Article
Environmental Sciences
Jian Sun, Zhenxing Shen, Bin Zhang, Leiming Zhang, Yue Zhang, Qian Zhang, Diwei Wang, Yu Huang, Suixin Liu, Junji Cao
Summary: Incomplete combustion of solid fuels (animal dung and bituminous coal) during residential cooking and heating in the Qinghai-Tibetan Plateau leads to significant emissions of pollutants such as CO, PAHs, VOCs, PM2.5, and carbonaceous aerosols. The emission factors are higher than those reported in the literature, likely due to the region's high altitudes and deficient air supply to stoves. Attention should be paid to the emissions of PAH derivatives from solid fuel combustion in the QTP.
ENVIRONMENTAL POLLUTION
(2021)
Article
Meteorology & Atmospheric Sciences
Jinghua Chen, Xiaoqing Wu, Chunsong Lu, Yan Yin
Summary: The seasonal and diurnal variations of cloud systems are influenced by large-scale and local environments, with differences observed between Eastern Tibetan Plateau (ETP) and Eastern China. Warm-season precipitation in ETP exhibits diurnal cycles, while winter precipitation is mainly associated with cumulus clouds.
ADVANCES IN ATMOSPHERIC SCIENCES
(2022)
Article
Meteorology & Atmospheric Sciences
Hongwen Liu, Wenshou Tian, Jiangtao Li, Hongying Tian, Yan Wang, Liangliang Li, Tao Wang
Summary: Based on satellite observations and reanalysis data, the study investigates the seasonal evolution of the dry air valley (DAV) over the regions from the eastern Mediterranean to the western Tibetan Plateau. Monsoon-related descending motion contributes to 61% of the DAV's intensity, which peaks in late July and weakens gradually until October. The study also finds that zonal temperature gradient, wind patterns, and water vapor transport play significant roles in the formation and variation of the DAV.
ATMOSPHERIC RESEARCH
(2023)
Article
Environmental Sciences
Tanguang Gao, Yulan Zhang, Shichang Kang, Benjamin W. Abbott, Xiaoming Wang, Tingjun Zhang, Shuhua Yi, Orjan Gustafsson
Summary: The rate of permafrost collapse is accelerating on the Tibetan Plateau, with the area of collapsed permafrost increasing by approximately a factor of 40 from 1969 to 2017, with 70% of the collapsed area forming since 2004. These widespread perturbations could trigger changes in local ecosystem state and amplify large-scale permafrost climate feedbacks.
ENVIRONMENTAL RESEARCH LETTERS
(2021)
Article
Environmental Sciences
Hongyi Li, Ziniu Xiao, Junhong Wei, Ge Wang
Summary: Using data from the TIPEX III experiment, this study analyzed the seasonal and diurnal variations of soil moisture at different depths in seven stations on the Tibetan Plateau. The analysis focused on the differences in soil moisture between sites and the synergistic relationship between soil moisture and temperature. The study found significant variations in soil moisture with seasons and depths, as well as differences in soil moisture distribution between sites. These findings provide observational evidence for validating satellite data and parameterizing soil moisture models in the Tibetan Plateau.
Article
Environmental Sciences
Junhua Yang, Shichang Kang, Yuling Hu, Xintong Chen, Mukesh Rai
Summary: South Asian biomass burning is crucial for the heavy springtime air pollution over the Tibetan Plateau, contributing significantly to aerosol components. The transboundary transmissions of these aerosols are regulated by large-scale westerly winds and regional mountain-valley winds. In addition to worsening air quality, aerosols from South Asian biomass burning also lead to temperature decrease and precipitation reduction, posing a threat to the fragile ecosystem of the Tibetan Plateau during springtime.
ATMOSPHERIC ENVIRONMENT
(2023)
Article
Agronomy
Wanji Guo, Ziliang Zhang, Qing Liu, Juan Xiao, Huajun Yin
Summary: The study found that plants in an ectomycorrhizal spruce plantation in the eastern Tibetan Plateau showed a greater preference for soil NH4+-N, regardless of the growing season or non-growing season. Additionally, during the non-growing season, plants exhibited significantly higher absorption of soil amino acids.
Article
Meteorology & Atmospheric Sciences
Zhiqiang Lin, Weidong Guo, Xiuping Yao, Jun Du, Wenkai Li, Jun Ge
Summary: The Tibetan Plateau vortices are the major precipitation-producing weather systems on the plateau, with a more significant impact in the warm season but also important in certain regions during the cold season. The interannual variation of vortices and associated precipitation is mainly determined by the number of vortices, while the heating anomaly caused by the Tibetan Plateau thermodynamic effect is also a significant factor.
INTERNATIONAL JOURNAL OF CLIMATOLOGY
(2021)
Review
Environmental Sciences
Ruiyang Sun, Guangyi Sun, Sae Yun Kwon, Xinbin Feng, Shichang Kang, Qianggong Zhang, Jie Huang, Runsheng Yin
Summary: The biogeochemical cycling of mercury on the Tibetan Plateau is influenced by various factors such as human activities, climate change, and glacier melting. Significant bioaccumulation of mercury in Tibetan aquatic food chains highlights the need for international collaboration to reduce mercury migration.
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2021)
Editorial Material
Medicine, General & Internal
Blair J. Wylie, Kwaku P. Asante
Summary: Globally, around 3 billion people rely on solid biomass fuels for cooking or heating, leading to household air pollution that causes adverse health effects and an estimated 2.3 million premature deaths annually. The health risks include low birth weight and pneumonia, particularly in low-resource areas where the use of solid fuels is common.
NEW ENGLAND JOURNAL OF MEDICINE
(2022)
Article
Peripheral Vascular Disease
Zhiguang Liu, Perry Hystad, Yuqing Zhang, Sumathy Rangarajan, Lu Yin, Yang Wang, Bo Hu, Fanghong Lu, Yihong Zhou, Yindong Li, Shrikant Bangdiwala, Salim Yusuf, Wei Li, Lap Ah Tse
Summary: A large Chinese study found a statistically insignificant increase in the association between solid fuel use for heating and hypertension prevalence or blood pressure. The study suggests that the link between indoor air pollution from solid fuel use and hypertension or BP needs further investigation through prospective cohort studies.
JOURNAL OF HYPERTENSION
(2021)
Article
Geosciences, Multidisciplinary
Can Zhang, Cheng Zhao, Shi-Yong Yu, Xiangdong Yang, Jun Cheng, Xiaojian Zhang, Bin Xue, Ji Shen, Fahu Chen
Summary: The Tibetan Plateau is one of the most sensitive areas to global climate changes. Research shows that the warming during the Last Deglaciation was primarily driven by rising atmospheric greenhouse gases, while Holocene temperature changes were mainly controlled by local seasonal insolation and additional radiative forcing of greenhouse gases.
EARTH-SCIENCE REVIEWS
(2022)
Article
Chemistry, Multidisciplinary
Lin Liu, Qinghua Zhang, Juan Gui, Baijuan Zhang, Hang Yang, Dawei Lu, Zigu Chen, Qian Liu, Zongxing Li, Guibin Jiang
Summary: This study investigated the occurrence of traffic-derived magnetite particles in roadside soils on the Tibetan Plateau, revealing high levels of magnetite and associations with anthropogenic activities. The sources of magnetite particles were identified as mainly from traffic emissions, particularly wear particles, rather than natural sources. These findings highlight the impact of anthropogenic magnetite pollution from traffic emission on near-road residents.
ENVIRONMENTAL SCIENCE-NANO
(2022)
Article
Multidisciplinary Sciences
Haiting Gu, Yue-Ping Xu, Li Liu, Jingkai Xie, Lu Wang, Suli Pan, Yuxue Guo
Summary: This study introduces a model for accurately estimating terrestrial water storage change and characterizing catchment memory processes and durations. The results indicate that precipitation-dominated basins are mainly controlled by precipitation, while non-precipitation-dominated basins are strongly influenced by temperature. Quantifying catchment memory can provide lead times for seasonal streamflow forecasts and water resource management.
NATURE COMMUNICATIONS
(2023)
Article
Geriatrics & Gerontology
Zhigang Hu, Yufeng Tian, Xinyu Song, Fanjun Zeng, Ailan Yang
Summary: This study aimed to investigate the associations between household air pollution and muscle strength and sarcopenia in the Chinese older population. The results showed that using solid fuel for cooking and heating was associated with decreased muscle strength and mass, as well as an increased risk of sarcopenia.
JOURNAL OF CACHEXIA SARCOPENIA AND MUSCLE
(2023)
Article
Construction & Building Technology
Alexandra M. Lai, Sierra Clark, Ellison Carter, Ming Shan, Kun Ni, Xudong Yang, Jill Baumgartner, James J. Schauer
Article
Environmental Sciences
Sepideh Esmaeilirad, Alexandra Lai, Gulcin Abbaszade, Juergen Schnelle-Kreis, Ralf Zimmermann, Gaelle Uzu, Kaspar Daellenbach, Francesco Canonaco, Hossein Hassankhany, Mohammad Arhami, Urs Baltensperger, Andre S. H. Prevot, James J. Schauer, Jean-Luc Jaffrezo, Vahid Hosseini, Imad El Haddad
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Engineering, Chemical
Sean A. Tacey, Tibor Szilvasi, James J. Schauer, Manos Mavrikakis
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2020)
Article
Environmental Sciences
Chi-Tsan Wang, Kirsti Ashworth, Christine Wiedinmyer, John Ortega, Peter C. Harley, Quazi Z. Rasool, William Vizuete
ATMOSPHERIC ENVIRONMENT
(2020)
Article
Environmental Sciences
Laura Kiely, Dominick Spracklen, Christine Wiedinmyer, Luke Conibear, Carly L. Reddington, Stephen R. Arnold, Christoph Knote, Md Firoz Khan, Mohd Talib Latif, Lailan Syaufina, Hari A. Adrianto
ENVIRONMENTAL RESEARCH LETTERS
(2020)
Article
Environmental Sciences
Colin Harkins, Brian C. McDonald, Daven K. Henze, Christine Wiedinmyer
Summary: The COVID-19 pandemic and subsequent lockdowns in the US significantly impacted motor vehicle traffic and emissions, posing challenges for air quality modeling and forecasting. Adjusting emissions based on fuel sales information provided more accurate results compared to mobility datasets. The FIVE model estimated a 20%-25% reduction in mobile source NO (x) emissions in April 2020, with a smaller drop of 6%-7% by July.
ENVIRONMENTAL RESEARCH LETTERS
(2021)
Article
Multidisciplinary Sciences
L. Kiely, D. V. Spracklen, S. R. Arnold, E. Papargyropoulou, L. Conibear, C. Wiedinmyer, C. Knote, H. A. Adrianto
Summary: Deforestation and drainage have made Indonesian peatlands susceptible to burning, causing significant economic losses. Completion of restoration work could significantly reduce burned areas and emissions, helping to reduce air pollution and improve human health.
NATURE COMMUNICATIONS
(2021)
Article
Meteorology & Atmospheric Sciences
Maximilien J. Desservettaz, Jenny A. Fisher, Ashok K. Luhar, Matthew T. Woodhouse, Beata Bukosa, Rebecca R. Buchholz, Christine Wiedinmyer, David W. T. Griffith, Paul B. Krummel, Nicholas B. Jones, Nicholas M. Deutscher, Jesse W. Greenslade
Summary: Australian fires have a significant impact on atmospheric composition and carbon budgets, but the emissions from biomass burning in Australia are uncertain. This study evaluates the performance of global models and biomass burning emission inventories in simulating carbon monoxide in the Australian atmosphere using various observations. The results suggest that GFED4s is the best option for global modeling studies focusing on Australia or the Southern Hemisphere, and continuous measurements are needed to improve global biomass burning inventories.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2022)
Article
Environmental Sciences
Qingqing Xu, Anthony LeRoy Westerling, Andrew Notohamiprodjo, Christine Wiedinmyer, Joshua J. Picotte, Sean A. Parks, Matthew D. Hurteau, Miriam E. Marlier, Crystal A. Kolden, Jonathan A. Sam, W. Jonathan Baldwin, Christiana Ade
Summary: Wildfire severity is a critical indicator with far-reaching impacts on air quality, climate, and public health. Accurate inventories are essential for assessing and managing these impacts, with the frequency and magnitude of large wildfires increasing in recent decades. The developed WBSE framework can provide quick estimates for wildfire severity and emissions, which can also be applied to other regions with modified data.
ENVIRONMENTAL RESEARCH LETTERS
(2022)
Article
Meteorology & Atmospheric Sciences
Wenfu Tang, Louisa K. Emmons, Rebecca R. Buchholz, Christine Wiedinmyer, Rebecca H. Schwantes, Cenlin He, Rajesh Kumar, Gabriele G. Pfister, Helen M. Worden, Rebecca S. Hornbrook, Eric C. Apel, Simone Tilmes, Benjamin Gaubert, Sara-Eva Martinez-Alonso, Forrest Lacey, Christopher D. Holmes, Glenn S. Diskin, Ilann Bourgeois, Jeff Peischl, Thomas B. Ryerson, Johnathan W. Hair, Andrew J. Weinheimer, Denise D. Montzka, Geoffrey S. Tyndall, Teresa L. Campos
Summary: This study analyzes the effects of the diurnal cycle of fire emissions (DCFE) and plume rise on U.S. air quality using the MUSICAv0 model. The results show that including plume rise improves model agreement with observations and has a larger impact than DCFE. Furthermore, DCFE and plume rise also impact local-to-regional meteorology and chemical reaction rates.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2022)
Article
Chemistry, Multidisciplinary
Nanqi Bao, Jake I. Gold, Jonathan K. Sheavly, James J. Schauer, Victor M. Zavala, Van Lehn, Manos Mavrikakis, Nicholas L. Abbott
Summary: This study reveals that liquid crystals can undergo ordering transitions in response to surface reactions triggered by metal oxide substrates, offering a new class of substrates for amplifying atomic-scale transformations. The experiments and computational modeling demonstrate that the reaction between SO2 and H2O on anatase (101) substrates displaces the liquid crystal from the surface, resulting in an orientation transition. Moreover, the liquid crystal shows a high selectivity to SO2, making it a promising material for sensing atmospheric chemical species.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Nanqi Bao, Shengli Jiang, Alexander Smith, James J. Schauer, Manos Mavrikakis, Reid C. Van Lehn, Victor M. Zavala, Nicholas L. Abbott
Summary: In this study, we show how analysis of the optical responses of liquid crystal films to targeted gases using a machine learning methodology can improve gas sensing and provide insights into the underlying physical processes. We demonstrate that a three-dimensional convolutional neural network can extract feature information from the color patterns of the liquid crystals to detect and quantify the presence of different gases in mixtures. Our findings suggest that the detection of O3 is driven by the transition time of brightness changes in the liquid crystals, while the detection of Cl2 is driven by late-developing color fluctuations. This research has implications for the design of portable liquid crystal monitoring devices.
Article
Geosciences, Multidisciplinary
Christine Wiedinmyer, Yosuke Kimura, Elena C. McDonald-Buller, Louisa K. Emmons, Rebecca R. Buchholz, Wenfu Tang, Keenan Seto, Maxwell B. Joseph, Kelley C. Barsanti, Annmarie G. Carlton, Robert Yokelson
Summary: We introduce FINNv2.5, a fire emissions inventory that provides publicly available emissions of trace gases and aerosols for various applications, including global and regional atmospheric chemistry modeling. FINNv2.5 includes updates to better represent burned area, vegetation burned, and chemicals emitted, and utilizes active fire detections from VIIRS for smaller fires. It also improves the calculation of burned area and updates fuel characterization and emissions factors. The daily emissions for trace gases and aerosols are determined for different time periods using MODIS and MODIS+VIIRS fire detections.
GEOSCIENTIFIC MODEL DEVELOPMENT
(2023)
Article
Environmental Sciences
Christina L. Norris, Ross Edwards, Chinmay Ghoroi, James J. Schauer, Marilyn Black, Michael H. Bergin
Summary: Indian cities have poor air quality, and there is limited research on the indoor sources of volatile organic compounds (VOCs). A pilot study in Ahmedabad and Gandhinagar, Gujarat, quantified hundreds of VOCs inside and outside 26 homes. The study found seasonal variations in VOC concentrations and sources, emphasizing the need for a better understanding of factors contributing to indoor pollution to reduce health risks.
Article
Environmental Sciences
Therese S. Carter, Colette L. Heald, Jose L. Jimenez, Pedro Campuzano-Jost, Yutaka Kondo, Nobuhiro Moteki, Joshua P. Schwarz, Christine Wiedinmyer, Anton S. Darmenov, Arlindo M. da Silva, Johannes W. Kaiser
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2020)