conditions, the kinetics of photocatalytic degradation followed a pseudo-first-order model. The catalyst performance was found to be optimal at a dosage of 0.8 g/L, a drug concentration of 1 mg/L, and under alkaline conditions (pH 11), achieving a pollutant elimination efficiency of 94 % after 150 min of reaction time. The key reactive species involved in PTX degradation were identified as HO^·, [Formula: see text] and e^-, as confirmed by scavenger tests using isopropyl alcohol, benzoquinone, potassium persulfate and ammonium oxalate. It was observed that the pollutant photodegradation remained efficient in the presence of inorganic ions (chloride, nitrate, and bicarbonate), in real water samples, and that the catalyst maintained its stability across five consecutive catalytic cycles, confirming its chemical stability and photocatalytic reliability. Density functional theory calculations were further used to understand the initial steps in the degradation process of PTX concerning its ability to be adsorbed on electron-rich (conduction band) and hole sites (valence band). Finally, phytotoxicity tests confirmed a consistent decrease in toxicity in photocatalytically treated solutions, highlighting that the ZnO_450/vis setup is a promising option for the removal of emerging water contaminants.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"386 ","pages":"125420"},"PeriodicalIF":8.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144092419","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":"Diclofenac activates antioxidant defenses and affects ovarian growth in the freshwater shrimp Macrobrachium borellii.","authors":"Marina Zanitti, Ariel Calabró López, Ismael E Lozano, Daniel A Medesani, Ariadna G Battista, Laura S López Greco, Enrique M Rodríguez","doi":"10.1093/etojnl/vgaf070","DOIUrl":"10.1093/etojnl/vgaf070","url":null,"abstract":"<p><p>Ovigerous females of the freshwater shrimp Macrobrachium borellii were exposed to three sublethal concentrations (0.01, 0.1, and 1 mg/L) of diclofenac sodium salt for 74 days to measure several variables related to both reproductive success and oxidative stress. Although no differences (p > 0.05) were noted in either the egg incubation time or the postlarvae survival, the number of hatched postlarvae (actual fecundity) decreased to some extent, together with a low percentage of abnormal larvae. At the end of the assay, the ovarian size of rematurating shrimps exposed to 1 mg/L of diclofenac was significantly (p < 0.05) higher than that of controls, showing an acceleration of ovarian growth by the effect of this drug. Taken together, however, these results showed no evident increase of reproductive output. Concerning oxidative stress, both the reduced glutathione level and total antioxidant capacity were enhanced without altering glutathione-S-transferase activity and lipid peroxidation. Concomitantly, no damage to the hepatopancreas structure was observed in females. We conclude that diclofenac caused an imbalance in gonadal growth, likely by affecting the endocrine control exerted by prostaglandins, whereas oxidative stress could be efficiently controlled by the induction of antioxidant defenses.</p>","PeriodicalId":11793,"journal":{"name":"Environmental Toxicology and Chemistry","volume":" ","pages":"1647-1654"},"PeriodicalIF":3.6,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143728872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Genetic Load, Eco-Evolutionary Feedback, and Extinction in Metapopulations.","authors":"Oluwafunmilola Olusanya, Ksenia Khudiakova, Himani Sachdeva","doi":"10.1086/735562","DOIUrl":"https://doi.org/10.1086/735562","url":null,"abstract":"<p><p>AbstractHabitat fragmentation poses a significant risk to population survival, causing both demographic stochasticity and genetic drift within local populations to increase, thereby increasing genetic load. Higher load causes population numbers to decline, which reduces the efficiency of selection and further increases load, resulting in a positive feedback that may drive entire populations to extinction. Here, we investigate this eco-evolutionary feedback in a metapopulation consisting of local demes connected via migration, with individuals subject to deleterious mutation at a large number of loci. We first analyze the determinants of load under soft selection, where population sizes are fixed, and then build on this to understand hard selection, where population sizes and load coevolve. We show that under soft selection, very little gene flow (less than one migrant per generation) is enough to prevent fixation of deleterious alleles. By contrast, much higher levels of migration are required to mitigate load and prevent extinction when selection is hard, with critical migration thresholds for metapopulation persistence increasing sharply as the genome-wide deleterious mutation rate becomes comparable to the baseline population growth rate. Moreover, critical migration thresholds are highest if deleterious mutations have intermediate selection coefficients but lower if alleles are predominantly recessive rather than additive (due to more efficient purging of recessive load within local populations). Our analysis is based on a combination of analytical approximations and simulations, allowing for a more comprehensive understanding of the factors influencing load and extinction in fragmented populations.</p>","PeriodicalId":50800,"journal":{"name":"American Naturalist","volume":"205 6","pages":"617-636"},"PeriodicalIF":2.4,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144188448","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":"Is double-blind peer review detrimental to scientific integrity?","authors":"Sameh Eltaybani","doi":"10.1093/etojnl/vgaf078","DOIUrl":"https://doi.org/10.1093/etojnl/vgaf078","url":null,"abstract":"","PeriodicalId":11793,"journal":{"name":"Environmental Toxicology and Chemistry","volume":"44 6","pages":"1449-1450"},"PeriodicalIF":3.6,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144179519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"The speciation and thermal transformation characteristics of fluorine and chlorine in industrial wastes.","authors":"Peng-Tao Cai, Tong Chen, Bei Chen, Yu-Chun Wang, Xiao-Jun Ma, Zeng-Yi Ma, Jian-Hua Yan","doi":"10.1080/09593330.2024.2445326","DOIUrl":"10.1080/09593330.2024.2445326","url":null,"abstract":"<p><p>The study investigated the chlorine and fluorine contents in three types of industrial solid waste: textile, plastic, and paper waste, utilizing various analytical methods. Significant variations in the proportions of organic and inorganic chlorine were observed among the waste types. During heat treatment, the majority of chlorine converts to a volatile state, with fixed chlorine content showing a correlation with organic chlorine. Organic fluorine predominated in all waste types, predominantly transitioning to a volatile state during heat treatment. Notably, textile waste exhibited unique behaviour, potentially converting some organic fluorine into a fixed state due to flame retardant additives. Analysis of flue gas during practical co-incineration of industrial solid waste revealed a substantial increase in chloride concentration, accompanied by the presence of organic chlorides such as chlorobenzene, methane chloride, and ethane chloride. These findings underscore the importance of implementing preventive measures against chlorine and fluorine emissions during industrial waste co-incineration.</p>","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"2719-2728"},"PeriodicalIF":2.2,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143002632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Adsorption behaviour and mechanism of natural citric acid modified MOF-808 for Cr(III) and Cr(III)-EDTA in water and site energy analysis.","authors":"Hao Zhang, Jiahong Wang, Peiling Han, Zhi Hu","doi":"10.1080/09593330.2024.2438890","DOIUrl":"10.1080/09593330.2024.2438890","url":null,"abstract":"<p><p>Industrial wastewater often contains potentially toxic metals and it's chelates, posing serious threats to human health and aquatic ecosystems, and adsorption is frequently used for the minimization of potentially toxic metals from water. In this study, citric acid modified MOF-808 (MOF-808-CA) was prepared by using citric acid to modify MOF-808 for the removal of Cr(III) and Cr(III)-EDTA from wastewater. MOF-808-CA with the BET surface area of 653.59 m² g^-1 and the pore volumes of 0.467 cm³ g^-1 was successfully synthesized. The adsorption of Cr(III) and Cr(III)-EDTA by MOF-808-CA was 40.46 and 17.03 mg g^-1 at pH 4.0 and 25°C, respectively. The adsorption isotherms and adsorption kinetics of Cr(III) and Cr(III)-EDTA were summarized using Langmuir-Freundlich isothermal adsorption model and the pseudo-second-order model. Even in high salinity wastewater (35,000 mg L^-1), MOF-808-CA displayed a strong affinity for Cr(III) and Cr(III)-EDTA. The site energy (<i>E</i>*) values reduced with the increasing of adsorption capacities, and Cr(III) and Cr(III)-EDTA firstly dominated the high-energy adsorption sites before low-energy adsorption sites. The average site energies for the adsorption of Cr(III) and Cr(III)-EDTA by MOF-808-CA were 26.7 and 24 kJ mol^-1, respectively, and the differences in the average site energies further illustrated the essential differences in their adsorption mechanisms. The adsorption by electrostatic adsorption and surface complexation were the main adsorption mechanisms for Cr(III) on MOF-808-CA, whereas hydrogen bonding and complexation were the main adsorption mechanisms for Cr(III)-EDTA on MOF-808-CA. The results showed that the MOF-808-CA adsorbent has a great potential for the removal of both Cr(III) and Cr(III)-EDTA from aqueous solutions.</p>","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"2509-2520"},"PeriodicalIF":2.2,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142909501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Integrated analysis of lethal and sublethal effects of rice pesticides on the natural predator Microvelia pulchella (Insecta: Hemiptera: Veliidae): insights into direct and indirect effects.","authors":"Arledys Albino-Bohórquez, Yeisson Gutiérrez, German Bohórquez, Tito Bacca","doi":"10.1093/etojnl/vgaf076","DOIUrl":"10.1093/etojnl/vgaf076","url":null,"abstract":"<p><p>This study examines the lethal and sublethal effects of the commonly used rice crop pesticides cypermethrin, butachlor, and carbendazim on the broad-shouldered water strider, Microvelia pulchella. Conducted under controlled conditions, the research aimed to elucidate the direct and indirect impacts of these pesticides on key life-history traits of this aquatic predatory insect. Initial dose-response bioassays revealed that cypermethrin was the most toxic, with a median lethal concentration (LC50) of 0.79 ppm, followed by butachlor (LC50 = 2.53 ppm) and carbendazim (LC50 = 15.63 ppm). Subsequently, using structural equation modeling, we investigated causal relationships between sublethal pesticide exposure and life-history traits in M. pulchella. The results demonstrated that sublethal concentrations induced significant biological disruptions, with pronounced sex-specific effects on wing development, body size, longevity, fecundity, and offspring hatching success. Cypermethrin exposure markedly reduced female body size and longevity in both sexes, indirectly diminishing egg production and offspring hatching success. Butachlor similarly reduced body size in both sexes and male longevity, with cascading effects on reproductive output. Specifically, decreased egg production was linked to smaller female body size, reduced male longevity, and an indirect effect of butachlor on female longevity mediated by body size. In contrast, carbendazim exposure led to reductions in body size and significant impairments in wing development. Its effects on fertility, however, were dose-dependent, showing a slight decline at lower concentrations but an unexpected increase at higher doses, suggesting a complex, nonlinear relationship between exposure levels and reproductive outcomes. These findings highlight the detrimental ecological consequences of cypermethrin, butachlor, and carbendazim on M. pulchella, disrupting its role as a natural predator and impairing its ability to regulate pest populations. The study concludes with evidence-based recommendations for integrated pest management practices and regulatory policies aimed at preserving beneficial predatory species like M. pulchella and fostering sustainable agricultural systems.</p>","PeriodicalId":11793,"journal":{"name":"Environmental Toxicology and Chemistry","volume":" ","pages":"1672-1685"},"PeriodicalIF":3.6,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143669452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}