Article
Chemistry, Multidisciplinary
Salini Senthil, Sabyasachi Chakraborty, Raghunathan Ramakrishnan
Summary: The study introduces an iterative high-throughput workflow for connectivity-preserving geometry optimization in automated chemical compound space explorations. Utilizing DFT and post-DFT methods, majority of problematic molecules were successfully troubleshooted, unstable molecules were identified, and candidates with ultralong bonds were determined.
Article
Engineering, Environmental
Changkai Zhou, Ke Zhou, Huan Li, Xiang Xu, Baogen Liu, Hailong Li, Zheng Zeng, Weiwu Ma, Liqing Li
Summary: The study explores the application of pressure swing adsorption (PSA) for removing and recycling VOCs, with a focus on nonequilibrium time, effective length, and enrichment ratio. Various experiments were conducted to investigate the mechanism and industrial parameters of PSA, revealing that factors such as kinetic diameter, polarity, pore size, and boiling point influence the efficiency of VOCs removal. Methanol and acetone showed shorter effective lengths for complete removal compared to toluene, and the desorption performance was found to be related to desorption activation energy and the boiling point of the adsorbate. Ultimately, the study found that acetone had the highest recovery ratio among the three VOCs studied, presenting new opportunities for VOCs removal and recovery.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Henry S. Rzepa
Summary: Recent debates about the nature of quadruple bonding in diatomic species C-2 have intensified with suggestions of similar bonding involving carbon and other elements. A recent report on the first chemical synthesis of free C-2 under mild conditions has highlighted the importance of generating such species in order to study their properties. Proposed alternative mechanisms for this reaction involve bimolecular displacement reactions or hydride transfer, providing insights into isotopic substitution patterns and offering a pathway for polymeric synthesis of carbon-rich species.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Environmental Sciences
Shengyong Lu, Xinlei Huang, Minghui Tang, Yaqi Peng, Shuchao Wang, Chengetai Portia Makwarimba
Summary: This study synthesized a series of nitrogen-doped hierarchical porous carbons (NHPCs) with high specific surface area and pore volume. NHPCs showed high adsorption capacity for toluene and the characteristics improved with fluctuations in raw materials and active agents proportions. The micropore size of the material is the main factor affecting the toluene adsorption capacity.
ENVIRONMENTAL POLLUTION
(2021)
Article
Food Science & Technology
Yang Yang, Yun Xu, Shang Wu, Tianyu Qiu, Ivana Blazenovic, Jiadi Sun, Yinzhi Zhang, Xiulan Sun, Jian Ji
Summary: The study found that ozone can effectively oxidize and degrade deoxynivalenol (DON) in saturated aqueous ozone, with a degradation rate of up to 70%. Toxicity analysis showed that the degradation products impacted the viability of A549 cells, but only a small portion of the identified degradation products resulted in reduced toxicity.
Article
Environmental Sciences
Yu Morino, Yasuhiro Sadanaga, Kei Sato, Yosuke Sakamoto, Tatsuya Muraoka, Kosuke Miyatake, Jiaru Li, Yoshizumi Kajii
Summary: Understanding the atmospheric ozone production regime is important for controlling ozone levels. An instrument was developed to directly evaluate ozone production by measuring changes in production rate after injecting nitric oxide and propene into air samples. Smog-chamber experiments and simulations were conducted to study ozone production during oxidation reactions. The measured and simulated ozone production regimes were consistent, suggesting that both methods are useful for estimating ozone production.
ATMOSPHERIC ENVIRONMENT
(2023)
Article
Engineering, Environmental
Zhiang Hou, Xiaoqiang An, Kai Zhu, Qingwen Tang, Huachun Lan, Huijuan Liu, Jiuhui Qu
Summary: This study applies nuclear magnetic resonance (NMR) to investigate the adsorption mechanism of toluene and cetane in carbon materials at the molecular level. The results reveal the adsorption sites of these contaminants in different-sized pores and show that hierarchical porous carbons are the most effective adsorbents for coexisting contaminants.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Armando D. Martinez-Iniesta, Aaron Morelos-Gomez, Morinobu Endo, Juan P. Moran-Lazaro, Emilio Munoz-Sandoval, Florentino Lopez-Urias
Summary: Graphitic spheres were synthesized using the AACVD method, with toluene, ferrocene, and thiophene as precursors. The synthesized carbon material consisted of coalesced graphitic spheres with diameters ranging from 0.1 to 0.8 μm. X-ray diffraction patterns revealed expanded graphitic materials, and a narrow peak was observed in samples collected outside the condenser. Surface functionalization was identified through Raman analysis, and the morphology, surface chemistry, composition, and thermal stability of the graphitic spheres were discussed. Density functional theory study supported the structural stability of functional groups and chemical doping on curved carbon structures.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Thermodynamics
Long Zhu, Qiang Xu, Cheng Xie, Bingzhi Liu, Hong Wang, Snehasish Panigrahy, Henry Curran, Zhandong Wang
Summary: Ozone addition is a promising method to control and enhance combustion and provides a platform to study low-temperature oxidation chemistry. This study investigates ozone-assisted low-temperature oxidation of propane and identifies the initiation of propane reaction by ozone thermal decomposition even at low temperatures. The reactivity of propane shows a maximum at 650 K and decreases in the temperature range of 650 - 740 K. The findings contribute to improving the understanding of the ozone-assisted low-temperature oxidation chemistry of alkanes.
COMBUSTION AND FLAME
(2023)
Article
Chemistry, Multidisciplinary
Chaminda P. Nawarathne, Abdul Hoque, Chethani K. Ruhunage, Connor E. Rahm, Noe T. Alvarez
Summary: This study presents a method for achieving chemical bonding of CNTs to metal substrates at low temperatures, bypassing the need for high temperature treatments, and successfully establishing direct connections between CNTs and metal substrates. By functionalizing metal substrates with organic species and carefully controlling the process, successful chemical bonding between CNTs and metal substrates was achieved, opening up new possibilities for electronic applications.
APPLIED SCIENCES-BASEL
(2021)
Article
Nanoscience & Nanotechnology
Changwei Chen, Mohammadreza Kosari, Chi He, Mudi Ma, Mingjiao Tian, Zeyu Jiang, Reem Albilali
Summary: Efficient mineralization of VOCs in NTP-catalysis systems heavily relies on catalyst design. In this study, a dual-template strategy was applied to synthesize nitrogen-enriched hollow hybrid carbon N-HHC, which showed remarkable plasma synergy effect, superior toluene degradation efficiency, excellent CO2 selectivity, and byproduct inhibition capability. The unique structure and active sites of N-HHC provide insights for designing advanced nanocatalysts for enhanced VOC destruction, with potential applications in environmental protection.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Environmental
Hairong Cheng, Guangzheng Ye, Xiaohong Wang, Chunjing Su, Weixia Zhang, Fan Yao, Yuqin Wang, Yujun Jiao, Haomin Huang, Daiqi Ye
Summary: By coupling Phanerochaete chrysosporium pretreatment with caustic potash etching, templateless micro-mesoporous carbon with high specific surface area was successfully prepared, showing increased adsorption capacity and selectivity for volatile organic compounds.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Organic
Yaxin Wang, Qin He, Zehui Cao, Peng Wang, Gong Chen, Matthias Beller
Summary: This study reports a visible-light-promoted and radical-mediated strategy for the site-specific cleavage of C(sp(3))-C(sp(3)) bonds in ethers. Different cyclic and linear alkyl ethers can be converted into benzoylated acetals and aldehydes or ketones under mild conditions in the presence of Ru(bpy)(3)Cl-2 as a photocatalyst and Zhdankin's lambda(3)-azidoiodane reagent, with moderate to high yields. Control experiments and mechanistic investigations provide a plausible mechanism for this unusual deconstructive esterification of ethers.
ORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Physical
Muyan Wu, Yingguang Zhang, Haibao Huang, Dennis Y. C. Leung
Summary: This study investigates the application of CeO2 nanorods in vacuum ultraviolet (VUV) catalytic oxidation for toluene degradation. The results show that the synergistic effects of ultraviolet photocatalytic oxidation (UV-PCO) and ozone catalytic oxidation (OZCO) play a role in the removal of toluene and COx generation. However, the combination of UV-PCO and OZCO (UV-OZCO) does not improve mineralization. Furthermore, the study reveals the generation of hydroxyl radical (center dot OH) and the inhibition of superoxide radical (center dot O-2(-)) in the UV-OZCO process, leading to lower mineralization level of toluene.
GREEN ENERGY & ENVIRONMENT
(2022)
Article
Environmental Sciences
Caihong Qin, Chaochao Jiang, Mengke Guo, Rongrong Liu, Rui Yu, Jiayu Huang, Dongjie Yan, Shijie Li, Xiaoqing Dang
Summary: In this study, a DBD reactor coupled with a wet scrubber containing metal ions was used for further oxidation of toluene. The results showed that this system not only improved the removal efficiency of toluene, but also significantly reduced ozone emission. The study demonstrated the potential of the DBD coupled WS system as an environmentally friendly technology for gaseous VOCs removal.
Article
Engineering, Environmental
Felipe J. Cardoso-Saldana, Kelly Pierce, Qining Chen, Yosuke Kimura, David T. Allen
Summary: This study introduces a database that allows estimation of hydrocarbon compositions in oil and gas production emissions by querying well parameters. Results show significant variations in emission compositions, especially in the ethane to methane ratio.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Environmental Sciences
Elena C. McDonald-Buller, Gary R. McGaughey, Tejas Shah, John Grant, Yosuke Kimura, Greg Yarwood
Summary: The energy reform in Mexico aimed to increase efficiency, competitiveness, and decarbonization of the electricity sector. Predictions show significant reductions in emissions such as sulfur dioxide, fine particulate matter, carbon dioxide, and nitrogen oxides, with an increase in carbon monoxide. The planning process in Mexico's electricity sector has been dynamic, with insights suggesting that changes in national strategies could impact emissions and air quality outcomes.
ENVIRONMENTAL RESEARCH LETTERS
(2021)
Article
Environmental Sciences
Jin-Ju Lee, Jae-Bum Lee, Okgil Kim, Gookyoung Heo, Hankyung Lee, DaeGyun Lee, Dai-gon Kim, Sang-Deok Lee
Summary: The study assessed the impact of crop residue burning in northeastern China on South Korean PM2.5 concentrations through weather conditions, air quality modeling, and PM2.5 composition data. Results showed a significant influence on air quality and the need to consider this factor for improving air quality and forecasting in South Korea.
Article
Environmental Sciences
William P. L. Carter
Summary: SAR methods are used to estimate rate constants and temperature dependences for the reactions of organic compounds with different radicals in the atmosphere. The estimates can predict the reactions of most single-functional compounds relatively accurately, but the accuracy is lower for multi-functional compounds, and the estimates for NO3 and O-3 reactions are more uncertain.
Article
Environmental Sciences
Elena McDonald-Buller, Gary McGaughey, John Grant, Tejas Shah, Yosuke Kimura, Greg Yarwood
Summary: This study developed a bottom-up emissions inventory for volatile organic compounds, nitrogen oxides, sulfur dioxide, carbon monoxide, and fine particulate matter from upstream and midstream sector sources in Mexican basins. The findings suggest that oil and gas production operations could contribute to ozone and PM2.5 concentrations in Mexican and U.S. states under favorable transport patterns, highlighting the potential implications for emissions and air quality.
Article
Engineering, Environmental
Chenxin Zhang, Yu Song, Hongli Wang, Limin Zeng, Min Hu, Keding Lu, Shaodong Xie, William P. L. Carter
Summary: This study proposes a method to estimate the ozone impacts of VOC emissions by multiplying incremental reactivities based on real airshed conditions with ambient VOC concentrations corrected by kinetic reactivity. Alkenes and aromatics were found to have the highest ozone impacts in the megacity Shanghai and small city Taian. The study suggests that ozone in eastern China could be generally VOC limited based on the significant consistency between R-IR values in the two Chinese cities and U.S. MIR.
ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
(2022)
Article
Meteorology & Atmospheric Sciences
Hyun-Young Jo, Hyo-Jung Lee, Yu-Jin Jo, Gookyoung Heo, Meehye Lee, Joo-Ae Kim, Moon-Soo Park, Taehyoung Lee, Sang-Woo Kim, Yong-Hee Lee, Cheol-Hee Kim
Summary: Heterogeneous hydrolysis of dinitrogen pentoxide (N2O5) plays a crucial role in the formation of aerosol nitrate in urban areas, and can lead to heavy PM2.5 pollution the next day. A study conducted in the Seoul Metropolitan Area revealed that the rapid formation of aerosol nitrate during a winter episode was mainly induced by nighttime N2O5 heterogeneous reaction. The findings suggest the significance of N2O5 chemistry in wintertime nitrate formation and the prediction errors of PM2.5 episodes.
ATMOSPHERIC RESEARCH
(2022)
Article
Environmental Sciences
Daniel Zimmerle, Gerald Duggan, Timothy Vaughn, Clay Bell, Christopher Lute, Kristine Bennett, Yosuke Kimura, Felipe J. Cardoso-Saldana, David T. Allen
Summary: This study introduces a new temporally and spatially resolved inventory emission model (MEET) and applies it to compressor station emissions to investigate the discrepancy between inventory emission estimates and actual measurements. The results suggest that current measurement methods may underestimate uncertainties in emission estimates, while the use of MEET can better capture the temporal and spatial variation in observed emissions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Qining Chen, Mrinali Modi, Gary McGaughey, Yosuke Kimura, Elena McDonald-Buller, David T. Allen
Summary: Simulations of atmospheric dispersion of methane emissions were conducted for oil and gas production sites in the Permian Basin. The study examined the trade-offs between sensor numbers and precision in detecting methane emissions. The results indicated that a fixed monitoring network with one continuous monitor per site can reliably detect site-level methane emissions in the range of 5-10 kg/h.
Article
Environmental Sciences
David T. Allen, Felipe J. Cardoso-Saldana, Yosuke Kimura, Qining Chen, Zhanhong Xiang, Daniel Zimmerle, Clay Bell, Chris Lute, Jerry Duggan, Matthew Harrison
Summary: This study presents a tool for estimating routine emissions from oil and gas well sites at multiple time scales. It emphasizes the importance of developing detailed emission inventories that incorporate operational data when comparing measurements to routine emissions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Ling Huang, Yosuke Kimura, David T. Allen
Summary: This study modeled and analyzed the ozone formation from flaring emissions in the HGB region of Texas, and found that episodic emissions had the greatest impact on ozone formation. An index based on incremental reactivity was developed to assess the ozone formation potential of flaring emissions, and the highest ranking flares in the HGB were further analyzed for their ozone formation potential.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Seokwon Kang, Siyoung Choi, Jihee Ban, Kyunghoon Kim, Rahul Singh, Gyutae Park, Myeong-Bok Kim, Dong-Gil Yu, Joo-Ae Kim, Cheol-Hee Kim, Sang-Woo Kim, Moon-Soo Park, Ceol-Hee Kim, Meehye Lee, Gookyoung Heo, Yu-Woon Jang, Sang-Sub Ha, Taehyun Park, Taehyoung Lee
Summary: Despite the enforcement of air quality standards, Seoul continues to experience episodes of high PM2.5 concentrations. This study found that nitrate was the main factor contributing to the exceedance of the standard limit, while sulfate was associated with industrial complexes in the west. Additionally, atmospheric stagnation and temperature decrease at dawn were found to result in increased nitrate concentrations.
ATMOSPHERIC POLLUTION RESEARCH
(2022)
Article
Engineering, Environmental
Qining Chen, Colette Schissel, Yosuke Kimura, Gary McGaughey, Elena McDonald-Buller, David T. Allen
Summary: Continuous monitoring systems are used to detect methane emissions at oil and gas production sites, but their effectiveness depends on various factors. This study evaluates the effectiveness of continuous sensor networks in detecting different types of emission events using case studies. The results show that the detection of emissions varies depending on the number of sensors deployed and the characteristics of the emission events. The analysis framework presented in this study can be applied in the evaluation of continuous emission monitoring network designs.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Environmental Sciences
Yingnan Zhang, Likun Xue, William P. L. Carter, Chenglei Pei, Tianshu Chen, Jiangshan Mu, Yujun Wang, Qingzhu Zhang, Wenxing Wang
Summary: This study developed incremental reactivity (IR) scales for 116 VOCs in a Chinese megacity, illustrating their application in calculating ozone (O3) formation potential in China. The IR scales showed a strong dependence on the chemical mechanism used, and became more sensitive to environmental conditions when NOx availability decreased. The study provides recommendations for the application of IR scales, emphasizing their significance for VOC control in China and other countries facing severe O3 air pollution.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2021)
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)
