Article
Engineering, Environmental
Han Han, Lin Zhang, Zehui Liu, Xu Yue, Lei Shu, Xiaolin Wang, Yuanhang Zhang
Summary: Over the past decades, the differences in urban vs nonurban ozone have decreased significantly in North America, Europe, South Korea, and Japan. This can be mainly attributed to the reduction of anthropogenic nitrogen oxide emissions, which has resulted in closer ozone formation regimes between urban and nonurban areas.
ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
(2023)
Article
Environmental Sciences
Marco Travaglio, Yizhou Yu, Rebeka Popovic, Liza Selley, Nuno Santos Leal, Luis Miguel Martins
Summary: The study reveals a positive relationship between air pollutant concentrations, particularly nitrogen oxides, and COVID-19 mortality and infectivity. PM2.5 was identified as a major contributor to COVID-19 cases in England, with a 12% increase in cases linked to a 1 m³ increase in the long-term average of PM2.5. The findings suggest that even a small increase in air pollution could lead to a significant rise in COVID-19 infectivity and mortality rates in England.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Elza Bontempi, Claudio Carnevale, Antonella Cornelio, Marialuisa Volta, Alessandra Zanoletti
Summary: This study presents a methodology to assess the impact of pandemic restrictions on air quality and applies it in Brescia. The results show that NO2 concentrations are strongly influenced by traffic emissions, while the reduction of transport emissions does not help to avoid severe air pollution due to other pollution sources.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Yuqing Dai, Xiaoming Cai, Jian Zhong, A. Rob MacKenzie
Summary: A multi-box model is proposed to simulate the transportation and distribution of chemical species in street canyons, showing good agreement with LES simulations, especially for deep canyons. The model performs well in capturing patterns and is more suitable for sensitivity testing compared to LES.
ATMOSPHERIC ENVIRONMENT
(2021)
Article
Biochemical Research Methods
Rachel L. Davey, Erick J. Mattson, J. Alex Huffman
Summary: The study demonstrates that gas-phase ozone and nitrogen dioxide can react with proteins in the atmosphere to form nitrotyrosine, potentially impacting human health. Bovine serum albumin samples exposed to urban air in Denver, Colorado were used to investigate protein modification under ambient conditions, highlighting the formation of nitrotyrosine and its relevance to atmospheric exposure studies.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2022)
Article
Environmental Sciences
Marco Ravina, Gianmarco Caramitti, Deborah Panepinto, Mariachiara Zanetti
Summary: This work analyzes the historical series of NOx, NO2, and O-3 concentrations measured in Turin, Italy from 2015 to 2019. The study investigates the concentration trends of these pollutants and establishes simplified relationships based on observed values. The results show that temperature affects the NO2/NOx ratio and there are differences between monitoring stations due to different urban contexts. The analysis of the ratio between nitrogen oxides and tropospheric ozone confirms the occurrence of chemical reactions between the two species.
AIR QUALITY ATMOSPHERE AND HEALTH
(2022)
Article
Environmental Sciences
Celine El-Khoury, Ibrahim Alameddine, Jad Zalzal, Mutasem El-Fadel, Marianne Hatzopoulou
Summary: This study utilized land use regressions to generate high-resolution nitrogen dioxide and ozone exposure surfaces for the Greater Beirut Area in Lebanon. It found that traffic emissions and a fossil-fuel power plant were the main contributors to NO2 and NOx levels, while serving as sinks for O-3 concentrations. The results indicated that around 99% of the population in the GBA were exposed to NO2 levels exceeding the WHO standard.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2021)
Article
Engineering, Environmental
Weiye Qu, Xue Fang, Zhouhong Ren, Junxiao Chen, Xi Liu, Zhen Ma, Xingfu Tang
Summary: By introducing an appropriate amount of O3 into the simulated stack gas, the SCR activity at low temperatures (<250 degrees C) can be significantly enhanced. The introduction of O3 allows SCR to proceed along a NH4NO3-mediated Langmuir-Hinshelwood model, leading to the enhancement of activity at low temperatures.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Yuhan Wang, Lucas Bastien, Ling Jin, Robert A. Harley
Summary: Ground-level ozone has negative impacts on human health and ecosystems. In California's San Joaquin Valley (SJV), the effectiveness of controlling precursor emissions on ozone levels depends on the time and location of the emissions. The study shows that the impacts of local emissions and emissions from surrounding areas are similar in magnitude in the SJV. Same-day emission impacts are mainly attributed to local sources, with the most influential emissions of volatile organic compounds (VOCs) and nitrogen oxides (NOx) occurring in the morning and early afternoon. The influence from emissions in the Sacramento Valley peaks 5-6 hours later than emissions from the San Francisco Bay area for the northernmost SJV receptor, but this difference diminishes for receptors located further downwind. There is a shift towards NOx-sensitive conditions in the afternoon for all receptors except the southernmost one.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Green & Sustainable Science & Technology
Daphne Parliari, Christos Giannaros, Sofia Papadogiannaki, Dimitrios Melas
Summary: This study explores the impact of short-term exposure to PM10 and O-3 on mortality rates in Thessaloniki, Greece, specifically focusing on the elderly population. The results demonstrate strong associations between PM10 and O-3 levels and overall and cardiorespiratory mortality, particularly in the elderly. For every 10 μg/m³ increase in PM10 concentration, there was a 2.3% increase in total mortality and a 2% increase in cardiorespiratory mortality. Similarly, for every 10 μg/m³ increase in O-3 concentration, there was a 3.9% increase in all-cause mortality and a 5.3% increase in cardiorespiratory mortality. No significant associations were found for cerebrovascular mortality.
Article
Meteorology & Atmospheric Sciences
Xiang Xiao, Yangyang Xu, Xiaorui Zhang, Fan Wang, Xiao Lu, Zongwei Cai, Guy Brasseur, Meng Gao
Summary: This study investigates the cooccurrences of heat and air pollution extremes in China. The results show a significant increase in the frequency of joint exceedances of wet-bulb temperature (w) and O-3, mainly in the Beijing-Tianjin-Hebei region and the Yangtze River delta. Moreover, the rate of joint exceedance is higher than the rate of T-w and O-3 themselves.
BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY
(2022)
Article
Environmental Sciences
Mohammad Rehan, Said Munir
Summary: This study established a continuous air quality monitoring station in Jeddah, Saudi Arabia, and utilized quantile regression models to analyze the concentration distribution of NO2 and O-3. By examining the influencing factors on each quantile, it provides a better understanding of the behavior of air pollution and its interactions with various factors.
Article
Physiology
Piotr Dabrowiecki, Andrzej Chcialowski, Agata Dabrowiecka, Anna Piorkowska, Artur Badyda
Summary: Allergic rhinitis (AR) affects 10% of the world population, and its short-term risk of exacerbations due to air pollution is unclear. A study in Poland found that exposure to ozone (O3) increased the risk of AR hospital admissions in both warm and cold seasons, while exposure to particulate matter less than 10 & mu;m (PM10) and nitrogen dioxide (NO2) increased the risk of AR hospitalization in warm and cold seasons respectively. The findings suggest the importance of managing air pollution to reduce the incidence of AR.
RESPIRATORY PHYSIOLOGY & NEUROBIOLOGY
(2023)
Review
Environmental Sciences
Giulia Ulpiani
Summary: This paper conducts a systematic review of the existing knowledge on the link between urban heat island (UHI) and urban pollution island (UPI) since 1990, analyzing results from 16 countries and 11 climatic zones. By examining methodological and experimental trends, geographical dependencies, and research gaps, the paper outlines opportunities and challenges towards disentangling and mitigating these phenomena. Detailed content analysis according to five prominent topics provides a blueprint for coping strategies and precautions in urban design.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Fangzhou Guo, Alexander A. T. Bui, Benjamin C. Schulze, Subin Yoon, Sujan Shrestha, Henry W. Wallace, Yuta Sakai, Blake W. Actkinson, Matthew H. Erickson, Sergio Alvarez, Rebecca Sheesley, Sascha Usenko, James Flynn, Robert J. Griffin
Summary: San Antonio, the second-largest city in Texas, has been designated as a marginal non-attainment area for the 2015 ozone National Ambient Air Quality Standard by the US Environmental Protection Agency. Field measurements and modeling suggest that nitrogen oxides play a key role in O3 formation, with recommendations to strengthen NOX emission controls to reduce O3 formation in the city.
ATMOSPHERIC ENVIRONMENT
(2021)
Article
Meteorology & Atmospheric Sciences
Robert Vautard, Nikolay Kadygrov, Carley Iles, Fredrik Boberg, Erasmo Buonomo, Katharina Buelow, Erika Coppola, Lola Corre, Erik van Meijgaard, Rita Nogherotto, Marit Sandstad, Clemens Schwingshackl, Samuel Somot, Emma Aalbers, Ole B. Christensen, James M. Ciarlo, Marie-Estelle Demory, Filippo Giorgi, Daniela Jacob, Richard G. Jones, Klaus Keuler, Erik Kjellstrom, Geert Lenderink, Guillaume Levavasseur, Grigory Nikulin, Jana Sillmann, Cosimo Solidoro, Silje Lund Sorland, Christian Steger, Claas Teichmann, Kirsten Warrach-Sagi, Volker Wulfmeyer
Summary: The use of regional climate model (RCM) projections in providing regional climate information is expanding rapidly, particularly in Europe. While model simulations generally agree with observations and reanalyses, there are systematic biases identified related to temperature, precipitation, and dynamical variables.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2021)
Article
Meteorology & Atmospheric Sciences
Catherine A. Senior, John H. Marsham, Segolene Berthou, Laura E. Burgin, Sonja S. Folwell, Elizabeth J. Kendon, Cornelia M. Klein, Richard G. Jones, Neha Mittal, David P. Rowell, Lorenzo Tomassini, Theo Vischel, Bernd Becker, Cathryn E. Birch, Julia Crook, Andrew J. Dougill, Declan L. Finney, Richard J. Graham, Neil C. G. Hart, Christopher D. Jack, Lawrence S. Jackson, Rachel James, Bettina Koelle, Herbert Misiani, Brenda Mwalukanga, Douglas J. Parker, Rachel A. Stratton, Christopher M. Taylor, Simon O. Tucker, Caroline M. Wainwright, Richard Washington, Martin R. Willet
Summary: Through Pan-Africa convection-permitting regional climate model simulations, the impact of high resolution and explicit representation of atmospheric moist convection on the present and future climate of Africa has been studied, showing significant improvements in rainfall characteristics, circulation, and extremes. These simulations are expected to become a routine component of climate projection.
BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY
(2021)
Article
Environmental Sciences
Robert J. Allen, Larry W. Horowitz, Vaishali Naik, Naga Oshima, Fiona M. O'Connor, Steven Turnock, Sungbo Shim, Philippe Le Sager, Twan van Noije, Kostas Tsigaridis, Susanne E. Bauer, Lori T. Sentman, Jasmin G. John, Conor Broderick, Makoto Deushi, Gerd A. Folberth, Shinichiro Fujimori, William J. Collins
Summary: Research shows that reducing non-methane NTCFs (aerosols and ozone precursors) improves air quality but leads to increased global mean precipitation and surface warming by mid-century and end-of-the-century. Further mitigation of all NTCFs (including methane) improves air quality with significant ozone pollution reductions and offsets the wetting effects, leading to surface cooling by mid-century and end-of-the-century.
ENVIRONMENTAL RESEARCH LETTERS
(2021)
Article
Meteorology & Atmospheric Sciences
Ranjeet S. Sokhi, P. R. Tiwari, Joanna S. N. de Medeiros, Gerd A. Folberth, William J. Collins
Summary: The study investigates the impact of synoptic weather and larger scale circulation patterns on regional weather and extreme events over Asia. Model results suggest future changes in circulation patterns and increase in wintertime minimum temperatures by 3-4 degrees C by 2050. Anti-cyclonic activity may play a key role in influencing heat waves and droughts in various regions of Asia.
THEORETICAL AND APPLIED CLIMATOLOGY
(2021)
Article
Meteorology & Atmospheric Sciences
C. J. Smith, G. R. Harris, M. D. Palmer, N. Bellouin, W. Collins, G. Myhre, M. Schulz, J. -C. Golaz, M. Ringer, T. Storelvmo, P. M. Forster
Summary: A time history of historical aerosol effective radiative forcing from 1750 to 2019 was developed in this study, which shows a modest recovery in aerosol forcing between 1980 and 2014. The analysis also gives a range of equilibrium climate sensitivity, with a best estimate of 3.1 degrees C, and a transient climate response with a best estimate of 1.8 degrees C.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2021)
Article
Meteorology & Atmospheric Sciences
Thomas Caton Harrison, Richard Washington, Sebastian Engelstaedter, Richard G. Jones, Nick H. Savage
Summary: This study investigates the impact of central Saharan orography on the strength of Harmattan low-level jets (LLJs) and associated dust emission frequency. Results suggest that central Saharan orography plays an important role in sustaining erosive dusty conditions during boreal summer.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2021)
Article
Meteorology & Atmospheric Sciences
Myles R. Allen, Glen P. Peters, Keith P. Shine, Christian Azar, Paul Balcombe, Olivier Boucher, Michelle Cain, Philippe Ciais, William Collins, Piers M. Forster, Dave J. Frame, Pierre Friedlingstein, Claire Fyson, Thomas Gasser, Bill Hare, Stuart Jenkins, Steven P. Hamburg, Daniel J. A. Johansson, John Lynch, Adrian Macey, Johannes Morfeldt, Alexander Nauels, Ilissa Ocko, Michael Oppenheimer, Stephen W. Pacala, Raymond Pierrehumbert, Joeri Rogelj, Michiel Schaeffer, Carl F. Schleussner, Drew Shindell, Ragnhild B. Skeie, Stephen M. Smith, Katsumasa Tanaka
NPJ CLIMATE AND ATMOSPHERIC SCIENCE
(2022)
Article
International Relations
Friederike E. L. Otto, Petra Minnerop, Emmanuel Raju, Luke J. Harrington, Rupert F. Stuart-Smith, Emily Boyd, Rachel James, Richard Jones, Kristian C. Lauta
Summary: Climate litigation is a strategic tool for advocating climate justice and seeking compensation for losses caused by climate change. However, all cases seeking compensation for specific climate-related impacts have been unsuccessful so far. The lack of a general understanding of the urgency of climate change, the scientific evidence linking climate change to present impacts, and the attribution of individual losses to human-caused climate change are major obstacles for climate litigation.
Article
Environmental Sciences
Alex C. Ruane, Robert Vautard, Roshanka Ranasinghe, Jana Sillmann, Erika Coppola, Nigel Arnell, Faye Abigail Cruz, Suraje Dessai, Carley E. Iles, A. K. M. Saiful Islam, Richard G. Jones, Mohammad Rahimi, Daniel Ruiz Carrascal, Sonia Seneviratne, Jerome Servonnat, Anna A. Sorensson, Mouhamadou Bamba Sylla, Claudia Tebaldi, Wen Wang, Rashyd Zaaboul
Summary: The climate science and applications communities require a comprehensive concept to assess physical climate conditions relevant for impacts on human and natural systems. The CID approach provides a framework to evaluate the effects of different CIDs on societal and ecological elements, supporting adaptation planning and risk management.
Article
Multidisciplinary Sciences
Callum Munday, Nicholas Savage, Richard G. Jones, Richard Washington
Summary: The aridification of East Africa during the past 8 million years is often considered as a driving force behind changes in vegetation and the evolution of new animal lineages, including hominins. This study uses numerical model experiments to show that the valleys in the East African Rift System play a central role in creating dry conditions in East Africa. These valleys channel water vapor towards Central Africa, resulting in increased rainfall in the Congo Basin rainforest and drier conditions in East Africa. The findings suggest that the tectonic development of Africa has shaped rainfall distribution and influenced the evolution of African plant and animal lineages.
Article
Environmental Sciences
Didier Hauglustaine, Fabien Paulot, William Collins, Richard Derwent, Maria Sand, Olivier Boucher
Summary: Hydrogen is viewed as an important energy option for the future, but it also has climate implications. Experimental data suggests that a green hydrogen economy can reduce carbon dioxide emissions, while blue hydrogen may result in a climate penalty. Leakage rate and hydrogen production pathways are key factors in achieving clear climate benefits from a large-scale transition to a hydrogen economy.
COMMUNICATIONS EARTH & ENVIRONMENT
(2022)
Article
Environmental Sciences
David S. Stevenson, Richard G. Derwent, Oliver Wild, William J. Collins
Summary: Compared with 2019, the global growth rate of background atmospheric methane increased in 2020, with reductions in nitrogen oxide emissions leading to an increase in methane growth rate, while reductions in carbon monoxide and non-methane volatile organic compound emissions partially countered this effect. These results indicate that the anthropogenic emission changes associated with COVID-19 lockdowns have had a significant impact on methane levels.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2022)
Article
Environmental Sciences
Ben J. Clarke, Friederike E. L. Otto, Richard G. Jones
Summary: The article discusses the importance of utilizing extreme weather events to understand current and future climate risks, proposing a framework that combines event attribution with a risk framework, and explores the significance of such "inventories" for disaster preparedness and global adaptation assessments.
CLIMATE RISK MANAGEMENT
(2021)
Article
Geosciences, Multidisciplinary
Garry D. Hayman, Edward Comyn-Platt, Chris Huntingford, Anna B. Harper, Tom Powell, Peter M. Cox, William Collins, Christopher Webber, Jason Lowe, Stephen Sitch, Joanna House, Jonathan C. Doelman, Detlef P. van Vuuren, Sarah E. Chadburn, Eleanor Burke, Nicola Gedney
Summary: This study investigates mitigation scenarios to achieve the 1.5 or 2 degrees C warming targets of the Paris Agreement by reducing anthropogenic greenhouse gas emissions and enhancing negative emissions. The results show that methane mitigation has a large impact on the anthropogenic fossil fuel emission budgets globally, potentially offsetting carbon dioxide emissions. Land-based mitigation also has significant potential, but the effectiveness and preferred strategy vary regionally.
EARTH SYSTEM DYNAMICS
(2021)
Article
Environmental Sciences
Gillian D. Thornhill, William J. Collins, Ryan J. Kramer, Dirk Olivi, Ragnhild B. Skeie, Fiona M. O'Connor, Nathan Luke Abraham, Ramiro Checa-Garcia, Susanne E. Bauer, Makoto Deushi, Louisa K. Emmons, Piers M. Forster, Larry W. Horowitz, Ben Johnson, James Keeble, Jean-Francois Lamarque, Martine Michou, Michael J. Mills, Jane P. Mulcahy, Gunnar Myhre, Pierre Nabat, Vaishali Naik, Naga Oshima, Michael Schulz, Christopher J. Smith, Toshihiko Takemura, Simone Tilmes, Tongwen Wu, Guang Zeng, Jie Zhang
Summary: This paper quantifies the pre-industrial to present-day effective radiative forcing of anthropogenic emissions using CMIP6 models. The results show significant impacts from emissions of SO2, organic carbon, and black carbon, while greenhouse gases like methane and nitrous oxide have smaller effects. The differences in ERFs between models reflect variations in aerosol and chemistry schemes, especially in capturing methane-induced forcing.
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)