Environmental Geochemistry and Health最新文献

{"title":"Tiered ecological risk assessment of perfluoroalkyl acid mixtures based on relative potency factor and species sensitivity distribution.","authors":"Jianming Jiang, Xun Wang, Xi-Long Zhang, Hui Liu, Wen-Jun Hong, Minjie Li, Liang-Hong Guo, Cheng Ye, Hai-Wei Luo","doi":"10.1007/s10653-025-02572-z","DOIUrl":"https://doi.org/10.1007/s10653-025-02572-z","url":null,"abstract":"<p><p>The Qiantang River, Zhejiang Province's largest water system, faces significant perfluoroalkyl acids (PFAAs) pollution concerns. However, the absence of water quality standards tailored to the river's aquatic life hinders comprehensive assessment of the compounds' combined toxicity and ecological risks. This research aims to investigate the distribution, sources, and ecological risks associated with PFAAs in the waters and sediments of the Qiantang River. The concentrations of total PFAAs (∑PFAAs) in water samples were found to range from 4.05 to 3694 ng/L, while in sediment samples, they ranged from 7.68 to 54.1 ng/g dry weight. Notably, the concentration of ∑PFAAs in water is significantly elevated during the low-flow period compared to both the high-water and normal-water periods, but these seasonal and hydrological changes don't significantly affect PFAAs levels in sediment. The spatial distribution showed a decrease followed by an increase in PFAAs concentrations from upstream (Quzhou City) to downstream (Hangzhou City), with higher levels near neighboring cities and densely populated areas. PFAAs concentrations in sediments showed no clear spatial variation. The acute and chronic toxicity parameters for indigenous aquatic organisms were assessed utilizing the species sensitivity distribution method in conjunction with the relative potency factor. Using perfluorooctanoic acid (PFOA) toxic equivalent concentrations and a four-tier ecological risk assessment methodology, it was determined that PFAAs in the water pose a significant risk to aquatic organisms. Notably, the chronic risk associated with these substances warrants greater attention than the acute risk.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 7","pages":"253"},"PeriodicalIF":3.2,"publicationDate":"2025-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144247050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Hydrogeochemical investigation and fluoride levels in lakes: a comprehensive health risk assessment.","authors":"Mrunmayee Manjari Sahoo, Janaki Ballav Swain","doi":"10.1007/s10653-025-02562-1","DOIUrl":"https://doi.org/10.1007/s10653-025-02562-1","url":null,"abstract":"<p><p>The study investigates the key hydrogeochemical relationships between salts and ions, their spatial distribution, sources of occurrence, and the non-malignant health effects associated with fluoride contamination risk in the lakes of Rajasthan, India, considering a cluster of 18 lakes. The findings highlight the significant influence of both anthropogenic activities and natural lithology on these lakes, which serve as crucial sources of potable and domestic water supply. Water quality parameters such as BOD, pH, Fe, Mn²⁺, PO₄³⁻, F⁻, and HCO₃⁻ exceeded the permissible limits set by the WHO. Correlation analysis revealed positive associations, whereas the dissemination of F^- resulted in low to moderate correlation at p < 0.005 with TDS (R² = 0.37), bicarbonate, HCO₃^- (R² = 0.42), EC (R² = 0.3654), Na⁺ (R² = 0.39), Ca²⁺ (R² = 0.49), TH (R² = 0.29), Mg²⁺ (R² = 0.45), Al³⁺ (R² = 0.42). The piper diagram showed that the lakes exhibit an alkaline nature, with Ca-HCO3 (68.5%) and Ca-Mg-HCO3 (17.5%) as the dominant hydrogeochemical compositions with high pH, high bicarbonate ions, and elevated levels of Mg²⁺ and SO₄^2- ions. The values of HQI are ranging from 0.34 to 24.67 for infants (age 0-2 years), from 0.22 to 16.67 for children (age 3-11 years), from 0.18 to 12.675 for teenagers (age 12-19 years) and from 0.14 to 11.34 for adults (age 20-65 years). The study area, including regions like Udaipur, Jodhpur, Alwar, Ajmer, and Udaipur, showed that approximately 52% of the population falls within Category F2 (Fluoride concentrations between 0.5 mg/L and 1.5 mg/L).</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 7","pages":"252"},"PeriodicalIF":3.2,"publicationDate":"2025-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144247043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Multi-indices decision-making incorporating environmental capacity for assessing brownfield sites safety.","authors":"Jianfang Wu, Xinfu Chen, Chen Chen, Manting Liu, Shen Wang, Ci Zhao","doi":"10.1007/s10653-025-02504-x","DOIUrl":"https://doi.org/10.1007/s10653-025-02504-x","url":null,"abstract":"<p><p>Rapid urbanization and industrial growth in China have increased brownfield site reclamation, the sustainable remediation for urban transformation and enhancing ecosystem services. However, traditional brownfield safety assessment strategies impose unnecessary costs since excessive remediation. Herein, a comprehensive system integrated by soil self-purification, potential ecological risks and human health risks is developed to investigate the safety of brownfield sites. Indices, including soil environmental loading capacity (SELC), and Nemerow integrated pollution index (NIPI), were introduced to assess heavy metals (HMs) pollution. Results show that 72.05% of the sites are identified as moderate pollution, where Cd, As, and Cr(VI) are at heavy pollution, incorporating soil self-purification. The average values of potential ecological risk (PERI) reached 6615.00, posing a significant damage to the local ecosystem, and Cd was identified as main ecological hazards in the study sites. Furthermore, the health risk assessment shows that children's health risks are higher than that of adults, with non-carcinogenic risk to children (2.60) and adults (0.41), and carcinogenic risk to children (2.30 × 10^-3) and adults (1.12 × 10^-4). Utilizing a multi-index decision-making approach, it is determined that 19.30% of the site exhibit high-risk values, between concentration screening (11.40%) and risk screening (83.30%) base on single-indices. The study sheds light on the comprehensive assessment of brownfield site safety.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 7","pages":"250"},"PeriodicalIF":3.2,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144233526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Spatio-temporal assessment of heavy metal contamination in groundwater along Madhuana drain, Faisalabad: source apportionment and health risk analysis.","authors":"Muhammad Hassan Bashir, Abubakar Asif, Hamaad Raza Ahmad, Asad Abbas, Muhammad Tahir Shehzad","doi":"10.1007/s10653-025-02563-0","DOIUrl":"https://doi.org/10.1007/s10653-025-02563-0","url":null,"abstract":"<p><p>Trace metals are among the most critical pollutants in wastewater, contributing to severe groundwater contamination, particularly near wastewater canals. Study novelty is that seasonal variations of groundwater metals and their associated sources through the Positive Matrix Factorization Model, with health risks through skin exposure, have not been well understood in Faisalabad along wastewater drains. This study investigates groundwater quality in the Madhuana drain and its sub-drains (Satiana and Khanuana) by examining chemical parameters, water quality indices, and trace metal concentrations (Cd, Cr, Cu, Mn, Ni, Pb, and Zn) in samples collected during the summer (n = 21) and winter (n = 21) seasons of 2023-2024. The heavy metals primary sources were anthropogenic, such as industrial effluent discharge, household waste, and agricultural runoff. Based on seasonal results, physico-chemical, biological parameters and trace metals concentrations were higher in the winter than summer season, and these parameters exceeded permissible limits of national and international guidelines. Spatial contamination follows a pattern: Satiana drain (high contamination), Madhuana drain (medium contamination), and Khanuana drain (low contamination). Satiana, Madhuana, and Khanuana drains groundwater quality have been classified as \"very poor\", \"poor\", and \"slightly poor\", respectively, making the water unsuitable for human intake. Health risk analyses reveal low non-carcinogenic risks (HQ < 1) from ingesting and dermal exposure, with children at higher risk than adults. During both seasons, the carcinogenic risk for Cd, Cr, Ni, and Pb was under acceptable ranges (TCR < 1). The research is based on a one-year data set, which may not have captured long-term trends, and it is limited to heavy metal contamination, not including organic and microbial contaminants. Future studies with wider monitoring as well as detailed pollutant analysis will be required. For ensuring drinking water safety, regular monitoring and remedial measures must be adopted.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 7","pages":"251"},"PeriodicalIF":3.2,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144247045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Tracing contamination in mining areas through sulfur and oxygen isotopes in groundwater sulfates: a case study from the Apuan Alps (Italy).","authors":"Stefano Natali, Linda Franceschi, Roberto Giannecchini, Massimo D'Orazio, Antonio Delgado-Huertas, Giovanni Zanchetta, Marco Doveri","doi":"10.1007/s10653-025-02565-y","DOIUrl":"10.1007/s10653-025-02565-y","url":null,"abstract":"<p><p>Groundwater contamination from legacy mining activities is a significant environmental concern, particularly in karst regions with vulnerable aquifers. This study investigates the isotopic composition of groundwater sulfates in a former mining area (Apuan Alps, Italy) to identify contamination sources and assess aquifer vulnerability. Sulfur and oxygen isotopes (δ³⁴S and δ¹⁸O) of dissolved sulfates, combined with hydrochemical data, distinguish sulfide-derived sulfate, originating from acid mine drainage and sulfide oxidation, from sulfate released through evaporitic dissolution. The results show that some groundwater springs near mining sites are influenced by the oxidation of sulfide minerals and the dissolution of secondary Fe-Al-K sulfates, as evidenced by depleted δ³⁴S and δ¹⁸O values and the presence of trace metals, including thallium. In contrast, other springs exhibit isotopically enriched δ³⁴S and δ¹⁸O signatures, characteristic of the dissolution of Triassic evaporites, indicating deeper aquifers protected from mining-related contamination. Seasonal isotopic variations reveal the mixing of shallow and deep groundwater flow components, with dilution effects observed during recharge periods. These findings underscore the effectiveness of isotopic tools in tracing sulfate origin and highlight the risks of contamination in shallow karst systems.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 7","pages":"249"},"PeriodicalIF":3.2,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12141376/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144224779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of soil physical, chemical and biological indicators in industrial towns: a case study in a Chinese town.","authors":"Caixia Liu, Qingying Gao, Shuhe Zhang, Linhui Liao, Jingjing Chen, Liang Wang","doi":"10.1007/s10653-025-02567-w","DOIUrl":"https://doi.org/10.1007/s10653-025-02567-w","url":null,"abstract":"<p><p>Understanding soil properties is essential for optimizing land use and rehabilitating degraded soils in industrial towns. In this study, 27 physical, chemical and biological soil properties from topsoil (0-20 cm) of paddy (PF), vegetable (VF) and abandoned fields (AF) were measured and calculated the soil quality index (SQI). Results showed PF had higher soil organic carbon (SOC), total nitrogen (TN), alkaline nitrogen (AN), cation exchange capacity (CEC), and total water-soluble salts (TWS) than VF and AF, while AF exhibited higher soil pH, bulk density (BD), and available phosphorus (AP) and potassium (AK). Soil Hg, Pb, Cd, Cu, and Zn in VF were higher than those in PF and AF. Enzyme activities (α-glucosidase, AG; β-glucosidase, BG; β-D-cellobiosidase, CB; xylanase, XYL; β-N-acetyl glucosaminidase, NAG) in PF were 9.8-71.8% higher than in VF and AF. Among the three land-use types, bacterial abundance in PF was the highest, while fungal abundance in AF was the highest. PF (0.63) exhibited higher SQI values compared to VF (0.49) and AF (0.51), with overall soil quality in the industrial town graded medium to low. Random forest model identified soil biological properties (AG, BG, CB, XYL, fungal abundance, and bacterial diversity) and heavy metals (As, Ni, and Zn) significantly affected SQI, with CB showing the strongest effect in industrial towns (P < 0.05). These findings indicate that integrated agronomic practices aimed at enhancing soil microbial diversity, abundance, and activity and mitigating heavy metal contamination can effectively improve the soil quality of industrial towns.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 7","pages":"248"},"PeriodicalIF":3.2,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144224706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Multivariate analysis of potential health hazards of manganese via dietary exposure of widely consumed vegetables amended with municipal solid waste.","authors":"Asma Ashfaq, Zafar Iqbal Khan, Kafeel Ahmad, Hamid Raza, Muhammad Nazim, Ajaz Ahmad","doi":"10.1007/s10653-025-02559-w","DOIUrl":"https://doi.org/10.1007/s10653-025-02559-w","url":null,"abstract":"<p><p>Improper disposal of municipal solid waste in metropolitan and semi-urban regions presents a significant global challenge, contributing to heavy metal contamination and associated health risks. This study assessed the ecological and anthropogenic health risks of manganese contamination resulting from the dietary intake of vegetables cultivated using municipal solid waste amendments in Sargodha, Pakistan. Commonly consumed vegetables (n = 15) were grown in pots over two years (2022-2023) with soil and municipal solid waste mixtures (100/0, 75/25, 50/50, and 25/75; w/w), designated as T0, T1, T2, and T3, respectively. Manganese concentrations were analyzed in soil (n = 600), vegetables (n = 600), and residents' blood serum (n = 240) using an atomic absorption spectrophotometer. Manganese levels ranged from 15.49 to 18.97 mg kg⁻¹ in soil, 0.508-5.483 mg kg⁻¹ in vegetables, and 0.0015-0.0043 mg L⁻¹ in serum. The highest manganese concentration was detected in S. oleracea during T3 in Year 2, while the lowest was observed in C. sativus during T0 in Year 1. Although these concentrations were within FAO/WHO permissible limits, the elevated manganese levels in S. oleracea may still pose a moderate risk if consumed frequently, whereas C. sativus presents a negligible risk. A strong positive correlation was observed between vegetable samples from Year 1 and Year 2 (r = 0.93, p < 0.01), indicating a significant relationship across the two years. The PCA results indicate that S. oleracea (PC1 = 3.9645) and C. sativum (PC1 = 2.6912) exhibit strong positive associations, while C. sativus (PC1 =  - 1.3125) and C. vulgaris (PC1 =  - 1.0466) show strong negative correlations. PC2 values were relatively lower, indicating weaker associations across species. The computed indices (BCF, PLI, EF, EF%, HRI, DIM, Igeo, EDI, EDD, and THQ) were consistently below the threshold of 1, indicating negligible concentrations in both soil and vegetables, thereby confirming the safety of the local population upon ingestion. To mitigate the potential risk of manganese accumulation from MSW, implementing regulated composting practices, adopting soil amendments to minimize metal uptake, and promoting public awareness regarding safe vegetable consumption are essential. Furthermore, continuous monitoring and the establishment of strict regulatory guidelines are crucial to prevent excessive heavy metal buildup in the food chain.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 7","pages":"247"},"PeriodicalIF":3.2,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144224778","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Taguchi method optimization for efficient recovery of heavy metals from mining solid waste.","authors":"Loughlaimi Intissar, Bakher Zineelabidine, Zouhri Abdeljalil","doi":"10.1007/s10653-025-02557-y","DOIUrl":"https://doi.org/10.1007/s10653-025-02557-y","url":null,"abstract":"<p><p>Environmental contamination by heavy metals poses a significant challenge, particularly in regions affected by mining activities. This study focuses on the optimization of leaching conditions for the recovery of iron (Fe), aluminum (Al), magnesium (Mg), and cadmium (Cd) from mining solid waste using nitric acid. Utilizing the Taguchi method (L18 experimental design), a robust statistical approach, a series of experiments were designed to systematically vary key process parameters, including acid concentration, temperature, and leaching time, to identify the optimal conditions for maximum metal recovery. The experimental design considered three levels of acid concentration (2%, 5%, and 10%), stirring time (15, 30, and 60 min), and two levels of temperature (24 °C and 50 °C). The results indicated that the most effective leaching of Mg occurred at a concentration of 10%, a leaching time of 30 min, and a temperature of 50 °C. For Al, increasing nitric acid concentrations improved the leaching efficiency, with an optimum leaching time of 30 min and lower temperatures being favorable. Cd leaching was more efficient at higher concentrations and higher temperatures, with 30 min leaching time. Fe leaching showed improved performance with an increasing concentration, peaking after 45 min of leaching and favoring lower temperatures.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 7","pages":"246"},"PeriodicalIF":3.2,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144208029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Effect of coal mining subsidence on soil microbial communities in mining areas with high groundwater levels.","authors":"Ruiping Xu, Junying Li, Xinju Li, Wen Song","doi":"10.1007/s10653-025-02554-1","DOIUrl":"https://doi.org/10.1007/s10653-025-02554-1","url":null,"abstract":"<p><p>In high groundwater level mining areas, coal mining has led to severe surface subsidence, which not only alters soil physicochemical properties but also destabilizes microbial communities, ultimately impairing ecosystem functions. This study explores the impact of mining-induced subsidence on soil microbial communities in regions with high groundwater and aims to uncover the mechanisms driving these shifts. We collected surface, middle, and deep soil samples from the subsidence areas of both the deep (T1) and shallow (T2) coal seams of the No. 3 Coal Mine in Jining, Shandong province, along with their respective control areas (W1 and W2). The physicochemical properties and microbial community composition of these samples were analyzed. The results indicated that coal mining subsidence significantly alters soil properties and reshaped microbial community structures. Compared to non-subsidence areas, soil nutrient content in subsidence areas decreased by 7.96-43.95%, while soil pH (pH) decreased by 6.33%. In contrast, soil water content (SWC) and bulk density (BD) increased by approximately 12.63 and 6.04%, respectively. Concurrently, microbial community richness and diversity declined by 16.41 and 6.65%, respectively. Despite this decline, the relative abundance of certain microbial taxa, including Actinobacteria, Chloroflexi, and Myxococcota, was higher in subsidence areas. Structural equation modeling further revealed that coal mining subsidence, in conjunction with soil physicochemical properties, accounted for 51-72% of the observed variation in microbial communities. Among the measured factors, soil available potassium (AK) had a significant direct influence on microbial communities, whereas SWC emerged as the most influential indirect factor. These findings provide critical insights into the ecological consequences of coal mining subsidence in high groundwater level areas and offer valuable guidance for land reclamation and soil ecological restoration efforts.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 7","pages":"245"},"PeriodicalIF":3.2,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144208017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Utilization of charnockite rock as manufactured-aggregate for construction industry: a case study from Thiruvakkarai quarry and M-sand plant in Tamil Nadu, India.","authors":"B Balakrishna Prasanna, G R Senthil Kumar, T Subramani, Ramamohana Reddy Bellum","doi":"10.1007/s10653-025-02545-2","DOIUrl":"https://doi.org/10.1007/s10653-025-02545-2","url":null,"abstract":"<p><p>Environmental concerns and the depletion of natural sand resources demand sustainable alternatives for construction materials. This study evaluates the feasibility of charnockite rock as a source for manufactured sand and coarse aggregates for use in concrete and mortar. Rock aggregate and manufactured sand samples from the Thiruvakkarai region, Tamil Nadu, India, were analyzed for geological, petrographic, physical, chemical and mechanical properties. Charnockite exhibited high specific gravity, low water absorption and optimal density making it ideal for concrete production. Petrographic analysis revealed a mineral composition rich in quartz, feldspar and pyroxene, enhancing strength, durability and environmental resistance. Chemical analysis confirmed high silica content (58.05%) with minimal deleterious substances, ensuring compatibility with cementitious systems. The aggregates used in this study comply with the provisions of IS 383:2016. The key mechanical properties include an aggregate impact value of 8.9%, a Los Angeles Abrasion value of 36.3%, and an aggregate crushing value of 22.1%. These values indicate that the aggregates meet the required limits for concrete applications, ensuring adequate strength and durability. The results confirm the suitability of the selected aggregates for use in concrete, aligning with the prescribed standards. Manufactured sand from charnockite surpassed conventional river sand in 28-day compressive strength, establishing it as a superior alternative. Its use reduces dependence on river sand, mitigating environmental degradation, reduces carbon footprint and promoting eco-friendly construction. This research provides a comprehensive foundation for utilizing charnockite-based aggregates in infrastructure projects and promotes sustainable development in the construction industry.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 7","pages":"243"},"PeriodicalIF":3.2,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144198516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}