Environmental Chemistry and Ecotoxicology最新文献

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IF 8.2 Q1 ENVIRONMENTAL SCIENCES

Environmental Chemistry and Ecotoxicology

Pub Date : 2026-01-01

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IF 8.2 Q1 ENVIRONMENTAL SCIENCES

Environmental Chemistry and Ecotoxicology

Pub Date : 2026-01-01

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IF 8.2 Q1 ENVIRONMENTAL SCIENCES

Environmental Chemistry and Ecotoxicology

Pub Date : 2026-01-01

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IF 8.2 Q1 ENVIRONMENTAL SCIENCES

Environmental Chemistry and Ecotoxicology

Pub Date : 2026-01-01

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IF 8.2 Q1 ENVIRONMENTAL SCIENCES

Environmental Chemistry and Ecotoxicology

Pub Date : 2026-01-01

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IF 8.2 Q1 ENVIRONMENTAL SCIENCES

Environmental Chemistry and Ecotoxicology

Pub Date : 2026-01-01

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Periphytic biofilm at saline soil-water interface captured more cadmium than at non-saline ones: process, mechanism, and implication 含盐土壤-水界面的周围植物生物膜比非含盐土壤捕获更多的镉：过程、机制和启示

IF 8.2 Q1 ENVIRONMENTAL SCIENCES

Environmental Chemistry and Ecotoxicology

Pub Date : 2026-01-01 DOI: 10.1016/j.enceco.2026.01.015

Lingyuan Chen , Wanying Li , Shuai Pan , Yanyun Han , Dongmei Zhou , Yinlong Zhang , Junzhuo Liu , Yonghong Wu , Jiangang Han , Imran Ali , Haiying Lu

Soil salinity inhibits rice growth and enhances cadmium (Cd) mobility, threatening rice production and human health. Periphytic biofilm (PB), widely distributed at the soil-water interface of paddy filed, exhibits strong Cd capture capability. However, PB at saline soil-water interface (SPB) and its capability for Cd capture remain unclear. Herein, SPB from coastal mudflat-reclaimed paddy filed was sampled to evaluate its Cd captured process and mechanism by advanced technologies. Results showed that the process of Cd capture by SPB was a spontaneous physical adsorption process driven mainly by extracellular polymeric substances (EPS), which contributed over 90%. Among different EPS layer of SPB, the soluble EPS (S-EPS) accounting more than 50% for Cd adsorption. The maximum Cd adsorption capability of SPB was 619.7 mg/kg, which was 69% higher than PB grown on non-saline soil (NPB). The enhanced Cd adsorption capability of SPB was mainly attributed to the higher amount of EPS, which contained more CHON and CHONS compounds. Furthermore, non-invasive micro-test technique (NMT) analysis indicated ion exchange process occurring in SPB was 3 times higher than that in NPB. Finally, microbial metagenomic sequencing analysis showed that SPB possessed higher abundances of metal-tolerant taxa (e.g., Coleofasciculus chthonoplastes) and enhanced expression of Cd-related (e.g., cmtR) and EPS-related genes (e.g., lptG, mleP). These findings expand the understanding of Cd biogeochemistry in saline wetland with PB, but highlight the potential of SPB for Cd pollution remediation in paddy fields.

土壤盐碱化抑制水稻生长，提高镉（Cd）的流动性，威胁水稻生产和人类健康。周围植物生物膜（PB）广泛分布于稻田土壤-水界面，具有较强的镉捕获能力。然而，盐碱地-水界面（SPB）上的铅及其对镉的捕获能力尚不清楚。本文以滨海滩涂水田SPB为研究对象，对其采用先进技术捕获Cd的过程和机理进行了评价。结果表明，SPB吸附Cd的过程是一个自发的物理吸附过程，主要由胞外聚合物（EPS）驱动，贡献超过90%。在SPB的不同EPS层中，可溶性EPS （S-EPS）对Cd的吸附作用大于50%。SPB对Cd的最大吸附能力为619.7 mg/kg，比在非盐碱地（NPB）上生长的PB高69%。SPB对Cd的吸附能力增强主要是由于EPS含量较高，EPS中含有较多的CHON和CHONS化合物。此外，非侵入性微测试技术（NMT）分析表明，SPB发生的离子交换过程比NPB高3倍。最后，微生物宏基因组测序分析表明，SPB具有较高的耐金属类群（如Coleofasciculus chthonoplastes）丰度，cd相关基因（如cmtR）和eps相关基因（如lptG、mleP）表达增强。这些发现扩大了对含铅盐渍湿地Cd生物地球化学的认识，同时也突出了SPB在稻田Cd污染修复中的潜力。

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引用次数: 0

Long-term carbon disulfide exposure impairs pulmonary function in urban adults: Prevention insights from genetic susceptibility and lifestyle improvement in a repeated-measured cohort 长期二硫化碳暴露损害城市成年人肺功能：重复测量队列中遗传易感性和生活方式改善的预防见解

IF 8.2 Q1 ENVIRONMENTAL SCIENCES

Environmental Chemistry and Ecotoxicology

Pub Date : 2026-01-01 DOI: 10.1016/j.enceco.2026.01.020

Jiahao Song , Yongfang Zhang , Shuhui Wan , Xiaojie You , Wei Liu , Linling Yu , Yueru Yang , Ruyi Liang , Le Hong , Zhiying Huo , Qing Liu , Bin Wang , Weihong Chen

Background

Efforts on interactions of carbon disulfide (CS₂) exposure, genetic susceptibility, and lifestyle on pulmonary function that are critical to prevention are lacking.

Methods

Urinary CS₂ metabolite (2-thiothiazolidine-4-carboxylic acid, TTCA) and pulmonary function parameters for 4409 observations from 2025 individuals were measured at baseline and two follow-ups in the Wuhan-Zhuhai cohort. The polygenic risk score (PRS) was derived from 1020 pulmonary function-associated genetic variants, and the healthy lifestyle score (HLS) was comprehensively constructed using life habits including smoking, drinking, physical exercise, and diet status. Linear mixed-effects models with interaction plots were employed to estimate the independent and interaction effects of TTCA, PRS, and HLS on pulmonary function.

Findings

Elevated urinary TTCA, elevated PRS, and decreased HLS were significantly associated with reduced ratio of forced expiratory volume in the first second to forced vital capacity (FEV₁/FVC) and peak expiratory flow (PEF) (all P < 0.05). Notably, the estimated adverse effect of urinary TTCA on PEF interactively became more pronounced with increasing PRS or/and decreasing HLS (P _interaction < 0.05). Particularly, the most substantial effects of urinary TTCA on PEF were observed in participants with high PRS and low HLS in both cross-sectional and longitudinal analyses, with the estimated effects of −90.56 mL/s (95% confidence interval: −146.66, −34.71) for continuous TTCA cross-sectionally and −406.31 mL/s (−746.61, −64.63) for persistently high TTCA longitudinally.

Conclusion

Our findings highlight that reducing CS₂ exposure and improving lifestyle, particularly in individuals with higher genetic susceptibility to pulmonary function decline, may help in the early prevention of pulmonary injury from CS₂ exposure.

背景二硫化碳（CS2）暴露、遗传易感性和生活方式对肺功能的相互作用对预防至关重要，但缺乏相关研究。方法对武汉-珠海队列中2025例患者的4409例血清CS2代谢物（2-硫代噻唑烷-4-羧酸，TTCA）和肺功能参数进行基线和两次随访。多基因风险评分（PRS）来源于1020个肺功能相关的遗传变异，健康生活方式评分（HLS）由吸烟、饮酒、体育锻炼和饮食状况等生活习惯综合构建。采用带交互作用图的线性混合效应模型来估计TTCA、PRS和HLS对肺功能的独立和交互作用。结果尿TTCA升高、PRS升高、HLS降低与第一秒用力呼气量与用力肺活量之比（FEV1/FVC）及呼气峰流量（PEF）降低显著相关（P < 0.05）。值得注意的是，随着PRS的增加或/和HLS的降低，尿TTCA对PEF的相互作用的不良影响变得更加明显（P相互作用<； 0.05）。特别是，在横断面和纵向分析中，尿TTCA对PEF的影响最显著的是高PRS和低HLS的参与者，连续TTCA横断面的估计影响为- 90.56 mL/s(95%置信区间：- 146.66,- 34.71)，而持续高TTCA纵向的估计影响为- 406.31 mL/s（- 746.61, - 64.63）。结论减少CS2暴露和改善生活方式，特别是对肺功能下降遗传易感性较高的个体，可能有助于早期预防CS2暴露引起的肺损伤。

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PFAS bioaccumulation in food crops: Structure-informed machine learning and mechanistic evidence for priority control PFAS在粮食作物中的生物积累：结构信息机器学习和优先控制的机制证据

IF 8.2 Q1 ENVIRONMENTAL SCIENCES

Environmental Chemistry and Ecotoxicology

Pub Date : 2026-01-01 DOI: 10.1016/j.enceco.2025.12.029

Yuhan Cui , Wenyu Xiao , Yisu Fang , Beicheng Li , Maosheng Zheng , Yu Li

Per- and polyfluoroalkyl substances (PFASs), as globally emerging persistent organic pollutants, pose severe threats to agroecosystems due to their ubiquity and bioaccumulation potential. In this study, 108 environmentally detected PFASs were systematically evaluated using molecular docking to characterize their accumulation in wheat, tomato, and strawberry root-stem tissues. A hierarchical evaluation framework was established to generate prioritized control lists, identifying 15, 16, and 8 high-risk PFASs in wheat, tomato, and strawberry, respectively, with 16 compounds consistently detected across crops. Source apportionment revealed food packaging, wastewater, landfill leachate, personal care products, and paints as key entry pathways into agricultural environments. Building on this foundation, a machine learning prediction model was constructed to extend the evaluation to 6203 PFASs. The results highlighted that emerging structural features, including cyclic, heterocyclic, quaternary ammonium, and amphoteric groups, substantially enhance crop bioaccumulation effects. Furthermore, for the first time, crop-specific adverse outcome pathway (AOP) frameworks were established, providing mechanistic insights into PFAS bioaccumulation in crops. Protein-ligand docking further demonstrated that highly bioaccumulative PFASs engage in stronger hydrogen bonding, hydrophobic, and electrostatic interactions with key receptors, thereby validating structure-activity relationships underlying their enhanced accumulation. This study provides robust mechanistic evidence and predictive insight into the environmental fate and bioaccumulation behavior of PFASs in agroecosystems, offering a scientific basis for exposure assessment and ecological risk management.

全氟烷基和多氟烷基物质作为全球新出现的持久性有机污染物，由于其普遍存在和生物积累潜力，对农业生态系统构成严重威胁。本研究利用分子对接技术对108种环境检测到的全氟磺酸进行了系统评价，以表征它们在小麦、番茄和草莓根茎组织中的积累特征。建立了分级评价框架，生成了优先控制列表，分别确定了小麦、番茄和草莓中的15、16和8种高风险PFASs，其中16种化合物在作物中一致检测到。来源分析显示，食品包装、废水、垃圾填埋场渗滤液、个人护理产品和油漆是进入农业环境的主要途径。在此基础上，构建了机器学习预测模型，将评估扩展到6203个PFASs。结果表明，新出现的结构特征，包括环、杂环、季铵和两性基团，大大增强了作物的生物积累效应。此外，首次建立了作物特异性不良后果途径（AOP）框架，为PFAS在作物中的生物积累提供了机制见解。蛋白质-配体对接进一步表明，高生物蓄积性PFASs与关键受体进行更强的氢键、疏水和静电相互作用，从而验证了其增强蓄积性背后的结构-活性关系。本研究为全氟辛烷在农业生态系统中的环境命运和生物积累行为提供了强有力的机制证据和预测性见解，为全氟辛烷的暴露评估和生态风险管理提供了科学依据。

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IF 8.2 Q1 ENVIRONMENTAL SCIENCES

Environmental Chemistry and Ecotoxicology

Pub Date : 2026-01-01

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