Article
Engineering, Environmental
Daesoon Lee, Junbeom Jang, Jaesung Jang
Summary: Rapid electrochemical measurement of airborne coronaviruses was achieved through condensation-based direct impaction onto carbon nanotube-coated porous paper working electrodes (PWEs). The 3D porous electrode structure of the PWEs enabled sensitive and rapid detection of whole coronaviruses, and water-encapsulated virus particles were directly measured on the PWEs without virus lysis and elution. The whole detection process took about 10 minutes, including air sampling, at virus concentrations of 1.8 and 11.5 PFU/L of air.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Review
Engineering, Environmental
Jyoti Bhardwaj, Seongkyeol Hong, Junbeom Jang, Chang-Ho Han, Jaegil Lee, Jaesung Jang
Summary: This review discusses recent advancements in measuring pathogenic airborne viruses, emphasizing the importance of different methods for virus collection and analysis. Special focus is placed on the effects of air sampling on the sampled viruses.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Hyeong Rae Kim, Sanggwon An, Jungho Hwang
Summary: Efficient and nondestructive collection of airborne virus particles is essential for monitoring airborne viruses, with a high air flow rate required for quick sample collection. The introduction of a high air flowrate electrostatic sampler allows for continuous collection of virus aerosols in liquid, making it suitable for real-time qRT-PCR detection. A 20-minute air sampling period is sufficient for producing a sample suitable for use in a viral epidemic scenario.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Multidisciplinary Sciences
Hongying Li, Fong Yew Leong, George Xu, Chang Wei Kang, Keng Hui Lim, Ban Hock Tan, Chian Min Loo
Summary: The study suggests that larger droplets may have higher viral content and be more infectious. Wearing face masks is recommended to reduce transmission risk, while social distancing is effective at reducing potential transmission. Additionally, the presence of a human body 1 meter away can enhance downstream droplet dispersion, impacting safe distancing in queues.
SCIENTIFIC REPORTS
(2021)
Article
Thermodynamics
Yongcheng Zhao, Kai Luo, Chenrui Shi, Qing Guo, Kan Qin
Summary: This paper studies the direct contact heat transfer characteristics between vapor condensation and noncondensable gases in horizontal tubes. A three-dimensional computational model is proposed and the effects of cross-flow and droplet particles interactions are investigated. The presence of noncondensable gases attenuates the convective heat transfer during the vapor condensation process, resulting in a 34% reduction in condensation rate in the horizontal tubes due to gravity effects. The addition of droplet particles forms a pair of counter-rotating vortex pair (CVP), which leads to non-uniform distribution of droplet particles and increased cross-flow turbulence intensity.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Construction & Building Technology
Lukas Schumann, Julia Lange, Yunus Emre Cetin, Martin Kriegel
Summary: In this study, experimental and numerical investigations were conducted to compare laminar air flow and turbulent mixing ventilation systems in reducing airborne germs and surgical smoke in operating room air. The results showed varying effects in different areas, indicating the importance of monitoring in high hygiene requirement areas.
BUILDING AND ENVIRONMENT
(2023)
Article
Thermodynamics
Khoudor Keniar, Srinivas Garimella
Summary: Mechanistic models for predicting condensation heat transfer in the annular and intermittent flow regimes are presented and compared with experimental data for different working fluids. The study found that the annular model is applicable for low mass fluxes and certain Reynolds numbers, while the intermittent model is applicable for a wider range of mass fluxes and Reynolds numbers.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2021)
Article
Multidisciplinary Sciences
Matthew A. Pendergraft, Derek J. Grimes, Sarah N. Giddings, Falk Feddersen, Charlotte M. Beall, Christopher Lee, Mitchell Santander, Kimberly A. Prather
Summary: Research indicates that coastal water pollution can be transmitted to people through airborne pathways, which needs to be taken into consideration when assessing the full impact of coastal ocean pollution on public health.
Article
Green & Sustainable Science & Technology
Chiara Suanno, Silvia Sandrini, Iris Aloisi, Paola De Nuntiis, Maria Cristina Facchini, Stefano Del Duca, Delia Fernandez-Gonzalez
Summary: This study aims to evaluate pollen, allergen, and protein levels in the air and assess their association with meteorological and chemical parameters. The results show that different sampling devices yield different levels of proteins and allergens, with allergens in coarse particles correlating with pollen, while allergens in fine particles may exist independently of pollen.
Article
Engineering, Environmental
Fulya Okan, Mustafa Odabasi, Baris Yaman, Yetkin Dumanoglu
Summary: A new passive sampling method was developed and characterized to measure atmospheric volatile methyl siloxanes. The precision of the method was very good and uptake of VMS was highly linear. Compared to other methods, this new method has advantages in sampler size, sampling rate, and detection limit.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Environmental
Jyoti Bhardwaj, Nhan Dinh Ngo, Jaegil Lee, Jaesung Jang
Summary: Conventional airborne virus measurement usually takes a long time. In this study, a near real-time enrichment and quantification system for airborne viruses was developed. The system consists of a wet-paper-based electrochemical immunosensor and a modified electrostatic particle concentrator, which allows for efficient enrichment and measurement of airborne viruses. The system can measure virus particle concentrations every 10 minutes for 60 minutes in horizontal and tilted measurement configurations.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Review
Environmental Sciences
Ali Poormohammadi, Saeid Bashirian, Ali Reza Rahmani, Ghasem Azarian, Freshteh Mehri
Summary: A variety of methods have been utilized to reduce microbial load and transmission of acute respiratory diseases in indoor air, with particular focus on the role of portable ventilation systems during the COVID-19 pandemic. This study reviews photocatalysis technologies for inactivating airborne viruses, discussing detection methods and mechanisms involved in virus inactivation. Temperature and humidity play significant roles in these photocatalytic processes for viral inactivation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Thermodynamics
Huiyu Huang, Pengzhan Liu, Qiuxia Ma, Zihao Tang, Mu Wang, Junhui Hu
Summary: In this work, an ultrasonic catalysis method using focused airborne ultrasound (FAU) is demonstrated to enhance the oxygen reduction reaction (ORR) rate and discharge performance of saltwater Al/Mg-air flow batteries. Experimental results show that FAU catalysis can significantly increase the peak power density of the batteries, with a maximum increase of 33.77% for the Mg-air flow battery. Numerical simulation suggests that the enhancement in oxygen diffusion is attributed to the sound pressure and acoustic streaming on the cathode surface. To the best of our knowledge, this is the first attempt to utilize gas-borne ultrasonic catalysis to promote the ORR of metal-air flow batteries.
Article
Environmental Sciences
Zeynab Baboli, Niloofar Neisi, Ali Akbar Babaei, Mehdi Ahmadi, Armin Sorooshian, Yaser Tahmasebi Birgani, Gholamreza Goudarzi
Summary: The research conducted at Razi hospital in Ahvaz, Iran, showed the presence of SARS-CoV-2 bioaerosols in indoor air of the COVID-19 ward. Among the 15 parameters studied, temperature, relative humidity, PM levels, and the presence of an air cleaner showed the highest correlations with PCR results.
ATMOSPHERIC ENVIRONMENT
(2021)
Article
Mechanics
Xufeng Shen, Xin Li
Summary: Viscous flow resistance is dominated by viscous friction between fluid and wall. The flow resistance characteristic curve, represented as the Δp-Q curve, depends on inherent characteristic variables. This paper proposes a new design of variable viscous flow resistance using a rotating slit flow channel to achieve the purpose of changing the Δp-Q curve. Experimental verification shows the significant roles of rotational inertia gradient and viscous gradient terms in governing the radial pressure gradient.
Article
Engineering, Environmental
Shun-Shun Chen, Xu-Xiu Chen, Tian-Yu Yang, Li Chen, Zheng Guo, Xing-Jiu Huang
Summary: A temperature-modulated sensing strategy was proposed to identify and determine BTEX compounds. Highly effective identification of BTEX was achieved using linear discrimination and convolutional neural network analyses. Additionally, quantitative analysis of concentration was accomplished by establishing the relationship between concentration and response.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Myungkyung Noh, Jeong Yeon Sim, Jisung Kim, Jee Hwan Ahn, Hye-Young Min, Jong-Uk Lee, Jong-Sook Park, Ji Yun Jeong, Jae Young Lee, Shin Yup Lee, Hyo-Jong Lee, Choon-Sik Park, Ho-Young Lee
Summary: This study reveals that chronic exposure to PM induces chronic inflammation and development of COPD by dysregulating NAD+ metabolism and subsequent SIRT1 deficiency in pulmonary macrophages. Activation of SIRT1 by resveratrol effectively mitigates PM-induced inflammation and COPD development. Targeting metabolic and epigenetic reprogramming in macrophages induced by PM is a promising strategy for COPD treatment.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yu Liu, Linlin Qin, Yiming Qin, Tong Yang, Haoran Lu, Yulong Liu, Qiqi Zhang, Wenyan Liang
Summary: Co/NC/PAC electrode was prepared by compounding ZIF-67 with powder-activated carbon for the electrocatalytic treatment of nitrogen-containing heterocyclic compounds. The degradation efficiency of the four compounds reached 90.2-93.7% under optimal conditions, and the degradation order was pyridazine < pyrimidine < pyrazine < pyridine.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Julien Couturier, Pierre Tamba Oulare, Blanche Collin, Claire Lallemand, Isabelle Kieffer, Julien Longerey, Perrine Chaurand, Jerome Rose, Daniel Borschneck, Bernard Angeletti, Steven Criquet, Renaud Podor, Hamed Pourkhorsandi, Guilhem Arrachart, Clement Levard
Summary: This study analyzes the properties of bauxite residue samples and explores the influence of bauxite ore origin, storage conditions, and storage time. The results show that the speciation of yttrium is related to the origin of bauxite ore, while no significant variation was observed with storage conditions or aging of the residues.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Sakthinarenderan Saikumar, Ravi Mani, Mirunalini Ganesan, Inbakandan Dhinakarasamy, Thavamani Palanisami, Dharani Gopal
Summary: Microplastic contamination in marine ecosystems poses a growing concern due to its trophic transfer and negative effects on marine organisms. This study investigates the transfer and impacts of polystyrene microplastics in an estuarine food chain. The results show that microplastics can be transferred through the food chain, although the transfer rates are low. The exposed organisms exhibit stress responses, suggesting the potential risk of microplastics reaching humans through the food chain.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Review
Engineering, Environmental
Yan-Jiao Li, Ying Yuan, Wen-Bing Tan, Bei-Dou Xi, Hui Wang, Kun-Long Hui, Jia-Bao Chen, Yi-Fan Zhang, Lian-Feng Wang, Ren-Fei Li
Summary: This review investigated and analyzed the distribution, composition, and abundance of heavy metals and antibiotic resistance genes (ARGs) in landfill. The results showed that heavy metals have lasting effects on ARGs, and complexes of heavy metals and organic matter are common in landfill. This study provides a new basis to better understand the horizontal gene transfer (HGT) of ARGs in landfill.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Jessy Joseph, Ari Vaisanen, Ajay B. Patil, Manu Lahtinen
Summary: Efficient and environmentally friendly porous hybrid adsorbent beads have been developed for the removal of arsenic from drinking water. The structural tuning of the adsorbents has been shown to have a significant impact on their adsorption performance, with high crystallinity leading to increased adsorption capacity and selectivity towards As5+.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yangyang Liu, Minhua Xiao, Kaiqin Huang, Juntao Cui, Hongli Liu, Yingxin Yu, Shengtao Ma, Xihong Liu, Meiqing Lin
Summary: This study measured the levels of phthalate metabolites in breast milk collected from mothers in southern China. The results showed that phthalates are still prevalent in the region, and breastfeeding contributes to phthalate intake in infants. However, the levels detected do not pose significant health risks to infants based on dietary exposure. The increasing exposure to certain phthalates calls for further research into their sources and potential risks.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhiqiang Wu, Jianxing Sun, Liting Xu, Hongbo Zhou, Haina Cheng, Zhu Chen, Yuguang Wang, Jichao Yang
Summary: Ocean depth affects microbial diversity, composition, and co-occurrence patterns of microplastic microbial communities. Deterministic processes dominate the assembly of mesopelagic plastisphere microbial communities, while stochastic processes shape the assembly of bathypelagic microbial communities. The relationships between microorganisms in the mesopelagic layer are more complex and stable, with Proteobacteria and Actinobacteriota playing important roles.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Tingting Xiao, Renjie Chen, Chen Cai, Shijie Yuan, Xiaohu Dai, Bin Dong, Zuxin Xu
Summary: Based on the efficiency of catalytic ozonation techniques in enhancing sludge dewaterability, this study investigated its effectiveness in simultaneous reduction of antibiotics and antibiotic resistance genes. The results showed that catalytic ozonation conditioning changed the distribution of antibiotics and achieved high degradation rates. It also significantly reduced the abundance of ARGs, inhibited horizontal gene transfer, and decreased the signal transduction of typical ARGs host bacteria.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yang Deng, Xiaohong Guan
Summary: This article discusses two different development approaches for ferrate(VI) technology in water treatment, arguing that process integration is a promising method that can drive technological innovation and revolution in water treatment, achieving higher treatment efficiency, reduced costs and energy consumption, and a smaller physical footprint.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhe Zhang, Lu Zhang, Zhihao Huang, Yuxin Xu, Qingqing Zhao, Hongju Wang, Meiqing Shi, Xiangnan Li, Kai Jiang, Dapeng Wu
Summary: In this study, a floating catalytic foam was designed and prepared to enhance the mass transfer in immobilized photocatalysts for wastewater treatment. The floating catalytic foam could float on the water surface and establish a temperature gradient, effectively promoting the diffusion and adsorption of target molecules during the photocatalytic process.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Muhammad Nafees, Adiba Khan Sehrish, Sarah Owdah Alomrani, Linlin Qiu, Aasim Saeed, Shoaib Ahmad, Shafaqat Ali, Hongyan Guo
Summary: The accumulation of cadmium and antibiotics in edible plants and fertile soil is a worldwide problem. This study investigated the potential of zinc oxide nanoparticles to alleviate the toxicity of both cadmium and antibiotics and promote spinach growth.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Lurui Wan, Kai Wang, Yuan Chen, Zhiyong Xu, Wenbo Zhao
Summary: In this study, a low viscosity and high thermal stability SO2 absorbent with dual interacting sites was successfully synthesized. The absorbent showed the highest absorption enthalpy change and entropy change values among reported SO2 absorbents, and exhibited lower viscosity and comparable thermal stability to ILs.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhengwei Zhou, Guojie Ye, Yang Zong, Zhenyu Zhao, Deli Wu
Summary: This study utilized Mo powder and STPP to enhance the performance of the sodium percarbonate system in pollutant degradation. The presence of Mo and STPP resulted in a higher degradation rate of the model pollutant SMX, with low oxidant consumption. The system generated multiple active species through a series of chain reactions at different pH values, exhibiting excellent performance towards electron-rich pollutants. Furthermore, Mo demonstrated excellent stability and reusability.
JOURNAL OF HAZARDOUS MATERIALS
(2024)