Article
Chemistry, Physical
Marcin Czapla, Piotr Skurski
Summary: The conversion of perfluorinated carboxylic acids and perfluorinated sulfonic acids into perfluoroalkenes in aqueous solutions is studied using electronic structure methods. It is shown that aluminum trifluoride can enable these conversions at room temperature within a short time. The mechanism involves the extraction of F- from either the carboxylic or sulfonic acid anions by AlF3, resulting in the formation of a stable AlF4- anion and perfluoroalkene compounds accompanied by CO2 or SO3 loss.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Engineering, Environmental
Ki Yong Kim, Mlamuli Ndabambi, Sol Choi, Jeong-Eun Oh
Summary: The study determined the concentrations of 28 novel and legacy PFASs in wastewater from 77 industrial plants in Korea's largest industrial complex. Only 19 and nine target PFASs were detected in untreated industrial wastewater and river water, respectively. Efforts to reduce the use of Perfluorooctane sulfonate (PFOS) have resulted in its replacement by PFASs with fewer than seven carbon atoms in both industrial wastewater and river water.
Article
Engineering, Environmental
Yunqiao Zhou, Bin Shi, Ran Bi, Xiaoping Wang, Lu Yang, Tieyu Wang, Jing Meng
Summary: Increased anthropogenic activities have caused contamination of PFASs in lakes worldwide. This study conducted research in Baiyangdian Lake, China, and found that the average concentrations of PFASs have increased significantly. The water phase is the primary transport path for PFASs, and the exchange flux between water and sediment is high.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Melvin S. Samuel, Mingwei Shang, Junjie Niu
Summary: The developed f-TMO hybrid photocatalyst shows efficient removal of various PFAS contaminants in water with high adsorption capacity and defluorination rate, making it promising for applications in residential and industrial water systems.
Article
Engineering, Environmental
Robin E. Dodson, Katherine E. Manz, Shaunessey R. Burks, Richa Gairola, Nina F. Lee, Yun Liu, Kurt D. Pennell, Erica D. Walker, Joseph M. Braun
Summary: The study investigated the impact of an air filtration method, CR Box, on indoor air concentrations of SVOCs during the COVID-19 pandemic. The deployment of CR Boxes in an office building resulted in lower concentrations of several PFAS and phthalates. However, there were also increases in the concentrations of certain PFAS and phthalates, although these increases were not statistically significant. The results suggest that CR Boxes can reduce exposure to certain SVOCs but may contribute to increased sound levels.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Environmental Sciences
Shigehisa Uchiyama, Mayumi Noguchi, Mayu Hishiki, Moka Shimizu, Naoki Kunugita, Tomohiko Isobe, Shoji F. Nakayama
Summary: This study monitored the seasonal variations of chemical compounds in indoor and outdoor air, as well as personal exposure to these chemicals, over a period of six years. The results showed that many chemical compounds exhibited higher concentrations in summer and lower concentrations in winter, with formaldehyde, nonanal, 2-ethyl-1-hexanol, 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate, and ammonia concentrations showing remarkable seasonal variations. The study also found that personal exposure concentrations could be categorized into four patterns based on their sources of influence.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Review
Environmental Sciences
Sipra Nayak, Gunanidhi Sahoo, Ipsita Iswari Das, Aman Kumar Mohanty, Rajesh Kumar, Lakshman Sahoo, Jitendra Kumar Sundaray
Summary: Poly- and perfluoroalkyl substances (PFASs) are anthropogenic chemicals with a fluorinated carbon chain and have gained global attention due to their durability, bioaccumulation potential, and negative impacts on living organisms. The negative impacts of PFASs on aquatic ecosystems are concerning due to their widespread use and constant leakage into the water environment. PFASs can alter the bioaccumulation and toxicity of certain substances, causing a variety of negative consequences in aquatic organisms. PFAS bioaccumulation affects the composition of the intestinal microbiota, which is related to the well-being of the host. PFASs act as endocrine disruptors and can result in dysbiosis of gut microbes and other health repercussions.
Article
Engineering, Environmental
Charlie J. Liu, Conner C. Murray, R. Eric Marshall, Timothy J. Strathmann, Christopher Bellona
Summary: This study evaluated and compared the adsorption of PFASs in contaminated groundwater using granular activated carbon (GAC) and anion exchange resins (AER). The results showed that AERs adsorbed 6-7 times more PFASs than GAC based on media mass or volume. However, when considering the same flowrate, AERs performed similarly to GAC for PFCAs and better for PFSAs. The study also assessed the operational costs of both treatment methods and found that AER and GAC could have similar costs if the ratio of AER to GAC unit media costs was around 3.5.
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2022)
Article
Environmental Sciences
Yaghoub Hajizadeh, Hamidreza Pourzamani, Karim Ebrahimpour, Afsane Chavoshani, Behzad Rahimi
Summary: This study investigated the concentrations of parabens in indoor and outdoor air in different locations and age groups in Isfahan, Iran, showing significant differences in the concentrations and the lowest levels detected in green spaces and barbershops. Infants and children were found to be at the highest risk of exposure to indoor air. These results can serve as a basis for future indoor and outdoor air quality studies.
ATMOSPHERIC POLLUTION RESEARCH
(2021)
Article
Engineering, Environmental
Bo Sha, Jana H. Johansson, Jonathan P. Benskin, Ian T. Cousins, Matthew E. Salter
Summary: Perfluoroalkyl acids (PFAAs) are enriched in sea spray aerosols (SSA) with a strong linear relationship to water concentration. The particle surface-area-to-volume ratio is a key predictor of PFAAs enrichment in supermicron particles, while the differences in enrichment behaviors between submicron and supermicron particles are likely due to different production mechanisms. Seawater concentrations of PFAAs have little influence on enrichment factors (EFs) in SSA emissions.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Environmental
Maya E. Morales-McDevitt, Jitka Becanova, Arlene Blum, Thomas A. Bruton, Simon Vojta, Melissa Woodward, Rainer Lohmann
Summary: The study reveals the widespread presence of volatile PFAS, specifically fluorotelomer alcohols, in indoor environments. In Californian kindergarten classrooms, 6:2 FTOH was the dominant species with concentrations ranging from 9 to 600 ng m(-3), followed by 8:2 FTOH. Concentrations of volatile PFAS in air, carpet, and dust were closely related, indicating carpets and dust as major sources of FTOHs in air.
ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
(2021)
Article
Engineering, Environmental
Hao Guo, Junwei Zhang, Lu Elfa Peng, Xianhui Li, Yiliang Chen, Zhikan Yao, Yiang Fan, Kaimin Shih, Chuyang Y. Tang
Summary: This study introduces a highly porous amine-functionalized membrane for rapid capture of GenX and other anionic PFASs from contaminated water, with near-zero energy consumption. The membrane demonstrated high water permeability and efficient capture of pollutants, with a promising strategy for sustainable control and remediation.
ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
(2021)
Review
Environmental Sciences
Jacob Mastin, Tom Harner, Jasmin K. Schuster, Lauren South
Summary: This review summarizes the latest scientific literature on unintentionally produced polychlorinated biphenyls (UP-PCBs), including their formation pathways, global occurrence in air, and properties related to atmospheric persistence and transport. Recent research has shown that processes such as dye/pigment manufacturing and industrial thermal processes have led to global emissions and detection of UP-PCBs. It is concerning that UP-PCBs contribute a significant proportion to total PCBs and their contribution is increasing. The review recommends including UP-PCBs as indicator congeners in air monitoring and research programs, using PUF disk passive air samplers for generating new information on global air, and identifying and quantifying ongoing emission sources of UP-PCBs to air.
ATMOSPHERIC POLLUTION RESEARCH
(2022)
Article
Engineering, Chemical
Lingyue Zhang, Chu Tang, Dongbei Yue
Summary: This study proposes a method for efficiently removing PFASs from wastewater using excess sludge from an on-site leachate treatment plant. The results show that denitrifying sludge has higher hydrophobicity and specific surface area, enhancing the adsorption capacity of PFASs. Kinetic and isotherm simulations indicate that the adsorption process is efficient and controlled by surface and intraparticle diffusion. The findings of this study contribute to understanding the recycling mechanisms of excess sludge.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Food Science & Technology
Maria Nobile, Francesco Arioli, Dalia Curci, Claudia Ancillotti, Giulia Scanavini, Luca Maria Chiesa, Sara Panseri
Summary: This study analyzed the presence of PFASs in eggs produced in a PFASs-contaminated area in Northern Italy. The highest concentrations of PFASs were found in eggs from Veneto and Emilia Romagna, but were still well below the maximum limit set by the European Union. Therefore, egg consumption does not pose a risk to Italian consumers.
Article
Environmental Sciences
Doo-Hyeon Chae, In-Sung Kim, Seung-Kyu Kim, Young Kyoung Song, Won Joon Shim
ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
(2015)
Article
Environmental Sciences
In-Sung Kim, Doo-Hyeon Chae, Seung-Kyu Kim, SooBong Choi, Seung-Bum Woo
ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
(2015)
Article
Environmental Sciences
Xiangai Zhao, Seung-Kyu Kim, Weihong Zhu, Narayanan Kannan, Donghao Li
Article
Nutrition & Dietetics
Jin Hee Kim, Hye Yin Park, Jung Dae Jeon, Younglim Kho, Seung-Kyu Kim, Min-Seon Park, Yun-Chul Hong
EUROPEAN JOURNAL OF NUTRITION
(2016)
Article
Environmental Sciences
Seung-Kyu Kim, Doo Hyun Chae
MARINE POLLUTION BULLETIN
(2016)
Article
Environmental Sciences
Hee Seok Kim, Seung-Kyu Kim, Jong-Guk Kim, Dong Soo Lee
SCIENCE OF THE TOTAL ENVIRONMENT
(2016)
Article
Environmental Sciences
Seung-Kyu Kim, Kyoung-Soo Kim, SangHee Hong
SCIENCE OF THE TOTAL ENVIRONMENT
(2016)
Article
Environmental Sciences
Zhexi Tian, Seung-Kyu Kim, Mahiba Shoeib, Jeong-Eun Oh, Jong-Eun Park
SCIENCE OF THE TOTAL ENVIRONMENT
(2016)
Article
Marine & Freshwater Biology
Hwang Lee, Sein Chang, Seung-Kyu Kim, Jung-Hwan Kwon
OCEAN SCIENCE JOURNAL
(2017)
Article
Engineering, Environmental
Jin-Ju Heo, Ji-Woo Lee, Seung-Kyu Kim, Jeong-Eun Oh
JOURNAL OF HAZARDOUS MATERIALS
(2014)
Article
Engineering, Environmental
Ji-Su Kim, Hee-Jee Lee, Seung-Kyu Kim, Hyun-Jung Kim
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2018)
Article
Environmental Sciences
Seung-Kyu Kim, Chang-Keun Kang
SCIENCE OF THE TOTAL ENVIRONMENT
(2019)
Article
Engineering, Environmental
Seung-Kyu Kim, Hee-Jee Lee, Ji-Su Kim, Sung-Ho Kang, Eun-Jin Yang, Kyoung-Ho Cho, Zhexi Tian, Anthony Andrady
Summary: The study revealed that the plastic particles trapped in Arctic sea ice are comparable to those in other Arctic basins, suggesting a strong linkage between the Western Arctic Ocean and the Arctic Central Basin. Additionally, it highlighted the role of the Western Arctic Ocean ice zone as a sink for global microplastics and a potential source for Arctic microplastics.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Multidisciplinary Sciences
Seung-Kyu Kim, Ji-Su Kim, So-Young Kim, Nan-Seon Song, Hyoung Sul La, Eun Jin Yang
Summary: In order to explain the unexpectedly low plastic loads at the ocean's surface, unidentified sinks for plastic waste must be located. This study examines the microplastic budget in the western Arctic Ocean and finds that Arctic sediments function as important sinks for missing microplastics. The study also suggests that the slower increase in plastic burial compared to plastic production indicates more pollution in the Arctic in the future.
Article
Environmental Sciences
Bum Gun Kwon, Keiji Amamiya, Hideto Sato, Seon-Yong Chung, Yoichi Kodera, Seung-Kyu Kim, Eung Jae Lee, Katsuhiko Saido
Review
Environmental Sciences
Attila Csaba Kondor, Anna Viktoria Vancsik, Laszlo Bauer, Lili Szabo, Zoltan Szalai, Gergely Jakab, Gabor Maasz, Marta Pedrosa, Maria Jose Sampaio, Ana Rita Lado Ribeiro
Summary: This review provides a critical overview of research on the removal efficiency of priority substances and compounds of emerging concern through bank filtration, discussing influencing factors and future challenges. The findings show that the efficiency of bank filtration is influenced by multiple factors and varies for different substances.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Xinyan Wang, Shuai Zhang, Huihui Yan, Zhao Ma, Yunshan Zhang, Haining Luo, Xueli Yang
Summary: This study investigated the association between ambient PM2.5, O3 pollution, and ovarian reserve in reproductive-aged Chinese women. The results showed that increased exposure to PM2.5 and O3 was associated with decreased AMH levels, indicating reduced ovarian reserve. Notably, the effects of O3 exposure on ovarian reserve were different from those of PM2.5 exposure.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Tingting Ma, Yanjuan Ding, Fengjiao Xu, Chen Zhang, Min Zhou, Ya Tang, Yanrong Chen, Yating Wen, Rufei Chen, Bin Tang, Shigui Wang
Summary: The dragonfly species Orthetrum albistylum can accumulate heavy metals, and its heat shock protein genes have the potential to serve as biomarkers for monitoring environmental pollutants.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Naoto Ishiwaka, Koya Hashimoto, Masayoshi K. Hiraiwa, Francisco Sanchez-Bayo, Taku Kadoya, Daisuke Hayasaka
Summary: Systemic insecticides and rising temperatures have combined effects on the abundance of Odonata nymphs in paddy fields. The standalone effect of insecticide exposure decreased the Odonata community, while nymphs decreased synergistically with temperature rise in paddy water. However, the impacts of each stressor alone varied among species.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Marco Vecchiato, Carlo Barbante, Elena Barbaro, Francois Burgay, Warren R. L. Cairns, Alice Callegaro, David Cappelletti, Federico Dallo, Marianna D'Amico, Matteo Feltracco, Jean-Charles Gallet, Andrea Gambaro, Catherine Larose, Niccolo Maffezzoli, Mauro Mazzola, Ivan Sartorato, Federico Scoto, Clara Turetta, Massimiliano Varde, Zhiyong Xie, Andrea Spolaor
Summary: The Arctic region is facing contamination from long-range pollution and local human activities. Polycyclic Aromatic Hydrocarbons (PAHs) are used as environmental indicators for emission, transport, and deposition processes. Research conducted in the Arctic surface snow in Ny-Ålesund, Svalbard from October 2018 to May 2019 shows that long-range inputs of PAHs mainly occur in winter, while the most abundant analyte retene exhibits opposite seasonal trends.
ENVIRONMENTAL POLLUTION
(2024)
Review
Environmental Sciences
Maoshui Zhuo, Zhijie Chen, Xiaoqing Liu, Wei Wei, Yansong Shen, Bing-Jie Ni
Summary: This paper discusses the application of three catalytic processes (photocatalysis, electrocatalysis, and biocatalysis) in the management of microplastic pollution, and introduces the efficiency and catalytic mechanisms of different catalysts. It also proposes the development prospects for sustainable management of microplastic pollution.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Shiyu Chen, Zhenzhen Shi, Qiang Zhang
Summary: In this study, a human physiologically based pharmacokinetic (PBPK) model of diethyl phthalate (DEP) was developed to assess its toxicity. The model considers the distribution and metabolism of DEP and its active metabolite monoethyl phthalate (MEP) in different tissue compartments. Sensitivity analysis and Bayesian Markov chain Monte Carlo (MCMC) simulations were performed to evaluate the uncertainty and variability of the model parameters. The results suggest that dermal absorption is an important route of exposure to DEP in the environment.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Bangguo Wang, Lijing Wang, Wenxi Cen, Tao Lyu, Peter Jarvis, Yang Zhang, Yuanxun Zhang, Yinghui Han, Lei Wang, Gang Pan, Kaili Zhang, Wei Fan
Summary: This study investigates the feasibility and mechanisms of a chemical-free nanobubble-based AOP for treating organic micropollutants in water. The results show that the oxygen nanobubble AOP has a significantly higher removal efficiency compared to air and nitrogen nanobubbles. The treatment performance is not affected by pH and the presence of ions. Higher initial concentrations of the micropollutant lead to slower treatment processes, but similar removal performance is achieved in the end. The presence of organic matter reduces the removal rate of the micropollutant. The results have practical feasibility for water and wastewater treatment.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Yingmei Huang, Jicai Yi, Yao Huang, Songxiong Zhong, Bin Zhao, Jing Zhou, Yuxuan Wang, Yiwen Zhu, Yanhong Du, Fangbai Li
Summary: This study investigates the impact of biochar on methylmercury (MeHg) accumulation in rice. The results show that biochar reduces MeHg levels in paddy soils by decreasing bioavailable Hg and microbial Hg methylation. Additionally, biochar decreases the uptake and translocation of MeHg in rice plants, resulting in a reduction of MeHg accumulation in rice grains.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Nengde Zeng, Fei Huang, Jiani Du, Chenghao Huang, Qian Yang, Xinhua Zhan, Baoshan Xing
Summary: This study investigates the protein targets and protein-ligand interactions related to PAH contamination in crop xylem sap using computational tools. The results show that phenanthrene has a more pronounced effect on the xylem sap proteins of maize and wheat, with maize DEPs associated with lipid biosynthesis and wheat DEPs exhibiting an increase in ABC transporters. This study provides insights into the regulation and movement of PAHs within plant xylem.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Xinwei Chen, Hao Ma, Run Wang, Man Wang, Binbin Zhu, Yanqing Cong, Xiayue Zhu, Guoqin Wang, Yi Zhang
Summary: Co3O4/TiO2-NRs electrodes with excellent photoresponse were prepared via plasma-assisted modification of Co3O4 on TiO2. The combination of Co3O4 and TiO2 improved the light utilization efficiency and showed potential for degradation of pollutants.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Wenjing Ji, Liying Song, Jing Wang, Hongqing Song
Summary: This study conducted a life-cycle assessment to examine the correlation between natural gas consumption and carbon emissions in different end uses in China. The results showed that both natural gas consumption and life-cycle carbon emissions have been increasing since 2017. Significant variations in NG life-cycle carbon emissions were found across different provinces and sectors, highlighting the need for targeted efforts to reduce carbon emissions.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Youyi Chen, Boxuan Zhang, Pojun Zhang, Guogui Shi, Hao Liang, Wu Cai, Jingyu Gao, Sumin Zhuang, Kaiyin Luo, Jiaqi Zhu, Chaoxiang Chen, Kunyu Ma, Jinrong Chen, Chun Hu, Xueci Xing
Summary: The synergistic effects of trace sulfadiazine and cast-iron corrosion scales on the formation of disinfection by-products in drinking water distribution systems were investigated. The presence of magnetite resulted in increased concentrations of DBPs due to the higher microbial activity and enhanced microbial extracellular electron transport pathway. The study highlights the importance of considering trace antibiotics pollution and corrosion scales in water sources for DBP control.
ENVIRONMENTAL POLLUTION
(2024)
Review
Environmental Sciences
Bishwa Raj Pokharel, Vijay Sheri, Manoj Kumar, Zhiyong Zhang, Baohong Zhang
Summary: This review summarizes the interactions, uptake, and transport of aluminum nanoparticles (Al-NPs) in plants, highlighting their negative effects on plant growth and development, as well as their potential to alter plant defense systems and gene expression.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Yonglu Wang, Fengsong Zhang, Xiaoyong Liao, Xiao Yang, Guixiang Zhang, Liyun Zhang, Chaojun Wei, Pengge Shi, Jiongxin Wen, Xiaorong Ju, Can Xu, Yang Liu, Ying Lan
Summary: This study aims to explore the effects of thiencarbazone-methyl center dot isoxaflutole on soil microflora and the potential mitigation mechanisms to bacterial communities. It was found that increasing the application of thiencarbazone-methyl center dot isoxaflutole resulted in increased stress on soil bacterial community structure and diversity. Increasing soil pH was recognized as a key factor in improving the diversity and structure of soil microflora. Supplemental use of nitrapyrin or modified attapulgite can increase soil pH and improve bacterial diversity.
ENVIRONMENTAL POLLUTION
(2024)