Article
Environmental Sciences
Leandro Gomez-Plata, Dayana Agudelo-Castaneda, Margarita Castillo, Elba C. Teixeira
Summary: This paper assesses the spatial variation of EC, OC, major, and trace elements in an industrialized coastal city, allowing identification and tracers of PM10 emission sources. Results indicate that road traffic and industrial activities are the main sources of pollution, highlighting the importance for air quality and environmental protection efforts.
AEROSOL AND AIR QUALITY RESEARCH
(2022)
Article
Environmental Sciences
Nematullah Khodadadi, Arash Amini, Reza Dehbandi
Summary: This study analyzed the elemental concentration, mineralogy, and morphology of street dust samples using various methods. The results showed that Sb, Cu, and Zn were significantly enriched in areas with higher traffic loads, while Sn, Pb, and Cr showed moderate contamination. Geochemical indices and source identification techniques confirmed that these pollutants mainly originated from anthropogenic sources. Monte-Carlo simulations revealed that children are at a higher risk of exposure to these metals through skin contact and ingestion routes.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Sena Uzunpinar, Ilker Balcilar, Ipek Imamoglu, Abdullah Zararsiz, Yakup Kalayci, Gurdal Tuncel
Summary: This study investigated the components of aerosol population at a mountain station (1000 m asl) on the Mediterranean coast of Turkey. Fine and coarse particle samples were collected outside the Marmaris province. Energy dispersive x-ray fluorescence (EDXRF) technique was used to measure fifteen elements. Crustal and anthropogenic elements were associated with coarse particles, mainly due to the coagulation of fine anthropogenic particles on coarse crustal particles. Cluster analysis identified seven trajectory clusters, with two potential dust sources from Sahara and two from local sources. Concentrations of crustal elements were higher in summer, while pollution-derived elements were higher in summer due to wet scavenging. Positive matrix factorization (PMF) analysis identified five factors, including sea salt, crustal, local anthropogenic, oil combustion, and regional combustion factors. Dust transported from North Africa accounted for a significant portion of crustal element concentrations but a smaller portion of PM10 mass concentrations.
ATMOSPHERIC ENVIRONMENT
(2023)
Article
Environmental Sciences
Turki M. Habeebullah, Said Munir, Jahan Zeb, Essam A. Morsy
Summary: This study characterized the emission sources of PM10 by analysing its trace elements and ions contents. The PM10 concentrations in Makkah exceeded air quality standards, and the GAM model and PMF identified the main sources of pollution, including road traffic, industrial emissions, restaurant and dwelling emissions, and fossil fuel combustion.
Article
Geosciences, Multidisciplinary
Ismael L. Schneider, Elba C. Teixeira, Guilherme L. Dotto, Diana Pinto, Cheng-Xue Yang, Luis F. O. Silva
Summary: Air pollution has become a major problem in urban areas due to industrialization and urbanization. A study conducted in the Metropolitan Area of Porto Alegre, Brazil, identified and quantified PM1 concentrations and metal concentrations using Positive Matrix Factorization. The results showed that most of the PM1 and analyzed PM species and elements originated from anthropogenic sources, particularly road traffic, combustion processes, and industrial activities.
GEOSCIENCE FRONTIERS
(2022)
Article
Construction & Building Technology
Shan Huang, Peixian Chen, Kuanyun Hu, Yecheng Qiu, Weiwei Feng, Zhipeng Ren, Xianglian Wang, Ting Huang, Daishe Wu
Summary: The study in central China's Nanchang subway found that PM2.5 levels varied greatly across different stations, subway platforms, and seasons, with the highest contamination occurring during the October holidays. The main sources of PM2.5 pollution were identified as the wheel/rail system, vehicle traffic, and coal combustion.
BUILDING AND ENVIRONMENT
(2021)
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
SamanehSadat Ariapak, Ahmad Jalalian, Naser Honarjoo
Summary: Air pollution, mainly caused by rapid and irregular urbanization and industrialization, is a major challenge in highly populated cities like Tehran. This study investigated the contamination of trace elements in airborne dust in the capital city of Iran. Results showed that the pollution has spread throughout all seasons, with the highest levels observed in the cold seasons. Lead, zinc, cadmium, and arsenic were identified as significant contributors to air pollution in Tehran.
Article
Environmental Sciences
Kai Cheng, Yunhua Chang, Yaqiong Kuang, Rehana Khan, Zhong Zou
Summary: China's unprecedented lockdown in early 2020 provided a natural experiment to study the response of atmospheric pollution to emission reduction. Most trace elements in PM2.5 showed a V-shaped trend during the lockdown period, indicating significant effects of restriction measures. However, some elements like K, Cu, and Ba had unusual origins, suggesting more complex pollution sources.
ENVIRONMENTAL RESEARCH
(2022)
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
Le-Ha T. Vo, Minoru Yoneda, Trung-Dung Nghiem, Yoko Shimada, Dieu-Anh Van, Thu-Hien T. Nguyen, Thuong T. Nguyen
Summary: This study provides comprehensive insights into the chemical composition, source identification, and health risk assessment of indoor particulate matter (PM) in urban areas of Vietnam. The results suggest that indoor PM2.5 is mainly derived from outdoor sources, while indoor PM0.1 is derived from both indoor and outdoor sources. The study also highlights the presence of various trace elements in indoor PM, with differences in concentrations between seasons and dwelling types. Monte Carlo simulation indicates that the intake of TEs in PM2.5 can lead to high carcinogenic risk for people over 60 years old and unacceptable non-carcinogenic risks for all ages, particularly at roadside houses in winter.
ATMOSPHERIC POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Jun Xiao, Lingqing Wang, Ningpan Chai, Ting Liu, Zhangdong Jin, Jorg Rinklebe
Summary: Groundwater quality in the Fen River Basin (FRB) was mainly characterized as bicarbonate-calcium-sodium type water with variations in solute concentrations along the river, influenced by carbonate and silicate weathering, evaporites dissolution, and anthropogenic sources. The seasonal variations of selected trace elements were significant, with differences in pollution sources for heavy metals like Ag, Cd, Ni, Pb, and Tl. Anthropogenic inputs, especially related to coal industries, significantly impacted groundwater quality in the FRB.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Honglei Wang, Qing Miao, Lijuan Shen, Qian Yang, Yezheng Wu, Heng Wei
Summary: This study examines the characteristics of air pollutants in Suzhou during the COVID-19 lockdown, finding that the policy significantly reduced pollutant concentrations and altered the diurnal variations and source contributions of PM2.5.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Sanghee Lee, Changhee Han, Jinho Ahn, Youngcheol Han, Ah-hyung Lee, Seokhyun Ro, Sungmin Hong
Summary: The analysis of PM2.5 samples collected in Seoul, Republic of Korea, revealed that trace elements in PM2.5 are negatively correlated with wind speed and show significant inputs from anthropogenic sources. The dominant source regions of PM2.5 during the sampling period were identified as domestic, Chinese, and mixed domestic/Chinese contributions. Principal component analysis showed that different combustion processes and traffic emissions contribute to specific trace elements in PM2.5. Transitioning from fossil fuels to renewable energy sources can greatly reduce air pollution and create a healthier environment.
ATMOSPHERIC POLLUTION RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Saeed Shojaee Barjoee, Mohammad Azizi, Moslem Yazdani, Elahe Alikhani, Ali Khaledi
Summary: This study used a novel approach to identify and quantify the contribution of geogenic sources along with other potential sources of trace and major elements in road dust. The results showed that geogenic, industrial, and traffic sources were the main contributors to the pollution in the study area. The study concluded that the PMF model provided acceptable results, while the EF, PCFA, and UNMIX models were unsatisfactory.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2023)
Article
Environmental Sciences
Xiangpeng Huang, Xinlei Ge, Dan Liu, Lei Tong, Dongyang Nie, Fuzhen Shen, Mengrong Yang, Yangzhou Wu, Hang Xiao, Huan Yu
Summary: Coastal new particle formation (NPF) can be complex due to the influence of both continental and marine air masses. This study investigated NPF events and particle size distributions at a coastal industrial park in eastern China from 2018 to 2019. The highest nucleation-mode particle number concentration and NPF frequency were observed in continental-marine air masses originating from the North China Plain and traveling along the coastline. The formation rates of 2 nm particles at this coastal site were similar to those reported in urban environments worldwide, likely influenced by local industrial emissions. Neutral new particle formation pathway dominated over ion-mediated pathway at this coastal site. The behavior of appearance time-based growth rates was similar for both neutral and charged particles.
ATMOSPHERIC ENVIRONMENT
(2022)
Article
Environmental Sciences
Junfeng Wang, Xinlei Ge, Collier Sonya, Jianhuai Ye, Yali Lei, Mindong Chen, Qi Zhang
Summary: Research found that high-intensity emission controls implemented in Nanjing and surrounding cities during the 2014 summer Youth Olympic Games had minimal impact on reducing PM1 concentration, but primary precursors like NOx and SO2 decreased by 10-20%. Factors such as low wind speed, high relative humidity, and high ozone concentration likely contribute to the production and accumulation of oxygenated organic aerosol and secondary inorganic aerosols in summer Nanjing.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Yue'e Li, Bin Zhu, Yali Lei, Changping Li, Hongli Wang, Cheng Huang, Minfeng Zhou, Qing Miao, Heng Wei, Yezheng Wu, Xiaohua Zhang, Huangda Ding, Qian Yang, Qiang Zou, Dandan Huang, Xinlei Ge, Junfeng Wang
Summary: This study investigates the seasonal characteristics, formation, and sources of PM2.5 in Suzhou, Yangtze River Delta, China in 2020. Organic matter is found to be the dominant component of PM2.5, with the highest average value in spring. In summer, PM2.5 is mainly produced by the oxidation of volatile organic compounds.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Ruoyuan Lei, Dongyang Nie, Shumeng Zhang, Wanning Yu, Xinlei Ge, Ninghui Song
Summary: This study presents the temporal and spatial characteristics of major air pollutants and their associated health risks in China from 2019 to 2020. The findings show a decrease in the concentrations of PM2.5, PM10, NO2, SO2, CO, and O-3 during this period. The study also reveals the positive correlation between PM2.5 and O-3, the varying role of SO2 in PM2.5 pollution in different seasons, and the impact of NO2 on PM2.5. Additionally, the study highlights the increasing importance of O-3 in air quality evaluation and health risk assessment, as well as the need for coordinated mitigation of multiple pollutants.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Meteorology & Atmospheric Sciences
Yucheng Gao, Hong Liao, Haishan Chen, Bin Zhu, Jianlin Hu, Xinlei Ge, Lei Chen, Jiandong Li
Summary: This study reveals that aerosols have significant impacts on meteorology during severe pollution events in the North China Plain, leading to temperature decrease, reduction in radiative flux, and lower atmosphere boundary layer height. The changes in temperature induced by aerosols are influenced by wind conditions such as speed, direction, and convergence or divergence.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2022)
Article
Engineering, Environmental
Yibei Wan, Chong Xing, Xinyu Wang, Zhaomin Yang, Xiangpeng Huang, Xinlei Ge, Lin Du, Qiongqiong Wang, Huan Yu
Summary: We present a data analysis workflow for nontarget tandem high-resolution mass spectrometry (MS) that allows for the comprehensive classification of functionalized organic compounds in complex atmospheric samples. With a single mass spectrometry run, the workflow provides molecular formula, functional group, and aromaticity information for a large percentage of deprotonated and protonated molecules. The assignment and quantification of functional groups can be used to trace the sources, formation, and aging of organic compounds in the atmosphere.
ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
(2022)
Article
Environmental Sciences
Jingyun Wang, Hao Yue, Shijie Cui, Yunjiang Zhang, Haiwei Li, Junfeng Wang, Xinlei Ge
Summary: This study comprehensively investigated the constituents, sources, and associated health risks of ambient volatile organic compounds (VOCs) in urban Nanjing, China during the autumn of 2020. The results highlight the importance of controlling aromatics and traffic/industrial emissions for the efficient reduction of ozone and PM2.5, and emphasize the need to pay special attention to biogenic emissions when considering the direct health risks of VOCs.
Article
Meteorology & Atmospheric Sciences
Chong Xing, Yibei Wan, Qiongqiong Wang, Shaofei Kong, Xiangpeng Huang, Xinlei Ge, Mingjie Xie, Huan Yu
Summary: By developing a nontarget tandem mass spectrometry experiment workflow, the most probable structures of 100 brown carbon (BrC) chromophores in different atmospheric samples were identified. These chromophores were classified into nine groups, and their distribution and characteristics were analyzed. Gas-particle distribution and diurnal variation of BrC compounds were also measured in the atmosphere.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2023)
Article
Environmental Sciences
Zihe Qian, Qingxiao Meng, Kehong Chen, Zihang Zhang, Hongwei Liang, Han Yang, Xiaolei Huang, Weibin Zhong, Yichen Zhang, Ziqian Wei, Binqian Zhang, Kexin Zhang, Meijuan Chen, Yunjiang Zhang, Xinlei Ge
Summary: Exposure to air pollution is a major environmental risk for human health, and it is significantly influenced by anthropogenic emissions and meteorological conditions. China has implemented clean air actions to reduce anthropogenic emissions, leading to rapid improvement in air quality. Evaluation of anthropogenic emissions and meteorological conditions in a coastal city in eastern China from 2015 to 2022 showed decreasing trends in air pollutants, with dominant contributions from anthropogenic emission reduction.
Article
Environmental Sciences
Yan Chen, Chenjuan Deng, Ting Lei, Junling Li, Chaofan Lian, Yiran Li, Jun Zheng, Jun Zhao, Dongbin Wang, Zhijun Wu, Lin Wang, Lei Li, Hong Li, Jian Gao, Jingkun Jiang, Maofa Ge, Weigang Wang
Summary: By using a custom-made Nanoparticle Chemical Ionization Mass Spectrometer (NPCIMS), we conducted comprehensive field measurements of the size-resolved chemical composition of atmospheric nanoparticles in the size range from 10 to 100 nm. The quantification results showed that CHO organics accounted for around 80% of the newly formed particles in the growth process with diameters from 10 to 25 nm. In contrast to previous observations in urban Mexico, the growth of newly formed particles in urban Beijing was dominated by ammonium, sulfate, and organic components in the size-resolved modes (10-25 nm) during springtime.
ATMOSPHERIC ENVIRONMENT
(2023)
Article
Multidisciplinary Sciences
Yaobin Wang, Xinlei Ge, Qian Lu, Wenjun Bai, Caichao Ye, Zongping Shao, Yunfei Bu
Summary: Researchers successfully improved the performance of zinc-air batteries in the oxygen evolution reaction (OER) and extended the battery's cycle life by introducing hydroxy-silicon proton acceptors.
NATURE COMMUNICATIONS
(2023)
Article
Environmental Sciences
Yibei Wan, Xiangpeng Huang, Chong Xing, Qiongqiong Wang, Xinlei Ge, Huan Yu
Summary: This study presents an important complementary research on coastal new particle formation, reporting for the first time the significant role of organic compounds in the growth of new particles initiated by iodine species. The study also proposes the identity and transformation mechanisms of these organic compounds.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2022)
Article
Environmental Sciences
Shijie Cui, Dan Dan Huang, Yangzhou Wu, Junfeng Wang, Fuzhen Shen, Jiukun Xian, Yunjiang Zhang, Hongli Wang, Cheng Huang, Hong Liao, Xinlei Ge
Summary: Refractory black carbon (rBC) aerosols have significant impacts on air quality and climate change. In this study, laser-only technology was used to measure and compare the properties of rBC particles and their associated coatings with total nonrefractory submicron particles. The results showed that rBC was generally thickly coated, and sulfate tended to condense on non-rBC particles. Additionally, there was a strong association between organic aerosols and rBC, mainly from biomass burning. Moreover, sulfate and secondary organic aerosol were primarily generated through daytime photochemical oxidation.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2022)
Article
Environmental Sciences
Xudon Li, Ye Tao, Longwei Zhu, Shuaishuai Ma, Shipeng Luo, Zhuzi Zhao, Ning Sun, Xinlei Ge, Zhaolian Ye
Summary: This study comprehensively investigated the oxidation reactions of eugenol in the aqueous phase. The results showed that an organic triplet excited state was the most important reactive oxygen species, and the oxidation process produced new substances with light absorption and toxicity.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2022)
Article
Environmental Sciences
Haoran Zhang, Nan Li, Keqin Tang, Hong Liao, Chong Shi, Cheng Huang, Hongli Wang, Song Guo, Min Hu, Xinlei Ge, Mindong Chen, Zhenxin Liu, Huan Yu, Jianlin Hu
Summary: In this study, a new method called Multi-Tracer Estimation Algorithm (MTEA) is developed to identify the primary and secondary components of PM2.5. The effectiveness of MTEA is proven through comparisons with measurements in China and the United States, and the study reveals variations in the composition of PM2.5 in different regions and periods.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2022)
Article
Environmental Sciences
Youjung Jang, Hyejung Hu, Bomi Kim, Younha Kim, Seung-Jick Yoo, Kyungae Jang, Yoon-Kwan Kim, Hyungah Jin, Jung-Hun Woo
Summary: This study quantitatively analyzed the effects of climate and air pollutant reduction policies in Korea, demonstrating that these policies can lead to reductions in greenhouse gas emissions and atmospheric pollutants. The integrated model used in the study provides advantages for evaluating climate and air quality policies, and the findings offer valuable insights and data for policy development and assessment.
ATMOSPHERIC POLLUTION RESEARCH
(2024)
Article
Environmental Sciences
Giuseppe Piras, Fabrizio Pini, Paolo Di Girolamo
Summary: This study assesses the contribution of tires to atmospheric PM10 pollution and finds that tire emissions of PM10 are larger than those from exhaust gases. It suggests the need for specific strategies to reduce tire emissions, such as producing lighter vehicles, using narrower wheels, and promoting public transportation.
ATMOSPHERIC POLLUTION RESEARCH
(2024)
Article
Environmental Sciences
Laura Vallecillos, Rosa Maria Marce, Francesc Borrull
Summary: This study focuses on the implementation of a gas chromatograph-photoionization detection (GC-PID) analyzer for the continuous monitoring of 1,3-butadiene (1,3-BD) levels in urban and industrial atmospheres. The study found that the concentrations of 1,3-BD recorded by the GC-PID analyzer were comparable to those obtained by active sampling, and the concentration peaks showed consistency in values and time slots. In the test of urban atmospheres, the results showed that the concentrations of 1,3-BD were related to prevailing wind direction and activities in the petrochemical zone, while other factors had minor effects on the distribution of this pollutant.
ATMOSPHERIC POLLUTION RESEARCH
(2024)
Article
Environmental Sciences
Ajay Kumar, Arun K. Attri
Summary: This study investigated the temporal profile and composition of PM10 over a 14-month period, and found significant variations between different seasons. The highest concentrations of PM10 were observed in summer and winter, exceeding the national limits. Water-soluble ionic species and n-alkanes contributed to the PM10 mass, with the highest concentration in winter and the lowest in the monsoon season. The ion balance study revealed a strong correlation between anion and cation charge equivalents, indicating their main contribution to PM10. The main sources of PM10 components were identified using statistical correlation, regression, and principal component analysis.
ATMOSPHERIC POLLUTION RESEARCH
(2024)
Article
Environmental Sciences
Jenny Martinez, Yris Olaya Morales, Prashant Kumar
Summary: The impact of bicycle lane designs on cyclist exposure to air pollution is a significant concern. This study found that in the city of Medellin, Colombia, the sections without dedicated bicycle lanes had the highest PM2.5 exposure and inhaled dose. Cyclists had higher PM2.5 exposure and inhaled dose during morning peak hours compared to evening peak and off-peak hours. Segregated cycling lanes on the sidewalk can considerably lower PM2.5 exposure and inhaled doses for cyclists.
ATMOSPHERIC POLLUTION RESEARCH
(2024)
Article
Environmental Sciences
Ying Xu, Qingyang Liu, James J. Schauer
Summary: In this study, a quantitative method using dual-wavelength ultraviolet-visible spectroscopy and Raman spectroscopy was developed to analyze carbon black with amorphous structures and ordering in a graphene sheet. Water extracts of carbon black showed high oxidative potential, and the presence of water-soluble ions enhanced its oxidative potential. These findings can help mitigate health risks associated with nano-carbon black emissions.
ATMOSPHERIC POLLUTION RESEARCH
(2024)
Article
Environmental Sciences
Zhongmin Zhu, Hui Li, Shumin Fan, Wenfa Xu, Ruimin Fang, Boming Liu, Wei Gong
Summary: This study investigates the relationship between temperature inversions (TI) and aerosol vertical distribution in China. The results show that TI frequency, inversion strength (Delta T), and TI height (TIH) exhibit similar seasonal patterns across different regions in China. NC has a significantly higher TI frequency during summer, possibly due to the heating effect of black carbon aerosol. Aerosol optical depth (AOD) above the TIH is higher in spring and summer, indicating the presence of aerosol high-level transport over mainland China during these seasons. The study also finds that a strong inversion can suppress surface aerosols below the TI, but in regions with strong atmospheric stability, aerosols tend to accumulate above the TIH. These findings are valuable for understanding aerosol transport.
ATMOSPHERIC POLLUTION RESEARCH
(2024)
