University Of Tehran PressPollution2383-451X12320260901Heavy Metal Pollution and Ecological Risk Assessment of the Soil and Grass from Major Riverside Areas in Megacity Dhaka, Bangladesh75176810828510.22059/poll.2026.398978.3034ENAnikRoyDepartment of Environmental Sciences, Jahangirnagar University, Dhaka-1342, BangladeshMd. SabbirHossainDepartment of Environmental Science and Technology, Jashore University of Science and Technology, P. O. Box 7408, Jashore, Bangladesh0009-0003-2904-017XProtimaSarkerDepartment of Environmental Science and Disaster Management, Noakhali Science and Technology University, Noakhali-3814, Bangladesh0000-0002-6218-4912XinLiuGuangxi Key Laboratory of Aquatic Biotechnology and Modern Ecological Aquaculture, Guangxi Academy of Marine Sciences, Guangxi Academy of Sciences, Nanning, Guangxi 530007, ChinaFee FaysalAhmedDepartment of Mathematics, Jashore University of Science and Technology, P. O. Box 7408, Jashore, BangladeshMolla RahmanShaiburDepartment of Environmental Science and Technology, Jashore University of Science and Technology, P. O. Box 7408, Jashore, Bangladesh0000-0001-7413-2135M. KhabirUddinDepartment of Environmental Sciences, Jahangirnagar University, Dhaka-1342, Bangladesh0000-0001-9268-9164Journal Article20250720Heavy metal (HM) contamination in soil and plants endangers living organisms due to its toxic, persistent, and bioaccumulative nature. In this study, soil and grass samples were collected from the Buriganga, Turag, and Bongshi riverside areas of megacity Dhaka, Bangladesh. In this investigation, pollution levels, ecological risk, and HM transfer from soil to grass were assessed using the geo-accumulation index, contamination factor, ecological risk index, and correlation analysis. HM concentrations in both soil and grass were found in descending order of Lead (Pb) > Chromium (Cr) > Nickel (Ni) > Copper (Cu) > Cadmium (Cd). The highest concentrations of Pb were 73.45 ± 15.76 mg/kg and 64.23 ± 8.68 mg/kg in soil and grass, respectively. The maximum geo-accumulation index was < 1, indicating the unpolluted soil quality. The mean contamination factors of HMs were 0.85 in Cr (low contamination), 0.96 in Cu (low contamination), 3.61 in Ni (considerable contamination), 0.039 in Cd (low contamination), and 2.29 in Pb (moderate contamination). The degree of contamination was above 6, indicating moderate contamination. One site near the Bongshi River and six sites in the dairy farm area showed a pollution load index value (PLI) < 1, indicating no pollution. The other 17 areas showed PLI > 1, indicating polluted sites. Ecological risk index analysis indicates that all the sites are ecologically safe, but HM mobility from soil to grass indicates a high accumulation of HM in grass. Effective environmental management is essential to control HM pollution at its source and protect riverside ecosystems.https://jpoll.ut.ac.ir/article_108285_65ff6501324ae112a110240def3185a5.pdfUniversity Of Tehran PressPollution2383-451X12320260901Analysis of the Abundance, Types, and Shapes of Microplastics in Ambient Air Associated with Transportation Activities Using Passive Sampling in Pekanbaru City76978310828610.22059/poll.2026.406409.3197ENAryoSasmitaEnvironmental Engineering Department, Riau University, 28293, Pekanbaru, Indonesia0000-0002-5083-2994GunadiPriyambadaEnvironmental Engineering Department, Riau University, 28293, Pekanbaru, IndonesiaAnggie JuliaAdievtyEnvironmental Engineering Department, Riau University, 28293, Pekanbaru, IndonesiaJournal Article20251116Rapid urbanization and increasing transportation intensity have raised concerns regarding airborne microplastic pollution, particularly through road dust resuspension. Owing to their low density and aerodynamic properties, microplastic particles can become airborne and contribute to inhalation exposure. This study investigated the abundance, morphology, and polymer composition of airborne microplastics associated with transportation activities in Pekanbaru City, Indonesia. Sampling was conducted at sites representing arterial, collector, and local roads, in addition to a control location without transportation activity. Traffic volume was quantified through traffic counting, while airborne microplastics were collected using passive sampling over a 28-day period with weekly analysis. Polymer identification was performed using Differential Scanning Calorimetry (DSC). The results of this study indicated a clear relationship between traffic intensity and microplastic abundance in ambient air. The highest microplastic concentration was observed on arterial roads (0.251 particles/m³), followed by collector roads (0.172 particles/m³), local roads (0.119 particles/m³), and the control site (0.015 particles/m³). Pearson correlation analysis revealed a strong positive association between traffic volume and microplastic abundance (r = 0.787; R² = 0.619; p < 0.05). Fibers constituted the dominant morphology (70.05%), followed by fragments (22.84%) and films (7.12%). Identified polymers included polyvinyl chloride (PVC), polycarbonate (PC), and polyamide (PA). These findings demonstrate that transportation activities are a significant source of airborne microplastics in urban environments and may contribute to inhalation exposure.https://jpoll.ut.ac.ir/article_108286_b0de5f11b1679980c2083c5143e0472c.pdfUniversity Of Tehran PressPollution2383-451X12320260901Selective Nickel and Chrome Ions Adsorption from Aqueous Solutions using Phycocyanin-Functionalized Magnetic Nanosorbent78479810828710.22059/poll.2026.407588.3221ENKimiaImaniChemical Engineering Department, Faculty of Engineering, Razi University, Kermanshah, IranAlirezaHabibiChemical Engineering Department, Faculty of Engineering, Razi University, Kermanshah, IranShadiAzarChemical Engineering Department, Faculty of Engineering, Razi University, Kermanshah, IranJournal Article20251204Contamination of water resources to heavy metals is a crucial environmental concern due to its toxicity effects on ecosystems and human health. This study focuses on the development of an efficient green nanosorbent for the selective adsorption of Ni (II) from Cr (VI) ions in aqueous solutions using phycocyanin-functionalized magnetic nanosorbents (PC-nanosorbent). This approach gains a potential for the recovering of these heavy metals from industrial effluents and reuse them. The adsorption experiments revealed a monolayer adsorption carried out between the ions and functional groups in the nanosorbents. The PC-nanosorbent showed higher efficiency for Ni(II) removal whereas Cr(VI), confirming a selective adsorption of these metals. Kinetic modeling indicated that the pseudo-second-order model best described the adsorption processes of these metals on the PC-nanosorbents, and a faster adsorption kinetics for Ni(II) compared to Cr(VI) was observed. Also, the Langmuir adsorption coefficients were qmax = 19.16 mg g-1 and KL = 0.0023 L mg-1 for Ni (II), and qmax =14.45 mg g-1 and KL = 0.2039 L mg-1 for Cr (VI). Furthermore, regeneration tests over three cycles showed good reusability, with a maximum capacity decrease of 16%. The results of this study indicate the potential of magnetic nanosorbents as a selective, efficient, feasible, and reusable technique for the selective adsorption of nickel from chromium ions in aqueous environments.https://jpoll.ut.ac.ir/article_108287_acd29ef46a5d969111eded4e7922fb2f.pdfUniversity Of Tehran PressPollution2383-451X12320260901Multioutput Least Square Support Vector Regression Based on Multivariate Exponentially Weighted Moving Variance Control Chart for Air Quality Monitoring in Makassar City79981610828810.22059/poll.2026.406521.3226ENRafli SetiawanNasirDepartment of Statistics, Faculty of Mathematics and Natural Sciences, Hasanuddin University, Makassar, Indonesia0009-0005-6052-5241Muh.AfdalDepartment of Statistics, Faculty of Mathematics and Natural Sciences, Hasanuddin University, Makassar, Indonesia0009-0004-6456-3176Nur AzizahAmraDepartment of Statistics, Faculty of Mathematics and Natural Sciences, Hasanuddin University, Makassar, Indonesia0009-0000-4918-4064Erna TriHerdianiDepartment of Statistics, Faculty of Mathematics and Natural Sciences, Hasanuddin University, Makassar, Indonesia0000-0003-2342-4247Journal Article20251206Air quality monitoring is important for public health, but the characteristics of environmental data, which are multivariate, non-normally distributed, and highly correlated, automatically render conventional statistical control methods ineffective. This study aims to develop an air quality monitoring system in Makassar City using a statistical approach, integrating the Multioutput Least Square Support Vector Regression (MLS-SVR) method and the Multivariate Exponentially Weighted Moving Variance (MEWMV) control chart. This study uses daily data on Particulate Matter 2.5 (PM2.5), Sulfur Dioxide (SO2), and Carbon Monoxide (CO) concentrations from January 2024 to August 2025. The methodology involves using MLS-SVR as a whitening process to model nonlinear relationships and eliminate autocorrelation structures. The resulting independent residuals are then monitored using MEWMV control charts to detect shifts in process variability. The results show that the MLS-SVR model produces high prediction accuracy, as evidenced by an R2 value of 0.7362, an MSE of 0.2638, and an RMSE of 0.5136. The model also successfully removes significant autocorrelation from the raw data. The MEWMV control chart shows good performance by remaining within control limits despite a significant spike in pollutants during Independence Day celebrations, demonstrating the control Chart's ability to distinguish between predictable structural variations and actual process anomalies. This study concludes that the proposed hybrid method provides a sensitive and effective approach to environmental monitoring. Therefore, this integration is recommended to policymakers as an effective method for early detection of air quality deterioration.https://jpoll.ut.ac.ir/article_108288_56b232a52253c7f2166c1313f39737b8.pdfUniversity Of Tehran PressPollution2383-451X12320260901Provincial Biogas Potential: Technical & Economic Assessment of Manure-Based Energy Across Iran81783110828910.22059/poll.2026.407722.3228ENAbbasRezaeeKish International Campus, University of Tehran, P.O. Box 39982-79416, Hormozgan, IranKhosroAshrafiFaculty of Environment, University of Tehran, P.O. Box 14155-6135, Tehran, Iran0000-0001-8048-0275YounesNoorollahiSchool of Renewable Energies and Environmental Engineering, College of Interdisciplinary Science and Technology, Faculty of New Science and Technology, University of Tehran, P.O. Box 14155-6135, Tehran, IranJournal Article20251206Anaerobic digestion of livestock manure offers a pathway for Iran to mitigate seasonal energy imbalances. During the four- month, thermal power plants' methane consumption rises by an average of 85 Mcm/day (2,650 Mcm/month), peaking at 309 Mcm/day. This study identifies a national biomethane potential of approximately 12.7 Mcm/day from 92.1 Mt of annual collectible manure. If stored and dispatched seasonally, this capacity could offset nearly two months of the incremental peak demand observed in thermal power plants.Economically, the research advocates for a strategic shift from biogas-to-electricity toward biogas-to-renewable natural gas (RNG) injection. decoupling power-generation infrastructure reduces capital expenditure by 51.52%, boosting the internal rate of return from 9.2% to 29 % and shortening the payback period to four years. To the best of the authors’ knowledge, this research represents the first application of the Livestock Standard Unit Equivalent (LSUe) framework to Iranian provincial livestock distribution. This methodology yields an estimated 50.6 m3 of biomethane per tonne of fresh manure. Integrating these results with economic screening identifies Mazandaran and Golestan as primary provinces for targeted bioenergy expansionhttps://jpoll.ut.ac.ir/article_108289_cf2385ed02068ca4d10c70280d89f895.pdfUniversity Of Tehran PressPollution2383-451X12320260901Multi-Species Bioaccumulation and Risk Assessment of Heavy Metals in a Tropical Industrial Coastline: Sentinel-Based Insights from the Philippines83284510829010.22059/poll.2026.407688.3229ENApril JoyMontejoCollege of Environment and Life Sciences, Mindanao State University at Naawan, Misamis Oriental, 9023, Philippines0009-0007-7871-6972ElnorRoaCollege of Fisheries and Marine Sciences, Mindanao State University at Naawan, Misamis Oriental, 9023, Philippines0000-0002-1963-8747JomarBesoñaCollege of Fisheries and Marine Sciences, Mindanao State University at Naawan, Misamis Oriental, 9023, Philippines0000-0003-1705-7161ChristianDela TorreCollege of Environment and Life Sciences, Mindanao State University at Naawan, Misamis Oriental, 9023, PhilippinesReycylGuiaCollege of Environment and Life Sciences, Mindanao State University at Naawan, Misamis Oriental, 9023, PhilippinesMargie RoseOlbenarioCollege of Environment and Life Sciences, Mindanao State University at Naawan, Misamis Oriental, 9023, PhilippinesJadeCoñadoCollege of Environment and Life Sciences, Mindanao State University at Naawan, Misamis Oriental, 9023, PhilippinesAidaPerpetuaCollege of Environment and Life Sciences, Mindanao State University at Naawan, Misamis Oriental, 9023, Philippines0000-0003-4767-7345SonnieVedraCollege of Environment and Life Sciences, Mindanao State University at Naawan, Misamis Oriental, 9023, Philippines0009-0004-2151-0488ReyCapangpanganCollege of Fisheries and Marine Sciences, Mindanao State University at Naawan, Misamis Oriental, 9023, Philippines0000-0002-7078-9903Journal Article20251208This research applies an integrated biomonitoring framework that combines bioaccumulation metrics (BSAF, BAF) and toxicological risk indices (EDI, HQ) to assess heavy metal contamination (Pb, Cd, and Hg) along a tropical industrial coastline in Iligan City, Philippines. Multi-trophic bioindicators (Anadara sp., Terapon jarbua, and Padina sp.) were analyzed across three coastal sites to trace sediment-associated and waterborne exposure pathways. Pb exhibited distinctive accumulation patterns, with sediment concentrations ranging from 5.37 to 5.43 mg/kg, closely matching those detected in Anadara sp. (5.40–5.79 mg/kg) and exceeding the levels observed in T. jarbua (2.33–3.38 mg/kg). This affirms its role as an effective sentinel for sediment-associated Pb exposure and highlights the link between sediment and biota. Significant differences among environmental compartments (Kruskal-Wallis, p < 0.05) further indicate pathway-specific uptake, with bivalves linked to sediment exposure and fish reflecting mixed trophic and waterborne inputs. Risk assessment showed higher exposure in Anadara sp. (HQ = 0.206) than in T. jarbua (HQ = 0.183), with bivalve concentrations exceeding Philippine regulatory limits but remaining within EU thresholds. Despite this, HQ values <1 indicate no immediate non-carcinogenic risk under current consumption assumptions. Cd and Hg were below detection limits, including in the macroalgae sample, Padina sp., identifying Pb as the primary contaminant of concern. By integrating bioaccumulation and exposure metrics, this research provides a systems-based framework for tracing contaminant pathways and assessing seafood safety in rapidly urbanizing tropical coastal systems.https://jpoll.ut.ac.ir/article_108290_07bbdb29f4120702b9bc9936cf2a5608.pdfUniversity Of Tehran PressPollution2383-451X12320260901Comparative Kinetic Evaluation of Resin Immobilized TiO₂ and ZnO Photocatalysts in a Continuous Fixed-Bed System for Industrial and Food Wastewater Treatment84686410829110.22059/poll.2026.409175.3258ENEuis NurulHidayahDepartment of Environmental Engineering, Universitas Pembangunan Nasional Veteran Jawa Timur, Surabaya, 60294, Indonesia0000-0003-2055-3051Nur Laili AlfiatinMukharomahEnvironmental Recearch Center, Universitas Pembangunan Nasional Veteran Jawa Timur, Surabaya, 60294, Indonesia0009-0007-5778-217XIka NawangPuspitasariDepartment of Chemical Engineering, Universitas Pembangunan Nasional Veteran Jawa Timur, Surabaya, 60294, IndonesiaMoch. AndyWibisonoEnvironmental Recearch Center, Universitas Pembangunan Nasional Veteran Jawa Timur, Surabaya, 60294, IndonesiaAryaDarmawanEnvironmental Recearch Center, Universitas Pembangunan Nasional Veteran Jawa Timur, Surabaya, 60294, IndonesiaJournal Article20260102Electroplating wastewater contains toxic Cr⁶⁺, while tofu wastewater has a high organic load that degrades water quality. Advanced oxidation processes (AOPs) based on photocatalysis have been extensively developed, including fixed-bed reactors. However, the application of continuous systems remains limited due to the prevalence of batch scale studies, uneven flow distribution, and limited contact between pollutants and the photocatalyst. This study employs a continuous fixed-bed photocatalytic reactor as the primary innovation to address these limitations. The performance of resin immobilized TiO₂ and ZnO was evaluated for Cr⁶⁺ removal and COD reduction. The resin immobilized TiO₂ and ZnO was synthesized via a stirring method under dark conditions. Mass variations of 10, 20, and 30 g were used in the reactor which was operated under UV-C irradiation (40 W/m²) at a flow rate of 60 mL/min. Samples were analyzed from 0 to 180 minutes for Cr⁶⁺, COD, and pH parameters. The results showed that resin immobilized ZnO provided better performance, with Cr⁶⁺ removal of 71.36% and COD reduction of 92.61%, compared to resin immobilized TiO₂, which achieved 70.80% and 84.89%. Acidic conditions enhanced process effectiveness through the formation of hydroxyl radicals and redox reactions. Kinetic analysis indicated that the COD reduction followed first-order kinetics, whereas Cr⁶⁺ removal followed second-order kinetics, reflecting differences in reaction mechanisms. Overall, the developed continuous fixed-bed system demonstrated stable performance and holds potential for sustainable wastewater treatment applications.https://jpoll.ut.ac.ir/article_108291_42207d9e78fa2daa52ff57d052defc5d.pdfUniversity Of Tehran PressPollution2383-451X12320260901Pesticide-Induced Selection Pressure on Soil Microbial Communities: An Assessment of Bacterial Tolerance and Diversity in Northeastern Algerian Agricultural Soils86587310829210.22059/poll.2026.408433.3276ENHananeSlimaniDepartment of Microbiology and Biochemistry, Faculty of Natural and Life Sciences, Batna 2 University, 53 Route de Constantine, Fésdis, 05078. Batna, Algeria0000-0001-8614-7385ZidaneBranesBadji Mokhtar Annaba University, Laboratory of Biogeochemical and Ecological Analysis of Aquatic Environments, Faculty of Sciences BP 12, Annaba 23000, AlgeriaJournal Article20260131Pesticide-induced soil degradation is a major concern for intensive agriculture. This study assessed the impact of deltamethrin and thiophanate-methyl on the cultivable bacterial diversity of agricultural soils in northeastern Algeria. 48 bacterial strains were isolated, among which four representative species for this study —Achromobacter marplatensis EY-T10, Bacillus weihenstephanensis 261ZG8, Arthrobacter sp. dv7, and Bacillus sp. JDMASP42— were selected based on their metabolic potential. Growth assays, measured by Optical Density (OD₆₀₀), revealed distinct strain-specific responses: in the presence of deltamethrin, Bacillus strains reached a mean OD of 0.25, indicating a growth increase of 19% compared to the control. Conversely, thiophanate-methyl exerted a strong inhibitory effect, limiting the final OD to 0.059, for sensitive species, representing an important biomass reduction. Phylogenetic analysis confirmed that Bacillus and Pseudomonas were the dominant taxa among the pesticide-tolerant isolates. These quantitative results demonstrate that pesticide exposure acts as a strong ecological filter, significantly shifting the soil microbial community structure toward tolerant, spore-forming genera. This work provides critical data on the selection pressure exerted by agrochemicals on indigenous soil microflora.https://jpoll.ut.ac.ir/article_108292_575187ec0406a9c7e909e85c7d5957c8.pdfUniversity Of Tehran PressPollution2383-451X12320260901Beyond Environmental Transparency: Brand Credibility as a Key Driver of Willingness to Pay for Low Global Warming Potential Construction Materials87488510829310.22059/poll.2026.410414.3279ENShahrbanooGolchoobi DivaGraduate Faculty of Environment, University of Tehran, P.O.Box 14155-6135, Tehran, Iran0009-0006-3741-1630HamidrezaJafariGraduate Faculty of Environment, University of Tehran, P.O.Box 14155-6135, Tehran, Iran0000-0002-4376-1016Journal Article20260202The construction sector accounts for a substantial share of global energy consumption and greenhouse gas emissions, with embodied carbon from building materials increasingly recognized as a critical contributor. In response, Life Cycle Assessment (LCA) and Environmental Product Declarations (EPDs) have been promoted to enhance environmental transparency and support environmentally informed material selection. However, empirical evidence remains inconclusive as to whether standardized environmental information alone is sufficient to influence professionals’ willingness to pay (WTP).This study investigates how environmental attitude, environmental knowledge, and perceived brand credibility jointly shape construction professionals’ willingness to pay a price premium for green certified, low Global Warming Potential (low GWP) wall materials when standardized EPD based environmental information is provided. A quantitative cross sectional survey was conducted among 136 construction professionals. Simplified LCA results were used to develop uniform EPD style environmental profiles presented consistently across material alternatives. Data were analyzed using Spearman’s rank correlation and multiple linear regression.The results show that environmental attitude and environmental knowledge are positively associated with willingness to pay at the bivariate level. However, in the multivariate regression model, only perceived brand credibility remains a statistically significant predictor of WTP (β = 0.497, p < 0.001), while the effects of environmental attitude (β = 0.155, p = 0.184) and environmental knowledge (β = −0.042, p = 0.655) are non significant. The model explains approximately 36% of the variance in willingness to pay (R² = 0.359).These findings indicate that even under standardized and transparent environmental information, professionals’ economic decisions are primarily shaped by credibility based considerations. EPDs function as necessary informational background conditions, whereas brand credibility—closely linked to trust, risk management, and professional accountability—emerges as the dominant driver of willingness to pay for low GWP construction materials.https://jpoll.ut.ac.ir/article_108293_4a2dbb0adb2260ac1785b2054163239d.pdfUniversity Of Tehran PressPollution2383-451X12320260901Bioaccumulation of 17β-estradiol in Freshwater Gastropod Sulcospira testudinaria under increasing Anthropogenic Pressure in the Brantas River, Indonesia88689710829410.22059/poll.2026.410621.3283ENQonitah ImaniyarFitroyaFaculty of Fisheries and Marine Science, Brawijaya University, Jl. Veteran, Malang 65145, East Java, Indonesia0009-0004-0974-3625YennyRisjaniFaculty of Fisheries and Marine Science, Brawijaya University, Jl. Veteran, Malang 65145, East Java, IndonesiaAsus Maizar SuryantoHertikaFaculty of Fisheries and Marine Science, Brawijaya University, Jl. Veteran, Malang 65145, East Java, Indonesia0009-0004-0974-3625Journal Article20260206The presence of endocrine-disrupting compounds in freshwater ecosystems has raised increasing concern due to their potential ecological impacts, particularly in rivers exposed to growing anthropogenic pressure. This study investigated the occurrence and bioaccumulation of 17β-estradiol (E2) in river water and in the freshwater gastropod Sulcospira testudinaria collected from ten sampling stations along the Brantas River, Indonesia. Water and tissue samples were obtained during the dry season to minimise hydrological variability and improve spatial comparability among stations. E2 was detected in river water at all stations at nanogram-per-litre levels, while concentrations in S. testudinaria tissues were substantially higher, reaching up to 470 ng g⁻¹ wet weight, with elevated values generally observed in middle and downstream sections. Positive relationships were observed between E2 concentrations in water and gastropod tissues, indicating spatially dependent bioaccumulation along the river continuum. The results indicate that anthropogenic activities contribute to estrogenic contamination in the Brantas River system. The observed patterns, together with environmental conditions influenced by organic and nutrient loading, suggest enhanced persistence and bioavailability of E2 in impacted areas. S. testudinaria shows potential as a benthic indicator organism for reflecting estrogenic contamination in tropical freshwater environments, although its applicability should be interpreted within the context of site-specific environmental variability.https://jpoll.ut.ac.ir/article_108294_c6bb13d01f1c8278dc809a3005a6c0cf.pdfUniversity Of Tehran PressPollution2383-451X12320260901Prediction of Air Pollution by Chlorinated Volatile Organic Compounds (CVOs) Using the LandGEM model and Hazard Coefficients at the West Bandung Regency landfill89891010829510.22059/poll.2026.411546.3299ENDarwelDarwelDepartment of Environmental Health, Politeknik Kesehatan Kementerian Kesehatan Padang, Padang 25146, IndonesiaAidilFitrahDepartment of Environmental Health, Faculty of Public Health, Universitas Mulawarman, 75242, Samarinda, IndonesiaAndi FerinaHerbourine BonitaDepartment of Occupational Health and Safety, Faculty of Public Health, Universitas Tadulako, 94148, Palu, Indonesia0000-0001-8693-7686Dana PrayogaIrawanDepartment of Nursing, Politeknik Karya Husada, 16424, Jakarta, Indonesia0009-0001-5660-0713Anshah SilmiAfifahDepartment of Furniture Production Engineering, Politeknik Industri Furnitur dan Pengolahan Kayu, 51371, Kendal Regency, Indonesia0009-0006-3284-9959Mufti Rosyid VeryMurtadhoDoctoral Program in Management, Universitas Muhammadiyah Malang, Malang 65144, IndonesiaJoshuaVidalResearch Associate, Coastal Cities At Risk in the Philippines, Ateneo De Manila University, 1108, Quezon City, PhilippinesYura WitsqaFirmansyahDepartment of Hospital Administration, STIKES Adi Husada, 60141, Surabaya, Indonesia0000-0003-1100-4237Journal Article20260219Urban waste management through landfills remains an environmental and public health challenge in developing countries, as the biological degradation and physicochemical reactions within them produce complex gas emissions, including potentially hazardous non-methane organic compounds. Chlorinated volatile organic compounds such as 1,1,1-trichloroethane, 1,1,2,2-tetrachloroethane, and ethylidene dichloride have high persistence and significant toxicological profiles, posing a risk to vulnerable populations such as waste takers who are exposed to landfill gases during long working hours. This study used a quantitative cross-sectional design based on Environmental Health Risk Assessment to assess inhalation exposure in 101 waste takers at the Sarimukti landfill in West Java. Pollutant concentrations were estimated using the Landfill Gas Emissions Model based on waste generation data from 2006 to 2021, then converted to mg/m³ and used to calculate inhalation intake and hazard coefficients. The results showed that 1,1-dichloroethane had the highest concentration (9.72 mg/m³) and the largest intake (1,090 mg/kg/day), followed by 1,1,2,2-tetrachloroethane and 1,1,1-trichloroethane. All hazard coefficients values were below 1.0, indicating that the individual non-carcinogenic risk was still within safe limits. However, chronic exposure, long working hours, and exposure to a mixture of landfill gas pollutants still have the potential to increase cumulative health risks. These findings confirm that an intake-based approach is more representative in assessing occupational risks and support the need for continuous monitoring and integrated risk management strategies to protect the health of waste takers in landfill environments.https://jpoll.ut.ac.ir/article_108295_8fcbbfa30f0dd6586eae1ad000385394.pdfUniversity Of Tehran PressPollution2383-451X12320260901Air Pollution from Brick Kiln Industry and its Effects on the Kiln Workers and nearby Agricultural Lands91192410829610.22059/poll.2026.412485.3307ENNaba KumarMondalEnvironmental Chemistry Laboratory, Department of Environmental Science, The University of Burdwan, West, Bengal, India0000-0002-1554-1390NilanjanKoleyEnvironmental Chemistry Laboratory, Department of Environmental Science, The University of Burdwan, West, Bengal, IndiaPradipMitraEnvironmental Chemistry Laboratory, Department of Environmental Science, The University of Burdwan, West, Bengal, IndiaJournal Article20260408The brick kiln industry plays a crucial role in supporting local economies, particularly in developing countries; however, it is also associated with significant environmental and occupational health concerns. This study aims to identify pollution levels through real-time monitoring. The study found higher concentrations of various pollutants such as PM10, PM2.5, CO, TVOC, and HCHO during kiln operation stages. Among the different pollutants, particulate matters (PM2.5 and PM10) and CO2 are invariably high in operational period than pre- and post-operational periods. However, other pollutants like CO, HCHO, TVOC etc are exhibited marginal difference between the pre, post and operational periods. The results also revealed that the heavy metals like Cu decreased, while Zn increased during the operational period, and Cd was not detected. Health issues such as headache, breathlessness, eye irritation, skin problems, asthma, and digestive problems were more prevalent among brick kiln workers. Therefore, brick kiln sector requires a careful monitoring considering both emission quality of kiln and health status of kiln workers.https://jpoll.ut.ac.ir/article_108296_51ef43a4c401b2e94241954ce21820bc.pdfUniversity Of Tehran PressPollution2383-451X12320260901Assessment of Heavy Metal Risk in Urban Soils of the Kan Area (District 5), Tehran, Iran: A Multi-Index Approach92593910829710.22059/poll.2026.412600.3308ENShayanShariatiDepartment of Environmental Engineering, Faculty of Environment, University of Tehran, Tehran, Iran0000-0003-3441-209XAlirezaZareDepartment of Environmental Engineering, Faculty of Environment, University of Tehran, Tehran, IranGolshidKhamoushiDepartment of Environmental Engineering, Faculty of Environment, University of Tehran, Tehran, IranMehrdadManafianvarDepartment of Environmental Engineering, Faculty of Environment, University of Tehran, Tehran, IranJournal Article20260411The objective of this study was to quantify the concentrations and spatial variability of heavy metals in soils at urban stations in Kan (District 5, Tehran, Iran). Eight composite soil samples (40 points) were collected using a five-point (10×10 m) design and analyzed after four-acid total digestion (HCl-HNO3-HF-HClO4) by inductively coupled plasma mass spectrometry (ICP-MS). Contamination and risk were evaluated using the pollution load index (PLI), contamination factor (CF), geoaccumulation index (Igeo), modified degree of contamination (mCd), potential ecological risk index (PER), and the mean effects range–median quotient (mean-ERM-Q) as a screening tool for mixture toxicity. Exploratory inter-element relationships were further examined using correlation analysis. In addition, screening carcinogenic risk for Pb was estimated. Results showed, lead had the widest range (26–129 mg/kg), with hotspots at the traffic intersection and nearby urban activity nodes, while Cu peaked at stations influenced by localized workshop-related activities. The correlation matrix showed positive associations for Co-Ni, Cr-Ni, Cr-Zn, Cu-Zn, and Cd-Pb (unadjusted p < 0.05), suggesting mixed lithogenic and urban co-enrichment patterns. CF and Igeo identified Pb as the dominant pollutant (CF>6 and Igeo>2 at hotspot stations). PLI ranged from 0.84 to 1.48, indicating overall low-to-moderate pollution with spatially concentrated enrichment. PER values remained below the commonly used threshold of 150, suggesting low ecological risk overall, whereas mean-ERM-Q values (0.200–0.389) fell in the 0.11–<0.5 class, corresponding to an estimated ~21% probability of toxicity. Screening ILCR for Pb ranged from 1.12E-05 to 5.58E-05, and all stations remained within the commonly used acceptable risk-management range of 1E-06 to 1E-04. These findings provide baseline evidence of hotspot-driven metal enrichment in Kan soils and support targeted monitoring and management in rapidly urbanizing districts.https://jpoll.ut.ac.ir/article_108297_0dc376a1fe6c85c2280549bf8d055475.pdfUniversity Of Tehran PressPollution2383-451X12320260901Assessment of Air Pollution in Sulaymaniyah City Derived from the TROPOMI Sentinel-5P Using the Air Quality Index94095210829810.22059/poll.2026.412863.3311ENPshtiwan GharibGhafurDepartment of Social Sciences, University of Sulaimani, Kirkuk Road, Sulaymaniyah, Kurdistan Region, Iraq0000-0003-0887-9462Journal Article20260417This research assessed the air pollution in Sulaymaniyah city, Iraq, using the air quality index (AQI) from 2019–2023. The data used in this research derived from the TROPOMI Sentinel-5P, including nitrogen oxide (NO2), Sulphur dioxide (SO2), carbon monoxide (CO), and ozone (O3). This research aimed to calculate the intensity of air pollution and illustrate the spatiotemporal variability of the AQI in Sulaymaniyah. The calculated AQI results illustrated that the highest aggregate AQI was 224.1 in 2020, the lowest was 199.1 in 2019, and the annual average was 213.8 (very unhealthy) from 2019 to 2023. The highest seasonal aggregate AQI was 249.8 (very unhealthy) in the winter, and the lowest was 177.7 (unhealthy) in the summer. During COVID-19, the aggregate AQI was 11.1% lower than the average aggregate AQI across the whole research period. Pollutants came from the combustion of fuels for transportation, electricity generation, home and building heating, cement production, oil industry and new construction. Daily inhalations by children aged 1 to 2 years were the highest. Older individuals and pregnant and breastfeeding women had ingested more toxins compared to younger groups. More research will continue to drive predictive analytics, and the findings can have a significant effect on how to act on air quality management.https://jpoll.ut.ac.ir/article_108298_21fd11b1775e7e674f8bcf267f9becda.pdfUniversity Of Tehran PressPollution2383-451X12320260901Low-Temperature Fabrication of a CuO/CNT Nanocomposite Derived from CNTs Grown on Activated Carbon for Visible-Light-Driven Dye Degradation95397010829910.22059/poll.2026.413052.3313ENWafa SarhanAl SaidiDepartment of Biological Sciences and Chemistry, University of Nizwa, Nizwa-616, OmanNatural and Medicinal Sciences Research Center, University of Nizwa, Nizwa-616, OmanSaimaFarooqDepartment of Biological Sciences and Chemistry, University of Nizwa, Nizwa-616, OmanSalam KadhimAl DaweryChemical and Petrochemical Engineering, College of Engineering and Architecture, University of Nizwa, Nizwa-616, OmanMohammedAl-SaadiChemical and Petrochemical Engineering, College of Engineering and Architecture, University of Nizwa, Nizwa-616, OmanDunaboyinaSri Maha VishnuDepartment of Biological Sciences and Chemistry, University of Nizwa, Nizwa-616, OmanBadarAl NairiNatural and Medicinal Sciences Research Center, University of Nizwa, Nizwa-616, OmanIssa SulaimanAl AmriDepartment of Biological Sciences and Chemistry, University of Nizwa, Nizwa-616, OmanAhmed Suliaiman FadhilAl HarrasiNatural and Medicinal Sciences Research Center, University of Nizwa, Nizwa-616, OmanSreedhar ReddySajjalaDepartment of Civil and environmental Engineering, College of Engineering and Architecture, University of Nizwa, Nizwa-616, Oman0000-0003-1875-8680Journal Article20260420This study presents a facile synthesis of a CuO/CNT nanocomposite using pristine CNTs grown on powdered activated carbon at a low temperature of 250 °C, demonstrating efficient visible-light dye degradation under 6 W LED irradiation. Detailed material characterization confirmed the formation of well-dispersed CuO nanoparticles (7–12 nm) clustered around CNTs and exhibiting a tube-like morphology (50–120 nm), which enhanced structural stability and catalytic performance. The CuO/CNT nanocomposite exhibited high photocatalytic efficiency, achieving 90% degradation of Methyl Green (MG) and 67% degradation of Methyl Orange (MO) within 180 minutes under visible-light irradiation. Kinetic studies revealed that the dye degradation followed a pseudo-first-order model, with rate constants of 0.0081 min⁻¹ for MG and 0.005 min⁻¹ for MO. The incorporation of CNTs enhanced charge separation, light absorption, and reaction kinetics, thereby overcoming the limitations of pure CuO. These findings indicate that CuO/CNT is an efficient and economical photocatalyst for degrading organic pollutants in wastewater treatment applications, contributing to the achievement of several Sustainable Development Goals (SDGs).https://jpoll.ut.ac.ir/article_108299_2cd77011d6f5d86c2521e6dcf1d6c048.pdfUniversity Of Tehran PressPollution2383-451X12320260901Biomagnetic Studies as a Low-Cost Proxy for Particulate Matter Monitoring in the Arid Desert Region: A Case Study from Western Rajasthan in India97198410830010.22059/poll.2026.413035.3314ENMdAsalamDepartment of Chemical Engineering, Indian Institute of Technology Jodhpur, NH 62 Nagaur Road, Karwar, Jodhpur, Rajasthan, IndiaNarendraNagarDepartment of Chemical Engineering, Indian Institute of Technology Jodhpur, NH 62 Nagaur Road, Karwar, Jodhpur, Rajasthan, India0009-0008-4305-6668PrasantaDasPalaeomagnetism Laboratory, Birbal Sahni Institute of Palaeosciences, 53-University Road, Lucknow, Uttar Pradesh, IndiaMohammadArifPalaeomagnetism Laboratory, Birbal Sahni Institute of Palaeosciences, 53-University Road, Lucknow, Uttar Pradesh, IndiaRameshAsapuDepartment of Chemical Engineering, Indian Institute of Technology Jodhpur, NH 62 Nagaur Road, Karwar, Jodhpur, Rajasthan, India0000-0002-2118-5636Journal Article20260420In this study, PM monitoring was performed by biomagnetic analysis of roadside plant leaves of Azadirachta indica A. Juss (neem tree) in the arid desert region of Jodhpur in western Rajasthan, India. This study used the remanent magnetisation of PM10 deposited on neem leaves as a proxy for PM biomonitoring. The saturation isothermal remanent magnetisation (SIRM) showed a strong linear relationship (Pearson's r = 0.9340, p = 0.006) with PM10 data from the low-cost PM sensor. Among six sampling sites, the highest PM10 concentration (88.8 ± 9.8 μg/m³) and SIRM value (7231.2 mA) were observed in the Basni industrial area, confirming the significance of vehicular and industrial emissions. Conversely, the IIT Jodhpur campus, isolated from anthropogenic sources, still exhibited high SIRM values (1904.4 mA), attributed to magnetite-type minerals transported via aeolian processes from the Thar Desert. SEM-EDS analysis further confirmed the presence of crustal minerals (Al, Si) alongside anthropogenic elements (Fe, K, Ca, Mg). A comparative financial study revealed that biomagnetic monitoring (~50,000 INR for ten sites) is significantly more economical than conventional CAAQMS (~110 million INR for ten stations). These findings demonstrate that biomagnetic monitoring offers a robust, low-cost proxy for PM10 mapping in arid desert regions, with strong implications for public health and environmental management.https://jpoll.ut.ac.ir/article_108300_5c7d4149220b85743328287877c1b10f.pdfUniversity Of Tehran PressPollution2383-451X12320260901Investigating Variability of Roadside Air Pollution and Its Association with Traffic Volume in Urban Areas, Bangladesh98599910830110.22059/poll.2026.413080.3316ENSayed MohammadRaselClimate Change, Air Quality and Health Research (C2AHR) Unit, Department of Public Health and Informatics, Jahangirnagar University, Savar, Dhaka-1342, BangladeshDepartment of Public Health and Informatics, Jahangirnagar University, Savar, Dhaka-1342, Bangladesh0009-0001-4250-830XMd JamilHossainClimate Change, Air Quality and Health Research (C2AHR) Unit, Department of Public Health and Informatics, Jahangirnagar University, Savar, Dhaka-1342, BangladeshDepartment of Public Health and Informatics, Jahangirnagar University, Savar, Dhaka-1342, BangladeshAfsanaYasminClimate Change, Air Quality and Health Research (C2AHR) Unit, Department of Public Health and Informatics, Jahangirnagar University, Savar, Dhaka-1342, BangladeshDepartment of Public Health and Informatics, Jahangirnagar University, Savar, Dhaka-1342, BangladeshMd. LazimIslamDepartment of Public Health and Informatics, Jahangirnagar University, Savar, Dhaka-1342, BangladeshAlJubaerInternational Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), 68 Shaheed Tajuddin Ahmed Sarani, Mohakhali, Dhaka, 1212, BangladeshMd ZiaulHaqueDepartment of Environment, Ministry of Environment, Forest and Climate Change, Agargaon, Sher-e-Bangla Nagar, Dhaka-1207, BangladeshMohammad AbdulMotalibDepartment of Environment, Ministry of Environment, Forest and Climate Change, Agargaon, Sher-e-Bangla Nagar, Dhaka-1207, BangladeshAfzalAhmedSouth Florida Water Management District, West Palm Beach, Florida, United StatesMd. ShakhaoatHossainClimate Change, Air Quality and Health Research (C2AHR) Unit, Department of Public Health and Informatics, Jahangirnagar University, Savar, Dhaka-1342, BangladeshDepartment of Public Health and Informatics, Jahangirnagar University, Savar, Dhaka-1342, Bangladesh0000-0001-8932-7349Journal Article20260420Globally, air pollution has now become one of the most serious threats to human health. This situation is very dire at roadside areas and poses adverse health outcomes, especially in developing countries experiencing rapid urbanization and industrialization, such as Bangladesh. This study aims to investigate seasonal variation at roadside environments air pollution and its association with traffic volume in an urban area (Gazipur City), Bangladesh. Measurements of air pollutant (PM2.5) and traffic volume were estimated from seven different locations in Gazipur by using Aeroqual sensor and digital devices, respectively, during two distinct seasons (winter and summer) in 2024. Simple linear regression was used to estimate the association between roadside air pollution and traffic volume. Results indicated that the average PM2.5 concentration varied from 192 to 324 µg/m3 during winter and 27 to 72 µg/m3 during summer. Concentrations were highest in the morning, particularly during winter (311 µg/m³), approximately 36% higher than in the afternoon. Results also revealed that there is significant seasonal variation of roadside air pollution. During winter, the average PM2.5 concentration was 4.84 times higher than in the summer season. Additionally, air pollution showed significant association with traffic, explaining up to 92% and 77% of the variance in the winter and summer season, respectively. These findings highlight the importance of tighter control policies (such as proper maintenance of the vehicles, stricter fuel quality standards, phasing out unfit vehicles, proper traffic management etc.) aimed at lowering long-term average roadside air pollution levels and reducing traffic’s contribution to air pollution.https://jpoll.ut.ac.ir/article_108301_9c86bb85dabb3125c3e5b847b6f0fe05.pdfUniversity Of Tehran PressPollution2383-451X12320260901Separation and Characterization of Polycyclic Aromatic Hydrocarbons (PAHs) from Iraqi Oil Refinery Waste using Gas Chromatography-Mass Spectrometry (GC-MS)1000100910831310.22059/poll.2026.416175.3373ENZainab Talib AbdAl-KadhumDepartment of Optometry Techniques, Al-Musaib Technical College, Al-Furat Al-Awsat Technical University, Babylon, Iraq0000-0003-2816-8238Fatma HAbdullaUniversity of Baghdad Al-Jaderyia Campus College of Science-department of biology, Baghdad, IraqDhuha TAl-SultaniPolymer engineering and Petrochemical Industries Department, University of Babylon, IraqJournal Article20260616In the paper, polycyclic aromatic hydrocarbons (PAHs) in oil refinery waste produced in Baghdad Province, Iraq were analyzed with the help of gas chromatography-mass spectrometry (GC-MS). Wastewater and sludge samples of various sampling sites were analyzed and found to contain sixteen EPA priority PAHs. Soxhlet extraction method was used to extract the analytes and an Agilent 6890N/5975C GC-MS system equipped with HP-5MS capillary column was used to analyze them. Findings indicated the presence of total PAHs of 567.8 to 3750.7 ng/L in wastewater with high molecular weight PAHs (5-6 rings) taking over the profile (49.41%-81.67% of total PAHs). Phenanthrene, fluoranthene, pyrene and benzo[a]pyrene were the most widespread. Diagnostic ratio analysis and principal component analysis (PCA) revealed that the pyrogenic sources were the main cause of PAHs especially during the combustion of petroleum products and vehicle emissions. The incremental lifetime cancer risk (ILCR) evaluation showed values over 10 -4 which showed a strong carcinogenic risk that must be addressed immediately. The study will yield essential baseline information on monitoring and control of risks on the environments in the oil refining areas of Iraq.https://jpoll.ut.ac.ir/article_108313_73114e87346293f3b9f143c036801b1d.pdf