Article
Engineering, Environmental
Run-Hua Yan, Xing Peng, Weiwei Lin, Ling-Yan He, Feng-Hua Wei, Meng-Xue Tang, Xiao-Feng Huang
Summary: Identifying the health risk of PM2.5 is crucial for urban air pollution control. This study conducted a seven-year continuous observation in Shenzhen, China and found that the annual mean PM2.5 and total concentration of associated metals decreased. However, the total carcinogenic risk in 2020 still exceeded acceptable levels, primarily due to vehicle emissions and the challenge of controlling nonexhaust emissions.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Environmental Sciences
Shujun Bie, Lingxiao Yang, Yan Zhang, Qi Huang, Jingshu Li, Tong Zhao, Xiongfei Zhang, Pengcheng Wang, Wenxing Wang
Summary: Field measurements were conducted near Qingdao Port to characterize particulate air pollutants, assess spatial and seasonal characteristics, and identify contributions from ship traffic emissions. The study found that marine vessel emissions were the dominant contributor to PM2.5 in Qingdao, accounting for 25.05% of the total. The Yellow Sea and Jiaodong Peninsula were identified as the major source regions for PM2.5 in Qingdao, with the Yellow Sea and Bohai Sea being potential source regions for shipping emissions. Further efforts to control shipping emissions should be strengthened not only at Qingdao Port but also in surrounding ports.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Qili Dai, Jiajia Chen, Xuehan Wang, Tianjiao Dai, Yingze Tian, Xiaohui Bi, Guoliang Shi, Jianhui Wu, Baoshuang Liu, Yufen Zhang, Beizhan Yan, Patrick L. Kinney, Yinchang Feng, Philip K. Hopke
Summary: In this study, a long-term (2013-2019) PM2.5 dataset from Tianjin, China was analyzed to understand the sources and trends of PM2.5 pollution. The results showed that the implementation of the Clean Air Actions in China had a significant positive impact on reducing PM2.5 concentrations and improving air quality in Tianjin.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
Vahid Jalali Farahani, Ehsan Soleimanian, Milad Pirhadi, Constantinos Sioutas
Summary: The study investigated long-term trends in redox-active metals and trace elements in central Los Angeles from 2005 to 2018, revealing a general decline in metal concentrations largely influenced by sources such as mineral dust and re-suspended road dust.
ATMOSPHERIC ENVIRONMENT
(2021)
Article
Environmental Sciences
Mingjie Xie, Xinyu Lu, Feng Ding, Wangnan Cui, Yuanyuan Zhang, Wei Feng
Summary: This study investigates the influence of constant source profile presumption during hourly PM2.5 speciation data analysis. The results show that event-based source apportionment performs better in simulating average concentrations and temporal variations. Additionally, using short-term observation data can better reflect immediate changes in primary sources.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Lilai Song, Qili Dai, Yinchang Feng, Philip K. Hopke
Summary: The study utilized a moving window evolving PMF method to identify sources during the Spring and Lantern Festivals in a field campaign in Tianjin, China, and improved the apportionment compared to conventional factor analysis. The composition of sources changed during the COVID-19 pandemic period, and uncertainties in source contribution estimates were evaluated through multiple PMF runs. Wind-dependent sources like dust and distant point sources had larger uncertainties, indicating the method's ability to reflect actual emissions and estimate uncertainties when appropriate data are available.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Jenna R. Krall, Karlin D. Moore, Charlotte Joannidis, Yi-Ching Lee, Anna Z. Pollack, Michelle McCombs, Jonathan Thornburg, Sivaraman Balachandran
Summary: This study investigates the association between commuter characteristics and exposure to traffic-related fine particulate matter air pollution (tr-PM2.5). The findings suggest that commuters traveling during rush hour have higher exposure levels, indicating the need for specific mitigation strategies.
ENVIRONMENTAL RESEARCH
(2021)
Article
Environmental Sciences
Qianqian Xue, Yingze Tian, Yang Wei, Danlin Song, Fengxia Huang, Shanshan Tian, Yinchang Feng
Summary: This study analyzed PM2.5 samples collected over a 1-year period in a Chinese megacity, examining the relationship between organic and inorganic components and the applicability of organic markers in source apportionment. By incorporating different combinations of tracers, the contributions of various pollution sources to PM2.5 were identified.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Meteorology & Atmospheric Sciences
Ishaq Dimeji Sulaymon, Yuanxun Zhang, Philip K. Hopke, Fei Ye, Kangjia Gong, Jianjiong Mao, Jianlin Hu
Summary: In 2021, Nigeria was ranked as one of the most polluted nations in the world by the World Health Organization, indicating deteriorating air quality, particularly in urban areas. This study used the CMAQ-ISAM tool to assess the contributions of various emissions sectors to PM2.5 pollution in Lagos. Residential and industrial sources were found to be the major contributors to PM2.5, with sulfate being the largest fraction. Unfavorable meteorological conditions were also found to enhance PM2.5 concentrations. The findings provide insights for effective emissions control strategies to mitigate future severe pollution episodes in Lagos.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2023)
Article
Environmental Sciences
Wenshuai Li, Yuxuan Qi, Wen Qu, Wenjun Qu, Jinhui Shi, Daizhou Zhang, Yingchen Liu, Yanjing Zhang, Weihang Zhang, Danyang Ren, Yuanyuan Ma, Xinfeng Wang, Li Yi, Lifang Sheng, Yang Zhou
Summary: This study used positive matrix factorization (PMF) to identify the sources of PM2.5 in Qingdao and investigated the sensitivity of the results to different input variables. By comparing different data sets, it was found that including soluble elements in source apportionment can more accurately identify pollutants from different sources.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Wei Wen, Song Shen, Lei Liu, Xin Ma, Ying Wei, Jikang Wang, Yi Xing, Wei Su
Summary: This study used a comprehensive air quality model and particulate matter source apportionment technology to analyze the source apportionment of pollutants in winter and summer in Beijing. It was found that industrial and traffic sources were the two major contributors to O-3 pollution. Regional transport had a significant impact on PM2.5 and O-3 concentrations, with emissions from different regions affecting air pollution in Beijing differently.
Article
Engineering, Environmental
Yu-Cheng Chen, Ruei-Hao Shie, Jun-Jie Zhu, Chin-Yu Hsu
Summary: This study developed a hybrid methodology and applied online measurement to identify the contribution of local inorganic aerosol sources. The results showed that coal combustion and the iron ore and steel industry were the main sources of inorganic aerosol in the City of Taichung.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Water Resources
Weiwei Lin, Hedi Zhang, Yuming Lai, Shuling Zhuang, Qiannan Wei, Shaojie Fu, Dejian Mai, Luan Yuan, Qing Wei, Dingli Yue, Qiansheng Hu
Summary: This study quantified the source-specific ecological risk of PM2.5-bound heavy metals in the Pearl River Delta region and found that vehicle non-exhaust emissions play a significant role in the ecological risk caused by airborne metals.
EXPOSURE AND HEALTH
(2023)
Article
Environmental Sciences
Guangqiang Zhou, Zhongqi Yu, Yuanhao Qu
Summary: The study found that local emissions have a significant impact on PM2.5 concentration in the Yangtze River Delta region, while mutual inner-regional transport among provinces also plays a role. Controlling local emissions and reducing inter-provincial transport can effectively reduce the rate of PM2.5 pollution.
ATMOSPHERIC ENVIRONMENT
(2021)
Article
Environmental Sciences
Wen-Jun Hong, Wen-Jie Dong, Tao-Tao Zhao, Jing-Zhen Zheng, Zhi-Gang Lu, Cheng Ye
Summary: Field measurements were conducted at a container harbor in Ningbo-Zhoushan Port, China to analyze concentrations and sources of PAHs in airborne PM2.5. Gas chromatography-mass spectrometry was used to quantify the PAHs. The study identified five main sources contributing to PAH emissions and calculated the associated lung cancer risks.
AIR QUALITY ATMOSPHERE AND HEALTH
(2023)
Article
Environmental Sciences
Catherine S. Yount, Mark J. Utell, Philip K. Hopke, Sally W. Thurston, Shao Lin, Frederick S. Ling, Yunle Chen, David Chalupa, Xinlei Deng, David Q. Rich
Summary: The study found a lower association between increased UFP concentration and STEMI rates after the introduction of Tier 3 light duty vehicles (2017-2019), while the association between increased SO2 concentration and STEMI rates remained consistent.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Fatemeh Kardel, Shadi Karbalaei Hassan, Hamideh Rashid, Reza Dehbandi, Philip K. Hopke, Sajjad Abbasi
Summary: The magnetic properties of root, bark and leaf of Avicenna marina and sediment in the northern Persian Gulf were determined to assess pollution. The study found that the sources of particles on leaf surfaces can be distinguished by SIRM values and heavy metal content. However, factors such as wind direction, particle size and crown density affect the use of SIRM for biomonitoring. The significant correlation between SIRM and leaf elemental contents indicates that the deposited particles on leaves mainly come from geological sources. The magnetic properties of sediments and mangrove roots are suitable indicators of pollution in aquatic environments.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Analytical
Enoch Kwasi Adotey, Mehdi Amouei Torkmahalleh, Philip K. Hopke, Mannix P. Balanay
Summary: The development of a fluorescent sensor for the detection of toxic pollutants in the environment has attracted much attention. In this study, fluorescent carbon dots (N,Zn-CDs) doped with nitrogen and zinc were synthesized and used as a fluorescence probe for the sensitive detection of hexavalent chromium ions (Cr(VI)). Zinc metal integrated into the N,Zn-CDs played a functional role by creating a coordination site for hydrogen ions displaced after the addition of Cr to the solution. The fluorescence intensity of N,Zn-CDs was effectively quenched by the stepwise addition of Cr(VI), attributing to the internal filter effect. The detection limit achieved for Cr(VI) in fluorescence experiments was 0.47 nmol/L. Real water samples were used to validate the practical application of N,Zn-CDs, showing acceptable recoveries and agreement with ion chromatography-ultraviolet spectrometry results.
Article
Environmental Sciences
Yuhan Fu, Ya Tang, Xi Shu, Philip K. Hopke, Lei He, Qi Ying, Zhonglin Xia, Mengjie Lei, Xue Qiao
Summary: Acid deposition and particulate matter pollution have significantly decreased in China, but the changes in metal(loid) deposition have not been well studied. This study analyzed the deposition of eleven metal(loid)s from 2017 to 2021 at Mount Emei. The results showed that anthropogenic emissions were the main contributors to metal(loid) and acid deposition, with the most significant source regions being the Sichuan Basin, Yunnan-Guizhou Plateau, and Gansu Province. The deposition patterns of metal(loid)s were similar to acid deposition, with higher fluxes in summer and higher concentrations and dry fluxes in winter.
ATMOSPHERIC ENVIRONMENT
(2023)
Article
Environmental Sciences
Ying Wang, Zhicheng Du, Yuqin Zhang, Shirui Chen, Shao Lin, Philip K. Hopke, David Q. Rich, Kai Zhang, Xiaobo X. Romeiko, Xinlei Deng, Yanji Qu, Yu Liu, Ziqiang Lin, Shuming Zhu, Wangjian Zhang, Yuantao Hao
Summary: Using state-of-the-art causal inference approaches, this large cohort study in southern China found a causal relationship between long-term exposure to particulate matter (PM) and chronic obstructive pulmonary disease (COPD) mortality. The detrimental effects were more pronounced among the elderly and inactive participants. Therefore, there is an urgent need for more effective strategies to reduce PM exposure and pay particular attention to vulnerable groups.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Adam D. Point, Bernard S. Crimmins, Thomas M. Holsen, Sujan Fernando, Philip K. Hopke, Costel C. Darie
Summary: This study aims to determine whether interspecies differences in protein composition correspond to the observed variability in bioaccumulation potential of perfluoroalkyl substances (PFAS). The results showed divergent patterns of PFOS serum protein binding between fetal bovine serum and fish sera, suggesting potentially two different binding mechanisms. Proteomics analysis identified similar serum proteins for all fish species, but serum albumin was only found in lake trout, indicating that apolipoproteins are likely the primary PFAA transporters in alewife and deepwater sculpin sera. Tissue distribution analysis provided supporting evidence for interspecies variations in lipid transport and storage, which may contribute to the varied PFAA accumulation in these species.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Yihui Ge, Zhenchun Yang, Yan Lin, Philip K. Hopke, Albert A. Presto, Meng Wang, David Q. Rich, Junfeng Zhang
Summary: This study developed and evaluated two approaches to enhance the extrapolating ability of random forest models in areas with sparse monitoring data. By incorporating low-cost sensor data and using the regression-enhanced random forest method, the models showed improved accuracy and predictive capabilities.
ATMOSPHERIC ENVIRONMENT
(2023)
Article
Environmental Sciences
Xinghua Li, Peng Chen, Yan Xie, Zihao Wang, Philip K. Hopke, Chunyu Xue
Summary: This study investigated air pollutant emissions during different burn phases of seven types of coal burned in a typical household coal-fired heating stove. The study found that the emission factors (EFs) of CO2, SO2, and TWSIIs varied among the high power phase, low power phase, and banked fire phase, while the EFs of CO showed an opposite trend. Moreover, the variation in EFs of PM2.5 and OC in different burn phases depended on the type of coal.
ATMOSPHERIC ENVIRONMENT
(2023)
Article
Environmental Sciences
Yunle Chen, David Q. Rich, Mauro Masiol, Philip K. Hopke
Summary: In the past 20 years, regulatory efforts have been implemented in the United States and specifically in New York State to improve air quality. These efforts have focused on reducing mobile emissions and improving fuel quality, as well as controlling electricity generation to reduce emissions. The overall trend shows a substantial decrease in primary gaseous pollutants and PM2.5, but a recent slowdown in the decline of PM2.5 and an increase in O3 in urban areas.
ATMOSPHERIC ENVIRONMENT
(2023)
Article
Environmental Sciences
Marta Via, Jesus Yus-Diez, Francesco Canonaco, Jean-Eudes Petit, Philip Hopke, Cristina Reche, Marco Pandolfi, Matic Ivancic, Martin Rigler, Andre S. H. Prevot, Xavier Querol, Andres Alastuey, Maria Cruz Minguillon
Summary: In this study, the multi-time resolution (MTR) Positive Matrix Factorization (PMF) technique was applied to identify eight PM1 pollution sources in Barcelona, Spain, by combining high and low time resolution data. This approach proved to be more accurate and effective compared to conventional methods.
ENVIRONMENT INTERNATIONAL
(2023)
Article
Environmental Sciences
Gonghua Wu, Shenghao Wang, Zini Jiang, Philip K. Hopke, David Q. Rich, Liang Chen, Shao Lin, Kai Zhang, Xiaobo Xue Romeiko, Yanji Qu, Xinlei Deng, Ziqiang Lin, Jianpeng Xiao, Wangjian Zhang, Yuantao Hao
Summary: This study fills important gaps in our understanding of the spatial-temporal clustering patterns of tuberculosis mortality in China and provides evidence for its causal links with long-term PM2.5 exposure. The research findings show a significant association between long-term PM2.5 exposure and pulmonary TB mortality, with higher risk in certain socioeconomic groups.
ENVIRONMENTAL RESEARCH LETTERS
(2023)
Article
Engineering, Environmental
Peng Chen, Youxuan Li, Yangmei Zhang, Chunyu Xue, Philip K. Hopke, Xinghua Li
Summary: Residential biomass combustion in developing countries produces significant primary particulate matter emissions. This study investigated the dynamic changes of emitted PM chemical composition from a typical improved stove burning wood and crop straw in China. The results showed higher emissions of pollutants, including organic aerosol and polycyclic aromatic hydrocarbons, during the flaming stage of combustion. The study also explored the role of PAHs as intermediate products in the conversion of organic aerosol to black carbon.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Hong-Hua Huang, Jian-Fei Luo, Feng Gan, Philip K. Hopke
Summary: Small data sets make it difficult to develop calibration models using deep neural networks due to the risk of overfitting. We developed two deep neural network architectures, U-Net and the attention mechanism, by adapting existing architectures and using 1D convolutional layers instead of fully connected layers. These revised network architectures were applied to three publicly available data sets, producing satisfactory results for general quantitative analysis and impressive results for calibration transfer. This demonstrates the potential of revising successful network architectures in exploring the application of deep neural networks in analytical chemistry.
APPLIED SCIENCES-BASEL
(2023)
Article
Meteorology & Atmospheric Sciences
Ishaq Dimeji Sulaymon, Yuanxun Zhang, Philip K. Hopke, Fei Ye, Kangjia Gong, Jianjiong Mao, Jianlin Hu
Summary: In 2021, Nigeria was ranked as one of the most polluted nations in the world by the World Health Organization, indicating deteriorating air quality, particularly in urban areas. This study used the CMAQ-ISAM tool to assess the contributions of various emissions sectors to PM2.5 pollution in Lagos. Residential and industrial sources were found to be the major contributors to PM2.5, with sulfate being the largest fraction. Unfavorable meteorological conditions were also found to enhance PM2.5 concentrations. The findings provide insights for effective emissions control strategies to mitigate future severe pollution episodes in Lagos.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2023)
Article
Environmental Sciences
I. Stanimirova, David Q. Rich, Armistead G. Russell, P. K. Hopke
Summary: This study evaluates the effects of air quality control policies implemented in California from 2005 to 2019 on air quality at two sampling sites in the Los Angeles Basin. The findings indicate a significant decrease in contributions of secondary nitrate and secondary sulfate to ambient PM2.5 concentrations due to the implementation of California programs. The study also identifies residual oil and traffic as the main sources of fuel combustion in the Los Angeles area, while separate gasoline and diesel vehicle sources were identified in Rubidoux. Additionally, wildfires, mineral dust transport, and storms were found to contribute to poor air quality.
ENVIRONMENTAL POLLUTION
(2024)
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)
