Article
Environmental Sciences
Huanhuan Wang, Peter Brimblecombe, Keith Ngan
Summary: The spatial distribution of pollutant sources has a significant impact on local air quality within streets. The spatial variation of traffic volume is crucial, and the actual impact is influenced by wind direction and urban background concentration. Pedestrianisation may only bring limited benefits, and further research is needed.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Thermodynamics
Tingzhen Ming, Cao Nie, Wenyu Li, Xin Kang, Yongjia Wu, Mengjie Zhang, Chong Peng
Summary: This study investigated the diffusion of reactive pollutants emitted by motor vehicles in a 2-dimensional street canyon by using computational fluid dynamics (CFD) method. The presence of a viaduct was found to change the flow field structure in the street canyon and increase pollutant concentrations. The influence of the viaduct on the concentration of reactive pollutants was significantly larger than that of chemical reactions.
BUILDING SIMULATION
(2022)
Article
Construction & Building Technology
Yiding Zhou, Yuting An, Wenjie Huang, Chun Chen, Ruoyu You
Summary: This study developed a combined deep learning and physical modelling method for efficiently estimating source location and emission profile in street canyons, demonstrating high accuracy in identifying pollution sources and locating them within close proximity to the true location in controlled or real street canyon environments.
BUILDING AND ENVIRONMENT
(2022)
Article
Construction & Building Technology
Jian Hang, Jie Liang, Xuemei Wang, Xuelin Zhang, Luolin Wu, Min Shao
Summary: A new CFD code named APFoam has been developed based on the OpenFOAM environment, which couples turbulence with the complex photochemical mechanism of NOx-O3-VOCs reactions. Two-dimensional full-scale street canyons with two aspect ratios were studied to investigate the influences of three key factors on photochemical pollutant dispersion and human health risk analysis. Effective measures to control O3 concentration were also discussed.
BUILDING AND ENVIRONMENT
(2022)
Article
Construction & Building Technology
Huiru Zhong, Jiaxi Feng, Cho Kwong Charlie Lam, Jian Hang, Jiajia Hua, Zhongli Gu
Summary: This study investigates the integrated influences of semi-open street roofs (SOSRs) on ventilation and pedestrian-level outdoor thermal comfort in 2-D street canyons. The results show that SOSRs have a negative impact on ventilation and increase pedestrian-level outdoor temperature. Therefore, their application should be assessed before implementation.
BUILDING AND ENVIRONMENT
(2023)
Article
Construction & Building Technology
Chao Lin, Ryozo Ooka, Hideki Kikumoto, Cedric Flageul, Youngseob Kim, Yunyi Wang, Alice Maison, Yang Zhang, Karine Sartelet
Summary: This study conducted large-eddy simulations to investigate the pollutant reduction effects of hedge and solid barriers in a three-dimensional idealized street canyon. The results were validated using wind tunnel data. The simulations accurately predicted the distribution of pollutant concentrations and demonstrated that both types of barriers led to reduced concentrations. The hedge and solid barriers created counter-direction vortices that transported pollutants towards the center of the canyon and enhanced vertical pollutant removal. The concentration reductions near the leeward and windward walls and throughout the street canyon were quantified.
BUILDING AND ENVIRONMENT
(2023)
Article
Environmental Sciences
Jian Hang, Xuemei Wang, Jie Liang, Xuelin Zhang, Luolin Wu, Yaxing Du, Yifei Zhang, Riccardo Buccolieri
Summary: This study investigates the impact of urban trees on O3-NOx-VOCs chemistry and pollutant dispersion in street canyons using Computational Fluid Dynamics (CFD). The results show that the aerodynamic effects of trees have a greater impact on photochemical pollutant concentrations than BVOCs emission and dry deposition. Moreover, the study reveals that the emissions from trees, vehicles, and the background contribute to O3 production. Overall, this study provides an effective tool for developing sustainable urban policies.
ATMOSPHERIC ENVIRONMENT
(2023)
Article
Environmental Sciences
Chung Hyok Sin, Yang Luo, Kwang Song Jon, Peng-Yi Cui, Yuan-dong Huang
Summary: This study investigates the effects of void deck height, location, and building height on the airflow field and traffic pollutant diffusion in a long canyon. The results show that void decks have a significant impact on the airflow and pollutant distribution within the canyon. Canyons with void decks have higher air exchange rates and purging flow rates, leading to better removal of traffic pollutants.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Review
Construction & Building Technology
Le Wang, Wenxin Tian, Peilin Zheng
Summary: This paper reviews the impact of trees on airflow and pollutant diffusion in urban street canyons, emphasizing the improvement of wind environment and reduction of pollutant concentration through mechanism exposition and greening measures. A numerical mathematical model for pollutant diffusion and airflow in urban street canyons under tree influence is summarized. The factors influencing wind environment and pollutant distribution in urban street canyons, including tree characteristics, layout, street canyon shape, and thermal conditions, are elaborated and analyzed. Current research progress, deficiencies, and future research directions are discussed.
Article
Construction & Building Technology
Zhengtong Li, Hao Zhang, Yu-Hsuan Juan, Chih-Yung Wen, An-Shik Yang
Summary: This study investigates the effects of horizontal and vertical building setbacks on outdoor thermal comfort and air quality using computational fluid dynamic simulations. It demonstrates that horizontal setbacks are beneficial for low-rise street canyons, improving both thermal comfort and air quality. On the other hand, vertical setbacks are more suitable for high-rise street canyons, creating better outdoor environments.
BUILDING AND ENVIRONMENT
(2022)
Article
Environmental Sciences
Kai -Fa Lu, Zhong-Ren Peng
Summary: This study investigated the impact of viaduct-ground emissions and viaduct-canyon configurations on particle distribution in urban street canyons. The results revealed that particle number concentrations exhibited bimodal distribution patterns, with one peak at ground level and another at the viaduct height. The study also found that optimized viaduct-canyon configurations and ground emissions played significant roles in particle distribution in street canyons. These findings have implications for viaduct design and traffic management to reduce particulate pollution.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Geosciences, Multidisciplinary
Luolin Wu, Jian Hang, Xuemei Wang, Min Shao, Cheng Gong
Summary: This study developed and validated an open-source computational fluid dynamics code (APFoam 1.0) for investigating microscale reactive pollutant formation and dispersion in urban areas. Vehicle emissions were identified as the main source of street air pollution, and reducing vehicle VOC emissions by at least 30% was found to effectively lower O3, NO, and NO2 concentrations.
GEOSCIENTIFIC MODEL DEVELOPMENT
(2021)
Article
Environmental Sciences
Seungyeon Lee, Seon-Young Park, Jae-Jin Kim, Minjoong J. Kim
Summary: The surface heating in complex urban areas affects the concentration of secondary inorganic aerosol (SIA) through flow and chemical environment changes. Previous studies have mainly focused on the effect of dispersion change caused by heating. However, the heating of buildings also affects SIA concentration through chemical environmental changes, such as changes in reaction rate and thermodynamic equilibrium. In this study, we used a coupled chemistry-computational fluid dynamics (CFD) model to investigate the effects of heating, considering both flow changes and chemical environment changes, on SIA. Our findings show that both the chemical and dynamical effects reduce SIA concentration. The effect of heating caused by chemical environment changes is 49.4% larger than that of flow changes, highlighting the importance of considering chemical reactions in aerosol calculations in urban microscale simulations.
Article
Biodiversity Conservation
Katarzyna Zielonko-Jung, Justyna Janiak
Summary: The study aimed to analyze the potential of shading the southern frontage of a street by a single row of trees oriented along the E-W axis. Results showed that 20-25 year old Sycamore Maples located within 4 meters of buildings on a street 30 meters wide and 18 meters high could effectively provide solar protection. However, placing greenery 4-5 meters away led to a significant reduction in shading possibilities, with just 0% of wall surfaces shaded at a distance of 5 meters.
Article
Environmental Sciences
Parisa Ghobadi, Nazanin Nasrollahi
Summary: The study found that the combined effect of wind force and buoyancy enhances air circulation and turbulence in street canyons; pollution source location significantly influences the distribution and concentration of pollutants in the canyon. Pollutants are transported vertically to the windward area by the sunward sides acting as a thermal plume, and the impact of wind force complicates pollution transmission pathways.
Article
Cardiac & Cardiovascular Systems
Friso M. Rijnberg, Seline F. S. van der Woude, Mark G. Hazekamp, Pieter J. van den Boogaard, Hildo J. Lamb, Covadonga Terol Espinosa de Los Monteros, Lucia J. M. Kroft, Sasa Kenjeres, Tawab Karim, Monique R. M. Jongbloed, Jos J. M. Westenberg, Jolanda J. Wentzel, Arno A. W. Roest
Summary: This study evaluates the adequacy of 16-20mm conduits in adolescent Fontan patients and finds that important blood flow accelerations from the inferior vena cava to the conduit are related to peak VO2.
EUROPEAN JOURNAL OF CARDIO-THORACIC SURGERY
(2022)
Article
Thermodynamics
J. Elin Vesper, Sebastian C. Tietjen, Manu Chakkingal, Sasa Kenjeres
Summary: This study investigates the individual and combined effects of conductive horizontal walls and conductive fins on the natural convection of air in side heated cavities. The results show that thermally conductive walls accelerate the transition to turbulence and decrease the boundary layer thickness. Preheating/precooling along the conductive walls reduces the actual heat transfer at the vertical walls. Plumes erupt from the fin in the case of conductive horizontal walls, triggering 3D instabilities in the entire flow field. The presence of a fin increases the integral heat transfer.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Radiology, Nuclear Medicine & Medical Imaging
Jos J. M. Westenberg, Hans C. Assen, Pieter J. den Boogaard, Jelle J. Goeman, Hicham Saaid, Jason Voorneveld, Johan Bosch, Sasa Kenjeres, Tom Claessens, Pankaj Garg, Marc Kouwenhoven, Hildo J. Lamb
Summary: Velocity and flow rates are inaccurate for 4DEPI with EPI factor 5 when flow is parallel to the readout or blip phase-encoding gradient. However, mean differences in flow rate, voxel-based speed, and spatio-temporal median speed were acceptable (<= 10%) when comparing 4DEPI to 4DGRE for intracardiac flow in healthy volunteers.
MAGNETIC RESONANCE IN MEDICINE
(2022)
Article
Cardiac & Cardiovascular Systems
Xiaolin Wu, Stefanie Gurzing, Christiaan Schinkel, Merel Toussaint, Romana Perinajova, Pim van Ooij, Sasa Kenjeres
Summary: This study compared the hemodynamics of a patient-specific intracranial saccular aneurysm using in vivo 4D Flow MRI, in silico CFD, and in vitro Stereo-PIV and Tomo-PIV techniques. Results showed similar flow features and overall WSS distribution, but significant variations in absolute WSS values. Differences in spatial resolution were identified as a main contributor to discrepancies between modalities, cautioning against using absolute WSS values for quantitative risk analysis of aneurysm rupture.
CARDIOVASCULAR ENGINEERING AND TECHNOLOGY
(2022)
Article
Thermodynamics
Artem Blishchik, Ivan Glavinic, Thomas Wondrak, Daniel van Odyck, Sasa Kenjeres
Summary: In this study, numerical simulations were used to analyze the factors influencing turbulent liquid metal flow in a laboratory-scale continuous casting setup. The results showed that the finite electrical conductivity of the Hartmann walls significantly affected the flow and turbulence reorganization. These insights are important for the development of the new generation of laboratory and real-scale continuous casting setups.
INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW
(2022)
Article
Physics, Applied
K. van As, S. F. L. J. Dellevoet, J. Boterman, C. R. Kleijn, N. Bhattacharya, S. Kenjeres
Summary: The goal of this research is to detect arterial stenosis in a non-invasive manner using laser speckle contrast imaging (LSCI). The study finds that the frequency spectrum of speckle contrast is notably different in the region surrounding the stenosis, with prominent higher-order frequency modes. The research provides a first insight into how stenosis can be detected in vivo using LSCI, although further work is required to make the approach more quantitative and applicable in practice.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Mechanics
Artem Blishchik, Sasa Kenjeres
Summary: In this study, numerical simulations were conducted to analyze the turbulent magnetohydrodynamic flow in a square duct with electrically conductive walls subjected to a transverse magnetic field. The results showed that the conductivity of the surrounding walls had a significant impact on the flow and turbulence reorganization, leading to turbulence suppression and regeneration.
Article
Chemistry, Analytical
Ivan Glavinic, Imamul Muttakin, Shereen Abouelazayem, Artem Blishchik, Frank Stefani, Sven Eckert, Manuchehr Soleimani, Iheb Saidani, Jaroslav Hlava, Sasa Kenjeres, Thomas Wondrak
Summary: Continuous casting is a major method for steel production worldwide. The flow condition in the mould during initial solidification significantly affects the quality of steel products. This study introduces a new concept of using contactless inductive flow tomography as a sensor for a novel controller to regulate the flow. The controller adjusts the strength of an electromagnetic brake based on the reconstructed flow structure in the mould.
Article
Thermodynamics
E. Cascioli, S. Keijers, K. Van Tichelen, J. E. Vesper, S. Kenjeres
Summary: In this study, a combined dynamic large-eddy simulation (LES) and direct numerical simulation (DNS) approach was applied to analyze the flow and heat transfer characteristics of a three-dimensional planar jet in a turbulent forced convection regime. The results were compared with Reynolds Averaged Navier-Stokes (RANS) simulations and experimental data. Detailed insights into the behavior of velocity and temperature fields for four different characteristic Prandtl numbers were provided, with a focus on low-Prandtl working fluids for advanced RANS-type turbulence models development and validation.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Engineering, Mechanical
Qian Jiang, Feng Ren, Chenglei Wang, Zhaokun Wang, Gholamreza Kefayati, Sasa Kenjeres, Kambiz Vafai, Yang Liu, Hui Tang
Summary: In this study, a computational framework combining the lattice-Boltzmann method (LBM) and the particle-swarm optimization (PSO) algorithm was developed to find optimal strategies for magnetic nanoparticle (MNP) injection in hyperthermia-based cancer treatment. The results showed that multi-site injection strategies performed better than single-site injection strategies, and the more injection sites, the better the performance. The assessment of thermal dose considering both temperature and heat exposure time also indicated that the optimal multi-site injection strategies worked well for both tumor models.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Multidisciplinary Sciences
Romana Perinajova, Pim van Ooij, Sasa Kenjeres
Summary: A combination of MRI and CFD can be used to study blood flow and oxygen transport in the cerebral vasculature. Neglecting haemoglobin transport underestimates arterial wall oxygen transfer. Hypoxic regions along the arterial walls can be identified using critical thresholds obtained from comparing Damkohler number and Sherwood number. Further validations of the MRI/CFD approach in larger groups of brain vasculature systems are recommended.
ROYAL SOCIETY OPEN SCIENCE
(2023)
Article
Engineering, Electrical & Electronic
J. Elin Vesper, Sasa Kenjeres, Chris R. Kleijn
Summary: This study proposes the use of a light inert carrier gas to improve deposition uniformity and rate in continuous physical vapor deposition. The effect of adding a carrier gas on interaction shocks is evaluated. The study shows that species separation caused by interaction shocks can result in nonuniform coatings, and this phenomenon intensifies with higher degrees of rarefaction.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B
(2022)
Article
Biology
Romana Perinajova, Concepcion Borras Alvarez-Cuevas, Joe Juffermans, Jos Westenberg, Hildo Lamb, Sasa Kenjeres
Summary: There is an urgent need to establish new biomarkers for predicting the development of thoracic aortic aneurysm. In addition to hemodynamics, the roles of oxygen and nitric oxide in the pathogenesis of thoracic aortic aneurysm are potentially significant. The relationship between aneurysm presence and species distribution in both the lumen and aortic wall needs to be understood. Computational fluid dynamics can be used to explore this relationship.
COMPUTERS IN BIOLOGY AND MEDICINE
(2023)
Article
Cardiac & Cardiovascular Systems
Xiaolin Wu, Hicham Saaid, Jason Voorneveld, Tom Claessens, Jos J. M. Westenberg, Nico de Jong, Johan G. Bosch, Sasa Kenjeres
Summary: This study applied the Shake-the-Box method to reconstruct flow dynamics in a realistic left ventricle silicon model with biological valves. The velocity measurements were used to calculate the 4D pressure field, and flow analysis was performed using proper orthogonal decomposition (POD) of the velocity field.
CARDIOVASCULAR ENGINEERING AND TECHNOLOGY
(2023)
Article
Cardiac & Cardiovascular Systems
Friso M. Rijnberg, Luca C. van't Hul, Mark G. Hazekamp, Pieter J. van den Boogaard, Joe F. Juffermans, Hildo J. Lamb, Covadonga Terol Espinosa de Los Monteros, Lucia J. M. Kroft, Sasa Kenjeres, Saskia le Cessie, Monique R. M. Jongbloed, Jos J. M. Westenberg, Arno A. W. Roest, Jolanda J. Wentzel
Summary: This study investigated the relationship between conduit size and haemodynamics in adolescent Fontan patients. The results showed that most patients had relatively undersized conduits, leading to suboptimal haemodynamics.
EUROPEAN JOURNAL OF CARDIO-THORACIC SURGERY
(2022)
Article
Environmental Sciences
Muhammad Waqas, Majid Nazeer, Man Sing Wong, Wu Shaolin, Li Hon, Joon Heo
Summary: The socio-economic restriction measures implemented in the United States have significantly reduced nitrogen dioxide (NO2) emissions. The study highlights the impact of factors such as human mobility, population density, income, climate, and stationary sources on the reduction of NO2 at different stations. The research emphasizes the scientific impacts of the NO2 reduction and income inequality revealed by the pandemic on air quality and health disparities.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Guorui Zhi, Jinhong Du, Aizhong Chen, Wenjing Jin, Na Ying, Zhihui Huang, Peng Xu, Di Wang, Jinghua Ma, Yuzhe Zhang, Jiabao Qu, Hao Zhang, Li Yang, Zhanyun Ma, Yanjun Ren, Hongyan Dang, Jianglong Cui, Pengchuan Lin, Zhuoshi He, Jinmin Zhao, Shuo Qi, Weiqi Zhang, Wenjuan Zhao, Yingxin Li, Qian Liu, Chen Zhao, Yi Tang, Peng Wei, Jingxu Wang, Zhen Song, Yao Kong, Xiangzhe Zhu, Yi Shen, Tianning Zhang, Yangxi Chu, Xinmin Zhang, Jiafeng Fu, Qingxian Gao, Jingnan Hu, Zhigang Xue
Summary: An comprehensive emission inventory for China in 2019, which includes both air pollutants and greenhouse gases, was developed in this study. The inventory utilizes existing frameworks and data to provide comparable emissions data and demonstrates the relationship between emissions and economic development.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
I-Ting Ku, Yong Zhou, Arsineh Hecobian, Katherine Benedict, Brent Buck, Emily Lachenmayer, Bryan Terry, Morgan Frazier, Jie Zhang, Da Pan, Lena Low, Amy Sullivan, Jeffrey L. Collett Jr
Summary: Unconventional oil and natural gas development (UOGD) in the United States has expanded rapidly in recent decades, raising concerns about its impact on air quality. This study conducted extensive air monitoring during the development of several large well pads in Broomfield, Colorado, providing a unique opportunity to examine changes in local air toxics and VOC concentrations during well drilling and completions and production. The study identified significant increases in VOC concentrations during drilling operations, highlighting the importance of emissions from synthetic drilling mud. The findings suggest opportunities to mitigate emissions during UOGD operations.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Puji Lestari, Akbar R. Tasrifani, Wiranda I. Suri, Martin J. Wooster, Mark J. Grosvenor, Yusuke Fujii, Vissia Ardiyani, Elisa Carboni, Gareth Thomas
Summary: This study developed field emission factors for various pollutants in peatland fires and estimated the total emissions. Gas samples were collected using an analyzer, while particulate samples were collected using air samplers. The study found significant emissions of CO2, CO, PM2.5, carbon aerosols, water-soluble ions, and elements from the fires in Central Kalimantan, Indonesia in 2019.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Ligang Li, Yuyu Chen, Lu Fan, Dong Sun, Hu He, Yongshou Dai, Yong Wan, Fangfang Chen
Summary: A high-precision retrieval method based on a deep convolutional neural network and satellite remote sensing data is proposed to obtain accurate methane vertical profiles.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Hyung Joo Lee, Toshihiro Kuwayama, Michael Fitzgibbon
Summary: This study investigated the changes in nitrogen dioxide (NO2) air pollution levels and their disparities in California, U.S. during the pandemic of coronavirus disease 2019 (COVID-19). The results showed a decrease in NO2 concentrations, especially in urban and high-traffic areas. However, socially vulnerable populations still experienced higher levels of NO2 exposure. The study suggests that reducing NO2 disparities, particularly racial inequity, can be achieved through continued regulatory actions targeting traffic-related NOx emissions.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Maria Chiara Pietrogrande, Beatrice Biffi, Cristina Colombi, Eleonora Cuccia, Umberto Dal Santo, Luisa Romanato
Summary: This study investigates the chemical composition and oxidative potential of PM10 particles in the Po Valley, Italy, and demonstrates the impact of high levels of atmosphere ammonia. The rural area had significantly higher ammonia concentrations compared to the urban site, resulting in higher levels of secondary inorganic aerosol. Although the SIA components did not contribute significantly to the PM10 oxidative reactivity, they were correlated with the oxidative potential measurements. This suggests that the contribution of SIA to PM oxidative toxicity cannot be ignored.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Natalie Allen, Jan Gacnik, Sarrah M. Dunham-Cheatham, Mae Sexauer Gustin
Summary: Accurate measurement of atmospheric reactive mercury is challenging due to its reactivity and low concentrations. The University of Nevada, Reno Reactive Mercury Active System (RMAS) has been shown to be more accurate than the industry standard, but has limitations including long time resolution and sampling biases. Increasing the sampling flow rate negatively affected RM concentrations, but did not impact the chemical composition of RM captured on membranes.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Chin-Yu Hsu, Wei-Ting Hsu, Ching-Yi Mou, Pei-Yi Wong, Chih-Da Wu, Yu-Cheng Chen
Summary: This study estimated the daily exposure concentrations of PM2.5 for elderly individuals residing in different regions of Taiwan using land use regression with machine learning (LUR_ML) and microenvironmental exposure (ME) models. The accuracy of the models varied across regions, with the ME models exhibiting higher predictions and lower biases. The use of region-specific microenvironmental measurements in the ME model showed potential for accurate prediction of personal PM2.5 exposure.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Xiaohan Si, Kerrie Mengersen, Chuchu Ye, Wenbiao Hu
Summary: This study found that there is an interactive effect between air pollutants and weather factors, which significantly affects influenza transmission. Future research should consider the interactive effects between pollutants and temperature or humidity to evaluate the environment-influenza association.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Luxi Xu, Ruijun Xu, Yunshao Ye, Rui Wang, Jing Wei, Chunxiang Shi, Qiaoxuan Lin, Ziquan Lv, Suli Huang, Qi Tian, Yuewei Liu
Summary: This study aimed to evaluate the impact of ambient air pollution on hospital admissions for angina. The results showed that exposure to ambient particulate matter, sulfur dioxide, nitrogen dioxide, carbon monoxide, and ozone are associated with an increased risk of hospital admissions for angina. The association with nitrogen dioxide exposure was found to be the strongest.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Xinyu Yu, Man Sing Wong, Majid Nazeer, Zhengqiang Li, Coco Yin Tung Kwok
Summary: This study proposes a novel method to address the challenge of missing values in satellite-derived AOD products and creates a comprehensive daily AOD dataset for the Guangdong-Hong Kong-Macao Greater Bay Area. By reconstructing missing values and developing a new model, the derived dataset outperforms existing products and agrees well with ground-based observations. Additionally, the dataset exhibits consistent temporal patterns and more spatial details.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Yidan Zhang, Yifan Xu, Bo Peng, Wu Chen, Xiaoyu Cui, Tianle Zhang, Xi Chen, Yuan Yao, Mingjin Wang, Junyi Liu, Mei Zheng, Tong Zhu
Summary: This study developed a sensitive method to measure the metallic components of atmospheric fine particulate matter (PM2.5) and compared the results with different analysis methods. The concentrations of metallic components in personal PM2.5 samples were found to be significantly different from corresponding fixed-site samples. Personal sampling can reduce exposure misclassifications, and measuring metallic components is useful for exploring health risks and identifying sources of PM2.5.
ATMOSPHERIC ENVIRONMENT
(2024)
Review
Environmental Sciences
Jamie Leonard, Lea Ann El Rassi, Mona Abdul Samad, Samantha Prehn, Sanjay K. Mohanty
Summary: Increasing concentrations of microplastics in the Earth's atmosphere could have adverse effects on ecosystems and human health. The deposition rate of airborne microplastics is influenced by both land use and climate, and a global analysis suggests that climate may have a greater impact on the concentration and deposition rate of microplastics than land use.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Tian Zhou, Xiaowen Zhou, Zining Yang, Carmen Cordoba-Jabonero, Yufei Wang, Zhongwei Huang, Pengbo Da, Qiju Luo, Zhijuan Zhang, Jinsen Shi, Jianrong Bi, Hocine Alikhodja
Summary: This study investigated the long-range transport and effects of North African and Middle Eastern dust in East Asia using lidar observations and model simulations. The results showed that the dust originated from multiple sources and had a long transport time. The vertical distribution of the dust was found to be crucial for assessing its impacts.
ATMOSPHERIC ENVIRONMENT
(2024)