MnFe layered double hydroxides confined MnO < sub > x < /sub > for peroxymonosulfate activation: A novel manner for the selective production of singlet oxygen
Environ Pollut. 2024 Mar 26;348:123865. doi: 10.1016/j.envpol.2024.123865. Online ahead of print.ABSTRACTSinglet oxygen (1O2) is a reactive species for the selective degradation of stubborn organic pollutants. Given its resistance to harsh water environment, the effective and exclusive generation of 1O2 is acknowledged as a key strategy to mitigate water production costs and ensure water supply safety. Herein, we synthesized MnOx intercalated MnFe layered double hydroxides (MF-MnOx) to selectively produce 1O2 through the activation of PMS. The distinctive confined structure endowed MF-MnOx with a special pathway for the PM...
Source: Environmental Pollution - March 28, 2024 Category: Environmental Health Authors: Hanxuan Zeng Bufan Yang Jinchen Zhang Hao Zhu Jing Deng Zhou Shi Shiqing Zhou Haojie Zhang Anhong Cai Lin Deng Source Type: research
Reactive oxygen species mediated extracellular polymeric substances production assisting the recovery of Thalassiosira pseudonana from polystyrene micro and nanoplastics exposure
Environ Pollut. 2024 Mar 26:123850. doi: 10.1016/j.envpol.2024.123850. Online ahead of print.ABSTRACTAs emerging pollutants in the aquatic environments, micro- and nano-plastics (MNPs) aroused widespread environmental concerns for their potential threats to the ecological health. Previous research has proved that microalgae growth could recover from the MNPs toxicities, in which the extracellular polymeric substances (EPS) might play the key role. In order to comprehensively investigate the recovery process of microalgae from MNPs stress and the effecting mechanisms of EPS therein, this study conducted a series of experime...
Source: Environmental Pollution - March 28, 2024 Category: Environmental Health Authors: Bihan Zhang Ziqi Wang Danrui Li Luying Li Yirong Zhao Xuexi Tang Yan Zhao Source Type: research
Increased m < sup > 6 < /sup > A modification of BDNF mRNA via FTO promotes neuronal apoptosis following aluminum-induced oxidative stress
Environ Pollut. 2024 Mar 26:123848. doi: 10.1016/j.envpol.2024.123848. Online ahead of print.ABSTRACTN6-methyladenosine (m6A) RNA modification is a new epigenetic molecular mechanism involved in various biological or pathological processes. Exposure to aluminum (Al) has been considered to promote neuronal apoptosis resulting in cognitive dysfunction, yet whether m6A modification participates in the underlying mechanism remains largely unknown. Here, rats exposed to aluminum-maltolate [Al(mal)3] for 90 days showed impaired learning and memory function and elevated apoptosis, which were related to the increased m6A level and...
Source: Environmental Pollution - March 28, 2024 Category: Environmental Health Authors: Jing Song Jiarui Hao Yang Lu Xiaohui Ding Mujia Li Yulu Xin Source Type: research
Impacts of ethanol blended fuels and cold temperature on VOC emissions from gasoline vehicles in China
Environ Pollut. 2024 Mar 26:123869. doi: 10.1016/j.envpol.2024.123869. Online ahead of print.ABSTRACTThe Chinese central government has initiated pilot projects to promote the adoption of gasoline containing 10%v ethanol (E10). Vehicle emissions using ethanol blended fuels require investigation to estimate the environmental impacts of the initiative. Five fuel formulations were created using two blending methods (splash blending and match blending) to evaluate the impacts of formulations on speciated volatile organic compounds (VOCs) from exhaust emissions. Seven in-use vehicles covering China 4 to China 6 emission standar...
Source: Environmental Pollution - March 28, 2024 Category: Environmental Health Authors: Yihuan Cao Haiguang Zhao Shaojun Zhang Xian Wu James E Anderson Wei Shen Timothy J Wallington Ye Wu Source Type: research
Global discharge of microplastics from mechanical recycling of plastic waste
Environ Pollut. 2024 Mar 26:123855. doi: 10.1016/j.envpol.2024.123855. Online ahead of print.ABSTRACTThe increasing production of plastic products and generation of plastic waste have had increasingly negative environmental impacts. Although recycling could reduce plastic pollution, microplastics can be generated during the process of crushing plastic products during mechanical recycling. We conducted crushing tests with 13 different plastics and documented the size distribution of particles generated. We then estimated the discharge of microplastics associated with recycling and their removal in wastewater treatment plant...
Source: Environmental Pollution - March 28, 2024 Category: Environmental Health Authors: Go Suzuki Natsuyo Uchida Kosuke Tanaka Osamu Higashi Yusuke Takahashi Hidetoshi Kuramochi Naohisa Yamaguchi Masahiro Osako Source Type: research
LncRNA NR_030777 promotes mitophagy by targeting CDK1-related mitochondrial fission and ATG12 to attenuate paraquat-induced Parkinson's disease
Environ Pollut. 2024 Mar 26:123875. doi: 10.1016/j.envpol.2024.123875. Online ahead of print.ABSTRACTWith the evidence emerging that abnormal expression of long noncoding RNAs (lncRNAs) are involved in onset of Parkinson's disease (PD), the role of NR_030777 contributing to this disease is of great interest. We recently found that a novel lncRNA "NR_030777" demonstrates protective effects on PQ-induced neurodegeneration. However, the underlying molecular mechanisms of NR_030777 in the regulation of mitochondrial fission and mitophagy involved in PQ-induced neuronal damage remain to be explored. NR_030777 brain conditional ...
Source: Environmental Pollution - March 28, 2024 Category: Environmental Health Authors: Nengzhou Chen Hong Hu Jianping Tang Fuli Zheng Zhenkun Guo Xinpei Lin Michael Aschner Wenya Shao Guangxia Yu Ping Cai Wei-Chun Chou Siying Wu Huangyuan Li Source Type: research
Improvement of the anthropogenic emission rate estimate in Ulaanbaatar, Mongolia, for 2020-21 winter
Environ Pollut. 2024 Mar 26:123870. doi: 10.1016/j.envpol.2024.123870. Online ahead of print.ABSTRACTUlaanbaatar (UB), the fast-growing capital of Mongolia, is known for its world's worst level of particulate matter (PM) concentrations in winter. However, current anthropogenic emission inventories over the UB are based on data from more than fifteen years ago, and satellite observations are scarce because UB is in high latitudes. During the winter of 2020-21, the first period of the Fine Particle Research Initiative in East Asia considering the National Differences (FRIEND), several times higher concentrations of PM in UB ...
Source: Environmental Pollution - March 28, 2024 Category: Environmental Health Authors: Hyung-Min Lee Eunlak Choi Yong Pyo Kim Tseren-Ochir Soyol-Erdene Amgalan Natsagdorj Zhijun Wu Mijung Song Changhyuk Kim Kyoung-Soon Jang Junyoung Ahn Atsushi Matsuki Esmatullah Torabi Jung-Hun Woo Chang Hoon Jung Ji Yi Lee Source Type: research
Mechanistic insight into biotransformation of novel triazine-based flame retardant 1,3,5-Tris(2,3-Dibromopropyl)-1,3,5-triazinane-2,4,6-trione by human cytochrome P450s
In this study, we integrated the computational simulations with in vitro metabolism experiments to investigate the metabolic activity and mechanism of an emerging pollutant, 1,3,5-tris(2,3-dibromopropyl)-1,3,5-triazinane-2,4,6-trione (TDBP-TAZTO), catalyzed by human CYP450s. The results highlight the important contributions of CYP2E1, 3A4 and 2C9 to the biotransformation of TDBP-TAZTO, leading to the identification of four distinct metabolites. The effective binding conformations governing biotransformation reactions of TDBP-TAZTO within active CYP450s are unveiled. Structural instability of primary hydroxyTDBP-TAZTO produ...
Source: Environmental Pollution - March 28, 2024 Category: Environmental Health Authors: Guangcai Ma Kan Ma Jing Zhang Xianglong Zhao Qiuyi Wang Yewen Chen Jiayu Lu Xiaoxuan Wei Xueyu Wang Haiying Yu Source Type: research
Aggregation of graphene oxide upon the stripping of oxidized debris: An experimental and molecular dynamics simulation study
Environ Pollut. 2024 Mar 26:123884. doi: 10.1016/j.envpol.2024.123884. Online ahead of print.ABSTRACTThe most recent structural study of graphene oxide (GO) indicates that the oxidized debris (ODs) adhered to as-prepared GO will strip in certain aquatic settings. The impact of ODs stripping on the characteristics of GO has been widely reported, but its effects on GO aggregation have received less attention. Here, the influence of OD stripping on the GO aggregation property was identified, and the aggregation of as-prepared GO and GO upon OD stripping was compared. Upon ODs stripping, the pKa values of GO shifted from 3.91,...
Source: Environmental Pollution - March 28, 2024 Category: Environmental Health Authors: Jiahai Yu Wenli Li Dan Zhang Tinglin Huang Huan Tang Source Type: research
Ecotoxicological effects of leachate from e-cigarettes and e-liquid on the performance of perennial ryegrass (Loliumperenne)
Environ Pollut. 2024 Mar 26:123888. doi: 10.1016/j.envpol.2024.123888. Online ahead of print.ABSTRACTOnce littered, disposable e-cigarettes present a complex type of waste in the environment. They typically contain a lithium battery, electronics to produce vapour and remnant e-liquid, all of which could leach into the environment. The effects of littered e-cigarettes are not well understood, and they have not been tested in terrestrial ecosystems. To address this, an experiment was set up to assess how leachate from e-cigarettes with or without a battery, but also e-liquid on its own can alter fundamental physical characte...
Source: Environmental Pollution - March 28, 2024 Category: Environmental Health Authors: Bas Boots Dannielle S Green Amy C M Wright Brigitta Olah-Kovacs Louise Tovey Source Type: research
Contribution of different land use catchments on the microplastic pollution in detention basin sediments
This study examines the relationship between MP pollution in detention basin sediments and land use in the investigated catchments. The study of stormwater management infrastructure, mainly in detention basins, has enabled the quantification of MP abundance in sediments conveyed by stormwater in urban areas. Sediment sampling was conducted in ten detention basins and one combined sewer overflow (CSO) structure in the Lyon metropolitan area, France. These basins correspond to stormwater outlets of representative urban catchment areas. MP extraction involves densimetric separation and organic matter degradation. MPs were the...
Source: Environmental Pollution - March 28, 2024 Category: Environmental Health Authors: Zo é Iannuzzi Brice Mourier Thierry Winiarski Gislain Lipeme-Kouyi Philippe Polom é R émy Bayard Source Type: research
Evaluating microcystinase A-based approach on microcystins degradation during harvested cyanobacterial blooms
In this study, we therefore introduced a novel approach, the "captured biomass-MlrA enzymatic MC degradation", by enriching microcystinase A (MlrA) via fermentation and spraying it onto salvaged Microcystis slurry to degrade all MCs. After storing the harvested Microcystis slurry, a rapid release of extracellular MCs occurred within the initial 8 hours, reaching a peak concentration of 5.33 μg/mL at 48 hours during the composting process. Upon spraying the recombinant MlrA crude extract (about 3.36 U) onto the Microcystis slurry in a ratio of 0.1% (v/v), over 95% of total MCs were degraded within a 24-hour period. Importa...
Source: Environmental Pollution - March 28, 2024 Category: Environmental Health Authors: Siyu Yang Jun Zuo Hans-Peter Grossart Guofei Dai Jin Liu Lirong Song Nanqin Gan Source Type: research
Meta-analysis of impacts of microplastics on plant heavy metal accumulation
Environ Pollut. 2024 Mar 26:123787. doi: 10.1016/j.envpol.2024.123787. Online ahead of print.ABSTRACTThe co-occurrence of microplastics (MPs) and heavy metal(loid)s (HMs) has attracted growing scientific interest because of their wide distribution and environmental toxicity. Nevertheless, the interactions between MPs and HMs in soil-plant systems remain unclear. We conducted a meta-analysis with 3226 observations from 87 independent studies to quantify the impact of MPs addition on the plant biomass and HMS accumulation. Co-occurrence of MPs and HMs (except for As) induced synergistic toxicity to plant growth. MPs promoted...
Source: Environmental Pollution - March 28, 2024 Category: Environmental Health Authors: Li Chen Nan Chang Tianyi Qiu Na Wang Qingliang Cui Zhao Shuling Fengyu Huang Hansong Chen Yi Zeng Faqin Dong Linchuan Fang Source Type: research
Dibutyl phthalate exposure induced mitochondria-dependent ferroptosis by enhancing VDAC2 in zebrafish ZF4 cells
This study used zebrafish ZF4 cells to investigate the toxicity of ferroptosis with underlying mechanisms in response to DBP exposure. Results showed that DBP induced ferroptosis, characterized by accumulation of ferrous iron, lipid peroxidation, and decrease of glutathione peroxidase 4 levels in a time-dependent manner, subsequently reduced cell viability. Transcriptome analysis revealed that voltage-dependent anion-selective channel (VDAC) in mitochondrial outer membrane was upregulated in ferroptosis signaling pathways. Protecting mitochondria with a VDAC2 inhibitor or siRNAs attenuated the accumulation of mitochondrial...
Source: Environmental Pollution - March 28, 2024 Category: Environmental Health Authors: Tingting Hou Xiaoteng Fan Qianqing Zhang Haowei Zhang Dingfu Zhang Lu Tao Zaizhao Wang Source Type: research
Insights into the role of VOCs properties on thermal desorption behaviors of two porous polymeric resins
In this study, the thermal desorption behaviors for eight VOCs on hypercrosslinked polymeric resin (HPR) and macroporous polymeric resin (MPR) were investigated through isothermal desorption and temperature programmed desorption (TPD). Compared with MPR, HPR with more micropores exhibited a lower desorption rate constant, lower desorption efficiency and higher desorption activation energy due to the strong binding energy generated between VOCs molecules and narrow micropores. As the polarizability of VOCs increased, the desorption rate constants on two porous polymeric resins decreased, while the desorption activation ener...
Source: Environmental Pollution - March 28, 2024 Category: Environmental Health Authors: Huijuan Liu Yansong Yu Chao Long Source Type: research
