Article
Geosciences, Multidisciplinary
A. Chatain, A. Spiga, D. Banfield, F. Forget, N. Murdoch
Summary: The InSight mission has provided valuable data on Mars' active atmospheric turbulence, including daytime vortices, nighttime vortices, and intense nighttime local turbulence during the dusty season. Local turbulence, sensitive to ambient wind, contrasts with non-local turbulence and is influenced by a combination of factors during the night.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Meteorology & Atmospheric Sciences
Ping Zhao, Yilin Li, Chunhui Jia, Junhui Che
Summary: This study investigates the impact of the changes in planetary boundary layer (PBL) depth on atmospheric circulations between South Asia and the Tibetan Plateau (TP). The results show that an increase in PBL depth can lead to the development of low-pressure anomalies in the TP and high-pressure anomalies in South Asia, creating an anticlockwise meridional-vertical circulation anomaly. This circulation anomaly enhances the transport of water vapor from South Asia to the TP, resulting in convective precipitation in the TP.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2023)
Article
Meteorology & Atmospheric Sciences
Liming Zhou, Yuhong Tian, Nan Wei, Shu-Peng Ho, Jing Li
Summary: Turbulent mixing in the planetary boundary layer plays a critical role in the vertical exchange of heat, moisture, momentum, trace gases, and aerosols. This study examines the spatial patterns of long-term PBLH trends over land and finds consensus on increasing PBLH over the Sahara Desert and Arabian Peninsula and declining PBLH in India. The changes in PBLH are significantly correlated with changes in surface heating and moisture at the global scale.
JOURNAL OF CLIMATE
(2021)
Article
Engineering, Aerospace
Lars Witte, Gabriele Arnold, Jan Bertram, Matthias Grott, Caroline Kraemer, Andreas Lorek, Torben Wippermann
Summary: The measurement of Martian atmosphere is a high priority investigation for future Mars exploration. Using balloon-borne instruments can provide higher temporal and spatial resolution compared to other observation methods. This study proposes the concept of launching a balloon from the surface of Mars, taking advantage of technological advancements in micro-electronics and sensor miniaturization. The paper presents the feasibility assessment, scientific and operational concept, sensor suite, system components, and size and budget estimates. It also proposes an analysis scheme to assess and mitigate deployment risks.
Article
Astronomy & Astrophysics
Feng Ding, Lena Iredell, Michael Theobald, Jennifer Wei, David Meyer
Summary: The study highlights the importance of PBL height (PBLH) in climate models and forecasts. The NASA Goddard Earth Sciences Data and Information Services Center (GES DISC) offers various products with different PBLH specifications for the research community. An intercomparison over 10 years shows differences in PBLH definitions and values among the products.
EARTH AND SPACE SCIENCE
(2021)
Article
Environmental Sciences
Miguel Gonzalez-Pleiter, Carlos Edo, Angeles Aguilera, Daniel Viudez-Moreiras, Gerardo Pulido-Reyes, Elena Gonzalez-Toril, Susana Osuna, Graciela De Diego-Castilla, Francisco Leganes, Francisca Fernandez-Pinas, Roberto Rosal
Summary: This study investigated the presence and characteristics of microplastics (MPs) in the atmosphere using aircraft sampling campaigns, revealing the presence of MPs in different regions and concentrations with potential long-range transport capabilities.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Agronomy
G. Aaron Alexander, Heather A. Holmes, Xia Sun, Dani Caputi, Ian C. Faloona, Holly J. Oldroyd
Summary: This study evaluates the impact of different land surface models and planetary boundary layer schemes on the simulation performance in semi-arid regions using the WRF model. The results show that the land surface model plays a crucial role in driving the differences between simulations, while the planetary boundary layer scheme has minor influence.
AGRICULTURAL AND FOREST METEOROLOGY
(2022)
Article
Environmental Sciences
Ting-Yu Chiang, Wei-Nai Chen, Charles C. -K. Chou, Shih-Yu Chang, Tzu-Shuan Wu
Summary: Variations in the height of the boundary layer have a critical impact on the vertical transport of near-surface aerosols, affecting their interactions with clouds, solar radiation, and regional climate. This study analyzed air pollution and meteorological factors in an urban area and its peripheral mountainous region, exploring the differences in aerosol characteristics and transport mechanisms. The findings provide a theoretical basis for future air pollution prevention and regional climate research.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Geosciences, Multidisciplinary
Xin Li, Zhaoxia Pu
Summary: The study found a linear relationship between the maximum intensity of large eddies and the square of mean horizontal divergence, and using this relationship in the PBL parameterization scheme can improve the accuracy of hurricane forecasts.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Environmental Sciences
Rene Parra, Claudia Saud, Claudia Espinoza
Summary: PM2.5 particulate matter poses a health risk. In Ecuadorian cities, burning puppets and fireworks on New Year's Eve releases high levels of PM2.5. Measurements in Cuenca showed concentrations exceeding the World Health Organization guideline. Using a simulation model, researchers found that advancing the burning time can help reduce the health effects of PM2.5 emissions on December 31.
Article
Environmental Sciences
Zhen Yuan, Cheng-Lei Pei, Heng-Xiang Li, Lang Lin, Rui Hou, Shan Liu, Kai Zhang, Ming -Gang Cai, Xiang-Rong Xu
Summary: This study conducted field observations at the Canton Tower in Guangzhou, China to investigate the vertical distribution of atmospheric microplastics (AMPs). It found that the distribution of AMPs followed similar layer patterns as other air pollutants, but with different concentrations. The majority of AMPs consisted of polyethylene terephthalate and rayon fibers, and their abundance decreased with increasing altitude due to atmospheric thermodynamics and wind speed. This study provided valuable data for understanding the environmental fate of AMPs.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Luke Colberg, Owen Cruikshank, Kevin S. Repasky
Summary: The planetary boundary layer height (PBLH) is an important parameter for weather forecasting and climate modeling. This study presents a retrieval algorithm based on Haar wavelet transform (HWT) to determine the PBLH using lidar measurements of aerosol layers. The retrieved PBLH is compared with the PBLH determined from radiosonde measurements, showing good agreement between the two methods.
JOURNAL OF APPLIED REMOTE SENSING
(2022)
Article
Geochemistry & Geophysics
A. Munguira, R. Hueso, A. Sanchez-Lavega, M. de la Torre-juarez, G. M. Martinez, C. E. Newman, E. Sebastian, A. Lepinette, A. Vicente-Retortillo, B. Chide, M. T. Lemmon, T. Bertrand, R. D. Lorenz, D. Banfield, J. Gomez-Elvira, J. Martin-Soler, S. Navarro, J. Pla-Garcia, J. A. Rodriguez-Manfredi, J. Romeral, M. D. Smith, J. Torres
Summary: The Mars Environmental Dynamics Analyzer instrument on Mars 2020 records temperature changes in Jezero, showing convective regime during the daytime and stable atmosphere at night with peak temperature fluctuations of 2.5K. The thermal inertia of the terrain affects surface temperatures and breaks the nighttime thermal inversion over terrains with high thermal inertia. Possible detections of thermal tides and atmospheric waves in near-surface temperatures are investigated, and the response of the surface and atmosphere during a regional dust storm is analyzed.
JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS
(2023)
Article
Optics
Zhao-Cheng Zeng, Olivia Addington, Thomas Pongetti, Robert L. Herman, Keeyoon Sung, Sally Newman, Andreas Schneider, Tobias Borsdorff, Yuk L. Yung, Stanley P. Sander
Summary: Atmospheric isotopologues of water vapor, such as HDO, play a crucial role in understanding Earth's hydrological cycles. However, current measurements lack data targeting the planetary boundary layer. In this study, HDO and H2O column data were retrieved from CLARS-FTS observations over the Los Angeles basin, and the isotopological abundance delta(D) was calculated. The results show good agreement between CLARS-FTS measurements and other observations, providing high spatial and temporal resolution datasets for further study of hydrological processes in the LA megacity.
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
(2022)
Article
Environmental Sciences
Yunyan Jiang, Jinyuan Xin, Ying Wang, Guiqian Tang, Yuxin Zhao, Danjie Jia, Dandan Zhao, Meng Wang, Lindong Dai, Lili Wang, Tianxue Wen, Fangkun Wu
Summary: The study revealed significant impacts of synoptic and regional circulations on the PBL structure and air quality, showing that synoptic circulations led to different PBL structures and pollution patterns, while regional breezes played a role in pushing pollution zones to specific locations.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2021)
Article
Meteorology & Atmospheric Sciences
M. Wendisch, M. Brueckner, S. Crewell, A. Ehrlich, J. Notholt, C. Luepkes, A. Macke, J. P. Burrows, A. Rinke, J. Quaas, M. Maturilli, V. Schemann, M. D. Shupe, E. F. Akansu, C. Barrientos-Velasco, K. Baerfuss, A-M Blechschmidt, K. Block, I. Bougoudis, H. Bozem, C. Boeckmann, A. Bracher, H. Bresson, L. Bretschneider, M. Buschmann, D. G. Chechin, J. Chylik, S. Dahlke, H. Deneke, K. Dethloff, T. Donth, W. Dorn, R. Dupuy, K. Ebell, U. Egerer, R. Engelmann, O. Eppers, R. Gerdes, R. Gierens, I. V. Gorodetskaya, M. Gottschalk, H. Griesche, V. M. Gryanik, D. Handorf, B. Harm-Altstaedter, J. Hartmann, M. Hartmann, B. Heinold, A. Herber, H. Herrmann, G. Heygster, I. Hoeschel, Z. Hofmann, J. Hoelemann, A. Huenerbein, S. Jafariserajehlou, E. Jaekel, C. Jacobi, M. Janout, F. Jansen, O. Jourdan, Z. Juranyi, H. Kalesse-Los, T. Kanzow, R. Kaethner, L. L. Kliesch, M. Klingebiel, E. M. Knudsen, T. Kovacs, W. Koertke, D. Krampe, J. Kretzschmar, D. Kreyling, B. Kulla, D. Kunkel, A. Lampert, M. Lauer, L. Lelli, A. von Lerber, O. Linke, U. Loehnert, M. Lonardi, S. N. Losa, M. Losch, M. Maahn, M. Mech, L. Mei, S. Mertes, E. Metzner, D. Mewes, J. Michaelis, G. Mioche, M. Moser, K. Nakoudi, R. Neggers, R. Neuber, T. Nomokonova, J. Oelker, I. Papakonstantinou-Presvelou, F. Paetzold, V. Pefanis, C. Pohl, M. van Pinxteren, A. Radovan, M. Rhein, M. Rex, A. Richter, N. Risse, C. Ritter, P. Rostosky, V. V. Rozanov, E. Ruiz Donoso, P. Saavedra Garfias, M. Salzmann, J. Schacht, M. Schaefer, J. Schneider, N. Schnierstein, P. Seifert, S. Seo, H. Siebert, M. A. Soppa, G. Spreen, I. S. Stachlewska, J. Stapf, F. Stratmann, I. Tegen, C. Viceto, C. Voigt, M. Vountas, A. Walbroel, M. Walter, B. Wehner, H. Wex, S. Willmes, M. Zanatta, S. Zeppenfeld
Summary: The (AC)(3) project, established in 2016, collected a wealth of data on the physical, chemical, and meteorological properties of the Arctic atmosphere, cryosphere, and upper ocean. Short-term changes and long-term trends in Arctic climate parameters have been identified, such as increased atmospheric moistening, regional storm activities, winter warming in specific regions, and decreasing sea ice thickness and snow depth on sea ice. The project also made advancements in atmospheric-ocean and radiative transfer models, and discovered local marine/biogenic sources for cloud condensation nuclei and ice nucleating particles. Cross-cutting activities are being developed to further synthesize the results and answer key questions.
BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY
(2023)
Article
Environmental Sciences
Jingchuan Chen, Zhijun Wu, Xiangxinyue Meng, Cuiqi Zhang, Jie Chen, Yanting Qiu, Li Chen, Xin Fang, Yuanyuan Wang, Yinxiao Zhang, Shiyi Chen, Jian Gao, Weijun Li, Min Hu
Summary: This study investigated the ice nucleation properties of Asian dust and found that anthropogenic pollution does not significantly change the ice nucleation activity (INA) of Asian dust.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Review
Geography, Physical
Adeyemi Adebiyi, Jasper F. Kok, Benjamin J. Murray, Claire L. Ryder, Jan-Berend W. Stuut, Ralph A. Kahn, Peter Knippertz, Paola Formenti, Natalie M. Mahowald, Carlos Perez Garcia-Pando, Martina Klose, Albert Ansmann, Bjorn H. Samset, Akinori Ito, Yves Balkanski, Claudia Di Biagio, Manolis N. Romanias, Yue Huang, Jun Meng
Summary: Mineral dust particles with a wide range of diameters, from <0.1 μm to >100 μm, have unique interactions with various aspects of the Earth system. Coarse and supercoarse dust aerosols, defined as particles with diameters of 2.5-10 μm and 10-62.5 μm, have been found to be transported farther and more abundant than previously thought. These aerosols have significant impacts on dust-radiation interactions, dust-cloud interactions, atmospheric chemistry, and biogeochemistry. Recommendations have been made to improve the representation of coarse and supercoarse dust aerosols in models and remote sensing retrievals. Accurate representation of these aerosols is critical for understanding their impacts on the Earth system.
Correction
Multidisciplinary Sciences
Mario Mech, Andre Ehrlich, Andreas Herber, Christof Lupkes, Manfred Wendisch, Sebastian Becker, Yvonne Boose, Dmitry Chechin, Susanne Crewell, Regis Dupuy, Christophe Gourbeyre, Joerg Hartmann, Evelyn Jakel, Olivier Jourdan, Leif-Leonard Kliesch, Marcus Klingebiel, Birte Solveig Kulla, Guillaume Mioche, Manuel Moser, Nils Risse, Elena Ruiz-Donoso, Michael Schafer, Johannes Stapf, Christiane Voigt
Article
Energy & Fuels
Moritz Lochmann, Heike Kalesse-Los, Michael Schaefer, Ingrid Heinrich, Ronny Leinweber
Summary: Although wind power predictions have shown improvement in the past decade, uncertainties still remain due to sudden large changes in wind speed. Analysis of a wind farm in Eastern Germany found that ramp events were most frequent in March and April, and least frequent in November and December. Furthermore, incorporating observational wind speed data significantly improved the performance of the wind power prediction tool, especially during ramp events.
Article
Environmental Sciences
Juseon Shin, Dongho Shin, Detlef Mueller, Youngmin Noh
Summary: This study used AERONET Sun/Sky radiometer data to identify the temporal variations in aerosol loadings and sizes in East Asia. The results showed regional differences in aerosol contributions and changes in particle size due to pollution reduction policies. The study highlights the importance of considering aerosol properties, not just aerosol loadings.
ATMOSPHERIC ENVIRONMENT
(2023)
Article
Optics
Song Mao, Zhenping Yin, Longlong Wang, Yang Yi, Anzhou Wang, Zhichao Bu, Yubao Chen, Yiming Zhao, Detlef Muller, Xuan Wang
Summary: Multi-wavelength Raman lidar is widely used for analyzing aerosol optical properties. This study proposes an iteration retrieval algorithm based on multi-wavelength Raman lidar to obtain more reliable aerosol optical properties. The results show that the proposed algorithm significantly improves the accuracy of aerosol optical properties.
Article
Environmental Sciences
Sebastian Becker, Andre Ehrlich, Michael Schaefer, Manfred Wendisch
Summary: This study analyzes the cloud radiative effect (CRE) obtained from three airborne campaigns in the Arctic. The results show differences in CRE between sea ice and open-ocean surfaces, with clouds having a cooling effect over open ocean and a warming effect over sea ice. However, the warming effect neutralizes during mid-summer.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2023)
Article
Meteorology & Atmospheric Sciences
Ulla Wandinger, Athena Augusta Floutsi, Holger Baars, Moritz Haarig, Albert Ansmann, Anja Huenerbein, Nicole Docter, David Donovan, Gerd-Jan van Zadelhoff, Shannon Mason, Jason Cole
Summary: The Hybrid End-To-End Aerosol Classification (HETEAC) model is introduced for Earth Clouds, Aerosols and Radiation Explorer (EarthCARE) mission. It serves as a common baseline for algorithm development, evaluation, and implementation, ensuring consistency of aerosol products from multiple instruments and facilitating radiative-closure assessments. The model combines theoretical and end-to-end approaches to represent aerosol types in terms of microphysical, optical, and radiative properties. Four basic aerosol components are used, representing pollution, smoke, sea salt, and dust. Mixing rules are provided to calculate optical and radiative properties of any aerosol blend composed of these components. Applications in test scene generation, retrieval algorithm development, and radiative-closure assessments are discussed.
ATMOSPHERIC MEASUREMENT TECHNIQUES
(2023)
Article
Meteorology & Atmospheric Sciences
Athena Augusta Floutsi, Holger Baars, Ronny Engelmann, Dietrich Althausen, Albert Ansmann, Stephanie Bohlmann, Birgit Heese, Julian Hofer, Thomas Kanitz, Moritz Haarig, Kevin Ohneiser, Martin Radenz, Patric Seifert, Annett Skupin, Zhenping Yin, Sabur F. Abdullaev, Mika Komppula, Maria Filioglou, Elina Giannakaki, Iwona S. Stachlewska, Lucja Janicka, Daniele Bortoli, Eleni Marinou, Vassilis Amiridis, Anna Gialitaki, Rodanthi-Elisavet Mamouri, Boris Barja, Ulla Wandinger
Summary: This paper presents a comprehensive collection of lidar-derived aerosol intensive optical properties, which can be used for the development of aerosol-typing schemes and the harmonization of satellite records of aerosol properties. The data collection, named DeLiAn, includes intensive optical properties for various aerosol categories, covering both basic aerosol types and peculiar mixtures. With the most up-to-date and extensive overview of optical properties from aerosol lidar measurements, this paper provides a solid basis for future aerosol retrievals using both spaceborne and ground-based lidars.
ATMOSPHERIC MEASUREMENT TECHNIQUES
(2023)
Article
Environmental Sciences
Dmitry G. Chechin, Christof Luepkes, Joerg Hartmann, Andre Ehrlich, Manfred Wendisch
Summary: This study investigates the role of clouds in the Arctic amplification process, focusing on cloud processes such as radiative and turbulent fluxes. The analysis of aircraft observation data reveals the vertical structure of turbulence in the cloudy boundary layer. The study shows that cloud-top cooling can be a significant source of turbulent kinetic energy in weak wind conditions.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2023)
Article
Meteorology & Atmospheric Sciences
Heike Kalesse-Los, Anton Koetsche, Andreas Foth, Johannes Roettenbacher, Teresa Vogl, Jonas Witthuhn
Summary: Continuous long-term ground-based remote-sensing observations combined with vertically pointing cloud radar and ceilometer measurements are well suited for identifying precipitation evaporation fall streaks (so-called virga). Here we introduce the functionality and workflow of a new open-source tool, the Virga-Sniffer, which was developed within the framework of RV Meteor observations during the EUREC4A field experiment. The Virga-Sniffer Python package is highly modular and configurable and can be applied to multilayer cloud situations.
ATMOSPHERIC MEASUREMENT TECHNIQUES
(2023)
Article
Meteorology & Atmospheric Sciences
Yun He, Zhenping Yin, Albert Ansmann, Fuchao Liu, Longlong Wang, Dongzhe Jing, Huijia Shen
Summary: Characterizing the 3-D distribution of dust-related cloud condensation nuclei concentration and ice-nucleating particle concentration globally is crucial in improving the current consideration of ACIs in global circulation models. The POlarization LIdar PHOtometer Networking (POLIPHON) method, combined with spaceborne lidar observations, shows potential in achieving this. However, the conversion factors that convert aerosol optical properties to microphysical properties are still less constrained in many regions, limiting the applications of this method.
ATMOSPHERIC MEASUREMENT TECHNIQUES
(2023)
Article
Environmental Sciences
Kevin Ohneiser, Albert Ansmann, Jonas Witthuhn, Hartwig Deneke, Alexandra Chudnovsky, Gregor Walter, Fabian Senf
Summary: Wildfire smoke can be lofted to the upper troposphere and lower stratosphere through radiative heating, without the need of pyrocumulonimbus convection. Simulation results show that lofting rate is strongly influenced by aerosol optical thickness, layer depth, height, and black carbon fraction. Comparisons between simulations and CALIOP observations confirm the applicability of the self-lofting model.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2023)
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)
