China Geology最新文献

{"title":"Iron-manganese modified corncob biochar for fluoride removal from groundwater: Insights into adsorption mechanisms","authors":"Juan-juan Liu ,&nbsp;Si-yuan Ma ,&nbsp;Xin-wen Yang ,&nbsp;Wang-ying Chen ,&nbsp;Abdur Rashid","doi":"10.1016/S2096-5192(25)00092-8","DOIUrl":"10.1016/S2096-5192(25)00092-8","url":null,"abstract":"<div><div>Biochar, as an efficient, effective, and potential soil improver, has broad application prospects in the field of defluoridation. This study aimed to evaluate the defluoridation potential of iron (Fe) and manganese (Mn) co-modified biochar from groundwater. The varied Fe/Mn molar ratio (2:1 and 1:2) modified biochar was prepared by corncob with the pyrolysis temperature of 300°C, 400°C, and 500°C. Batch experiments for fluoride (F^‒) removal were performed by corncob biochar before and after Fe–Mn modified. Their composition, structure, and performance were analyzed by multiple characterization techniques to clarify F^‒ removal mechanisms. Our results indicated that unmodified corncob biochar produced at 400 °C (BC400) exhibited the highest F^‒ adsorption efficiency (87.3%) among three unmodified samples, attributable to its largest specific surface area (2.55 m²/g). Notably, F^‒ removal amounts by Fe-Mn modified BC400 were 2 times higher than BC400. The enhanced F^- removal performance of Fe–Mn modified biochar can be attributed to several mechanisms: (1) the modification produced rougher surface textures, resulting in an increased specific surface area (about 3.50 m²/g); (2) newly formed Fe–O and Mn–O bonds on the biochar surface facilitated the formation of complexes with F^‒; and (3) the adsorption results fitted well with pseudo-second-order and Freundlich models (<em>R</em>²&gt;0.98), indicating that the removal process involved physicochemical adsorption. These findings demonstrate that Fe–Mn modified biochar is a highly efficient and cost-effective material for F^‒ remediation and holds significant potential for application in contaminated groundwater and soil systems.</div></div>","PeriodicalId":45329,"journal":{"name":"China Geology","volume":"8 3","pages":"Pages 540-549"},"PeriodicalIF":4.7,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144756708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mineral component of mineralizations in different types of breast lesions and their correlation with diseases","authors":"Chang-qiu Wang ,&nbsp;Xiao Cheng ,&nbsp;Xiao Ge ,&nbsp;Hong-rui Ding ,&nbsp;Yan Li ,&nbsp;An-huai Lu","doi":"10.1016/S2096-5192(25)00087-4","DOIUrl":"10.1016/S2096-5192(25)00087-4","url":null,"abstract":"<div><div>Pathological mineralizations in breast lesions are closely associated with disease progression and serves as a critical diagnostic indicator. However, systematic understanding remains lacking regarding the phase categories, distribution patterns, and proportional occurrences of mineral phases across different breast lesion types. The diagnostic implications of specific phases, such as calcium oxalate, for distinguishing benign and malignant lesions remain controversial. This study employed polarizing microscopy, environmental scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDS), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), and Raman spectroscopy to analyze the phase composition of 61 mineralized samples from three lesion types: Invasive carcinoma, carcinoma in situ and benign lesions. Results demonstrate that breast lesion mineralizations predominantly comprise calcium phosphates, including hydroxyapatite (HA), amorphous calcium phosphate (ACP), and whitlockite, occasionally accompanied by calcium oxalate (monohydrate or dihydrate). Distinct distribution patterns and proportional occurrences of minerals were observed among the three types of lesion mineralizations. HA, as the predominant phase, was ubiquitously present across all three lesion categories. ACP, a mineralization precursor phase, emerged during early mineralization stages across all lesion types. Notably, whitlockite exclusively occurred in benign lesions and carcinoma in situ, with higher prevalence in benign cases, suggesting a progressive decline in Mg²⁺ concentration within the lesion microenvironment as malignancy advances. Calcium oxalate coexisted with HA in mineralized regions across all lesion types, and its presence in invasive carcinoma specimens warrants heightened clinical attention.</div></div>","PeriodicalId":45329,"journal":{"name":"China Geology","volume":"8 3","pages":"Pages 475-486"},"PeriodicalIF":4.7,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144757050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Occurrence, migration, and risk assessment of PPCPs in water bodies and sediments of river-type drinking water sources in eastern China","authors":"Ge Feng ,&nbsp;Guo-hui Lu ,&nbsp;Jiu-chen Liu ,&nbsp;Nan Gai ,&nbsp;Hui-lun Chen ,&nbsp;Qi-feng Tang ,&nbsp;Yong-liang Yang","doi":"10.1016/S2096-5192(25)00090-4","DOIUrl":"10.1016/S2096-5192(25)00090-4","url":null,"abstract":"<div><div>Pharmaceuticals and personal care products (PPCPs) are receiving attention as emerging pollutants due to their extensive applications and persistent emissions. The Qiantang River Basin, a representative region in eastern China that relies on surface water for drinking purposes, experiences the movement and accumulation of PPCPs in its water and sediment, which can directly affect the safety of drinking water in the basin. This study focuses on the Qiantang River Basin’s surface water, sediment, and drinking water to determine the occurrence and potential risks of 31 PPCPs. It aims to address whether PPCPs in the environment could migrate and accumulate, thereby affecting human health. The findings indicated that PPCPs are ubiquitous in various environmental media, with surface and pore water showing distinct spatial distribution characteristics, specifically, concentrations escalated with urban scale expansion, indicating that domestic sewage discharge is the primary source of PPCP input. Bisphenol A (BPA), ketoprofen (KTP), and diethyltoluamide (DEET) were the primary contaminants. The movement of PPCPs within the surface water-sediment-pore water system was affected by various circumstances. Substances like Sulfamethoxazole (SMX) (RQ&gt;10³) and KTP (RQ=22.3) present in surface water and sediment pose significant ecological concerns, and KTP and atrazine (ATZ) (0.6&lt;RQ&lt;2.1) also pose a high risk in drinking water. This study performed an extensive analysis of the distribution and risks associated with typical PPCPs in the Qiantang River Basin, offering a scientific foundation and theoretical support for research on the environmental behavior of PPCPs in this area and the development of targeted pollution control strategies.</div></div>","PeriodicalId":45329,"journal":{"name":"China Geology","volume":"8 3","pages":"Pages 514-525"},"PeriodicalIF":4.7,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144757053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research status and future prospects of Medical Geology","authors":"Hassina Mouri","doi":"10.1016/S2096-5192(25)00085-0","DOIUrl":"10.1016/S2096-5192(25)00085-0","url":null,"abstract":"","PeriodicalId":45329,"journal":{"name":"China Geology","volume":"8 3","pages":"Pages 469-470"},"PeriodicalIF":4.7,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144757045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Introduction to Longevity Counties in China","authors":"Qi-feng Tang ,&nbsp;Xin-lu Cui ,&nbsp;Si-wen Liu ,&nbsp;Da-wen Liu","doi":"10.1016/S2096-5192(25)00100-4","DOIUrl":"10.1016/S2096-5192(25)00100-4","url":null,"abstract":"","PeriodicalId":45329,"journal":{"name":"China Geology","volume":"8 3","pages":"Pages 631-634"},"PeriodicalIF":4.7,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144757047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Occurrence, migration, and ecological risk assessment of Neonicotinoid insecticides in water and sediments of Dongting Lake, China","authors":"Xiong Mao ,&nbsp;Yi Huang ,&nbsp;Zhi-tao Huo ,&nbsp;Jun Guo ,&nbsp;Cong Li ,&nbsp;Feng-cun Huang","doi":"10.1016/S2096-5192(25)00093-X","DOIUrl":"10.1016/S2096-5192(25)00093-X","url":null,"abstract":"<div><div>Neonicotinoid insecticides (NEOs) have become an integral part of the global insecticide market due to their high efficiency and low toxicity. However, their environmental persistence has raised significant ecological concerns. Dongting Lake represents a vital freshwater lake in China, and its ecosystem health directly affects regional ecological balance and people’s livelihoods. This study systematically investigated the occurrence characteristics and ecological risks of NEOs in water bodies and sediments across the Dongting Lake basin. Based on surface water and sediment samples collected from 26 representative sampling sites, this study quantified nine NEOs using liquid chromatography triple quadrupole mass spectrometry. Furthermore, it assessed ecological risks posed by the NEOs using the risk quotient (RQ) method and fugacity modeling. The results revealed the presence of six NEOs in the water bodies: imidacloprid (IMI), acetamiprid (ACE), clothianidin (CLO), thiamethoxam (THIA), flonicamid (FLO), and dinotefuran (DIN). The total concentrations of these six NEOs averaged 275.11 ng/L. Five predominant NEOs (i.e., IMI, THIA, ACE, CLO, and DIN) were identified in the sediments, with a mean concentration of 0.31 ng/g. The NEO concentrations in the water bodies across the Dongting Lake basin increased in the order of the Xiangjiang, Zishui, Yuanjiang, and Lishui rivers (collectively referred to as the Four Rivers), the mainstream of Dongting Lake, the Xinqiang River, the Miluo River, and the Hudu, Ouchi, and Songzi rivers (collectively referred to as the Three Outlets). Sediments from tributaries progressively accumulate in the lake. The ecological risk assessment identified IMI and DIN as the highest-risk compounds (RQ &gt; 1), with high-risk areas concentrated in the mainstream of Dongting Lake and the Ouchi, Miluo, and Hudu rivers. The fugacity model showed that IMI, ACE, and THIA are prone to diffuse from sediments to water bodies in most areas, with fugacity fractions (ff) values of greater than 0.5. In contrast, the mainstream of Dongting Lake acts as a sink of CLO and DIN (ff values: &lt; 0.5). Sediments at the lake’s outlet emerge as an important sink of NEOs. Based on the results of this study, it is advisable to strengthen the supervision of NEO applications in agricultural areas and to implement zonal control strategies. These measures will help reduce ecological risks and protect the safety of water ecosystems in the Dongting Lake region.</div></div>","PeriodicalId":45329,"journal":{"name":"China Geology","volume":"8 3","pages":"Pages 550-559"},"PeriodicalIF":4.7,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144756707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multi-compartmental migration and ecological-health risks of trace metals in Dexing mining concentration areas: A holistic quantitative assessment","authors":"Xiao-tao Zhang ,&nbsp;Jun-jie Hu ,&nbsp;Bin Shen ,&nbsp;Man-dan Huang ,&nbsp;Shan-hong Lan ,&nbsp;Zhi-hang Xin","doi":"10.1016/S2096-5192(25)00089-8","DOIUrl":"10.1016/S2096-5192(25)00089-8","url":null,"abstract":"<div><div>To address the critical gap in linking multi-compartmental transfer with risks of trace metals (Cd, Pb, As, Cr, Ni) in mining environments. This study systematically investigated the trans-media migration of Cd, Pb, As, Cr, and Ni in China’s Dexing copper mining district through paired sampling of water-amphibians, soil-earthworms, and air-lichens. Advanced methodologies were employed, including ICP-MS quantification for heavy metals, geochemical indices (Igeo, BCF, BAF) to assess bioavailability, NMDS for source apportionment, and HPLC to detect DNA methylation alterations. Aquatic systems exhibited severe Cd/Pb enrichment (16.25–24.42 μg/L; 11–15× WHO limits), while agricultural soils showed extreme Cd contamination (1.5 mg/kg; 15× background). Biota displayed metal-specific accumulation: frogs achieved BCFs &gt;1,000 for Pb/Cd, earthworms showed pH-modulated BAFs &gt;2.5 for Cd/As, and lichens recorded 100–1,000× atmospheric Cr enrichment. NMDS resolved three contamination pathways: mining-derived Cd/Pb/As (MDS1 = 2.56), atmospheric Cr (PC2 = 1.84), and geogenic Ni. Cd dominated ecological risks (Eri = 554.25; RI 300), while atmospheric Cr drove carcinogenic risks (TCR = 4.11×10⁻⁵) exceeding safety thresholds. The source-media-biota-risk framework pioneers the integration of geochemical transport with epigenetic toxicity biomarkers, demonstrating that sub-lethal Cd/Pb exposure induces genome-wide DNA hypomethylation (2.4%–6.6% reduction; <em>ρ</em> = −0.71 to −0.91). This paradigm shift prioritizes bioavailability-informed regulations over concentration-based metrics, offering actionable strategies for sustainable development goals-aligned mining pollution control.</div></div>","PeriodicalId":45329,"journal":{"name":"China Geology","volume":"8 3","pages":"Pages 500-513"},"PeriodicalIF":4.7,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144757052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fluorine distribution, health risk, and geological and anthropogenic controlling factors in central Guizhou Province, Southwest China","authors":"Xiu-jin Liu ,&nbsp;Li Zhang ,&nbsp;Zhi-zhuo Liu ,&nbsp;Ya-long Zhou ,&nbsp;Shi-qi Tang ,&nbsp;Fei Liu ,&nbsp;Min Peng ,&nbsp;Hang-xin Cheng ,&nbsp;Yan-fei Qi","doi":"10.1016/S2096-5192(25)00096-5","DOIUrl":"10.1016/S2096-5192(25)00096-5","url":null,"abstract":"<div><div>Fluorine (F)-enriched soils, resulting from geogenic processes or superimposed by anthropogenic activities, have raised significant concerns due to their phytotoxicity and potential threats to human health. Soils in central Guizhou Province exhibit F enrichment, with a mean F concentration of 1067 mg/kg. However, the associated human health risks and geochemical mechanisms driving F enrichment in these soils remain insufficiently understood. In areas with a natural geological background, the average concentrations of F in rice, vegetables, drinking water, and ambient air are 1.54 mg/kg, 0.54 mg/kg, 0.16 mg/L, and 0.29 μg/m³, respectively. In contrast, samples collected near phosphorous chemical plants demonstrate elevated F concentrations: 1.78 mg/kg in rice, 1.53 mg/kg in vegetables, 0.20 mg/L in drinking water, and 11.98 μg/m³ in ambient air. Fluorine in soils was immobilized by apatite and clay minerals, and hardly transferred into water and crops. The fixation of F^- by Ca²⁺ in water and by Fe/Al hydroxides and clay minerals in bottom sediment further reduces F concentrations in water. As a result, hazard quotient (<em>HQ</em>) values below 1.0 indicate negligible fluorine-related health risk in geological background regions. However, ambient air near phosphorous chemical plant exhibited a 41.3-fold increase in F concentration compared to geological background regions. Fluorine-laden emissions can be directly inhaled or deposited on vegetable leaves and orally ingested into human bodies. Improvement of F-rich waste gas disposal and restricted leafy vegetable cultivation are effective measures to reduce F health risks in phosphorous chemical plant regions.</div></div>","PeriodicalId":45329,"journal":{"name":"China Geology","volume":"8 3","pages":"Pages 586-597"},"PeriodicalIF":4.7,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144757057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Introduction to the Bama renowned longevity county in the Guangxi Zhuang Autonomous Region","authors":"Qi-feng Tang ,&nbsp;Lu-dan Zhang","doi":"10.1016/S2096-5192(25)00101-6","DOIUrl":"10.1016/S2096-5192(25)00101-6","url":null,"abstract":"","PeriodicalId":45329,"journal":{"name":"China Geology","volume":"8 3","pages":"Pages 635-638"},"PeriodicalIF":4.7,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144757048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Groundwater metal pollution and health risk assessment in river valley heavy industrial cities of arid regions in China","authors":"Shi-yu Liu ,&nbsp;Bing Yi ,&nbsp;Fei Liu ,&nbsp;Chun-yan Liu ,&nbsp;Shan-shan Yang ,&nbsp;Hui-xiang Zhang ,&nbsp;Wei Kang ,&nbsp;Kai-di Jiang","doi":"10.1016/S2096-5192(25)00091-6","DOIUrl":"10.1016/S2096-5192(25)00091-6","url":null,"abstract":"<div><div>Xining, a river valley city in China’s arid region, serves as an important industrial hub with a fragile ecological environment. While groundwater heavy metal pollution in this area has drawn increasing concern, the sources and associated human health risks remain inadequately understood. This study analyzed 144 shallow groundwater samples from urban Xining for 14 heavy metals (Fe, Al, B, Mn, Ba, Zn, Pb, Cr⁶⁺, Ni, Cu, Co, Sb, Cd, and As) using the Nemerow comprehensive pollution index, correlation analysis, and the USEPA health risk assessment model. Results identified Fe, Al, B, Mn, Ba, Pb, Cd, and As as the primary pollutants, especially concentrated in river valley plains. These contaminants primarily originate from natural sedimentary conditions and human activities such as industrial and agricultural development. The pollution indices for Al, Pb, Mn, and Fe exceeded clean water thresholds, indicating serious contamination and the need for enhanced regulation. Health risk assessments revealed that children face greater exposure risks than adults, with arsenic and nickel being the main contributors to carcinogenic risk. Sensitivity analysis further showed that As, Fe, and Cd posed the greatest non-carcinogenic and carcinogenic risks, particularly in human-impacted areas such as the Nanchuan and Beichuan valleys and Ganhegou. These findings provide essential insights for groundwater safety management in plateau river valley cities and similar vulnerable regions.</div></div>","PeriodicalId":45329,"journal":{"name":"China Geology","volume":"8 3","pages":"Pages 526-539"},"PeriodicalIF":4.7,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144757054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}