Harmful effects of true-to-life nanoplastics derived from PET water bottles in human alveolar macrophages
In this study, we have used polyethylene terephthalate (PET) NPLs resulting from the degradation of PET water bottles. Since inhalation is an important exposure route to environmental MNPLS, we have used mouse alveolar macrophages (MH-S) as a target cell, and the study focused only on the cells that have internalized them. This type of approach is novel as it may capture the realistic adverse effects of PETNPLs only in the internalized cells, thereby mitigating any biases while assessing the risk of these MNPLs. Furthermore, the study utilized a set of biomarkers including intracellular reactive oxygen species (ROS) levels...
Source: Environmental Pollution - March 21, 2024 Category: Environmental Health Authors: Alireza Tavakolpournegari Aliro Villacorta Michelle Morataya-Reyes J éssica Arribas Arranz Gooya Banaei Susana Pastor Antonia Vel ázquez Ricard Marcos Alba Hern ández Balasubramanyam Annangi Source Type: research
Existence of typical winter atmospheric circulation patterns leading to high PM < sub > 2.5 < /sub > concentration days in east Asia
Environ Pollut. 2024 Mar 19:123829. doi: 10.1016/j.envpol.2024.123829. Online ahead of print.ABSTRACTUnderstanding the atmospheric circulation patterns responsible for severe air pollution events in East Asia is important because East Asia is one of the most polluted regions in the world, particularly during the boreal winter (December-January-February). Here, by conducting GEOS-Chem simulation with fixed anthropogenic emission sources, we found that there exist three typical atmospheric circulation patterns conducive to leading to high concentrations of particulate matter with a diameter less than or equal to 2.5 μm (PM2...
Source: Environmental Pollution - March 21, 2024 Category: Environmental Health Authors: Yong-Cheol Jeong Sang-Wook Yeh Jaein I Jeong Rokjin J Park Yuxuan Wang Source Type: research
Revealing chemical release from plastic debris in animals' digestive systems using nontarget and suspect screening and simulating digestive fluids
Environ Pollut. 2024 Mar 19;348:123793. doi: 10.1016/j.envpol.2024.123793. Online ahead of print.ABSTRACTPlastic debris in the environment are not only pollutants but may also be important sources of a variety of contaminants. This work simulated kinetics and potential of chemical leaching from plastic debris in animals' digestive systems by incubating polyvinyl chloride (PVC) cord particles in artificial digestive fluids combined with nontarget and suspect screening based on UHPLC-Orbitrap HRMS. Impacts of particle size, aging, and digestive fluid were investigated to elucidate mechanisms of chemical leaching. Thousands o...
Source: Environmental Pollution - March 21, 2024 Category: Environmental Health Authors: Xianzhi Peng Tao Yang Shang Guo Jing Zhou Guangshi Chen Zewen Zhu Jianhua Tan Source Type: research
β-cyclocitral induced rapid cell death of Microcystis aeruginosa
In this study, M. aeruginosa was exposed to 0-300 mg/L BCC, and the physiological responses were comprehensively studied at the cellular, molecular, and transcriptomic levels. The result indicated that the lethal effect was concentration-dependent; 100 mg/L BCC only caused recoverable stress, while 150-300 mg/L BCC caused rapid rupture of cyanobacterial cells. Scanning electron microscope images suggested two typical morphological changes exposed to above 150 mg/LBCC: wrinkled/shrank with limited holes on the surface at 150 and 200 mg/L BCC exposure; no apparent shrinkage at the surface but with cell perforation at 250 and...
Source: Environmental Pollution - March 21, 2024 Category: Environmental Health Authors: Xuejian Wang Huansheng Cao Yinjie Zhu Tingru Zhou Fei Teng Yi Tao Source Type: research
Selective and ultrafast oxidation of multiple pollutants by biomorphic diatomite-based catalyst and stable catalytic Fenton-like membrane: Degradation behavior and mechanism analysis
Environ Pollut. 2024 Mar 19;348:123825. doi: 10.1016/j.envpol.2024.123825. Online ahead of print.ABSTRACTCarbon-driven advanced oxidations show great potential in water purification, but regulating structures and properties of carbon-based catalysts to achieve ultrafast Fenton-like reactions remains challenging. Herein, a biomorphic diatomite-based catalyst (BD-C) with Si-O doping was prepared using natural diatomite as silicon source and porous template. The results showed that the metal-free BD-C catalyst exhibited ultrafast oxidation performances (0.95-2.58 min-1) towards a variety of pollutants in PMS-based Fenton-like...
Source: Environmental Pollution - March 21, 2024 Category: Environmental Health Authors: Kexin Yin Wei Hong Jingren Yang Yanwei Li Yue Gao Qian Li Xing Xu Source Type: research
Space-specific flux estimation of atmospheric chemicals from point sources to soil
Environ Pollut. 2024 Mar 19:123831. doi: 10.1016/j.envpol.2024.123831. Online ahead of print.ABSTRACTPredicting chemical flux to soil from industrial point sources accurately at a regional scale has been a significant challenge due to high uncertainty in spatial heterogeneity and quantification. To address this challenge, we developed an innovative approach by combining California Air Resources Board Puff (CALPUFF) and mass balance models, leveraging their complementary strengths in quantitative accuracy and spatial precision. Specifically, CALPUFF was used to predict the polycyclic aromatic hydrocarbons (PAHs) flux to soi...
Source: Environmental Pollution - March 21, 2024 Category: Environmental Health Authors: Xinyue Chen Meie Wang Tian Xie Rong Jiang Weiping Chen Source Type: research
Environmentally relevant exposure to cotinine induces neurobehavioral toxicity in zebrafish (Danio rerio): A study using neurobehavioral and metabolomic approaches
Environ Pollut. 2024 Mar 19:123826. doi: 10.1016/j.envpol.2024.123826. Online ahead of print.ABSTRACTAs an important psychoactive substance, cotinine is ubiquitous in aquatic environment and poses a threat to aquatic organisms. However, the mechanism of its adverse health impacts remains unclear. We evaluated the effects of cotinine exposure at environmentally relevant concentrations on the development and locomotor behavior of zebrafish (Danio rerio) larvae using neurotransmitters and whole endogenous metabolism. Mild developmental toxicity and significant neurobehavior disorder, such as spontaneous movement (1-1000 μg/L...
Source: Environmental Pollution - March 21, 2024 Category: Environmental Health Authors: Dan Yang Wenfei Yu Jiajia Qu Yuexing Shen Jingtong Yu Ruirui Meng Zhen Tao Jiangfei Chen Wei Du Haitong Zhe Sun Yunhui Zhang Yuanchen Chen Meirong Zhao Source Type: research
Harmful effects of true-to-life nanoplastics derived from PET water bottles in human alveolar macrophages
In this study, we have used polyethylene terephthalate (PET) NPLs resulting from the degradation of PET water bottles. Since inhalation is an important exposure route to environmental MNPLS, we have used mouse alveolar macrophages (MH-S) as a target cell, and the study focused only on the cells that have internalized them. This type of approach is novel as it may capture the realistic adverse effects of PETNPLs only in the internalized cells, thereby mitigating any biases while assessing the risk of these MNPLs. Furthermore, the study utilized a set of biomarkers including intracellular reactive oxygen species (ROS) levels...
Source: Environmental Pollution - March 21, 2024 Category: Environmental Health Authors: Alireza Tavakolpournegari Aliro Villacorta Michelle Morataya-Reyes J éssica Arribas Arranz Gooya Banaei Susana Pastor Antonia Vel ázquez Ricard Marcos Alba Hern ández Balasubramanyam Annangi Source Type: research
Existence of typical winter atmospheric circulation patterns leading to high PM < sub > 2.5 < /sub > concentration days in east Asia
Environ Pollut. 2024 Mar 19:123829. doi: 10.1016/j.envpol.2024.123829. Online ahead of print.ABSTRACTUnderstanding the atmospheric circulation patterns responsible for severe air pollution events in East Asia is important because East Asia is one of the most polluted regions in the world, particularly during the boreal winter (December-January-February). Here, by conducting GEOS-Chem simulation with fixed anthropogenic emission sources, we found that there exist three typical atmospheric circulation patterns conducive to leading to high concentrations of particulate matter with a diameter less than or equal to 2.5 μm (PM2...
Source: Environmental Pollution - March 21, 2024 Category: Environmental Health Authors: Yong-Cheol Jeong Sang-Wook Yeh Jaein I Jeong Rokjin J Park Yuxuan Wang Source Type: research
Revealing chemical release from plastic debris in animals' digestive systems using nontarget and suspect screening and simulating digestive fluids
Environ Pollut. 2024 Mar 19:123793. doi: 10.1016/j.envpol.2024.123793. Online ahead of print.ABSTRACTPlastic debris in the environment are not only pollutants but may also be important sources of a variety of contaminants. This work simulated kinetics and potential of chemical leaching from plastic debris in animals' digestive systems by incubating polyvinyl chloride (PVC) cord particles in artificial digestive fluids combined with nontarget and suspect screening based on UHPLC-Orbitrap HRMS. Impacts of particle size, aging, and digestive fluid were investigated to elucidate mechanisms of chemical leaching. Thousands of ch...
Source: Environmental Pollution - March 21, 2024 Category: Environmental Health Authors: Xianzhi Peng Tao Yang Shang Guo Jing Zhou Guangshi Chen Zewen Zhu Jianhua Tan Source Type: research
β-cyclocitral induced rapid cell death of Microcystis aeruginosa
In this study, M. aeruginosa was exposed to 0-300 mg/L BCC, and the physiological responses were comprehensively studied at the cellular, molecular, and transcriptomic levels. The result indicated that the lethal effect was concentration-dependent; 100 mg/L BCC only caused recoverable stress, while 150-300 mg/L BCC caused rapid rupture of cyanobacterial cells. Scanning electron microscope images suggested two typical morphological changes exposed to above 150 mg/LBCC: wrinkled/shrank with limited holes on the surface at 150 and 200 mg/L BCC exposure; no apparent shrinkage at the surface but with cell perforation at 250 and...
Source: Environmental Pollution - March 21, 2024 Category: Environmental Health Authors: Xuejian Wang Huansheng Cao Yinjie Zhu Tingru Zhou Fei Teng Yi Tao Source Type: research
Selective and ultrafast oxidation of multiple pollutants by biomorphic diatomite-based catalyst and stable catalytic Fenton-like membrane: Degradation behavior and mechanism analysis
Environ Pollut. 2024 Mar 19:123825. doi: 10.1016/j.envpol.2024.123825. Online ahead of print.ABSTRACTCarbon-driven advanced oxidations show great potential in water purification, but regulating structures and properties of carbon-based catalysts to achieve ultrafast Fenton-like reactions remains challenging. Herein, a biomorphic diatomite-based catalyst (BD-C) with Si-O doping was prepared using natural diatomite as silicon source and porous template. The results showed that the metal-free BD-C catalyst exhibited ultrafast oxidation performances (0.95-2.58 min-1) towards a variety of pollutants in PMS-based Fenton-like rea...
Source: Environmental Pollution - March 21, 2024 Category: Environmental Health Authors: Kexin Yin Wei Hong Jingren Yang Yanwei Li Yue Gao Qian Li Xing Xu Source Type: research
Removal of contaminants present in water and wastewater by cyclodextrin-based adsorbents: A bibliometric review from 1993 to 2022
In this study, a statistical analysis was performed using VOSviewer and Citespace to scrutinize 2038 articles published from 1993 to 2022. The investigation unveiled a notable upsurge in pertinent articles and citation counts, with China and USA contributing the highest publication volumes. The prevailing research focus predominantly revolves around the application of CD-based materials used as adsorbents to remove conventional contaminants such as dyes and metals. The CD chemistry allows the construction of materials with various architectures, including cross-linked, grafted, hybrid or supported systems. The main adsorbe...
Source: Environmental Pollution - March 20, 2024 Category: Environmental Health Authors: Chong Liu Gr égorio Crini Lee D Wilson Paramasivan Balasubramanian Fayong Li Source Type: research
Impact of typhoon events on microplastic distribution in offshore sediments in Leizhou Peninsula of the south China sea
This study investigated microplastics ranging in size from 50 μm to 5 mm in sediment. Microscopic inspection and μ-FTIR tests were used to identify microplastic characteristics from offshore surface sediments before and after typhoons. The average microplastic abundance in offshore sediments decreased from 18 ± 17 items/kg to 15 ± 15 items/kg after typhoons. Results show that typhoons only increase the microplastic abundance in topographically protected areas along the northeast coast of LZP, with no significant difference observed in other regions. The influence of typhoon on the morphological characteristics of micro...
Source: Environmental Pollution - March 20, 2024 Category: Environmental Health Authors: Feng Wang Anhua Lei Shengping Huang Lei Su Mingkun Li Nicholas J Craig Zhongping Lai Source Type: research
Safety attributes of Pseudomonas sp. P26, an environmental microorganism with potential application in contaminated environments
Environ Pollut. 2024 Mar 18:123818. doi: 10.1016/j.envpol.2024.123818. Online ahead of print.ABSTRACTCurrently, the selection of non-pathogenic microorganisms that lack clinically relevant antimicrobial resistance is crucial to bioaugmentation strategies. Pseudomonas sp. P26 (P26) is an environmental bacterium of interest due to its ability to remove aromatic compounds from petroleum, but its safety characteristics are still unknown. The study aimed to: a) determine P26 sensitivity to antimicrobials, b) investigate the presence of quinolone and β-lactam resistance genes, c) determine the presence of virulence factors, and...
Source: Environmental Pollution - March 20, 2024 Category: Environmental Health Authors: Constanza Bel én Lobo Roc ío Daniela Inés Molina Paula Moreno Mochi Juan Mart ín Vargas Mar ía Ángela Jure Mar ía Silvina Juárez Tomás Source Type: research
