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Total 83489 results found since Jan 2013.
Association of serum phthalates exposure with incident type 2 diabetes risk in Chinese population: A nested case-control study
Ecotoxicol Environ Saf. 2023 Sep 18;265:115493. doi: 10.1016/j.ecoenv.2023.115493. Online ahead of print.ABSTRACTProspective epidemiological evidence was lacking on the association of phthalates (PAEs) exposure with incident type 2 diabetes mellitus (T2DM) risk. In present nested case-control study, we identified 1006 T2DM cases and matched 1006 controls based on Dongfeng-Tongji cohort study, and 6 PAEs were detected in baseline serum. The conditional logistic regression model, Bayesian kernel machine regression (BKMR) model and Quantile-based g-computation were applied to evaluate the associations of determined PAEs, eith...
Source: Ecotoxicology and Environmental Safety - September 20, 2023 Category: Environmental Health Authors: Shiyang Zhang Xu Cheng Chengyong Jia Jun An Xin Zhang Peiwen Li Youbing Guan Yan Yan Zhuoya Zhao Yuenan Liu Tao Jing Meian He Source Type: research
Prediction of groundwater quality index to assess suitability for drinking purpose using averaged neural network and geospatial analysis
This study revealed that over 50 % of the evaluated wells (Total 8326 wells) were inappropriate as sources of drinking water, indicating a pressing need for policy revision. The averaged neural network model achieved a high predictive accuracy of approximately 95 % for GQI grades, outperforming other classification models. The introduction of 2D spatial analysis in conjunction with machine learning algorithms notably increased the predictive accuracy for unevenly distributed groundwater samples. Moreover, this combined approach enabled the intuitive visualization of groundwater vulnerability across various regions, which c...
Source: Ecotoxicology and Environmental Safety - September 20, 2023 Category: Environmental Health Authors: Seok Hyun Ahn Do Hwan Jeong MoonSu Kim Tae Kwon Lee Hyun-Koo Kim Source Type: research
Deposition of secondary organic aerosol in human lung model: Effect of photochemically aged aerosol on human respiratory system
This study is to estimate the fraction of aerosol deposition using a multiple-path-particle-dosimetry (MPPD) model. For relevancy of real life, the model employed measured concentrations of toluene-derived fresh and aged SOA produced within serially connected smog chamber and PAM-OFR (Potential Aerosol Mass-Oxidation Flow Reactor) under atmospheric environmental conditions (NOx and relative humidity). The number concentrations and chemical composition of fresh and aged aerosols produced within the chambers were measured using Scanning Mobility Particle Sizer (SMPS) and High-Resolution Time-of-Flight Aerosol Mass Spectromet...
Source: Ecotoxicology and Environmental Safety - September 20, 2023 Category: Environmental Health Authors: Hyeon-Ju Oh Yanfang Chen Hwajin Kim Source Type: research
Does functionalised nanoplastics modulate the cellular and physiological responses of aquatic fungi to metals?
Environ Pollut. 2023 Sep 18:122549. doi: 10.1016/j.envpol.2023.122549. Online ahead of print.ABSTRACTCo-contamination of freshwaters by nanoplastics (NPs; ≤ 1 μm) and metals is an emerging concern. Aquatic hyphomycetes play a crucial role as primary decomposers in these ecosystems. However, concurrent impacts of NPs and metals on the cellular and physiological activities of these fungi remain poorly understood. Here, the effects of environmentally realistic concentrations of two types of polystyrene (PS) NPs (bare and -COOH; up to 25 μg L-1) and copper (Cu; up to 50 μg L-1) individually and all possible combinations (...
Source: Environmental Pollution - September 20, 2023 Category: Environmental Health Authors: Juliana Barros Santosh Kumar Sahadevan Seena Source Type: research
Regulating oxygen vacancies and hydroxyl groups of α-MnO < sub > 2 < /sub > nanorods for enhancing post-plasma catalytic removal of toluene
In this study, α-MnO2 nanorods with tunable oxygen vacancies and hydroxyl groups were synthesized by two-step hydrothermal process to enhance their activity for deep oxidation of toluene. Hydrochloric acid (HCl) was used to assist in synthesis of α-MnO2 nanorods with tunable oxygen vacancies, furtherly, more hydroxyl groups were introduced to HCl-assisted synthesized α-MnO2 by K+ supplement. The results showed that the as-synthesized nanorods exhibited superior activity, improved by nearly 30% removal efficiency of toluene compared to pristine MnO2 at SIE = 339 J/L, and reaching high COx selectivity of 72% at SIE = 483 ...
Source: Environmental Research - September 20, 2023 Category: Environmental Health Authors: Tiancheng Wen Jing Wang Jian Zhang Chao Long Source Type: research
Eight novel brominated flame retardants in indoor and outdoor dust samples from the E-waste recycling industrial park: Implications for human exposure
This study investigated the occurrence characteristics, distribution, and exposure profiles of eight common NBFRs and their derivatives in an e-waste recycling industrial park in central China and illustrated the differences in various functional zones in the recycling park. The highest level of ΣNBFRs in dust samples was found in e-waste storage area at median concentration of 27,400 ng/g, followed by e-waste dismantling workshops (23,300 ng/g), workshop outdoor area (7770 ng/g), and residential area outdoor (536 ng/g). In the e-waste dismantling associated dust samples, tetrabromobisphenol A bis(2,3-dibromopropyl ether)...
Source: Environmental Research - September 20, 2023 Category: Environmental Health Authors: Yongyin Lan Yuxian Liu Yanpeng Cai Qingping Du Hongkai Zhu Haitao Tu Zhipeng Cheng Jingchuan Xue Source Type: research
Retention of methyl iodide on metal and TEDA impregnated activated carbon using indigenously developed setup
Environ Res. 2023 Sep 18:117133. doi: 10.1016/j.envres.2023.117133. Online ahead of print.ABSTRACTRemoval of methyl iodide (CH3I) from the air present within nuclear facilities is a critical issue. In case of any nuclear accident, there is a great need to mitigate the radioactive organic iodide immediately as it accumulates in human bodies, causing severe consequences. Current research focuses on removing organic iodides, for which the surface of activated carbon (AC) was modified by impregnating it with different metals individually, i.e. Ag, Ni, Zn, Cu and with the novel combination of these four metals (AZNC). After the...
Source: Environmental Research - September 20, 2023 Category: Environmental Health Authors: Talhat Yaqoob Masroor Ahmad Yasir Faiz Farman Ali Amjad Farooq Faisal Faiz Attaullah Shah Muhammad Asim Irshad Naseem Irfan Nisar Ali Sahid Mehmood Source Type: research
How does financial decentralization synergies carbon reduction and pollution control in China?
This study looks at how carbon reduction, pollution management, and monetary decentralization in China all work together for a win-win situation. Since China is the most significant contributor to global warming, the country must implement policies to cut carbon emissions and curb pollution. One possible answer is financial decentralization, delegating federal financial responsibilities, and decisions to state and regional governments. The study used the weighted matrix analysis technique, LM matrix analysis technique, and ARDL short-run and long-run analysis estimates. However, the degree to which it will help China reduc...
Source: Environmental Science and Pollution Research International - September 20, 2023 Category: Environmental Health Authors: Dongmei Mu Daifu Yang Source Type: research
Adsorption performance and kinetics of Cr(VI) onto activated carbons derived from the waste leaves of invasive plants Rhus typhina and Amorpha fruticosa
Environ Sci Pollut Res Int. 2023 Sep 20. doi: 10.1007/s11356-023-29833-7. Online ahead of print.ABSTRACTTo maximize the potential of biomass from invasive plants, waste leaves from Rhus typhina (RT) and Amorpha fruticosa (AF) were used to prepare activated carbons (ACs) for the efficient removal of chromium from wastewater. Six ACs were prepared by CO2 activation at 850 °C with varying flow rates (500, 1000, and 1500 mL/min) and characterized by yield, pH, N2 adsorption isotherm, FTIR, SEM, TG, and XPS. The adsorption isotherm and kinetics for chromium removal were analyzed. The outcomes showed that the ACs had mesoporous...
Source: Environmental Science and Pollution Research International - September 20, 2023 Category: Environmental Health Authors: Tuerxun Tuerhong Zaituniguli Kuerban Maryamgul Abdurahman Cai Xinbin Amanula Yimingniyazi Source Type: research
Effects of salinity on methane emissions and methanogenic archaeal communities in different habitat of saline-alkali wetlands
This study conducted simulation experiments of increased salinity to investigate the impact of salinity, habitat, and their interactions on CH4 emissions, as well as to examine the response of methanogenic archaea to salinity. Overall, salinity inhibited CH4 emissions. But there were different responses in the three habitat soils. Salinity decreased the relative abundance of methanogenic archaea and changed the community structure. In addition, salinity changed soil pH and dissolved organic carbon (DOC) and ammonium (NH4+) concentrations, which were significantly correlated with methanogenic archaea. Our study showed that ...
Source: Environmental Science and Pollution Research International - September 20, 2023 Category: Environmental Health Authors: Feng Li Huiju Li Huihui Su Wei Du Zhongyan Gao Huajun Liu Hong Liang Dawen Gao Source Type: research
Can network infrastructure construction improve the low-carbon innovation of Chinese enterprises?
This study considers the implementation of the "Broadband China" strategy as an exogenous policy shock and examines the impact of network infrastructure construction (NIC) on the low-carbon innovation (LCI) of enterprises and its underlying mechanisms by using a progressive difference-in-difference model based on the data of Chinese listed enterprises from 2009 to 2020. This study finds that NIC can improve the LCI of enterprises. After the elimination of the sample selection bias and selection of the urban slope as the exogenous instrumental variable, the conclusions remained robust. The results of the mechanism test show...
Source: Environmental Science and Pollution Research International - September 20, 2023 Category: Environmental Health Authors: Haikuo Zhang Yuankun Li Source Type: research
Biodegradability enhancement of waste lubricating oil regeneration wastewater using electrocoagulation pretreatment
Environ Sci Pollut Res Int. 2023 Sep 20. doi: 10.1007/s11356-023-29841-7. Online ahead of print.ABSTRACTAs a sustainable management of fossil fuel resources and ecological environment protection, recycling used lubricating oil has received widespread attention. However, large amounts of waste lubricating-oil regeneration wastewater (WLORW) are inevitably produced in the recycling process, and challenges are faced by traditional biological treatment of WLORW. Thus, this study investigated the effectiveness of electrocoagulation (EC) as pretreatment and its removal mechanism. The electrolysis parameters (current density, ini...
Source: Environmental Science and Pollution Research International - September 20, 2023 Category: Environmental Health Authors: Li-Li Shan Zhao Tan Yu Chen Ruo-Shan Wang Meng Zhang Chang-Long Pang Yu-Hong Cui Zhi-Min Liao Hong-Qiang Ma Ze-Bing Zhu Source Type: research
Nitrogen removal capability and mechanism of a novel heterotrophic nitrifying-aerobic denitrifying strain H1 as a potential candidate in mariculture wastewater treatment
Environ Sci Pollut Res Int. 2023 Sep 20. doi: 10.1007/s11356-023-29666-4. Online ahead of print.ABSTRACTThe nitrogen removal performance and mechanisms of Bacillus subtilis H1 isolated from a mariculture environment were investigated. Strain H1 efficiently removed NH4+-N, NO2--N, and NO3--N in simulated wastewater with removal efficiencies of 85.61%, 90.58%, and 57.82%, respectively. Strain H1 also efficiently degraded mixed nitrogen (NH4+-N mixed with NO2--N and/or NO3--N) and had removal efficiencies ranging from 82.39 to 89.54%. Nitrogen balance analysis revealed that inorganic nitrogen was degraded by heterotrophic nit...
Source: Environmental Science and Pollution Research International - September 20, 2023 Category: Environmental Health Authors: Yumeng Xie Xiangli Tian Yang Liu Kun Zhao Yongmei Li Kai Luo Bo Wang Shuanglin Dong Source Type: research
Dendrobium officinale polysaccharides improved reproductive oxidative stress injury in male mice treated with cyclophosphamide
In this study, the mouse model of reproductive injury was established by intraperitoneal injection of cyclophosphamide (CTX). The reproductive function was evaluated by relative testicular mass, sperm parameters, and sex hormone levels. The oxidative stress level of male mice with reproductive injury treated with DOPs was analyzed by the levels of 8-hydroxydeoxyguanosine (8-OHdG), malondialdehyde (MDA), and nitric oxide (NO) in sperm. The expression of follicle-stimulating hormone receptor (FSHR) mRNA, androgen-binding (ABP) mRNA, and c-kit mRNA was detected by quantitative reverse transcriptase polymerase chain reaction (...
Source: Environmental Science and Pollution Research International - September 20, 2023 Category: Environmental Health Authors: Yi Mu Bangwei Che Kaifa Tang Wenjun Zhang Shenghan Xu Wei Li Jun He Miao Liu Peng Chen Siwen Zhong Guangyu Li Source Type: research
Formation and sedimentation of oil-mineral aggregates in the presence of chemical dispersant
Environ. Sci.: Processes Impacts, 2023, Accepted Manuscript DOI: 10.1039/D3EM00327B, PaperWenxin Li, Zhixin Qi, Deqi Xiong, Yifei Wu, Wei Wang, Yajing Qi, Jian Guo The formation and sedimentation of oil-mineral aggregates (OMA) is the major transport way of the spilled oil to the seafloor. In this paper, the formation and sedimentation experiments of OMA... The content of this RSS Feed (c) The Royal Society of Chemistry
Source: RSC - J. Environ. Monit. latest articles - September 19, 2023 Category: Environmental Health Authors: Wenxin Li Source Type: research
