Journal of Environmental Science and Health Part A-toxic\/hazardous Substances & Environmental Engineering最新文献_第3页

Green synthesis of nickel oxide nanoparticles using Calotropis procera leaf extract for visible-light photocatalytic degradation of RBV-5R dye. 绿色合成氧化镍纳米颗粒利用牛角花叶提取物进行可见光光催化降解RBV-5R染料。

IF 2 4区环境科学与生态学

Journal of Environmental Science and Health Part A-toxic\/hazardous Substances & Environmental Engineering Pub Date : 2026-01-01 Epub Date: 2026-06-24 DOI: 10.1080/10934529.2026.2691604

Aiman Imtiaz, Rabid Ullah, Shagufta Rasool, Naveed Ahmad, Abdulkarim Alansari, Farooq Ahmad, Fatima Khitab

{"title":"Green synthesis of nickel oxide nanoparticles using Calotropis procera leaf extract for visible-light photocatalytic degradation of RBV-5R dye.","authors":"Aiman Imtiaz, Rabid Ullah, Shagufta Rasool, Naveed Ahmad, Abdulkarim Alansari, Farooq Ahmad, Fatima Khitab","doi":"10.1080/10934529.2026.2691604","DOIUrl":"10.1080/10934529.2026.2691604","url":null,"abstract":"The increasing release of azo dyes into wastewater presents a significant environmental challenge due to their chemical stability, toxicity, and persistence in aquatic environments. In this study, nickel oxide nanoparticles were green-synthesized using Calotropis procera leaf extract and employed as photocatalysts for the degradation of RBV 5R dye, a model azo dye. The biosynthesized nanoparticles were characterized using SEM, XRD, FT-IR, and TGA, confirming their morphological, structural, and thermal properties. Photocatalytic degradation experiments were conducted under varying conditions to optimize the degradation efficiency, with results showing that mildly acidic conditions (pH 4) and 5 mM hydrogen peroxide yielded the highest degradation. The reaction kinetics followed a pseudo-second order kinetic (R2 = 0.9989), and the catalyst reusability was evaluated over five cycles, showing a slight decrease in efficiency from 99% to 93.5% by the fifth cycle, confirming good operational stability. This study demonstrates that Calotropis procera-mediated nickel oxide nanoparticles offer a cost-effective and environmentally sustainable solution for the photocatalytic degradation of toxic azo dyes, with significant potential for industrial wastewater treatment.","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"908-922"},"PeriodicalIF":2.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148308380","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}

引用次数: 0

Effects of organochlorine pesticides (OCPs) on adolescent body composition: Integrating epidemiology and bioinformatics. 有机氯农药对青少年身体成分的影响：流行病学与生物信息学的结合。

IF 2 4区环境科学与生态学

Journal of Environmental Science and Health Part A-toxic\/hazardous Substances & Environmental Engineering Pub Date : 2026-01-01 Epub Date: 2026-06-26 DOI: 10.1080/10934529.2026.2692818

Mengnan Yang, Xiaodie Yao, Hua Jiang

{"title":"Effects of organochlorine pesticides (OCPs) on adolescent body composition: Integrating epidemiology and bioinformatics.","authors":"Mengnan Yang, Xiaodie Yao, Hua Jiang","doi":"10.1080/10934529.2026.2692818","DOIUrl":"10.1080/10934529.2026.2692818","url":null,"abstract":"Exposure to organochlorine pesticides (OCPs) may disrupt adolescent development; however, their precise impacts remain unclear. Using data from the National Health and Nutrition Examination Survey (NHANES) 2011-2016, we examined associations between OCPs and adolescent body composition indicators, including body mass index (BMI) z_score, appendicular lean mass (ALM), trunk fat (TRF), total fat (TOF), total lean mass (TLM), and total percent fat (TPF). We fitted several statistical models including linear regression, weighted quantile sum (WQS) regression, and Bayesian kernel machine regression (BKMR). Mediation analysis evaluated the effect of serum albumin, while network toxicology and molecular docking identified key targets and pathways. Linear regression showed that OCPs were negatively correlated with BMI z_score, ALM, TRF, TOF, TLM, and TPF in adolescents, particularly in males. The WQS and BKMR revealed a negative relationship between OCPs mixtures and BMI z_score, TRF, TOF, and TPF, with hexachlorobenzene (HCB) as the major contributor. Albumin mediated the negative effects of HCB on all body composition indicators. Preliminary bioinformatics analyses suggested that HCB may influence body composition through inflammation, metabolic regulation, and apoptosis involving the MAPK, PI3K-Akt, and Ras signaling pathways. These findings suggest that HCB exposure may adversely affect adolescent growth and nutritional health, particularly among males.","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"938-950"},"PeriodicalIF":2.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148330242","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}

引用次数: 0

In vivo assessment of naringenin-mediated amelioration of lead-induced testicular injury in rats: regulation of Nrf2/Keap1 and PINK1/Parkin pathways. 柚皮素介导的大鼠铅致睾丸损伤改善的体内评估：Nrf2/Keap1和PINK1/Parkin通路的调节

IF 2 4区环境科学与生态学

Journal of Environmental Science and Health Part A-toxic\/hazardous Substances & Environmental Engineering Pub Date : 2026-01-01 Epub Date: 2026-07-09 DOI: 10.1080/10934529.2026.2699582

Jing Zhu, Mengmeng Gao, Hao Ling, Phar Ku Ngwe, Chengxiang Guo, Yinan Hu, Jicang Wang

{"title":"In vivo assessment of naringenin-mediated amelioration of lead-induced testicular injury in rats: regulation of Nrf2/Keap1 and PINK1/Parkin pathways.","authors":"Jing Zhu, Mengmeng Gao, Hao Ling, Phar Ku Ngwe, Chengxiang Guo, Yinan Hu, Jicang Wang","doi":"10.1080/10934529.2026.2699582","DOIUrl":"10.1080/10934529.2026.2699582","url":null,"abstract":"This study investigated the protective effects of naringenin (Nar) against lead (Pb)-induced testicular injury in rats, focusing on the Nrf2/Keap1 antioxidant pathway and PINK1/Parkin-mediated mitophagy. To this end, male SD rats were exposed to Pb (60 mg/kg) and co-treated with Nar (50 mg/kg) for 8 consecutive weeks, followed by assessments via biochemical detection, oxidative stress (OS) evaluation, hematological examination, histopathological observation, qPCR, WB, and IHC analyses. Pb exposure caused hematological disturbances, reduced serum LH and T levels, and OS imbalance (lower GSH, SOD, CAT; higher MDA), aggravating testicular damage. Meanwhile, it suppressed the Nrf2/NQO1 pathway, elevated Keap1, impaired autophagy (elevated p62, declined LC3‑II/LC3‑I ratio), and induced aberrant accumulation of PINK1/Parkin. Co-treatment with Nar mitigated these alterations, ameliorating testicular injury, restoring redox homeostasis and serum reproductive hormone levels, and normalizing key molecular expressions in both pathways. In conclusion, Nar alleviates Pb-induced rat testicular damage by reactivating the Nrf2/Keap1 axis to suppress OS, and by restoring autophagic flux to facilitate PINK1/Parkin-mediated clearance of damaged mitochondria.","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"998-1013"},"PeriodicalIF":2.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148412056","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}

引用次数: 0

Removal of Crystal Violet and Reactive Green 19 from aqueous solutions using the brown macroalga Halopteris scoparia as a natural biosorbent. 用褐色大藻作为天然生物吸附剂去除水溶液中的结晶紫和活性绿19。

IF 2 4区环境科学与生态学

Journal of Environmental Science and Health Part A-toxic\/hazardous Substances & Environmental Engineering Pub Date : 2026-01-01 Epub Date: 2026-07-25 DOI: 10.1080/10934529.2026.2705092

Nevra Öztürk-Atay, İnci Tüney, Nurdan Akakçe

{"title":"Removal of Crystal Violet and Reactive Green 19 from aqueous solutions using the brown macroalga Halopteris scoparia as a natural biosorbent.","authors":"Nevra Öztürk-Atay, İnci Tüney, Nurdan Akakçe","doi":"10.1080/10934529.2026.2705092","DOIUrl":"10.1080/10934529.2026.2705092","url":null,"abstract":"Industrial discharges of toxic synthetic dyes, such as anionic Reactive Green 19 (RG-19) and cationic Crystal Violet (CV), threaten aquatic ecosystems. This study investigates the marine brown macroalga Halopteris scoparia as an untreated, mechanically ground biosorbent for removing RG-19 and CV from wastewater. Characterization confirmed a rough surface with a negative charge (-17.8 ± 4.08 mV), favoring cationic dye adsorption. Batch experiments optimized pH and dosage. Optimum removal occurred at pH 5.0 for RG-19 and pH 7.0 for CV. Using a biosorbent dosage of 20.0 g L-1, 95.2% of CV and 31.8% of RG-19 were removed from a 50.0 mg L-1 solution within 120.0 min. The maxımum experımental adsorption capacities were 33.5 and 5.5 mg g-1, respectively. Kinetics followed the pseudo-second-order model, while isotherms fit the Langmuir model for RG-19 and the Freundlich model for CV. Hydroxyl, carbonyl, and polysaccharide groups participated in dye binding. Due to electrostatic attraction, H. scoparia prefers cationic CV over anionic RG-19, proving to be a low-cost, sustainable biosorbent.","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"1095-1111"},"PeriodicalIF":2.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148591749","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}

引用次数: 0

Assessment of potentially toxic elements in soil and air: Application of bioindicator methods in environmentally polluted area. 土壤和空气中潜在有毒元素的评价：生物指示剂方法在环境污染地区的应用。

IF 2 4区环境科学与生态学

Journal of Environmental Science and Health Part A-toxic\/hazardous Substances & Environmental Engineering Pub Date : 2026-01-01 Epub Date: 2026-07-22 DOI: 10.1080/10934529.2026.2702247

Lenka Demková, Lenka Bobuľská, Gabriela Pinčáková, Magdaléna Bálintová, Alena Luptáková, Ivona Jančo, Ľuboš Harangozo, Július Árvay

{"title":"Assessment of potentially toxic elements in soil and air: Application of bioindicator methods in environmentally polluted area.","authors":"Lenka Demková, Lenka Bobuľská, Gabriela Pinčáková, Magdaléna Bálintová, Alena Luptáková, Ivona Jančo, Ľuboš Harangozo, Július Árvay","doi":"10.1080/10934529.2026.2702247","DOIUrl":"10.1080/10934529.2026.2702247","url":null,"abstract":"Environmental components in historically mined areas are frequently threatened by elevated concentrations of potentially toxic elements (PTEs), yet many sites remain insufficiently investigated. This pilot study assessed soil and airborne PTEs (As, Cd, Co, Cr, Cu, Hg, Mn, Ni, Pb, Zn) and soil macronutrients (Ca, K, Mg, Na) across mine, heap, and forest sites using bioindication methods. Soil enzyme activities were evaluated as indicators of soil health, while mosses (Pleurosium sp., Climacium sp.) and lichen (Pseudevernia sp.) were used for air biomonitoring. Soil contamination was assessed using the contamination factor (Cf), and atmospheric pollution using the relative accumulation factor (RAF). Cadmium exceeded legal limits at all sites, whereas heaps represented the primary pollution source, with average enrichments exceeding 47-fold for As, 80-fold for Cu, and 109-fold for Hg. Acidic soils and reduced macronutrient contents likely enhanced metal mobility and bioavailability. Principal component analysis showed strong associations among PTEs and negative correlations with Ca, K, and Mg. Acid and alkaline phosphatase activities were negatively, in some cases significantly, correlated with most PTEs. Biomonitoring confirmed atmospheric deposition, with mean RAF values of 3.59 for Cd and 2.81 for Pb. Pseudevernia sp. proved the most effective airborne accumulator.","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"1081-1094"},"PeriodicalIF":2.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148562309","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}

引用次数: 0

A comparison of bacterial community composition in hospital and clinical infections and hospital wastewater treatment systems, and their relative antimicrobial susceptibility and resistance profiles. 医院和临床感染和医院废水处理系统中细菌群落组成的比较及其相对的抗菌药物敏感性和耐药谱。

IF 2 4区环境科学与生态学

Journal of Environmental Science and Health Part A-toxic\/hazardous Substances & Environmental Engineering Pub Date : 2026-01-01 Epub Date: 2026-08-07 DOI: 10.1080/10934529.2026.2713892

Gisele Canan-Rochenbach, Marco A B Barreiros, Iane I Poyer, Marina J Batista-Barwinski, Wendell Pimentel-Almeida, Rodrigo Sant'Ana, Leo L Valle-Lacerda, Sandra G Hess-Espindola, Rogério Corrêa, Claudemir M Radetski

{"title":"A comparison of bacterial community composition in hospital and clinical infections and hospital wastewater treatment systems, and their relative antimicrobial susceptibility and resistance profiles.","authors":"Gisele Canan-Rochenbach, Marco A B Barreiros, Iane I Poyer, Marina J Batista-Barwinski, Wendell Pimentel-Almeida, Rodrigo Sant'Ana, Leo L Valle-Lacerda, Sandra G Hess-Espindola, Rogério Corrêa, Claudemir M Radetski","doi":"10.1080/10934529.2026.2713892","DOIUrl":"10.1080/10934529.2026.2713892","url":null,"abstract":"This study compared the bacterial community composition of hospital and clinical infections (i.e., biological samples from infected individuals) with that of a hospital wastewater treatment plant (HWTP) (i.e., hospital wastewater samples), focusing on similarities and differences in antimicrobial susceptibility and resistance of these samples. Microbiological analyses, including bacterial identification and antimicrobial susceptibility and resistance testing, were performed according to standardized protocols. An association was observed between hospital-derived isolates and antimicrobial susceptibility, reaching 79.2%, whereas isolates from the HWTP showed a higher association with antimicrobial resistance (41.7%). Resistance rates were pronounced (>30%) across all bacterial groups isolated from the HWTP. Enterobacteriaceae exhibited 34.3% resistance, non-Enterobacteriaceae 52.2%, Streptococcaceae 52.7%, and Micrococcaceae 60.4%. Corresponding susceptibility rates were 50.1%, 36.5%, 26.3%, and 33.3%, respectively. Thus, 15 bacteria strains isolated from hospital/clinic samples and 39 bacteria strains isolated from HWTP samples showed resistance to 3 or more antimicrobials tested. No more than 50% of HWTP isolates were susceptible to the tested antimicrobial agents. In contrast, bacteria isolated from hospital and clinical infections showed overall resistance rates below 10% for each bacterial group. These results highlight the urgent need for more effective hospital wastewater treatment strategies to minimize the emergence and dissemination of antimicrobial resistance.","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"1185-1198"},"PeriodicalIF":2.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148684741","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}

引用次数: 0

Phase redistribution of chlorobenzene in compacted low-permeability soil under coupled environmental conditions experiments, machine learning, and molecular dynamics. 耦合环境条件下压实低渗透土壤中氯苯的相重分布实验、机器学习和分子动力学。

IF 2 4区环境科学与生态学

Journal of Environmental Science and Health Part A-toxic\/hazardous Substances & Environmental Engineering Pub Date : 2026-01-01 Epub Date: 2026-08-03 DOI: 10.1080/10934529.2026.2712142

Long Xu, Chenruolan Xu, Jingjing Liu, Fusheng Zha, Chunjie Ji, Qiao Wang, Jinkun Huang

{"title":"Phase redistribution of chlorobenzene in compacted low-permeability soil under coupled environmental conditions experiments, machine learning, and molecular dynamics.","authors":"Long Xu, Chenruolan Xu, Jingjing Liu, Fusheng Zha, Chunjie Ji, Qiao Wang, Jinkun Huang","doi":"10.1080/10934529.2026.2712142","DOIUrl":"10.1080/10934529.2026.2712142","url":null,"abstract":"Phase redistribution of organic contaminants in low-permeability soils strongly influences their persistence, mobility, and remediation, its dependence on coupled environmental conditions remains poorly understood. In this study, chlorobenzene was selected as a representative dense non-aqueous phase liquid contaminant, and its redistribution among vapor, free, dissolved, and adsorbed phases in low-permeability soil was investigated by varying temperature, relative humidity, and dry density. A sequential multi-phase extraction framework was developed to quantify phase-specific fractions, while tree-based machine learning was used to predict redistribution and identify the relative importance of environmental drivers. Molecular dynamics simulations were further conducted to interpret observed trends from the perspective of adsorption-desorption and confined diffusion at the clay scale. Results showed that the vapor phase dominated under most conditions, whereas the free phase remained suppressed. Temperature exerted the strongest control by promoting volatilization and weakening interfacial retention, while relative humidity and dry density jointly regulated aqueous and adsorption domains through changes in water film development and pore structure. This integrated framework provides a quantitative basis for evaluating contaminant persistence and optimizing remediation strategies. In particular, the vapor-phase dominance under thermal driving indicates that vapor extraction and capture should be prioritized during thermally enhanced remediation of chlorobenzene-contaminated low-permeability soils.","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"1133-1149"},"PeriodicalIF":2.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148663974","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}

引用次数: 0

Effect-based assessment of laboratory- and full-scale advanced wastewater treatment using combined ozonation and powdered activated carbon. 臭氧氧化和粉状活性炭联合深度处理实验室和大规模废水的效果评估。

IF 2 4区环境科学与生态学

Journal of Environmental Science and Health Part A-toxic\/hazardous Substances & Environmental Engineering Pub Date : 2026-01-01 Epub Date: 2026-08-04 DOI: 10.1080/10934529.2026.2711513

Catalina Trejos-Delgado, Andrea Dombrowski, Jörg Oehlmann

{"title":"Effect-based assessment of laboratory- and full-scale advanced wastewater treatment using combined ozonation and powdered activated carbon.","authors":"Catalina Trejos-Delgado, Andrea Dombrowski, Jörg Oehlmann","doi":"10.1080/10934529.2026.2711513","DOIUrl":"10.1080/10934529.2026.2711513","url":null,"abstract":"The use of advanced treatment processes such as ozonation and activated carbon filtration in full-scale systems is showing promising results worldwide for removing micropollutants (MPs) and reducing ecotoxicological effects from wastewater (WW). In this study, a combined advanced treatment process consisting of ozonation followed by powdered activated carbon (PAC) filtration was evaluated at laboratory-scale and full-scale in a municipal wastewater treatment plant (WWTP) using the same WW collected during a single sampling campaign. A battery of in vitro assays was applied to assess the elimination of toxic effects in both systems. The laboratory-scale treatment operated at a higher ozone dose (0.7 mg O3/mg DOC (dissolved organic carbon)) than the full-scale system (0.1 mg O3/mg DOC) and achieved higher removal efficiencies for baseline toxicity, estrogenic activity, androgenic activity, and dioxin-like activity. Baseline toxicity removal reached 100% in the laboratory-scale treatment compared with 92% at full scale. Estrogenic activity removal was 100% in the laboratory-scale treatment but remained substantially lower at full scale with 62%. The findings indicate that ozone dose is a major explanatory variable influencing treatment performance and emphasize the importance of optimized ozone dosing and post-treatment processes to minimize residual toxicity and transformation products.","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"1123-1132"},"PeriodicalIF":2.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148701531","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}

引用次数: 0

Environmental drivers influencing polycyclic aromatic hydrocarbon (PAH) mobilization in rainwater: Insights from physicochemical correlations in Ondo State, Nigeria. 影响雨水中多环芳烃（PAH）动员的环境驱动因素：来自尼日利亚翁多州物理化学相关性的见解。

IF 2 4区环境科学与生态学

Journal of Environmental Science and Health Part A-toxic\/hazardous Substances & Environmental Engineering Pub Date : 2026-01-01 Epub Date: 2026-03-03 DOI: 10.1080/10934529.2026.2636400

Ilemobayo Ifedayo Oguntimehin, Thompson Faraday Ediagbonya, Oluwadarasimi Esther Omoyinmi

{"title":"Environmental drivers influencing polycyclic aromatic hydrocarbon (PAH) mobilization in rainwater: Insights from physicochemical correlations in Ondo State, Nigeria.","authors":"Ilemobayo Ifedayo Oguntimehin, Thompson Faraday Ediagbonya, Oluwadarasimi Esther Omoyinmi","doi":"10.1080/10934529.2026.2636400","DOIUrl":"10.1080/10934529.2026.2636400","url":null,"abstract":"This study investigated the influence of seasonal meteorological conditions and physicochemical parameters on the mobilization of polycyclic aromatic hydrocarbons (PAHs) in harvested rainwater across Ondo State, Nigeria, a petroleum impacted region. Rainwater samples were collected monthly from April to August 2024 and analyzed for sixteen United States Environmental Protection Agency priority PAHs, alongside pH and electrical conductivity. The objective was to evaluate the combined effects of rainfall intensity and water chemistry on PAH occurrence and associated health risks. Total PAH concentrations increased markedly during the mid wet season, particularly between July and August, coinciding with intense rainfall. Both low and high molecular weight PAHs, including fluoranthene, pyrene, phenanthrene and anthracene, were dominant. Significant positive correlations were observed between total PAHs and pH and electrical conductivity, indicating strong physicochemical control on PAH behavior in rainwater. Health risk assessment showed hazard quotients exceeding unity for oral and dermal exposure, while incremental lifetime cancer risk values surpassed recommended limits, especially for children. Diagnostic ratios suggested predominantly pyrogenic sources. Overall, seasonal rainfall and water chemistry jointly regulate PAH mobilization and associated health risks in harvested rainwater.","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"125-134"},"PeriodicalIF":2.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147348398","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}

引用次数: 0

Development of KOH-impregnated activated carbon from coal for carbon dioxide capture. 煤中氢氧化钾浸渍活性炭捕集二氧化碳的研制。

IF 2 4区环境科学与生态学

Journal of Environmental Science and Health Part A-toxic\/hazardous Substances & Environmental Engineering Pub Date : 2026-01-01 Epub Date: 2026-03-05 DOI: 10.1080/10934529.2026.2636414

Deepesh Kumar Biswal, Dipa Das, Kashinath Barik, Sushanta Kumar Behera

{"title":"Development of KOH-impregnated activated carbon from coal for carbon dioxide capture.","authors":"Deepesh Kumar Biswal, Dipa Das, Kashinath Barik, Sushanta Kumar Behera","doi":"10.1080/10934529.2026.2636414","DOIUrl":"10.1080/10934529.2026.2636414","url":null,"abstract":"With increasing globalization and industrialization, reducing carbon dioxide (CO2) emissions has become a critical global challenge. The objective of this study was to investigate the potential of coal-derived activated carbon (AC) for CO2 adsorption under environmentally relevant conditions. In the present study, AC derived from peat and lignite coal was synthesized by a chemical activation method using a wide range of KOH with impregnation ratios (1:1, 1:2, 1:4, 1:6, and 1:8), enabling precise control over micropore development. This study identifies the optimum impregnation ratio that maximizes the ultra-micropore volume, which is directly responsible for enhanced CO2 adsorption. The prepared materials were systematically characterized by proximate and ultimate analyses, Brunauer-Emmett-Teller surface area measurements, thermogravimetric analysis, Fourier-transform infrared spectroscopy, X-ray diffraction, and scanning electron microscopy. CO2 adsorption experiments were conducted by the Autosorb iQ gas sorption analyzer at near-ambient temperature and pressure. The lignite-derived AC at a 1:8 impregnation ratio showed the highest CO2 uptake (46.27 mg g-1) with a breakthrough time of 204.7 min. The most important novelty of our work is the productive utilization of low-grade coal, as a viable precursor and aim is to convert such low-grade coal for the production of high-performance and cost-effective CO2 adsorbents, which aligns with sustainable materials development and carbon management.","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"153-172"},"PeriodicalIF":2.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147365482","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}

引用次数: 0