Article
Environmental Sciences
Luca Boniardi, Francesca Borghi, Serena Straccini, Giacomo Fanti, Davide Campagnolo, Laura Campo, Luca Olgiati, Simone Lioi, Andrea Cattaneo, Andrea Spinazze, Domenico Maria Cavallo, Silvia Fustinoni
Summary: The study compared personal exposure to traffic-related air pollution among car drivers and multimodal commuters in Milan, Italy. Results showed that cyclists had the shortest travel times and highest concentrations of pollutants during morning rush hour. Different commuters had varying levels of exposure to particulate matter, benzene, and NO2, highlighting the importance of a multi-pollutant approach in understanding personal exposure in multimodal mobility studies.
ATMOSPHERIC ENVIRONMENT
(2021)
Article
Environmental Sciences
Kuan-Jen Bai, Nguyen Thanh Tung, Ta-Chih Hsiao, Tsai-Ling Chen, Kian Fan Chung, Shu-Chuan Ho, Cheng-Yu Tsai, Jen-Kun Chen, Chun-Nin Lee, Kang-Yun Lee, Chih-Cheng Chang, Tzu-Tao Chen, Po-Hao Feng, Kuan-Yuan Chen, Chien-Ling Su, Huynh Nguyen Xuan Thao, Hoang Ba Dung, Tran Phan Chung Thuy, Yueh-Lun Lee, Hsiao-Chi Chuang
Summary: The deposition of particulate matter in the alveolar region is associated with a higher risk of pulmonary tuberculosis pleurisy compared to deposition in other lung regions.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Geosciences, Multidisciplinary
Mikalai Filonchyk, Michael P. Peterson
Summary: The United States is a leading producer of electricity in the world, with coal accounting for 21.8% of the total electricity generated, which amounted to about 4116 billion kWh in 2021. This study examines emissions from coal-fired power plants and their spatial extent using both terrestrial and satellite data, and emphasizes the effectiveness of government policies in reducing emissions. The research reveals a steady decline in pollutant emissions from the US energy sector, with sulfur dioxide (SO2) and nitrogen oxides (NOx) decreasing by 93.4% and 84.8% respectively between 1990 and 2020, and carbon dioxide (CO2) decreasing by 37% between 2007 and 2020. However, while overall emissions from coal-fired power plants are declining, some individual plants still lack environmental equipment to control emissions, and certain power plants remain major emitters of SO2, NOx, and CO2. The use of TROPOMI satellite data enables the detection of point emissions from individual power plants, including those in rural areas, highlighting the ongoing pollution concerns from coal-fired power plants despite the progress made.
GEOSCIENCE FRONTIERS
(2023)
Article
Engineering, Environmental
Yating Ma, Wanzhou Wang, Zichuan Li, Yaqin Si, Jinxi Wang, Libo Chen, Chen Wei, Hualiang Lin, Furong Deng, Xinbiao Guo, Xiaoli Ni, Shaowei Wu
Summary: The study found significant associations between short-term exposure to ambient NO2 and SO2 and the risk of daily hospital admissions for anxiety, especially in the southern region and patients under 65 years old.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Yanhui Tu, Gail M. Williams, Adriana M. Cortes de Waterman, Brett G. Toelle, Yuming Guo, Lyn Denison, Giridhara R. Babu, Bo-Yi Yang, Guang-Hui Dong, Bin Jalaludin, Guy B. Marks, Luke D. Knibbs
Summary: The study found that there is an association between low outdoor NO2 levels and sensitization to house dust mites in Australian children aged 7-11 years, but not with other aeroallergens.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Yuanyun Gao, Shuntian Wang, Chengxin Zhang, Chengzhi Xing, Wei Tan, Hongyu Wu, Xinhan Niu, Cheng Liu
Summary: Optimizing urban form through planning and management can improve air quality and control NO2 pollution. This study assesses the interactions between urban forms and airborne NO2 pollution in different cities in the Yangtze River Delta region of China using machine learning and geographical regression models. The results show a strong correlation between urban fragmentation and NO2 pollution, highlighting the importance of customized urban landscape management strategies for mitigating air pollution.
ENVIRONMENTAL POLLUTION
(2023)
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
Anastasia Montgomery, Madeleine I. G. Daepp, Marah Abdin, Pallavi Choudhury, Sara Malvar, Scott Counts, Daniel E. Horton
Summary: High-resolution air quality data products have the potential to quantify inequitable environmental exposures by identifying hotspots. However, different high-resolution data products may identify different hotspots, leading to difficulties in differentiating signal from noise. This study compares NO2 hotspots detected in Chicago using three different high-resolution air quality products and provides insights into dataset discrepancies and potential reasons for inconsistency.
ENVIRONMENTAL RESEARCH LETTERS
(2023)
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
Dianming Wu, Lingling Deng, Yihua Sun, Ruhai Wang, Li Zhang, Rui Wang, Yaqi Song, Zhiwei Gao, Haroon Haider, Yue Wang, Lijun Hou, Min Liu
Summary: Climate warming and plant invasion can worsen air pollution by increasing soil nitrogen cycling and emissions of reactive nitrogen gases. Warming increases soil NOy emissions and decreases microbial diversity and abundance, resulting in a more polluted air quality.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
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
Multidisciplinary Sciences
Yifan Wang, Pengfei Liu, Joel Schwartz, Edgar Castro, Wenhao Wang, Howard Chang, Noah Scovronick, Liuhua Shi
Summary: Since the enactment of the Clean Air Act, average ambient concentrations of nitrogen dioxide (NO2) in the United States have declined. However, racial/ethnic minorities are still disproportionately exposed to higher levels of NO2 pollution compared with Whites, both across the country and within major metropolitan areas. These exposure disparities have persisted and in many cases worsened over time, despite a decrease in national average NO2 concentration. Traffic is found to contribute the largest fraction to the NO2 disparity, while the contributions of other emission sources vary by location. These findings provide insights into policies aimed at reducing air pollution exposure disparities among races/ethnicities and locations.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Energy & Fuels
P. Fernandes, R. Tomas, E. Ferreira, B. Bahmankhah, M. C. Coelho
Summary: This study introduces an approach based on driver volatility measured by vehicle acceleration and jerk to estimate HEV emissions rates. The models using engine speed as input were good predictors of carbon dioxide and particulate matter, but not as effective for nitrogen oxides emissions. The results suggest that vehicular jerk classification can be useful to reduce instantaneous emission impacts during different driving regimes, and improve energy efficiency and eco-friendly driving behavior.
Article
Biodiversity Conservation
Virginie Hutsemekers, Lea Mouton, Hannah Westenbohm, Flavien Collart, Alain Vanderpoorten
Summary: The relative impact of climate change and air pollution on temporal shifts in species composition of epiphytic bryophytes in southern Belgium since the 1980s was examined. The study found that air quality variation was the main driver of the temporal shift, contributing to 38% of the change in species composition. Climate change alone did not have a significant impact. Monitoring the epiphyte communities at 10-year intervals is suggested to assess the impact of pollution sources, especially pesticides.
GLOBAL CHANGE BIOLOGY
(2023)
Article
Environmental Sciences
Hari S. Iyer, Jaime E. Hart, Melissa R. Fiffer, Elise G. Elliott, Jeff D. Yanosky, Joel D. Kaufman, Robin C. Puett, Francine Laden
Summary: This study examined the associations between multiple particulate matter and gaseous air pollutants and inflammatory cytokines. The findings suggest that these associations are generally weak, and further research is needed to clarify the specific mechanisms.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Studies
Lauren Andres, John R. Bryson, Hakeem Bakare, Francis Pope
Summary: This paper emphasizes the importance of identifying and analyzing institutional logics in policy analysis, and explores their role in addressing complex problems. By studying air quality policies in three cities in East Africa, it is found that conflicting institutional logics can hinder policy formulation and implementation.
ENVIRONMENT AND PLANNING C-POLITICS AND SPACE
(2023)
Article
Environmental Sciences
Vasileios N. Matthaios, Daniel Rooney, Roy M. Harrison, Petros Koutrakis, William J. Bloss
Summary: This study measures the NO2 exposure inside vehicles under real-world driving conditions and evaluates the effectiveness of different filters in reducing in-vehicle NO2 levels. The results show that replacing the previous filters with new activated carbon cabin filters can significantly reduce NO2 exposure. However, the removal efficiency of the activated carbon filters decreases over time.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Sophie A. Mills, Dimitrios Bousiotis, Jose M. Maya-Manzano, Fiona Tummon, A. Rob MacKenzie, Francis D. Pope
Summary: Pollen allergies are a global issue expected to worsen, creating demand for automated pollen monitoring systems. Low-cost Optical Particle Counters (OPCs) provide real-time data at affordable costs, making them a potential solution. This study examines the feasibility of using low-cost OPC sensors for meaningful pollen monitoring. Various methods, including supervised machine learning techniques, were employed to create pollen proxies from OPC data, with Neural Network (NN) and Random Forest (RF) methods showing the most success. These models were able to construct useful information on pollen from OPC data, demonstrating their potential for automated pollen monitoring.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Construction & Building Technology
Tony Bush, Suzanne Bartington, Francis D. Pope, Ajit Singh, G. Neil Thomas, Brian Stacey, George Economides, Ruth Anderson, Stuart Cole, Pedro Abreu, Felix C. P. Leach
Summary: The emergency responses to the COVID-19 pandemic resulted in significant changes in travel behaviors and economic activities, affecting urban air quality. This study utilized high-spatial resolution data from a network of low-cost air quality sensors in Oxford, UK to monitor the impacts of multiple COVID-19 public health restrictions on particulate matter concentrations. The findings demonstrated the potential of low-cost sensor technology in identifying localized changes in pollutant concentrations and highlighted the need for additional measures to reduce PM10 and PM2.5 levels in order to meet health guidelines and legislative targets.
BUILDING AND ENVIRONMENT
(2023)
Article
Environmental Sciences
Dimitrios Bousiotis, Leah-Nani S. Alconcel, David C. S. Beddows, Roy M. Harrison, Francis D. Pope
Summary: Air quality, both indoor and outdoor, is crucial for public health. This study introduces a new methodology using low-cost sensors and source apportionment techniques to understand the importance of different air pollution sources on indoor air quality. The results demonstrate the highest concentrations of PM in the bedroom, the highest PM spikes in the kitchen during cooking times, and the highest PM1 concentrations in the office due to outdoor infiltration. Source apportionment analysis shows that up to 95% of PM1 comes from outdoor sources in all rooms.
ENVIRONMENT INTERNATIONAL
(2023)
Article
Environmental Sciences
Seny Damayanti, Roy M. Harrison, Francis Pope, David C. S. Beddows
Summary: Diesel engines contribute significantly to the emissions of Black Carbon (BC) and ultrafine particles. Analysis of data from a continuous monitoring site in London reveals that despite the use of Diesel Oxidation Catalyst (DOC) and Diesel Particle Filter (DPF), concentrations of ultrafine particles still exceed the WHO threshold for high concentrations. While BC emissions have decreased significantly, ultrafine particle counts have only declined by a small margin. This highlights the need for more effective abatement technologies in locations with heavy diesel traffic.
ENVIRONMENT INTERNATIONAL
(2023)
Article
Environmental Sciences
Jose M. Maya-Manzano, Fiona Tummon, Reto Abt, Nathan Allan, Landon Bunderson, Bernard Clot, Benoit Crouzy, Gintautas Daunys, Sophie Erb, Monica Gonzalez-Alonso, Elias Graf, Lukasz Grewling, Joerg Haus, Evgeny Kadantsev, Shigeto Kawashima, Moises Martinez-Bracero, Predrag Matavulj, Sophie Mills, Erny Niederberger, Gian Lieberherr, Richard W. Lucas, David J. O'Connor, Jose Oteros, Julia Palamarchuk, Francis D. Pope, Jesus Rojo, Ingrida Sauliene, Stefan Schaefer, Carsten B. Schmidt-Weber, Martin Schnitzler, Branko Sikoparija, Carsten A. Skjoth, Mikhail Sofiev, Tom Stemmler, Marina Trivino, Yanick Zeder, Jeroen Buters
Summary: To benefit allergy patients and medical practitioners, reliable and timely pollen information is necessary. An international intercomparison campaign was conducted to evaluate the performance of automatic pollen monitoring instruments. Overall, some systems showed good results for total pollen and individual pollen types, while false positive classifications were observed outside of the main pollen season. Different algorithms applied to the same device also led to different results, highlighting the importance of the measurement system. Automatic systems have distinct advantages over manual measurements and can provide real-time observations at high temporal resolutions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Omid Ghaffarpasand, Francis D. Pope
Summary: This study uses GeoST mapping to evaluate the dynamic status of passenger cars by analyzing their speed-time-acceleration profiles. Using a pre-developed model and real-world datasets, the study translates the dynamics of vehicles into real-urban fuel consumption and emissions with high resolutions. The results show a decrease in real-urban NOx emissions due to the increasing contribution of Euro 6 vehicles, while the variations in fuel consumption and CO2 emissions are less significant. The study also finds that road slope and time of travel have significant effects on fuel consumption and emissions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Vasileios N. N. Matthaios, Jack M. M. Wolfson, Longxiang Li, Joy Lawrence, Petros Koutrakis
Summary: Recent studies in the USA have found that fine particulate matter (PM2.5) has adverse health effects even at levels below national air quality standards. This paper explores the relationship between particle gross beta-activity (PM-beta) and PM2.5 mass in the contiguous USA from 2001 to 2017. Despite a decrease in PM2.5 concentrations due to air pollution control policies, the decrease in PM-beta was smaller, suggesting that particle radioactivity is more persistent. The ratio of PM-beta to PM2.5 was found to be highest at low PM2.5 levels, indicating that the toxicity per unit mass is higher in these conditions.
AIR QUALITY ATMOSPHERE AND HEALTH
(2023)
Article
Medicine, General & Internal
Emma Dickinson-Craig, Jargalsaikhan Badarch, Suzanne Bartington, Karla Hemming, Rasiah Thayakaran, Rosie Day, Francis Pope, Bataa Chuluunbaatar, Damdindorj Boldbaatar, Chimedsuren Ochir, David Warburton, Graham Neil Thomas, Semira Manaseki-Holland
Summary: Despite a decade of policy actions, Ulaanbaatar's residents continue to be exposed to extreme levels of air pollution, which is a major public health concern. The Mongolian government implemented a raw coal ban in May 2019 to address this issue. This study aims to assess the effectiveness of the coal ban policy on air quality and maternal and child health outcomes.
Review
Green & Sustainable Science & Technology
Heba Akasha, Omid Ghaffarpasand, Francis D. D. Pope
Summary: This narrative review explores the interlinking effects of climate change and air pollution and their impact on human health in the Arabian Peninsula and its Neighbouring Regions (APNR). The APNR is facing direct impacts of climate change such as extreme temperatures, increased dust events, and rising maximum and minimum temperatures. The region is also experiencing significant air pollution, mainly caused by industrial growth, population increase, and motorization. The review highlights the impact of climate change and air pollution on respiratory and cardiovascular health and identifies research gaps in the region, particularly the lack of synthesis between the two factors.
Article
Chemistry, Analytical
Omid Ghaffarpasand, Anwar Almojarkesh, Sophie Morris, Elizabeth Stephens, Alaa Chalabi, Usamah Almojarkesh, Zenah Almojarkesh, Francis D. D. Pope
Summary: Traffic Ear is an acoustic sensor pack that can determine the engine noise of passing vehicles without interrupting traffic flow. It uses sound wave analysis, image processing, and machine learning algorithms to estimate the class and speed of vehicles. The accuracy of vehicle type and fuel estimation using the Traffic Ear sensor is comparable to that of an automatic number plate recognition camera, with uncertainties ranging from 1 to 4%. The study also reveals the reduction in traffic engine noise during rush hours and the difference in noise factors between motorways and other roads.
Article
Meteorology & Atmospheric Sciences
Brian Stacey, Roy M. Harrison, Francis D. Pope
Summary: This study found high concentrations of ultrafine particles (UFP) at Heathrow Airport in London, exceeding the exposure limits set by the World Health Organization (WHO). Departing aircraft, particularly larger ones, were found to have the highest UFP emission rates. The number of passengers carried also influenced emission rates per passenger. Calculated emission rates were higher than literature values due to the inclusion of condensable particles in the measurements. The study suggests that UFP concentrations beyond the airport boundary may also be of concern, and assessing population exposure near airports will become increasingly important in the future.
NPJ CLIMATE AND ATMOSPHERIC SCIENCE
(2023)
Article
Environmental Sciences
Changmin Cho, Hendrik Fuchs, Andreas Hofzumahaus, Frank Holland, William J. Bloss, Birger Bohn, Hans-Peter Dorn, Marvin Glowania, Thorsten Hohaus, Lu Liu, Paul S. Monks, Doreen Niether, Franz Rohrer, Roberto Sommariva, Zhaofeng Tan, Ralf Tillmann, Astrid Kiendler-Scharr, Andreas Wahner, Anna Novelli
Summary: Photochemical processes in ambient air were studied in Germany using the atmospheric simulation chamber SAPHIR. The study analyzed the seasonal and diurnal variation of radical production and destruction pathways. The data collected provided insights into the potential impact of various reactions on radical production and destruction rates.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2023)
Article
Environmental Sciences
Nicole Cowell, Lee Chapman, William Bloss, Deepchandra Srivastava, Suzanne Bartington, Ajit Singh
Summary: This paper investigates the use of a low-cost Internet of Things (IoT) enabled indoor sensor network to assess variations in particulate matter in a lockdown home. The study found that particulate concentrations in multiple rooms of a typical suburban home in the UK exceeded the WHO Global Air Quality Guidelines for both 2021 and 2005, despite relatively low ambient concentrations.
ENVIRONMENTAL SCIENCE-ATMOSPHERES
(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)