Journal of hazardous materials letters最新文献

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IF 8.1 Q1 ENGINEERING, ENVIRONMENTAL

Journal of hazardous materials letters

Pub Date : 2025-01-01

引用次数: 0

IF 8.1 Q1 ENGINEERING, ENVIRONMENTAL

Journal of hazardous materials letters

Pub Date : 2025-01-01

引用次数: 0

IF 8.1 Q1 ENGINEERING, ENVIRONMENTAL

Journal of hazardous materials letters

Pub Date : 2025-01-01

引用次数: 0

IF 8.1 Q1 ENGINEERING, ENVIRONMENTAL

Journal of hazardous materials letters

Pub Date : 2025-01-01

引用次数: 0

IF 8.1 Q1 ENGINEERING, ENVIRONMENTAL

Journal of hazardous materials letters

Pub Date : 2025-01-01

引用次数: 0

IF 8.1 Q1 ENGINEERING, ENVIRONMENTAL

Journal of hazardous materials letters

Pub Date : 2025-01-01

引用次数: 0

No traces of emerging and priority organic pollutants in the muscles of Procambarus clarkii suggest the feasibility of its regulated and sustainable control from uncontaminated environments 在克氏原螯虾的肌肉中没有新出现的和优先存在的有机污染物的痕迹，这表明在未受污染的环境中对其进行调控和可持续控制是可行的

IF 6.6 Q1 ENGINEERING, ENVIRONMENTAL

Journal of hazardous materials letters

Pub Date : 2024-12-30 DOI: 10.1016/j.hazl.2024.100140

Dario Savoca , Vincenzo Arizza , Gaetano Cammilleri , Leonardo Cerasino , Antonella Maccotta , Federico Marrone , Licia Pantano , Nico Salmaso , Francesco Paolo Faraone

A monitoring of organic contaminants in the muscles of the Procambarus clarkii and environmental samples of water and sediment was conducted in three Sicilian wetlands (Italy). The substances investigated in the biological samples were per- and polyfluoroalkyl substances (PFAS), phthalic acid esters (PAEs), pesticides, antibiotics, and microcystins (MCs), all of which were below the detection limit. Given that the Louisiana red swamp crayfish is considered a bioaccumulator, the results of this study indicate that these environments are not significantly contaminated by the selected pollutants. Furthermore, the study suggests the potential uses of the edible portions of this alien species. Despite P. clarkii cannot be marketed in several countries, including Italy, it is possible that the animal biomass obtained in the frame of the monitoring, control and eradication activities carried out by local authorities, could be exploited for various purposes, such as food, feed and biotechnology. This would reduce the costs associated with disposal and make these activities more sustainable in the long term, thereby contributing to the preservation of ecosystems that are currently threatened by this invasive species.

在意大利西西里的三个湿地对克氏原螯虾（Procambarus clarkii）肌肉中的有机污染物以及水和沉积物环境样本进行了监测。生物样品中检测的物质有全氟烷基和多氟烷基物质（PFAS）、邻苯二甲酸酯（PAEs）、农药、抗生素和微囊藻毒素（MCs），均低于检测限。考虑到路易斯安那州的红沼泽小龙虾被认为是一种生物蓄积器，本研究的结果表明，这些环境没有受到所选污染物的显著污染。此外，该研究还提出了这种外来物种可食用部分的潜在用途。尽管克拉氏杆菌不能在包括意大利在内的一些国家销售，但在地方当局开展的监测、控制和根除活动中获得的动物生物量有可能被用于各种目的，如食品、饲料和生物技术。这将减少与处理相关的成本，并使这些活动在长期内更具可持续性，从而有助于保护目前受到这种入侵物种威胁的生态系统。

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引用次数: 0

New Approach Methodologies: Physiological responses of daphnids to pharmaceutical mixtures 新方法方法：水蚤对药物混合物的生理反应

IF 6.6 Q1 ENGINEERING, ENVIRONMENTAL

Journal of hazardous materials letters

Pub Date : 2024-12-28 DOI: 10.1016/j.hazl.2024.100139

Emma Rowan , Anne Leung , Katie O’Rourke , Xiaofei Yin , Lorraine Brennan , Konstantinos Grintzalis

Conventional methods for water monitoring are insufficient to capture the impacts of pollution because of their sensitivity limits, while they also fail to provide mechanistic insight regarding the actions of pollutants. On the other hand, New Approach Methodologies are more and more introduced as supplementary tools that provide sensitive metrics for pollution assessment. In this context, freshwater sentinel species commonly known as water fleas were used to assess the impact of a pharmaceutical mixture. The pharmaceutical cocktail comprised of representatives of commonly encountered pharmaceuticals and specifically diclofenac, metformin, gabapentin, amoxicillin, trimethoprim, and erythromycin. Combining toxicity, phenotypic and molecular endpoints, results showed differences in mortality, feeding, key enzyme activities and metabolic perturbations, thus supporting a distinct pattern in physiological responses of daphnids that could be used to monitor and predict pollution early.

传统的水监测方法由于其灵敏度限制而不足以捕捉污染的影响，同时它们也不能提供有关污染物作用的机制见解。另一方面，越来越多地引入新方法方法作为补充工具，为污染评估提供敏感的指标。在这种情况下，通常称为水蚤的淡水哨兵物种被用来评估药物混合物的影响。药物鸡尾酒由常见药物的代表组成，特别是双氯芬酸、二甲双胍、加巴喷丁、阿莫西林、甲氧苄啶和红霉素。综合毒性、表型和分子终点，结果显示了水蚤在死亡率、摄食、关键酶活性和代谢扰动方面的差异，从而支持了水蚤生理反应的独特模式，可用于早期监测和预测污染。

引用次数: 0

Per- and polyfluoroalkyl substances in rainfall runoff from an AFFF-impacted concrete pad: A field simulation study 受afff影响的混凝土垫块降雨径流中的全氟和多氟烷基物质：一项实地模拟研究

IF 6.6 Q1 ENGINEERING, ENVIRONMENTAL

Journal of hazardous materials letters

Pub Date : 2024-11-28 DOI: 10.1016/j.hazl.2024.100137

Phong K. Thai , Jeffrey T. McDonough , Trent A. Key , Anita Thapalia , Scott Porman , Pritesh Prasad , Stephanie Fiorenza , Hirozumi Watanabe , Craig M. Barnes , Jochen F. Mueller

Per- and polyfluoroalkyl substances (PFAS) retained within hardscape have been observed to leach over time in numerous laboratory studies. The aim of this study was to measure the release of key PFAS in rainfall runoff from a concrete pad impacted by historical AFFF use at the field-scale. Rainfall simulations were conducted on a 5 m² (1 ×5 m) plot for 3 consecutive days. Runoff water was collected every 2 minutes and analyzed for 5 PFAS commonly associated with AFFF. Surface samples of the concrete were collected from the plot after the rainfall runoff experiment. Perfluorooctane sulfonate (PFOS) exhibited the highest concentrations within the concrete (up to ∼4000 μg kg⁻¹) and runoff water (up to 500 μg L⁻¹), followed by 6:2 fluorotelomer sulfonate (6:2 FTS). PFAS concentrations in runoff water were higher in the first sample and then decreased in the consecutive samples of each rainfall simulation. It is estimated that the percentage of the total PFAS mass within the surface of the concrete contributing to runoff samples ranged from 0.006 % (PFOS) to 0.031 % (PFHxA) per rainfall event. This suggests low but sustained PFAS leaching from AFFF-impacted concrete into runoff water. Our findings confirmed that concrete impacted by legacy use of AFFF is a likely secondary source of PFAS in runoff water and highlight some similarities and differences between laboratory- and field-scale rainfall simulations.

在许多实验室研究中，已观察到保留在硬景观中的全氟烷基和多氟烷基物质（PFAS）随着时间的推移会浸出。本研究的目的是在农田尺度上测量受历史AFFF使用影响的混凝土垫块降雨径流中关键PFAS的释放。在5 m2 （1 ×5 m）样地连续3天进行降雨模拟。每2 分钟收集一次径流水，并分析与AFFF相关的5种PFAS。雨水径流试验后，在小区内采集混凝土表面试样。全氟辛烷磺酸（PFOS）在混凝土中的浓度最高（高达~ 4000 μg kg−1），径流水中的浓度最高（高达500 μg L−1），其次是6:2氟端聚体磺酸（6:2 FTS）。径流水中PFAS浓度在第一个样品中较高，在每个降雨模拟的连续样品中依次下降。据估计，每次降雨事件中，混凝土表面总PFAS质量对径流样品的贡献百分比从0.006 % （PFOS）到0.031 % （PFHxA）不等。这表明受afff影响的混凝土中低但持续的PFAS浸出到径流水中。我们的研究结果证实，受AFFF遗留使用影响的混凝土可能是径流水中PFAS的次要来源，并强调了实验室和现场尺度降雨模拟之间的一些异同。

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引用次数: 0

Effect of triclosan on phosphate solubilising bacteria in mangrove ecosystem: In-vitro and In-vivo 三氯生对红树林生态系统中磷酸盐增溶菌的体外和体内影响

IF 6.6 Q1 ENGINEERING, ENVIRONMENTAL

Journal of hazardous materials letters

Pub Date : 2024-11-19 DOI: 10.1016/j.hazl.2024.100136

R.K. Dash , K. Kumar , S.P. Shukla , S. Kumar , S. Kumar H , S. Karmakar , T. Paul

Triclosan (TCS) is a widely used biocide found in medicinal, household, and personal care products, frequently detected in various environmental matrices, posing significant threats to microbial communities and overall ecosystem functioning. This study evaluates the in vivo and in vitro effects of triclosan (TCS) on phosphate-solubilising bacteria (PSB) in mangrove ecosystems. Two experimental approaches were employed: a microcosm (in vivo) study and a laboratory (in vitro) analysis. Five isolated PSB strains—Sphingomonas paucimobilis, Rhizobium radiobacter, Serratia ficaria, Klebsiella oxytoca, and Klebsiella pneumoniae—were selected from the mangrove ecosystem for investigation. The minimum inhibitory concentration (MIC) results revealed that Klebsiella pneumoniae exhibited the highest resistance to TCS among the tested strains. In vivo experiments demonstrated a significant reduction in soil-available phosphorus and enzymatic activities, including acid and alkaline phosphatase, dehydrogenase, and fluorescein diacetate (FDA) activity, in TCS-exposed samples throughout the exposure period. In vitro results showed that phosphate solubilisation decreased significantly with increasing TCS concentrations in all strains except Klebsiella pneumoniae. Overall, TCS effectively inhibited the growth of PSB in mangrove ecosystems. This study is the first to report the impact of TCS on PSB in mangroves and provides valuable data for future research on microbial communities in such environments.

三氯生（TCS）是一种广泛应用于医药、家庭和个人护理产品中的杀菌剂，经常在各种环境矩阵中检测到，对微生物群落和整体生态系统功能构成重大威胁。本研究评估了三氯生（TCS）对红树林生态系统中磷酸盐溶解菌（PSB）的体内和体外影响。采用两种实验方法：微观（体内）研究和实验室（体外）分析。从红树林生态系统中分离出少动鞘氨单胞菌、放射根瘤菌、沙雷氏菌、氧化克雷伯菌和肺炎克雷伯菌5株PSB进行研究。最低抑菌浓度（MIC）结果显示肺炎克雷伯菌对TCS的耐药性最高。体内实验表明，在整个暴露期间，暴露于tcs的样品中土壤有效磷和酶活性（包括酸性和碱性磷酸酶、脱氢酶和双乙酸荧光素（FDA）活性）显著降低。体外实验结果显示，除肺炎克雷伯菌外，所有菌株的磷酸盐增溶作用均随TCS浓度的增加而显著降低。总体而言，TCS有效抑制了红树林生态系统中PSB的生长。本研究首次报道了TCS对红树林PSB的影响，为今后研究此类环境下的微生物群落提供了有价值的数据。

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