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

{"title":"Microbial-mediated biodegradation of polyethylene terephthalate (PET) by marine bacterial isolates: A sustainable approach to bioprocess development.","authors":"Ayisha Aman Ullah, Khadeeja Qadeer, Sumaira Javaid, Raheela Rahmat Zohra, Aliya Riaz","doi":"10.1080/10934529.2026.2741655","DOIUrl":"https://doi.org/10.1080/10934529.2026.2741655","url":null,"abstract":"<p><p>The current research focuses on the biodegradation of PET plastic by marine bacteria isolated from Arabian Sea. Each purified strain was subjected to PET biodegradation profiling in order to select most potent PET degrading bacteria. On the basis of weight loss method (%), two efficient marine strains were chosen and subjected to ribotyping and optimization studies <i>via</i> OFAT approach. For further evaluation of PET degradation, FTIR and SEM analysis were carried out. The two efficient PET bio-degraders were identified as <i>Bacillus subtilis</i> MPW7 and <i>Priestia endopytica</i> MPW8. The optimum temperature for PET degradation was 35 °C, at which <i>Bacillus subtilis</i> MPW7 and <i>Priestia endophytica</i> MPW8 achieved PET weight losses of 10.7 1 ± 0.23% and 12.09 ± 0.045%, respectively. The optimum pH was 6.5, under which <i>Bacillus subtilis</i> MPW7 exhibited a PET weight loss of 21 ± 0.89%, while <i>Priestia endophytica</i> MPW8 achieved the highest degradation efficiency with a weight loss of 30 ± 1.0%. Qualitative screening of plastic degrading enzymes showed that both marine bacteria are lipase, esterase, protease and peroxidase producers. FTIR spectral studies confirmed the PET biodegradation by selected isolates. Modifications in the structural configuration of PET plastic after bio-treatment were also noticed through SEM.</p>","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"1-12"},"PeriodicalIF":2.0,"publicationDate":"2026-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149110457","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":"Wastewater surveillance of tetracycline resistance genes: a global bibliometric and trend analysis.","authors":"Tirmizhi Munkaila Abubakar, Nor Azimah Mohd Zain","doi":"10.1080/10934529.2026.2740561","DOIUrl":"https://doi.org/10.1080/10934529.2026.2740561","url":null,"abstract":"<p><p>Tetracycline resistance genes (TRGs) in wastewater pose environmental and public health risks through antimicrobial resistance dissemination. However, the global development of wastewater surveillance for TRG monitoring remains insufficiently characterized. Scopus-indexed TRG wastewater surveillance research (2001-2025) was analyzed using bibliometric methods, yielding 700 articles after screening. Data were cleaned using biblioMagika^® and OpenRefine, with VOSviewer used for keyword co-occurrence analysis. Temporal trends were assessed using the Mann-Kendall test, Sen's slope estimator, and Hamed-Rao correction for serial autocorrelation. Publication output increased significantly (τ = 0.891, <i>P</i> = 1.15 × 10^-9; Sen's slope ≈ 3.84 publications/year) and remained significant after autocorrelation correction (N/N* ≈ 3.16, <i>P</i> = 6.16 × 10^-4). China and the United States led publication output (370 and 99 publications, respectively), while publication volume was not significantly associated with normalized citation impact (<i>r</i> = 0.163, <i>P</i> = 0.436). Environmental science and microbiology dominated. Six thematic clusters centered on antibiotic resistance genes, horizontal gene transfer, metagenomics, and wastewater treatment. TRG wastewater surveillance research is expanding rapidly, highlighting the need for international collaboration, methodological standardization, and capacity building within a One Health framework.</p>","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"1-26"},"PeriodicalIF":2.0,"publicationDate":"2026-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149110484","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 overlooked changes: health co-benefits from the reduction of ambient carbon monoxide in China.","authors":"Zongshuang Wang, Jungang Lv","doi":"10.1080/10934529.2026.2740971","DOIUrl":"https://doi.org/10.1080/10934529.2026.2740971","url":null,"abstract":"<p><p>Previous studies have primarily emphasized the emission reduction benefits of particulate matter and nitrogen oxides, while largely overlooking the substantial long-term decline in ambient carbon monoxide (CO) concentrations. This paper systematically evaluated the spatiotemporal trends, driving factors, and associated health co-benefits of ambient CO reductions across 337 Chinese cities during 2015-2023. Owing to the stringent CO concentration limits established in China's Ambient Air Quality Standard (GB 3095-2012), which are among the most rigorous worldwide, nationwide ambient CO concentrations declined by approximately 30-40% over the study period, with the largest reduction (45%) occurring in the Beijing-Tianjin-Hebei region. Meteorological normalization based on a Random Forest model, combined with the BenMAP-CE health impact assessment framework, revealed that more than 90% of the observed decline was attributable to anthropogenic emission control measures rather than meteorological variability. These improvements were primarily driven by progressively stricter emission standards, enhanced combustion efficiency, and the widespread adoption of cleaner fuels. The reduction in ambient CO exposure yielded an estimated number of deaths attributable to the difference in the modeled burden between 2015 and 2023 concentrations of approximately 110,000-360,000 nationwide, corresponding to economic benefits of CNY 110-360 billion. These findings highlight the substantial health benefits of sustained CO emission mitigation and underscore the importance of CO control strategies.</p>","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"1-10"},"PeriodicalIF":2.0,"publicationDate":"2026-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149074384","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":"Banana pseudostem-derived hydrochar mitigates aluminum oxide nanoparticle toxicity to microalgae: implications for sustainable phosphate binder application in contaminated waters.","authors":"Santhana Kumar Vanniaraj, Dhruba Jyoti Sarkar, Soma Das Sarkar, Tanushree Banerjee, Suvra Roy, Partha Sarkar, Anjon Talukder, Basanta Kumar Das","doi":"10.1080/10934529.2026.2738494","DOIUrl":"https://doi.org/10.1080/10934529.2026.2738494","url":null,"abstract":"<p><p>Aluminum oxide nanoparticles (Al₂O₃) are used as a phosphate binder for controlling harmful cyanobacterial blooms in waters; however, concerns related to their toxic effects on non-target microalgae limit their long-term field application. In the present study, banana pseudostem-derived hydrochar was combined with Al₂O₃ to form a composite (HCAL). The hydrochar and Al₂O₃ concentrations in HCAL (0.5:2) were selected based on preliminary dosage-optimization trials. Then, toxicity assessment was done by exposing pre-grown microalgae <i>Graesiella emersonii</i> MN877773 at three concentrations of HCAL (115, 230, 460 mg L^-1) and compared with negative (Al₂O₃) and positive control (BG11 media). Microalgae grown in HCAL treatment showed a 29-49% higher growth rate than Al₂O₃ treatment. At all tested concentrations, HCAL treatment resulted in significantly higher (<i>p</i> ≤ 0.05; 19-64%) chlorophyll content in microalgae compared to the control. A significant upregulation of genes involved in carbon fixation and photosynthesis, such as <i>rbcL</i>, <i>psaB</i> and <i>psbc</i> genes, was observed at 230 mg L^-1 HCAL exposure. Microalgae were found to overcome the stress <i>via</i> increasing lipid synthesis and a strong antioxidant response. These findings demonstrate the potential of utilizing banana pseudostem-derived hydrochar as an eco-engineering amendment to mitigate the toxicity of aluminum oxide as a phosphate-binding agent in contaminated waters.</p>","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"1-11"},"PeriodicalIF":2.0,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149069645","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":"Potentially toxic elements and physicochemical parameters of corn and potato chips consumed in Iraq: dietary exposure and health risk evaluation.","authors":"Najeba Farhad Salih, Hiwa Mohammad Qadr, Saddon Taha Ahmad","doi":"10.1080/10934529.2026.2737172","DOIUrl":"https://doi.org/10.1080/10934529.2026.2737172","url":null,"abstract":"<p><p>Corn based and potato based chips are widely consumed snack foods that may act as unintended sources of potentially toxic element (PTE) exposure through raw material contamination, processing additives, and packaging. This study measured five PTEs (Cu, Ni, Zn, Mn, Fe), alongside pH, electrical conductivity, and total dissolved solids, in 30 chip samples (21 corn based, 9 potato based) from Iraqi markets using X-ray fluorescence spectrometry. Mean concentrations decreased in the order Fe > Zn > Cu > Mn > Ni for corn chips and Fe > Zn > Cu > Mn for potato chips. Fe ranged from 0.43-165.00 <math><mtext>mg</mtext> <mrow><msup><mrow><mtext>kg</mtext></mrow><mrow><mo>-</mo><mn>1</mn></mrow></msup></mrow></math> in corn chips and 0.70-34.40 <math><mtext>mg</mtext> <mrow><msup><mrow><mtext>kg</mtext></mrow><mrow><mo>-</mo><mn>1</mn></mrow></msup></mrow></math> in potato chips, exceeding the FAO/WHO permissible limit of 0.3 <math><mtext>mg</mtext> <mrow><msup><mrow><mtext>kg</mtext></mrow><mrow><mo>-</mo><mn>1</mn></mrow></msup></mrow></math> in all samples; Mn exceeded its 0.2 <math><mtext>mg</mtext> <mrow><msup><mrow><mtext>kg</mtext></mrow><mrow><mo>-</mo><mn>1</mn></mrow></msup></mrow></math> limit in most samples. Hazard quotients for Cu, Ni, Zn, and Mn stayed below 1.0, while Fe hazard quotients averaged 4.25-20.42. Cumulative hazard index values exceeded 1.0 for both groups (mean 4.37-21.45), with children more affected. Estimated cancer risk from Ni ranged from 1.62E-4 to 2.50E-4 for adults and 6.48E-4 to 1.0E-3 for children. Routine PTE monitoring is recommended to protect consumer health.</p>","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"1-14"},"PeriodicalIF":2.0,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149038945","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":"Co-exposure and interaction effect of a mixture of metals and polycyclic aromatic hydrocarbons on sperm oxidative damage.","authors":"Hueiwang Anna Jeng, Sinjini Sikdar, Chih-Hon Pan, Wen-Yi Lin","doi":"10.1080/10934529.2026.2733064","DOIUrl":"https://doi.org/10.1080/10934529.2026.2733064","url":null,"abstract":"<p><p>The study examined interactions between 16 polycyclic aromatic hydrocarbons (PAHs) and six metals in relation to sperm oxidative damage. PAH exposure was assessed using personal breathing-zone measurements, while metal exposure was quantified using urinary concentrations. Semen oxidative stress was evaluated by measuring reactive oxygen species (ROS) and malondialdehyde (MDA), and sperm oxidative DNA damage was assessed using 8-hydroxy-2'-deoxyguanosine (8-oxodGuo). Multiple linear regression models were used to examine whether interactions between metals and PAHs were associated with oxidative stress and sperm oxidative DNA damage. Cadmium (Cd) consistently interacted with PAH exposure in relation to ROS, MDA, and 8-oxodGuo levels. Notably, the interaction between Cd and acenaphthylene was significant in modifying 8-oxodGuo levels. Essential metals, including zinc (Zn), selenium (Se), and copper (Cu), also exhibited interactions with fluoranthene, naphthalene, and benzo[ghi]perylene, respectively. Dose-response trends consistently showed that the associations between PAHs and oxidative stress biomarkers were attenuated in the presence of these essential metals.</p>","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"1-11"},"PeriodicalIF":2.0,"publicationDate":"2026-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149008640","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":"Source-to-tap assessment of microbial and physicochemical quality of drinking water in Yirga Chafe Town, Gedeo Zone, Ethiopia.","authors":"Ayele Shentara, Assefa Wosnie, Workiye Getnet Abera, Dereje Ayele Gebreyes, Tayachew Woldie Enyew","doi":"10.1080/10934529.2026.2734475","DOIUrl":"https://doi.org/10.1080/10934529.2026.2734475","url":null,"abstract":"<p><p>This study evaluated the physicochemical and microbiological quality of the municipal drinking water supply in Yirga Chafe Town, Southern Ethiopia, across four operational stages (<math><mrow><mn>3</mn></mrow></math> primary sources, <math><mrow><mn>3</mn></mrow></math> storage reservoirs, <math><mrow><mn>3</mn></mrow></math> community taps, and <math><mrow><mn>3</mn></mrow></math> household connections). A physical water samples (<math><mi>n</mi><mo>=</mo><mn>3</mn></math> physical triplicates per node) were analyzed for ten water-quality parameters/indicators. Physical parameters, including turbidity (<math><mn>0.0</mn><mo>-</mo><mn>1.23</mn> <mtext>NTU</mtext></math>), electrical conductivity (<math><mn>13.5</mn><mo>-</mo><mn>24.5</mn><mo> </mo><mi>μ</mi><mtext>S/cm</mtext></math>), nitrate (<math><mn>0.04</mn><mo>-</mo><mn>0.05</mn><mo> </mo><mtext>mg/L</mtext></math>), and iron (<math><mn>0.01</mn><mo>-</mo><mn>0.04</mn><mo> </mo><mtext>mg/L</mtext></math>), complied with World Health Organization (WHO) and Ethiopian national guidelines. However, slight pH suppressions (<math><mn>6.2</mn><mo>-</mo><mn>6.4</mn></math>) were observed at select upstream nodes. Free significantly along the distribution pipeline, dropping from reservoir levels (<math><mn>0.15</mn><mo>-</mo><mn>0.25</mn><mo> </mo><mtext>mg/L</mtext></math>) to <math><mn>0.03</mn><mo>±</mo><mn>0.00</mn><mo> </mo><mtext>mg/L</mtext></math> at household connections, falling well below the WHO minimum threshold (<math><mn>0.2</mn><mo> </mo><mtext>mg/L</mtext></math>). Fecal coliforms were absent at source and reservoir nodes (0.00 CFU/100 mL) but increased downstream, reaching 2.00 CFU/100 mL at community taps and 11.4 ± 1.66 CFU/100 mL at household connections. Total coliforms throughout the network indicate downstream microbial deterioration due to inadequate chlorine disinfection. This highlights the need for improved routine monitoring and stronger residual chlorine protection along the distribution system.</p>","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"1-14"},"PeriodicalIF":2.0,"publicationDate":"2026-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149008632","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":"Investigations of black carbon aerosol sources and strengths over a rural-valley location in Haryana, India.","authors":"M P Raju, P C S Devara, S M Sonbawne","doi":"10.1080/10934529.2026.2734478","DOIUrl":"https://doi.org/10.1080/10934529.2026.2734478","url":null,"abstract":"<p><p>Observations of equivalent Black Carbon (eBC) aerosols were carried out at Panchgaon, a rural site in Haryana, nestled amidst the Aravali hillocks (285 m AMSL) in northwest India. These measurements were carried out using a next-generation seven-wavelength Aethalometer (AE33) from January 2020 through December 2022. The Aethalometer model was used to quantify the relative contributions of fossil fuel (eBC_ff) and biomass burning (eBC_bb) to total eBC, revealing the greater contribution of these sources consistent with regional emission characteristics. These stronger absorbers of solar radiation exhibit a diurnal pattern, with the highest values in the morning, evening hours and minimum values around afternoon hours. The annual mean concentrations of eBC, eBC_ff, and eBC_bb are found to be 4.06 ± 2.15 μg/m³, 3.10 ± 2.40 μg/m³, and 1.42 ± 1.19 μg/m³, respectively, during the study period. Both eBC_ff and eBC_bb sources show maximum value in winter (eBC_ff: 4.19 μg/m³, eBC_bb: 2.51 μg/m³) as compared to summer and monsoon months. This may be attributed to increased biomass burning in the surrounding area, as it is primarily a rural site. During winter, the site experiences lower atmospheric temperatures and wind speeds, due to the pollution getting trapped near the surface due to lower boundary layer height, followed by summer (eBC_ff: 3.60 μg/m³, eBC_bb: 1.87 μg/m³) and post-monsoon (eBC_ff: 2.30 μg/m³, eBC_bb: 1.08 μg/m³). The lowest values of eBC_ff (1.90 μg/m³) and eBC_bb (0.52 μg/m³), exhibited in monsoon, could be due to cloud- and rain-scavenging effects. eBC_ff accounts for the majority of the contribution, with an average fraction of 68% at 880 nm, while biomass burning contributes the remaining 32%. The average eBC_ff/eBC_bb ratio is 3.02 ± 3.80 at 880 nm. These findings provide valuable insights for designing targeted control emission strategies in semi-urban to rural regions, with implications for improving air quality and addressing regional climate impacts.</p>","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"1-14"},"PeriodicalIF":2.0,"publicationDate":"2026-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149001993","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":"Acute graded aerobic exercise and urinary bisphenol A and triclosan in overweight postmenopausal women: a randomized pilot study.","authors":"Bakhtyar Tartibian, Tahora Rafiee, Noushin Azadpour, Rasoul Eslami","doi":"10.1080/10934529.2026.2731314","DOIUrl":"https://doi.org/10.1080/10934529.2026.2731314","url":null,"abstract":"<p><p>Endocrine-disrupting chemicals (EDCs) such as bisphenol A (BPA) and triclosan (TCS) are ubiquitous, yet it remains unclear whether acute physiological stressors can transiently modify their urinary profiles. We conducted a randomized, parallel-group pilot laboratory study in overweight postmenopausal women (BMI 25-29.9 kg/m²) assigned to graded aerobic exercise (22-minute Modified Naughton treadmill protocol) or a non-exercise control condition. Fasting morning urine was collected 24 h before and 24 h after the intervention. Urinary free BPA and TCS concentrations were quantified by LC-MS/MS. Within-group changes were assessed using paired t tests, and between-group post-intervention differences were assessed using ANCOVA with baseline values entered as covariates. Twenty participants completed the protocol (<i>n</i> = 10 per group). In the exercise group, urinary BPA increased from 1.27 ± 0.39 to 1.38 ± 0.44 µg/L (<i>p</i> = 0.037) and TCS increased from 1.52 ± 0.98 to 1.89 ± 1.13 µg/L (<i>p</i> = 0.046), whereas no significant pre-post changes were observed in controls. However, baseline-adjusted ANCOVA showed no significant between-group differences for BPA (<i>p</i> = 0.157) or TCS (<i>p</i> = 0.345). These pilot findings should therefore be interpreted cautiously and do not demonstrate a statistically significant intervention effect. Larger studies with repeated sampling and urine dilution assessment are warranted.</p>","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"1-8"},"PeriodicalIF":2.0,"publicationDate":"2026-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148912133","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":"Seasonal and size-resolved elemental composition and source apportionment of atmospheric particulate matter in a coastal urban-industrial region of Zonguldak, Türkiye.","authors":"Berrin Gürler Akyüz, Mehmet Akyüz","doi":"10.1080/10934529.2026.2724190","DOIUrl":"https://doi.org/10.1080/10934529.2026.2724190","url":null,"abstract":"<p><p>The present study examines the seasonal and size-resolved elemental composition of fine (PM_2.5) and coarse (PM_2.5-10) particulate matter in a coastal urban-industrial region influenced by multiple sources, including coal mining, coal combustion for heating and power generation, iron-steel with coke production, maritime fuel-oil use, traffic emissions, and natural marine and crustal sources. Seasonal contrasts were marked, with the heating period PM_2.5 characterized by elevated concentrations of toxic elements (As, Sb, Cd, Pb, Se, V, Ni, and Cr) associated with combustion and industrial activities, reflecting intensified heating and industrial activities. Conversely, the composition of non-heating period PM_2.5-10 was dominated by crustal, marine, and resuspended dust components, with persistent industrial influence. Enrichment factor (EF) analysis using Ti as a reference element indicated substantial anthropogenic enrichment for combustion and metallurgy, while crustal and marine elements remained near natural levels. Principal Component Analysis (PCA) was utilized to identify distinct seasonal and size-dependent source factors, including coal combustion, iron-steel production, fuel-oil and shipping emissions, traffic non-exhaust sources, crustal dust, marine aerosol, and resuspended coal fly ash. Discriminant Analysis (DA) confirmed clear separation between seasons and particle-size fractions, supporting the internal consistency of the EF-PCA-DA approach without serving as independent validation of source assignments.</p>","PeriodicalId":15671,"journal":{"name":"Journal of Environmental Science and Health Part A-toxic\\/hazardous Substances & Environmental Engineering","volume":" ","pages":"1-20"},"PeriodicalIF":2.0,"publicationDate":"2026-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148865229","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}