Article
Environmental Sciences
Li Zhou, Ting Lei, Dongjuan Kang, Yucong Guo, Yunhong Zhang, Fumo Yang, Maofa Ge, Weigang Wang
Summary: Coal-derived fly ash is a major aerosol composition in the atmosphere. The heterogeneous uptake of hydrogen peroxide and sulfur dioxide on coal fly ash was studied, and the effects of temperature and mixing ratio on the uptake coefficients were analyzed. The presence of gaseous H2O2 appeared to enhance the ability of SO2 uptake on coal fly ash.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Geochemistry & Geophysics
Khoren Avetisyan, Irina Zweig, George W. Luther, Alexey Kamyshny Jr
Summary: This study investigated the formation rates of hydrogen sulfide oxidation products by delta-MnO2 under environmentally-relevant conditions, revealing the distribution characteristics of specific sulfur states in the initial stage of polysulfides formation.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2021)
Review
Chemistry, Physical
Songying Qu, Hao Wu, Yun Hau Ng
Summary: Hydrogen peroxide is a crucial chemical attracting attention for energy and environmental applications. The environmentally friendly solar-driven production of hydrogen peroxide, which only requires water, oxygen, and light energy, has gained the most attention. The rational design of functional photo-responsive catalysts promotes hydrogen peroxide production in photo(electro)catalytic approaches. This review systematically summarizes strategies for these catalysts and discusses prevailing hypotheses, state-of-the-art catalysts, critical challenges, and perspectives to enhance comprehension and promote interest in sustainable hydrogen peroxide production.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Analytical
Hong-Cheng Xia, Han Li, Wen-Long Zhang, Ying-Ying Kong
Summary: In this study, benzoindolium probes BI and BBI containing boronic acid pinacol ester group were synthesized, which can distinguish sulfur dioxide (SO2) and hydrogen peroxide (H2O2) by generating different fluorescence signals. They have the advantages of fast response time, high sensitivity, and high selectivity. Furthermore, these probes successfully achieved fluorescence imaging of SO2 and H2O2 in HeLa cells and zebrafish.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Environmental Sciences
Anjali A. Ingle, Shahid Z. Ansari, Diwakar Z. Shende, Kailas L. Wasewar, Aniruddha B. Pandit
Summary: This paper reviews the improvement and application of catalytic hydrogenation in the production of hydrogen peroxide. The study found that supported metal catalysts exhibited better catalytic performance in terms of activity and selectivity.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Physical
Lasse Kattwinkel, Olaf M. Magnussen
Summary: In situ linear optical diffraction is a novel method for studying surface mass transport in electrochemical environments by analyzing the change in diffraction intensity. This study focuses on the decay of diffraction signal for sulfur adsorbates on Pt(111) electrodes in 0.1M H2SO4 and explains the influence of coverage-dependent diffusion rates on the evolution of gratings. The results reveal the presence of high-density, ordered, adlayer phases with low sulfur mobility at high coverage and provide insights into extracting quantitative surface transport rates from linear optical diffraction measurements.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Review
Environmental Sciences
Qingxin Ma, Chunyan Zhang, Chang Liu, Guangzhi He, Peng Zhang, Hao Li, Biwu Chu, Hong He
Summary: The oxidation of sulfur dioxide (SO2) to sulfate in the atmosphere is important but controversial. Heterogeneous oxidation process on particle surfaces is considered an important missing mechanism in current models. This review summarizes the fundamental understanding of the heterogeneous reactions of SO2 on solid particles and discusses the factors affecting these reactions, as well as providing recommendations for future research.
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Spectroscopy
Yang Wang, Ru-Xing Chen, Rui Tian, Yan Li, Zongxia Guo, Ying Fang, Qi Zhang, Shaojin Chen, Kun-Peng Wang, Zhi-Qiang Hu
Summary: The study introduced a long-wavelength fluorescent probe with high selectivity and sensitivity to reversibly monitor sulfur dioxide and hydrogen peroxide in living cells. The probe could accumulate in mitochondria for real-time imaging of SO2/H2O2, making it an ideal tool for monitoring the redox cycle state in living cells.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Environmental Sciences
Tao Wang, Yangyang Liu, Hanyun Cheng, Zhenzhen Wang, Hongbo Fu, Jianmin Chen, Liwu Zhang
Summary: The importance of dust heterogeneous oxidation in the removal of atmospheric SO2 and formation of sulfate aerosols is not well understood. This study investigates the relationship between the chemical composition of dust surface and heterogeneous sulfate formation. Regression models are developed to predict heterogeneous reactivity. Laboratory work combined with modeling study quantitatively assesses gas-phase, aqueous-phase, and heterogeneous oxidation routes. It is found that dust heterogeneous oxidation plays a significant role in sulfate aerosol formation, especially during nighttime.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Applied
Yifan Zhao, Yoshifumi Kondo, Yasutaka Kuwahara, Kohsuke Mori, Hiromi Yamashita
Summary: Researchers have developed a hydrophobic TiO2 material that can catalytically synthesize H2O2 under visible light, which is economically advantageous. Separation of the generated H2O2 from the organic phase improves its stability, and the addition of 2,3-DN enhances visible light absorption and increases H2O2 production.
Article
Agronomy
Zheng Zhang, Zhonghong Wu, Yuyao Yuan, Jiexian Zhang, Jia Wei, Bin Wu
Summary: This study found that SO2 maintains H2O2 homeostasis by activating sulfite reduction and the AsA-GSH cycle, while inhibiting the expression of VvHPCAs, thus alleviating postharvest oxidative damage.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2022)
Article
Engineering, Chemical
Ting Li, Zikai Wang, Zexin Zhang, Kun Feng, Jianru Liang, Dianzhan Wang, Lixiang Zhou
Summary: By modifying Fe3O4/schwertmannite catalyst, the spontaneous generation of H2O2 and Fenton reaction for pollutant degradation in wastewater treatment can be achieved. Carbon modification enhances the selectivity and efficiency of the catalyst, which can also produce H2O2 at a wide range of pH values.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Jing Chen, Qifang Ren, Chunshan Xu, Bin Chen, Shaohua Chen, Yi Ding, Zhen Jin, Wanmi Guo, Xinyu Jia
Summary: In this study, a p-n heterojunction structure composite of Ag2O/BiVO4/diatomite was synthesized using a simple hydrothermal method. The composite exhibited effective degradation of imidacloprid (IMD) under the influence of hydrogen peroxide (H2O2). Various factors, such as pH value, catalyst dosage, H2O2 concentration, initial IMD concentration, and anion, were evaluated to determine the efficiency of the photocatalytic composite in degrading IMD. The results showed that the p-n heterojunction between Ag2O and BiVO4 promoted charge transfer, reduced recombination of electrons and holes, and significantly improved catalytic performance.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Zhuan Chen, Cheng Lian, Kai Huang, Jiahui Ji, Qingyun Yan, Jinlong Zhang, Mingyang Xing
Summary: In this study, a new type of composite catalyst (MoS2-Fe-x) was developed, and the effect of H2O2 feeding way on the Fenton process was investigated. The results showed that supplying H2O2 in small amounts multiple times increased the degradation rate of sulfadiazine and reduced the decomposition side reaction of H2O2.
CHINESE CHEMICAL LETTERS
(2022)
Article
Chemistry, Analytical
Shaohui Han, Hui Zhang, Jingpei Wang, Lei Yang, Minhuan Lan, Benhua Wang, Xiangzhi Song
Summary: By introducing an active triple bond into the molecular structure, sensors with good selectivity for distinguishing and detecting H2S and SO2 can be constructed. These sensors can not only detect the target substances in a dual-ratiometric manner, but also be successfully applied in living cells and zebrafish.
ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Yingqi Wang, Yue Zhao, Ziyue Li, Chenxi Li, Naiqiang Yan, Huayun Xiao
Summary: The presence of isoprene significantly suppresses particle formation from the oxidation of alpha-pinene due to the termination of organic peroxy radicals (RO2) arising from alpha-pinene by those from the OH oxidation of isoprene. The suppression effect is more pronounced in the O-3/OH two-oxidant regime compared to the O-3-only regime. The results suggest that the isoprene suppression effect on particle formation from monoterpenes is strongly dependent on the level of OH in the atmosphere.
ACS EARTH AND SPACE CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Shunyao Wang, Manpreet Takhar, Yue Zhao, Loay Nasser Salim Al Rashdi, Arthur W. H. Chan
Summary: The study reveals that aged cooking emissions contribute to increased oxidative potential and reactive oxygen species in secondary organic aerosol, with unsaturated aldehydes identified as the major contributors to peroxide content in cooking oil aerosol during atmospheric aging.
ACS EARTH AND SPACE CHEMISTRY
(2021)
Article
Engineering, Environmental
Ping Dong, Zhongming Chen, Xuan Qin, Yiwei Gong
Summary: The aqueous-phase oxidation of toluene is significantly influenced by liquid water, leading to different ring-cleavage pathways and product distributions compared to gas-phase oxidation. Water facilitates the formation of bicyclic peroxy radical (BPR) and enhances the production of organic acids through hydrogen-shift reactions. The influence of water on reaction mechanisms suggests that the aqueous-phase oxidation of hydrophobic organic compounds may play a more important role than previously assumed.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Environmental
Min Yao, Ziyue Li, Chenxi Li, Huayun Xiao, Shunyao Wang, Arthur W. H. Chan, Yue Zhao
Summary: Organic peroxides play a crucial role in the formation, evolution, and health impacts of atmospheric aerosols. This study identified a range of peroxide monomers and dimers in secondary organic aerosols formed from the ozonolysis of alpha-pinene. The peroxides undergo rapid chemical transformation in the particle phase, with individual peroxides decomposing on different timescales. The reactivity of the peroxides is influenced by aerosol water content, with a greater impact at lower relative humidity. These findings are important for understanding the fate and impacts of organic peroxides on aerosol chemistry and health effects.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Environmental
Xuan Qin, Zhongming Chen, Yiwei Gong, Ping Dong, Zhijiong Cao, Jingcheng Hu, Jiayun Xu
Summary: This study investigated the kinetics of H2O2 heterogeneous reactions on PM2.5 and found that the uptake of H2O2 by PM2.5 was enhanced by aerosol liquid water and temperature. The positive correlation between the dissolved iron concentration and H2O2 concentration suggests the importance of Fenton catalytic decomposition. The parameterization of H2O2 uptake on PM2.5 was developed and applied in a box model, showing good agreement between simulated and measured H2O2.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Yue Zhao, Ziyu Liu, Min Yao, Shunyao Wang, Ziyue Li, Chenxi Li, Huayun Xiao
Summary: Organic peroxides are important reactive species formed during atmospheric oxidation of organic compounds, and can be distributed into aqueous aerosols and cloud droplets. However, their fate in aerosols and cloud water is not well characterized. This study investigated the aqueous-phase chemical behaviors of a large suite of organic peroxides in dissolved monoterpene secondary organic aerosol (SOA). The results show that the behavior of organic peroxides is complex and dependent on various factors, and differs significantly from previously studied hydroperoxides.
ACS EARTH AND SPACE CHEMISTRY
(2022)
Article
Engineering, Environmental
Yue Zhao, Min Yao, Yingqi Wang, Ziyue Li, Shunyao Wang, Chenxi Li, Huayun Xiao
Summary: This study provides experimental evidence for the important role of acyl organic peroxy radicals (RO2) and stabilized Criegee intermediates (SCIs) in the formation of particle-phase dimers during the ozonolysis of alpha-pinene. It contributes to reducing uncertainties in future atmospheric modeling of secondary organic aerosol (SOA) budget, properties, and health and climate impacts.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Review
Chemistry, Multidisciplinary
Shunyao Wang, Yue Zhao, Arthur W. H. Chan, Min Yao, Zhongming Chen, Jonathan P. D. Abbatt
Summary: Organic peroxides (POs) are important reactive intermediates in atmospheric multiphase processes. They play a key role in the formation, growth, aging, climate, and health impacts of aerosol. This article summarizes the current understanding of atmospheric POs, including their identification, quantification, formation mechanisms, transformation pathways, and environmental and health impacts. The study highlights the need to understand the complex nature and dynamic behavior of POs in order to fully comprehend their origin, fate, and impacts in the atmosphere.
Article
Engineering, Environmental
Min Yao, Yue Zhao, Chongxuan Chang, Shunyao Wang, Ziyue Li, Chenxi Li, Arthur W. H. Chan, Huayun Xiao
Summary: This study investigates the reactions between SO2 and POs in monoterpene-derived secondary organic aerosol. The results show that the reactivity of PO-S(IV) is consistent with pure SOA when the particles are phase-separated, but varies substantially when the organic and inorganic phases are miscible. The measured kinetics suggest that the PO-S(IV) reaction is an important sulfate formation pathway in aerosols, with the reaction kinetics dominated by general acid catalysis.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Environmental Sciences
Jingcheng Hu, Zhongming Chen, Xuan Qin, Ping Dong
Summary: Glyoxal and methylglyoxal are important carbonyl compounds in the atmosphere and their partitioning between the gas and particle phases has a significant impact on secondary organic aerosol (SOA) formation. The irreversible pathway dominates the partitioning process in the real atmosphere, with a proportion of over 90%, while the reversible pathway also plays a substantial role, especially in winter. The partitioning processes of these dicarbonyls in both reversible and irreversible pathways contribute to more than 25% of SOA formation in the real atmosphere.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2022)
Article
Environmental Sciences
Han Zang, Yue Zhao, Juntao Huo, Qianbiao Zhao, Qingyan Fu, Yusen Duan, Jingyuan Shao, Cheng Huang, Jingyu An, Likun Xue, Ziyue Li, Chenxi Li, Huayun Xiao
Summary: This study identifies the major pathways and controlling factors of nitrate aerosol formation during winter haze pollution in the Yangtze River Delta region in eastern China. The results show that both the heterogeneous hydrolysis of N2O5 and the gas-phase oxidation of NO2 contribute significantly to nitrate formation, with atmospheric oxidation capacity and aerosol liquid water content playing key roles. Increased atmospheric oxidation capacity during the COVID-19 lockdown weakened the response of nitrate aerosol to emission reductions. The study highlights the need for synergistic regulation of atmospheric oxidation capacity and NOx emissions to mitigate winter nitrate and haze pollution in eastern China.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2022)
Article
Engineering, Environmental
Yaning Sun, Mei Deng, Wenjun Huang, Yongxian Zhou, Yue Zhao, Jisai Chen, Naiqiang Yan, Zan Qu
Summary: The introduction of bromine enhances the mercury removal efficiency by excess ozone during the NOx removal process, significantly improving the overall mercury removal.
ACS ES&T ENGINEERING
(2021)
Article
Environmental Sciences
Yao Wang, Yue Zhao, Yuchen Wang, Jian-Zhen Yu, Jingyuan Shao, Ping Liu, Wenfei Zhu, Zhen Cheng, Ziyue Li, Naiqiang Yan, Huayun Xiao
Summary: Organosulfates (OSs) are important tracers for secondary organic aerosols (SOAs) and were comprehensively characterized in ambient fine particulate matter (PM2.5) samples collected in Shanghai in 2015-2016 and 2018-2019. The study found that while the concentration of organic aerosols (OAs) decreased in 2018-2019 compared to 2015-2016, the concentrations of quantified OSs remained similar, suggesting an increased contribution of SOAs to OAs in 2018-2019.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2021)
Article
Environmental Sciences
Yiwei Gong, Zhongming Chen
Summary: This study quantitatively investigated the performance of SCIs in SOA formation, revealing that the impact of SCIs on SOA formation is humidity-dependent, with SCI reactions involving water influencing the mechanism of SOA formation. The contribution of SCIs to SOA formation is similar under different humidity conditions.
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)
