Article
Meteorology & Atmospheric Sciences
Otavio Nunes dos Santos, Leonardo Hoinaski
Summary: This study introduces a new 3D-PSCF-CONC method that can more accurately identify local and regional sources of air pollution, reducing the overcontribution of less polluted and high precipitation areas.
ATMOSPHERIC RESEARCH
(2021)
Article
Green & Sustainable Science & Technology
Ju Wang, Yue Zhong, Zhuoqiong Li, Chunsheng Fang
Summary: The atmospheric environmental problems caused by the development of heavy industry in the central Liaoning urban agglomeration in China are particularly prominent. This study analyzed the temporal and spatial pollution characteristics of PM2.5 and ozone concentrations in the region from 2015 to 2020, using trajectory clustering, potential source contribution (PSCF), and concentration weighted trajectory (CWT) analysis. The results showed a decreasing trend in PM2.5 concentrations, with the lowest concentration in 2018. Ozone pollution was highest in summer. The research also highlighted the importance of regional transmission of pollutants and the need for joint prevention and control of air pollution among regions.
Article
Meteorology & Atmospheric Sciences
Konstantinos Dimitriou, Georgios Grivas, Eleni Liakakou, Evangelos Gerasopoulos, Nikolaos Mihalopoulos
Summary: A three-dimensional variant of the Potential Source Contribution Function (PSCF) model was used to identify source areas and altitudinal atmospheric layers associated with PM10 exceedances in Athens. The study revealed that direct Saharan dust intrusions from North Africa and regional combustion sources from the Balkans and Northern Greece were significant contributors to PM10 exceedances in different seasons. Additionally, winter PM10 exceedances were linked to northerly airflows and stagnant local emissions in Athens.
ATMOSPHERIC RESEARCH
(2021)
Article
Green & Sustainable Science & Technology
Xiaowei Song, Yongpei Hao
Summary: This study investigates the spatial and temporal variations of near-ground ozone pollution in Xi'an City, China, and its relationship with meteorological factors, transport pathways, and potential source distribution. The results show that Xi'an City has been experiencing increasingly severe ozone pollution in recent years, with summer and high temperature conditions being favorable for high-concentration pollution. Additionally, the emissions of air pollutants from neighboring regions also influence ozone pollution in Xi'an City.
Article
Environmental Sciences
I. Berriban, M. Azahra, E. Chham, M. A. Ferro-Garcia, A. Milena-Perez, A. Nouayti, J. A. G. Orza, E. Brattich, L. Tositti, F. Pinero-Garcia, T. El Bardouni, H. Ziani, H. El Yaakoubi, M. El Barbari
Summary: The research focused on studying the preferred source regions and pathways of air masses with high particulate concentrations affecting the activity concentrations of Be-7 and Pb-210 aerosols in the Granada atmosphere. The main source areas of Be-7 were found to be located in the Atlantic coast of southern Morocco and Northern Africa, while southern France and the Algerian desert were identified as the main region sources of Pb-210. Moreover, the Mediterranean Basin was suggested as a strong source region for both Be-7 and Pb-210.
JOURNAL OF ENVIRONMENTAL RADIOACTIVITY
(2022)
Article
Environmental Sciences
Alok Sagar Gautam, S. N. Tripathi, Abhishek Joshi, Anil Kumar Mandariya, Karan Singh, Gaurav Mishra, Sanjeev Kumar, R. C. Ramola
Summary: A Cloud Condensation Nuclei Counter was deployed in the pristine Himalayan region for the first time to measure CCN concentrations. The study revealed significant variations in CCN concentrations under different weather conditions, possibly influenced by factors such as air mass transport, convection process, anthropogenic emissions, and biomass burning.
ATMOSPHERIC ENVIRONMENT
(2021)
Article
Environmental Sciences
Wasim Javed, Bing Guo
Summary: The study in Qatar revealed that the average concentrations of PM2.5 and PM10 greatly exceeded WHO air quality thresholds, with major sources being secondary inorganic aerosols, vehicular emissions, and mineral dust. Wind direction analysis showed that both local and regional sources impact Qatar's air quality.
ATMOSPHERIC POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Sheng-Han Lee, Wei-Chen Tseng, Zhi-Yi Du, Wan-Yu Lin, Mei-Huei Chen, Ching-Chun Lin, Guang-Wen Lien, Hao-Jan Liang, Hui-Ju Wen, Yue-Leon Guo, Pau-Chung Chen, Ching-Yu Lin
Summary: This study evaluated the impact of PFASs exposure on lipid changes in children, finding that children exposed to different levels of specific PFASs exhibited different lipid patterns, potentially related to hepatic lipid metabolism, metabolic disorders, and PFASs-membrane interactions.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Zakariyya Uba Zango, Baranitharan Ethiraj, Fahad S. Al-Mubaddel, Mohammad Mahtab Alam, Muhammad Abubakar Lawal, Haliru Aivada Kadir, Kuan Shiong Khoo, Zaharaddeen Nasiru Garba, Fahad Usman, Muttaqa Uba Zango, Jun Wei Lim
Summary: This study summarizes the latest advancements in solid-phase extraction techniques for the trace-level analysis of PFCAs from water matrices. The methods have been highlighted for their ease of applications, low cost, robustness, low solvents consumption, high pre-concentration factors, better extraction efficiency, good selectivity, and recovery of the analytes. The article also demonstrates the effectiveness of some porous materials for the adsorptive removal of the PFCAs from water matrices, and discusses the mechanisms, success, and limitations of the SPE/adsorption techniques.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Xiaojing Zeng, Ting Chen, Yidan Cui, Jian Zhao, Qian Chen, Zhangsheng Yu, Yongjun Zhang, Lianshu Han, Yan Chen, Jun Zhang
Summary: This study investigated the potential mediating role of neonatal metabolites in the relationship between prenatal PFAS exposure and childhood adiposity trajectories. It found that prenatal PFAS exposure is a risk factor for persistent growth in BMI z-score in early childhood, and the alteration of neonatal acylcarnitines suggests a potential molecular pathway.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Oddny Ragnarsdottir, Mohamed Abou-Elwafa Abdallah, Stuart Harrad
Summary: Per- and polyfluoroalkyl substances (PFAS), a class of chemicals produced and used since the 1950s, have been linked to various health effects in humans even at low levels of exposure. Human biomonitoring data shows widespread exposure to PFAS across all age groups. While PFAS have been found in a wide range of products, little is known about dermal uptake as a possible route for human exposure.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Louise Dalsager, Nikolas Christensen, Ulrich Halekoh, Clara Amalie Gade Timmermann, Flemming Nielsen, Henriette Boye Kyhl, Steffen Husby, Philippe Grandjean, Tina Kold Jensen, Helle Raun Andersen
Summary: This study investigated the association between maternal serum concentrations of five PFASs during pregnancy and the child's rate of hospitalization due to common infectious diseases between birth and 4 years of age. It found that a doubling in maternal PFOS concentration was associated with an increased risk of hospitalization due to any infection, and doubling of PFOA or PFOS increased the risk of lower respiratory tract infections.
ENVIRONMENT INTERNATIONAL
(2021)
Article
Medicine, General & Internal
Yu Zhang, Vicente Mustieles, Qi Sun, Brent Coull, Thomas McElrath, Sheryl L. Rifas-Shiman, Leah Martin, Yang Sun, Yi-Xin Wang, Emily Oken, Andres Cardenas, Carmen Messerlian
Summary: The study suggests that prenatal folate status may modify the negative associations between pregnancy PFAS concentrations and adverse birth outcomes.
Article
Pediatrics
Arianna Aceti, Andrea Barbarossa, Teresa Gazzotti, Elisa Zironi, Giampiero Pagliuca, Francesca Vitali, Isadora Beghetti, Luigi Corvaglia
Summary: The exposure of preterm infants to PFASs through HM feeding may exceed reference values for older and healthier infants, requiring further investigation into the risks and ways to reduce exposure through maternal exposure and HM feeding.
EUROPEAN JOURNAL OF PEDIATRICS
(2021)
Article
Engineering, Environmental
Carrie A. McDonough, Wenting Li, Heather N. Bischel, Amila O. De Silva, Jamie C. DeWitt
Summary: Assessing the health risks associated with PFASs is a complex problem that requires collaboration among scientists, risk assessors, and regulators. One pressing question is the significance of pre-PFAAs, which degrade to persistent perfluoroalkyl acids, in human exposure and health risk assessment. This article provides an overview of recent progress and recommendations to broaden the understanding of PFAS exposure by considering the pre-PFAA subclass.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Environmental
Danyang Tao, Kai Zhang, Shaopeng Xu, Huiju Lin, Yuan Liu, Jingliang Kang, Tszewai Yim, John P. Giesy, Kenneth M. Y. Leung
Summary: Household tumble dryers are potential sources of air contamination by microfibers, with each use releasing hundreds of thousands of microfibers. Both polyester and cotton textiles can generate microfibers, but the abundance of polyester microfibers is directly related to the clothing mass.
ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
(2022)
Editorial Material
Environmental Sciences
Jerzy Falandysz, Begona Jimenez, Sachi Taniyasu
Article
Engineering, Environmental
Qi Wang, Yuefei Ruan, Linjie Jin, Huiju Lin, Meng Yan, Jiarui Gu, Calista N. T. Yuen, Kenneth M. Y. Leung, Paul K. S. Lam
Summary: Restrictions on legacy PFASs have led to the use of emerging PFASs, but their toxicokinetics have rarely been studied. In this study, the tissue-specific uptake and depuration kinetics of PFECHS and Cl-PFESAs were investigated in marine medaka, revealing their accumulation in different tissues and low transformation rates to their hydrogen-substituted analogues.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Environmental
Yaru Cao, Huiju Lin, Kai Zhang, Shaopeng Xu, Meng Yan, Kenneth M. Y. Leung, Paul K. S. Lam
Summary: Phthalate esters (PAEs), commonly used additives in plastics, have raised global concern due to their widespread contamination in aquatic environments. This study investigated the release behaviors of PAEs from different types of plastic products, finding that the leaching potentials were plastic type-specific. The highest concentrations of PAEs were released from polyvinyl chloride (PVC) pencil case, while the lowest amounts were released from polypropylene (PP), polyethylene terephthalate (PET), and shampoo bottle.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Yaru Cao, Jing Li, Rongben Wu, Huiju Lin, Jia-Yong Lao, Yuefei Ruan, Kai Zhang, Jiaxue Wu, Kenneth M. Y. Leung, Paul K. S. Lam
Summary: This study investigated the occurrence and distribution of 15 phthalate esters (PAEs) in seawater and sediment from the northern South China Sea (NSCS) for the first time. The results showed high concentrations of PAEs in the region, with dibutyl phthalate (DBP) and bis(2-ethylhexyl) phthalate (DEHP) being the predominant congeners in seawater and diisobutyl phthalate (DiBP) in sediment. The findings provide valuable information for implementing effective control measures and remediation strategies for PAEs contamination in the region.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Heesoo Eun, Eriko Yamazaki, Yu Pan, Sachi Taniyasu, Kosuke Noborio, Nobuyoshi Yamashita
Summary: This study analyzed the properties and migration behavior of potential emerging contaminants (PFAS) in a rice paddy lysimeter, and found that their distribution in soil is influenced by soil properties and irrigation processes.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2022)
Article
Environmental Sciences
Xian Qin, Huiju Lin, Yaru Cao, Rudolf Shiu Sun Wu, Keng Po Lai, Richard Yuen Chong Kong
Summary: Exposure to 17 alpha-ethinylestradiol (EE2) in fish can result in developmental toxicity, including growth retardation, decreased heart rate, delayed eye pigmentation, reduced hatching rate, and impaired larval locomotion. Transcriptional analysis revealed that these impairments are controlled by estrogen receptor and related to eye structure, neuronal and synaptic structure, and behavior. Key factors identified, such as PRKAA2, APOB, EPHB2, OXTR, NR2E3, and POU4F2, could serve as biomarkers for assessing EE2-induced embryo developmental toxicity.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Eriko Yamazaki, Heesoo Eun, Sachi Taniyasu, Toshihiro Sakamoto, Nobuyasu Hanari, Hideyuki Inui, Rongben Wu, Huiju Lin, Paul K. S. Lam, Jerzy Falandysz, Nobuyoshi Yamashita
Summary: This study investigated the accumulation of PFAS in rice and found that PFAS exists in atmospheric particles, rainwater, irrigated water, soil, and rice plants. PFAS primarily enter the paddy field through atmospheric particles, and rainfall is a significant source of irrigation water contamination. Although there were no major differences in the residual PFAS trends in different rice varieties, the distribution of PFAS in soil, air, and rainwater varied. These findings are important for the daily exposure assessment of PFAS in rice consumption by different populations.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Jia-Yong Lao, Shaopeng Xu, Kai Zhang, Huiju Lin, Yaru Cao, Rongben Wu, Danyang Tao, Yuefei Ruan, Kenneth Mei Yee Leung, Paul K. S. Lam
Summary: This study analyzed the concentrations of organophosphate esters (OPEs) and their transformation products (TPs) in urban stormwater and wastewater in Hong Kong. The results showed that OPEs and TPs have ecological impacts, and TPs may cause endocrine disruption in marine organisms. A novel framework integrating various factors has been proposed to assess and regulate the risks of these emerging contaminants in urban environments.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Yilin Shu, Qi Wang, Pei Hong, Yuefei Ruan, Huiju Lin, Jing Xu, Huijuan Zhang, Shuaitao Deng, Hailong Wu, Lianguo Chen, Kenneth Mei Yee Leung
Summary: This study investigated the tissue-specific bioaccumulation characteristics of PFAS in Chinese toads collected from Chaohu Lake in China. The highest PFAS concentrations were found in the liver of the toads, followed by gonads and intestine. Two emerging PFAS, HFPO-DA and 6:2 H-PFESA, were reported for the first time in amphibians. Males had higher gonad PFAS levels than females, and estradiol levels in gonads increased with certain PFAS concentrations, indicating potential estrogenic effects of PFAS in the toads, especially in males.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Yuting Zhan, Qianqian Jin, Huiju Lin, Danyang Tao, Lok Yung Law, Jiaji Sun, Yuhe He
Summary: This study provides the first evidence of LCMs contamination in municipal wastewater, possibly arising from routine electronic devices usage. Despite the significant removal of LCMs through WWTP, the remaining LCMs in final effluent could potentially impact the aquatic receiving ecosystem.
Review
Chemistry, Analytical
Qi Wang, Yuefei Ruan, Calista N. T. Yuen, Huiju Lin, Leo W. Y. Yeung, Kenneth M. Y. Leung, Paul K. S. Lam
Summary: This review summarizes the advantages of three target analysis supplementary approaches for tracking PFASs in the aquatic environment and proposes considering more targets and developing comprehensive sample treatment strategies. It also suggests including PFASs screened via HRMS in mass balance analysis.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2023)
