Article
Engineering, Environmental
Yaochun Yu, Shun Che, Changxu Ren, Bosen Jin, Zhenyu Tian, Jinyong Liu, Yujie Men
Summary: The recently discovered microbial reductive defluorination provides valuable insights into the environmental fate of PFASs and potential bioremediation strategies. This study systematically investigates the role of C=C double bonds in the biodegradability of unsaturated PFASs. The results show that alpha,beta-unsaturation is crucial for FCA biotransformation, and specific unsaturated FCA structures with trifluoromethyl branches exhibit enhanced degradability and defluorination capability.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Environmental Sciences
M. Chynel, C. Munschy, N. Bely, K. Heas-Moisan, C. Pollono, S. Jaquemet
Summary: The study found that bull sharks were more contaminated than tiger sharks, possibly due to their reliance on coastal habitats for feeding, while tiger sharks had lower contamination levels. The transfer of organic contaminants from mother to embryos differed between the two shark species, indicating that the mode of gestation in sharks may affect maternal transfer.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Daniela Negrete-Bolagay, Camilo Zamora-Ledezma, Cristina Chuya-Sumba, Frederico B. De Sousa, Daniel Whitehead, Frank Alexis, Victor H. Guerrero
Summary: Persistent Organic Pollutants (POPs) have become a serious environmental issue due to their toxicity and resistance to degradation, primarily originating from industrial and agricultural activities. This review article discusses the types, impacts, and removal methods of POPs, focusing on promising technologies such as bioremediation, advanced oxidation, ionizing radiation, and nanotechnology. Alternative approaches to control the use of pollutants and mitigate their effects on water sources are also suggested.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Environmental Sciences
Chalumba Kachusi Simukoko, Eliezer Brown Mwakalapa, Kaampwe Muzandu, Stephen Mutoloki, Oystein Evensen, Erik Magnus Raeder, Mette Bjorge Muller, Anuschka Polder, Jan Ludvig Lyche
Summary: The current study investigated the levels of persistent organic pollutants (POPs) in wild and farmed tilapia in Lake Kariba, Zambia, and assessed their levels in relation to Environmental Quality Standards (EQSs). Organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs), polybrominated diphenyls (PBDEs), and perfluoroalkyl substances (PFASs) were detected in liver samples of tilapia. Higher concentrations of POPs were generally found in wild tilapia, and specific POPs compounds were only detected in wild fish. The study also found that some of the POPs concentrations exceeded EQSbiota limits set by the EU, indicating the need for further studies.
ENVIRONMENTAL RESEARCH
(2023)
Review
Engineering, Environmental
Rifeng Wu, Shanquan Wang
Summary: The integration of bioremediation with organohalide-respiring bacteria (OHRB) and sulfate radicals-based oxidation (Bio-RD-PAO) shows promising results in addressing organohalide pollution, particularly for lowly-halogenated organohalides. This approach offers advantages such as complete attenuation, high reactivity, and non-selectivity to organohalides, making it a potential solution for future remediation applications.
FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING
(2022)
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
Engineering, Environmental
Mohammad Reza Shirzad Kebria, Luca Bono, Saeed Khoshhal Salestan, Andrea Armirotti, Riccardo Carzino, Athanassia Athanassiou, Despina Fragouli
Summary: Due to legislation, long-chain PFASs must be reduced and replaced with short-chain PFASs, which results in the abrupt introduction of short-chain PFASs in the environment. This study explores the use of a chitosan/polyethyleneimine based composite xerogel for the removal of PFBS from water. The study finds that the maximum PFBS adsorption capacity of the xerogel is 305 mg/g within 24 hours, and the adsorption process involves electrostatic interactions and hydrogen bond formations.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Jing Ai, Changyong Lu, Frans W. J. van den Berg, Weizhao Yin, Bjarne W. Strobel, Hans Christian B. Hansen
Summary: The study found that bone and shrimp-based biochars showed the highest catalytic activity for TCE reduction, while graphite and activated carbon showed no reactivity. Multivariate regression analysis indicated that the catalytic activity of biochar is controlled by multiple properties, including surface area, TCE sorption, abundance of C-O groups, and pore size.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Zhenguo Zhang, Zhou Zhou, Xitao Liu, Hui Zhang, Hengpu Xu, Chunye Lin, Mengchang He, Wei Ouyang
Summary: This study comprehensively evaluated the remediation performance, degradation mechanism and overall assessment of lindane-contaminated soil using a mechanochemical method assisted by CaO. Experimental results showed that the mechanical activation of CaO to produce free electrons (e-) and the alkalinity of Ca(OH)2 were the main reasons for the degradation of lindane in soil. Dechlorination reactions, alkaline hydrolysis, hydrogenolysis, and carbonization were the main degradation pathways of lindane. The mechanochemical method with CaO was also effective in degrading other pollutants and the soil properties and toxicity were assessed after remediation.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Zhenjie Li, Zhongyuan Guo, Xinyue Wu, Xunheng Jiang, Hao Li, Jiang Xu, Kun Yang, Daohui Lin
Summary: This study finds that supported palladium ensembles consisting of a few zero-valent Pd atoms exhibit exceptional reactivity in formic acid dehydrogenation and 4-chlorophenol dechlorination reactions. The reactivity is significantly higher than that of supported Pd single-atom catalysts. The findings highlight the important role of the structure and valence state of Pd ensembles in catalytic reductive reactions.
Article
Environmental Sciences
Angelo Noe Marquinez-Marquinez, Nikolt Stephanie Loor-Molina, Luis Santiago Quiroz-Fernandez, Naga Raju Maddela, Rafael Luque, Joan Manuel Rodriguez-Diaz
Summary: Per- and polyfluoroalkyl substances (PFASs), widely used since 1940 for their stability, have raised global concern due to their presence in water and soil, posing threats to the environment and human health. This work reviews the literature on remediation techniques for PFASs-contaminated soil and water. Ball milling, chemical oxidation, and thermal desorption are effective techniques for soil remediation, while electrocoagulation, membrane filtration, and various types of treatments show promising results for water remediation. The improvisation and application of these techniques on a larger scale are necessary to confirm their efficiency.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Haixiang Cheng, Chenhan Lv, Jianhui Li, Dexin Wu, Xugang Zhan, Ying Song, Nan Zhao, Hangbiao Jin
Summary: This study provides new insights into the bioaccumulation and biomagnification of PFNOBS in marine organisms, enhancing our understanding of its environmental behavior in the marine ecosystem.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Review
Environmental Sciences
Dushanthi M. Wanninayake
Summary: The remediation of PFASs in the environment is challenging due to limitations in field applications of existing techniques and the unique physiochemical characteristics of various PFASs. Advanced techniques such as electrochemical, sonochemical, AOPs, plasma, and novel hybrid techniques show promise for PFAS removal, but more research is needed to optimize their effectiveness in real-world scenarios.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Environmental Sciences
Guochun Lv, Jiaoxue Yang, Xiaomin Sun, Guiyin Wang, Zhang Cheng, Zhanbiao Yang, Changlian Xu, Junzhuo Cai, Xiaoxun Xu
Summary: One important pathway for human exposure to PFASs is through the Earth's atmosphere. However, the molecular-level transformation mechanism of emerging PFASs in the atmosphere needs further improvement. This study used quantum chemistry calculation to investigate the degradation mechanism of a new fluorinated alcohol (FESOH) in the presence of oxygen and nitric oxide. It was found that the degradation of FESOH involves abstraction reactions of H atom at alpha-C and beta-C atoms, leading to the formation of CF3OH. The bioaccumulation evaluation showed that FESOH and its transformation products cannot be accumulated in organisms.
ATMOSPHERIC ENVIRONMENT
(2023)
Article
Environmental Sciences
Rodrigo Alvarez-Ruiz, Yolanda Pico, Julian Campo
Summary: This study assessed the bioaccumulation of 20 chemical substances catalogued as ECs in Mytilus galloprovincialis, showing the accumulation of certain substances in the visceral mass and haemolymph of mussels, with MPs acting as a vector for the accumulation of PFASs.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
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)