Article
Construction & Building Technology
Roberta Orlando, Yilun Gao, Peter Fojan, Jinhan Mo, Alireza Afshari
Summary: The study evaluated the effect of additives on ultrathin electrospun filters, finding that a composite filter showed the highest filtration performance. These filters can efficiently remove particles of different sizes, making them suitable for applications in building environments.
Article
Environmental Sciences
Marina Cerasa, Ettore Guerriero, Catia Balducci, Alessandro Bacaloni, Piero Ciccioli, Silvia Mosca
Summary: Polychlorodibenzo-p-dioxins (PCDDs), polychlorodibenzofurans (PCDFs), and polychlorobiphenyls (PCBs) are semi-volatile compounds that can partition between the gas and particulate phases in the atmosphere. The traditional air sampling method using a quartz fiber filter (QFF) and a polyurethane foam (PUF) cartridge is unable to study the gas-particulate distribution but can provide total quantification. This study validates the performance of an activated carbon fiber (ACF) filter as an alternative method for sampling PCDD/Fs and dl-PCBs, showing comparable accuracy and precision to the traditional method with significant time and cost savings.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Maya E. Morales-McDevitt, Jitka Becanova, Arlene Blum, Thomas A. Bruton, Simon Vojta, Melissa Woodward, Rainer Lohmann
Summary: The study reveals the widespread presence of volatile PFAS, specifically fluorotelomer alcohols, in indoor environments. In Californian kindergarten classrooms, 6:2 FTOH was the dominant species with concentrations ranging from 9 to 600 ng m(-3), followed by 8:2 FTOH. Concentrations of volatile PFAS in air, carpet, and dust were closely related, indicating carpets and dust as major sources of FTOHs in air.
ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
(2021)
Article
Environmental Sciences
Reyson M. Feliciano, Benny Marie B. Ensano, Mark Daniel G. de Luna, Cybelle M. Futalan, Ralf Ruffel M. Abarca, Ming-Chun Lu
Summary: Desulfurization of liquid fuels is essential to reduce the emission of sulfur oxides and particulates during fuel combustion. In this study, the desorption mechanism of sulfur from neutral activated alumina saturated with dibenzothiophene sulfone was investigated, with batch experiments showing that acetone had superior desorption efficiency compared to other eluents. The desorption kinetics followed a pseudo-second-order equation with chemisorption as the rate-determining step, and thermodynamics study revealed the spontaneous and endothermic nature of sulfur desorption using acetone as eluent. Overall, neutral activated alumina was proven to be an efficient and reusable adsorbent for sulfur compound removal from liquid fossil fuels.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Agriculture, Dairy & Animal Science
N. Schlau, D. R. Mertens, K. Taysom, D. Taysom
Summary: The results indicate that filter bags had effects on the measurement of aNDF and aNDFom, and inhibited fermentation for some materials.
JOURNAL OF DAIRY SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Hao Chen, Luhe Li, Lie Wang, Fangyan Li, Jiacheng Wang, Yiding Jiao, Ye Zhang
Summary: Neutral zinc-air batteries have the potential to be wearable energy storage devices due to their high energy density, safety, and low cost. However, the performance of these batteries is negatively affected by the zinc anodes, leading to low capacity, short cycle life, low power density, and poor energy efficiency. To address these issues, a hybrid zinc/carbon nanotube fiber anode with stable structure, high reaction activity, and flexibility has been proposed, resulting in a high-performance neutral zinc-air battery with high specific capacity, power density, and energy efficiency.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Chemistry, Physical
Yali Wang, Ruting Xu, Mingzhe Ma, Kang Sun, Jianchun Jiang, Hao Sun, Shicai Liu, Yanren Jin, Ting Zhao
Summary: By modifying bamboo tar through polymerization, it acts as a new adhesive for preparing bamboo-charcoal-derived molding activated carbon (MBAC). Compared with pristine tar and other adhesives, the aromatization of tar with phenol increases its molecular weight, oxygenic functional groups, and thermal stability, resulting in improved bonding and pyrolytic crosslinking effect between charcoal particles, leading to higher mechanical strength, specific surface area, pore volume, and amount of oxygenic functional groups for MBAC.
Review
Materials Science, Textiles
Roberta Orlando, Alireza Afshari, Peter Fojan
Summary: By incorporating additives such as activated charcoal and titanium dioxide into electrospun fibre membranes, it is possible to remove volatile organic compounds efficiently. The distribution and morphology of the additives on the fibre surface affect the overall performance of the membranes.
JOURNAL OF INDUSTRIAL TEXTILES
(2023)
Article
Environmental Sciences
Xiangpeng Huang, Xinlei Ge, Dan Liu, Lei Tong, Dongyang Nie, Fuzhen Shen, Mengrong Yang, Yangzhou Wu, Hang Xiao, Huan Yu
Summary: Coastal new particle formation (NPF) can be complex due to the influence of both continental and marine air masses. This study investigated NPF events and particle size distributions at a coastal industrial park in eastern China from 2018 to 2019. The highest nucleation-mode particle number concentration and NPF frequency were observed in continental-marine air masses originating from the North China Plain and traveling along the coastline. The formation rates of 2 nm particles at this coastal site were similar to those reported in urban environments worldwide, likely influenced by local industrial emissions. Neutral new particle formation pathway dominated over ion-mediated pathway at this coastal site. The behavior of appearance time-based growth rates was similar for both neutral and charged particles.
ATMOSPHERIC ENVIRONMENT
(2022)
Article
Materials Science, Multidisciplinary
Haiyang Wang, Di Zu, Xinyu Jiang, Yong Xu, Zhiwen Cui, Peng Du, Zekun Cheng, Ziwei Li, Lei Li, Chong Yang, Xiaopeng Bai, Baopu Zhang, Yiqian Zhou, Kuangyu Wang, Bohan Li, Zhenghong Huang, Lihao Zhao, Bo Li, Hui Wu
Summary: A pitch-based activated carbon ultrathin fiber (PACUF) is designed for bifunctional air purification, with high adsorption capacity for VOCs and efficient filtration of PM. Compared to traditional activated carbon fibers, PACUFs have higher adsorption capacity and purification efficiency.
ADVANCED FIBER MATERIALS
(2023)
Article
Environmental Sciences
Yufeng Zhao, Guiping Wu, Wei Wei, Myung-Hee Song, Chul-Woong Cho, Yeoung-Sang Yun
Summary: Activated carbon fiber (ACF) has excellent surface properties and is gaining attention as an adsorbent. However, the adsorption mechanism of ACF for micropollutants, especially in ionic forms, needs further characterization. This study used isotherm experiments and a linear free energy relationship (LFER) to characterize the adsorption property of ACF. A comprehensive model and isolated models for cations, anions, and neutrals were developed based on the adsorption affinities of thirty-five chemicals. The LFER results showed high predictability for anionic and neutral compounds, while cations had slightly lower predictability.
Article
Thermodynamics
Varun Singh, Lukas C. Buelens, Hilde Poelman, Mark Saeys, Guy B. Marin, Vladimir V. Galvita
Summary: A strategy for carbon capture from steel mill gases using a combination of emerging technologies has been proposed, achieving efficient utilization of chemical energy in the steel mill gases and self-sufficiency of electrical power for carbon dioxide compression.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Environmental Sciences
Helong Ren, Xiang Ge, Zenghua Qi, Qinhao Lin, Guofeng Shen, Yingxin Yu, Taicheng An
Summary: The emission and gas-particle partitioning characteristics in various functional areas of flame-retardant production lines were investigated. High levels of PBDEs, NBFRs, and DPs were found in the functional areas, indicating manufacturing activities as the primary emission source. OPFRs were found to be derived from sources other than industrial activities. The gas-particle partitioning behavior of the emitted flame retardants was predicted using three models, and the Li-Jia Empirical Model showed good performance.
ENVIRONMENTAL POLLUTION
(2023)
Article
Engineering, Chemical
S. M. Young, M. Pourmahdavi, A. Hutchison, D. L. Millar
Summary: This study presents a one-dimensional model for evaluating the hydrodynamics and mass transfer in bubbly flow. The model considers the effects of temperature and salinity on mass transfer due to solubility kinetics and psychrometric aspects. The predictions of the model are validated with experimental data and the potential impacts on compressed air production and carbon capture are discussed.
CHEMICAL ENGINEERING SCIENCE
(2022)
Article
Engineering, Chemical
Kasama Sirisomboon, Porametr Arromdee
Summary: The main aim of this study was to investigate gas-solid flow behaviors in a twin cyclonic fluidized-bed combustor in swirling mode. Three different turbulence models were studied to select the most appropriate one for computational simulations. The results showed that the size of bed particles, excess air, and secondary to total air ratio all had significant effects on fluidization behavior in the swirling fluidized bed.
Article
Clinical Neurology
Sviatlana Pankavec, Jerzy Falandysz, Heesoo Eun, Danuta Baralkiewicz, Alwyn R. Fernandes
Summary: In order to provide more acceptable sources of lithium and avoid side effects, some commonly cultivated mushroom species have been successfully lithiated. This study assessed the release and intake of lithium using artificial gastrointestinal juices on lithiated and nonlithiated mushrooms that underwent different culinary processing methods. The results showed that lithium was more bioaccessible from lithiated mushrooms, but losses sustained through processing and limited accessibility during gastrointestinal digestion resulted in lower bioavailability. A 300g meal would provide less than 5% of the lithium required for potential preventative treatments.
Article
Environmental Sciences
Dauren Mussabek, Anna Soderman, Tomomi Imura, Kenneth M. Persson, Kei Nakagawa, Lutz Ahrens, Ronny Berndtsson
Summary: Groundwater contamination caused by the use of AFFF containing PFAS was investigated in southern Sweden. PFAS concentrations ranged from 20 to 20,000 ng L-1, with PFOS and PFHxS being the most prominent compounds. PFAS chain length was found to affect the distribution and transport in groundwater. PFAS-AFFF use during fire-training and equipment tests was identified as a contributor to PFAS contamination, with estimated emission amounts varying based on the number of training sessions per year.
Article
Engineering, Environmental
Linjie Jin, Qi Wang, Meng Yan, Jiarui Gu, Kai Zhang, Paul K. S. Lam, Yuefei Ruan
Summary: This study reported for the first time the tissue-specific uptake and depuration kinetics of two pairs of pharmaceutical enantiomers, S-(-)-metoprolol versus R-(+)-metoprolol and S- (+)-venlafaxine versus R-(-)-venlafaxine, in marine medaka. The results showed a higher bioaccumulation potential of S-venlafaxine compared to R-venlafaxine, while there was no significant difference between S- and R-metoprolol. Furthermore, the main metabolites were identified, and the eyes were found to have the highest tissue-specific bioconcentration factors (BCFs) for all four enantiomers.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Eriko Yamazaki, Heesoo Eun, Sachi Taniyasu, Toshihiro Sakamoto, Nobuyasu Hanari, Hideyuki Inui, Rongben Wu, Huiju Lin, Paul K. S. Lam, Jerzy Falandysz, Nobuyoshi Yamashita
Summary: This study investigated the accumulation of PFAS in rice and found that PFAS exists in atmospheric particles, rainwater, irrigated water, soil, and rice plants. PFAS primarily enter the paddy field through atmospheric particles, and rainfall is a significant source of irrigation water contamination. Although there were no major differences in the residual PFAS trends in different rice varieties, the distribution of PFAS in soil, air, and rainwater varied. These findings are important for the daily exposure assessment of PFAS in rice consumption by different populations.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Qi Wang, Yuefei Ruan, Linjie Jin, Lily S. R. Tao, Han Lai, Guifeng Li, Leo W. Y. Yeung, Kenneth M. Y. Leung, Paul K. S. Lam
Summary: The ban/elimination of legacy PFASs has resulted in an increase in the production and use of emerging PFASs. However, the trophodynamics of these emerging PFASs in aquatic food webs are still not well understood. This study investigated the biomagnification potential of legacy and emerging PFASs in seawaters and marine organisms from the South China Sea. Significant trophic magnification was observed for 22 PFASs, including the first reported trophic magnification factors for certain PFASs. The presence of PFASs in seafood from the South China Sea suggests a potential human health risk.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Qi Wang, Yuefei Ruan, Linjie Jin, Brian C. W. Kot, Kenneth Mei Yee Leung, Paul K. S. Lam
Summary: This study conducted target analysis and suspect screening of halogenated flameretardants (HFRs) and their metabolites in the blubber of stranded finless porpoises and Indo-Pacific humpback dolphins in Hong Kong between 2013 and 2020. The concentrations of tetra-/penta-/hexa-bromodiphenyl ethers (tetra-/penta-/hexa-BDEs) in porpoises and dolphins decreased over time, possibly due to the phasing out of these chemicals in China. Positive correlation was found between the concentrations of tetra-BDE and Me-MeO-tetra-BDE, suggesting the potential metabolism of tetra-BDE as a source of Me-MeO-tetra-BDE in marine mammals.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Environmental Sciences
Jing Li, Baili Sun, Paul K. S. Lam, Lianguo Chen
Summary: This study aimed to explore the interactive mode on the function of liver-gut axis by exposing adult marine medaka to environmentally realistic concentrations of PFBS under normoxia or hypoxia condition. The results showed that hypoxia exposure significantly disturbed lipid metabolism, caused oxidative damage, and induced inflammation in the livers of medaka. The composition of gut microbiota was also drastically shifted by hypoxia acute exposure. PFBS had a milder effect compared to hypoxia, and a time-course recovery from its toxicity was observed.
MARINE POLLUTION BULLETIN
(2023)
Article
Plant Sciences
Yu Takahashi, Hiroaki Sakai, Hirotaka Ariga, Shota Teramoto, Takashi L. Shimada, Heesoo Eun, Chiaki Muto, Ken Naito, Norihiko Tomooka
Summary: To increase food production under global climate change, the concept of de novo domestication by utilizing stress-tolerant wild species as new crops has gained attention. In this study, the candidate gene VsPSAT1 responsible for decreased hard-seededness was identified in a mutant of Vigna stipulacea isi2. The study also revealed the pleiotropic effects of the isi2 mutant, including accelerated leaf senescence, increased seed size, and decreased seed numbers per pod.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Environmental Sciences
Georgios Niarchos, Linnea Georgii, Lutz Ahrens, Dan Berggren Kleja, Fritjof Fagerlund
Summary: This study investigated the competition among different PFAS compounds during sorption to colloidal activated carbon (CAC), and found that competition effects are significant in the sorption process.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Engineering, Environmental
Jia-Yong Lao, Shaopeng Xu, Kai Zhang, Huiju Lin, Yaru Cao, Rongben Wu, Danyang Tao, Yuefei Ruan, Kenneth Mei Yee Leung, Paul K. S. Lam
Summary: This study analyzed the concentrations of organophosphate esters (OPEs) and their transformation products (TPs) in urban stormwater and wastewater in Hong Kong. The results showed that OPEs and TPs have ecological impacts, and TPs may cause endocrine disruption in marine organisms. A novel framework integrating various factors has been proposed to assess and regulate the risks of these emerging contaminants in urban environments.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Yilin Shu, Qi Wang, Pei Hong, Yuefei Ruan, Huiju Lin, Jing Xu, Huijuan Zhang, Shuaitao Deng, Hailong Wu, Lianguo Chen, Kenneth Mei Yee Leung
Summary: This study investigated the tissue-specific bioaccumulation characteristics of PFAS in Chinese toads collected from Chaohu Lake in China. The highest PFAS concentrations were found in the liver of the toads, followed by gonads and intestine. Two emerging PFAS, HFPO-DA and 6:2 H-PFESA, were reported for the first time in amphibians. Males had higher gonad PFAS levels than females, and estradiol levels in gonads increased with certain PFAS concentrations, indicating potential estrogenic effects of PFAS in the toads, especially in males.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Maura Mancinelli, Annalisa Martucci, Lutz Ahrens
Summary: Per- and polyfluoroalkyl substances (PFAS) are gaining attention due to their widespread distribution, persistence, and toxicity. Among the techniques for removing PFAS from water, adsorption treatment techniques, specifically using zeolites and powdered activated carbon, show promising results. This study evaluated the effectiveness of different zeolites and PAC for sorption of 18 PFAS and identified β-type zeolites with SAR=25 and SAR=300, as well as mordenite with SAR=240, as the most promising adsorbent media.
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2023)
Review
Chemistry, Analytical
Qi Wang, Yuefei Ruan, Calista N. T. Yuen, Huiju Lin, Leo W. Y. Yeung, Kenneth M. Y. Leung, Paul K. S. Lam
Summary: This review summarizes the advantages of three target analysis supplementary approaches for tracking PFASs in the aquatic environment and proposes considering more targets and developing comprehensive sample treatment strategies. It also suggests including PFASs screened via HRMS in mass balance analysis.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2023)
