Article
Environmental Sciences
Tae Jun Park, Hyun-Sang Shin, Jin Hur
Summary: This study employed hydrophilic interaction chromatography (HILIC) to probe the hydrophobicity of aquatic humic substances (HS) and suggested a representative HS hydrophobicity index. The average log KOW value based on HILIC showed a strong negative correlation with known polarity index of HS and a good relationship with HS binding coefficients and adsorption onto kaolinite. This HILIC-based index proved to be an intuitive and robust indicator of HS hydrophobicity.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Multidisciplinary
Cedric Barthel, Georges Massiot, Catherine Lavaud
Summary: A novel H-1 nuclear magnetic resonance method was presented for measuring the lipophilicity of drugs, using the ERETIC technique and Water Suppression by Excitation Sculpting to improve signal to noise ratio. Experimental results showed excellent agreement with literature data, suitable for log P values between -2 and +2.
MAGNETIC RESONANCE IN CHEMISTRY
(2021)
Article
Environmental Sciences
Daniela Pavukova, Lucia Faskova, Eva Melnikova, Emilia Malisova, Jan Hives, Ladislav Stibranyi, Pavol Hudec, Monika Naumowicz, Miroslav Gal
Summary: This study investigated the adsorption of three environmentally harmful and hardly degradable pharmaceuticals, sulfamethoxazole, diclofenac, and cetirizine, onto two activated charcoals. The results showed that the volume of micropores and mesopores in the charcoals played a crucial role in the removal efficiencies. Microporous WSCl2 demonstrated higher removal efficiencies for all three pharmaceuticals. The adsorption behavior followed a pseudo-second order kinetic model, and the adsorption rate on HWOH was higher than on WSCl2. However, the amounts of adsorbed pharmaceuticals were lower on HWOH due to textural differences between the charcoals. The overall removal efficiencies were lower when all three compounds were present in the mixture.
Article
Engineering, Environmental
Feiyan Wang, Xin Li, Sumei Yu, Shuhong He, Duantao Cao, Shijie Yao, Hua Fang, Yunlong Yu
Summary: The uptake of six residual pesticides by maize in soil is influenced by their physicochemical properties, especially the octanol/water partition coefficient. The accumulation amount is positively correlated with adsorption coefficients and pesticide concentration in in situ pore water, while the root bioconcentration factor is influenced by log K-ow and molecular weight, and the translocation factor is affected by log K-ow and water solubility.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Ming Zhu, Huijun Su, Yurong Bao, Jianhua Li, Guanyong Su
Summary: In this study, experimental octanol-water partition coefficients (K-OW) of 39 liquid crystal monomers (LCMs) were measured, showing variations depending on specific structures with values generally falling in the range of 4.94-7.62. A quantitative structure activity relationship (QSAR) model was established based on the experimental data to predict values for LCMs without authentic standards, achieving a goodness-of-fit with a determination coefficient (R-2) of 0.810. The study suggests that LCMs tend to accumulate in the fatty tissue of organisms in aqueous environments.
Article
Environmental Sciences
Helle Vibeke Andersen, Marie Frederiksen
Summary: The study investigated human exposure pathways to PCB in a high-rise estate in Denmark by conducting an experiment on the sorption of PCB from air to settled house dust. Different origin house dust samples were exposed to elevated air concentrations of PCB in a vacant apartment, and most samples reached equilibrium for PCB congeners after 40 days. The measured partition coefficients were in agreement with literature values, and comparisons with predicted estimates showed good correlation with some overestimation. Additionally, dust-air ratios from field investigations confirmed the results from the exposure experiment, indicating near steady state conditions for PCB congeners in the dust.
Article
Environmental Sciences
Joseph J. Kim, Kelsey Delisle, Tanya M. Brown, Farida Bishay, Peter S. Ross, Marie Noel
Summary: The resident killer whale populations in the northeastern Pacific are threatened by persistent organic pollutants. High concentrations of PCBs and PBDEs were found in sediments along the British Columbia coast, exceeding the protective guidelines for killer whales. The presence of these contaminants may hinder the recovery of killer whales.
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2022)
Article
Mathematics
Ken Ono, Sudhir Pujahari, Larry Rolen
Summary: Heim, Neuhauser, and Troger recently studied MacMahon's plane partition function PL(n) and established some inequalities, as well as conjectured some properties. They conjectured that PL(n) is log-concave for n > 12 and proved this conjecture. They also proved the speculation that PL(n) satisfies the degree d Turan inequalities for sufficiently large n.
ADVANCES IN MATHEMATICS
(2022)
Article
Environmental Sciences
Jinlan Xu, Lu Xu, Xue Qiao, Yuanyuan Zheng, Youlin Xie, Zhengli Yang
Summary: The biodegradation efficiency of all alkanes in soil can be improved by adding stimulater and indigenous bacteria. The distribution of ammonia and the use of TPH as a main carbon source in the late stimulation stage significantly enhance the biodegradation effect in soil.
Article
Biochemistry & Molecular Biology
Spencer J. Sabatino, Andrew S. Paluch
Summary: In this study, blind predictions of octanol/water partition coefficients for drug-like compounds were made using molecular dynamics simulations. It was found that the predictions were sensitive to the choice of water force field, and the inclusion of water in the octanol-rich phase had a significant impact, which was also dependent on the chemical structure of the solute.
JOURNAL OF COMPUTER-AIDED MOLECULAR DESIGN
(2021)
Article
Engineering, Environmental
Xuejing Kang, Bo Hu, Mayang Christy Perdana, Yongsheng Zhao, Zhongbing Chen
Summary: This study utilized the extreme learning machine method and COSMO descriptors to construct estimation models for predicting the Kow of organics, with the ELM-4 model showing the best correlation coefficient and root-mean-square error.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Timothy F. M. Rodgers, Joseph O. Okeme, J. Mark Parnis, Kyle Girdhari, Terry F. Bidleman, Yuchao Wan, Liisa M. Jantunen, Miriam L. Diamond
Summary: Accurate values of physicochemical properties are crucial for screening semivolatile organic compounds for human and environmental hazard. A proposed workflow combines direct and indirect measurement methods as well as in silico values to estimate final adjusted values (FAVs). In silico methods showed significant variability and performed worse for larger, more polar compounds.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Environmental Sciences
Jianan Huang, Langjie Ye, Mingliang Fang, Guanyong Su
Summary: With the phase-out of traditional halogenated flame retardants, research interests have shifted to organophosphate flame retardants (OPFRs). This study conducted an extensive survey to identify the OPFRs currently being produced in factories and investigate their annual production volume (APV). Results indicate that there are at least 56 OPFR monomers and 62 OPFR mixtures being produced in 367 factories worldwide, with 201 of them located in Mainland China. The estimated APV of OPFRs is 598,422 metric tons, which may be underestimated due to limited information availability. The study also highlights the limited research on certain types of OPFRs and provides recommendations for future research in this area.
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
(2022)
Article
Polymer Science
Ksenia Valeriyevna Sukhareva, Nikita Romanovich Sukharev, Irina Ivanovna Levina, Peter Ogbuna Offor, Anatoly Anatolyevich Popov
Summary: This study investigated a new method for the halogenation of butyl rubber using solvent swelling and polychlorinated n-alkane modification, which improved its stability and resistance. The results showed that this method can produce a chlorinated rubber solution directly usable by rubber goods manufacturers and suppliers.
Article
Environmental Sciences
Bingxu Quan, Jiawei Tang, Xiameng Niu, Peidong Su, Zhimin Zhang, Yitao Yang
Summary: This study systematically monitored and assessed the transformation characteristics and ecological risks of PFASs from a typical aging municipal landfill leachate. The results revealed the presence of different types of PFASs in rivers and sediment, with PFOA being the most prominent. The study also analyzed the pollution distribution and potential risks of PFASs to the environment.
Article
Chemistry, Physical
Zhiyong Zhang, Guangqing Zhang, Jingxiu Wang, Shanshan Sun, Zhongzhi Zhang
COMPUTATIONAL AND THEORETICAL CHEMISTRY
(2016)
Article
Spectroscopy
Zhiyong Zhang, Zhongzhi Zhang, Yijing Luo, Shanshan Sun, Guangqing Zhang
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2018)
Article
Spectroscopy
Zhiyong Zhang, Chengjun Wang, Zhongzhi Zhang, Yijing Luo, Shanshan Sun, Guangqing Zhang
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2019)
Article
Multidisciplinary Sciences
Kai Cui, Zhiyong Zhang, Zhongzhi Zhang, Shanshan Sun, Hailan Li, Pengcheng Fu
SCIENTIFIC REPORTS
(2019)
Article
Engineering, Environmental
Hailan Li, Ruiqiu Lai, Yulin Jin, Xinxiang Fang, Kai Cui, Shanshan Sun, Yejing Gong, Haonan Li, Zhongzhi Zhang, Guangqing Zhang, Zhiyong Zhang
JOURNAL OF HAZARDOUS MATERIALS
(2020)
Article
Engineering, Environmental
Shun-Shun Chen, Xu-Xiu Chen, Tian-Yu Yang, Li Chen, Zheng Guo, Xing-Jiu Huang
Summary: A temperature-modulated sensing strategy was proposed to identify and determine BTEX compounds. Highly effective identification of BTEX was achieved using linear discrimination and convolutional neural network analyses. Additionally, quantitative analysis of concentration was accomplished by establishing the relationship between concentration and response.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Myungkyung Noh, Jeong Yeon Sim, Jisung Kim, Jee Hwan Ahn, Hye-Young Min, Jong-Uk Lee, Jong-Sook Park, Ji Yun Jeong, Jae Young Lee, Shin Yup Lee, Hyo-Jong Lee, Choon-Sik Park, Ho-Young Lee
Summary: This study reveals that chronic exposure to PM induces chronic inflammation and development of COPD by dysregulating NAD+ metabolism and subsequent SIRT1 deficiency in pulmonary macrophages. Activation of SIRT1 by resveratrol effectively mitigates PM-induced inflammation and COPD development. Targeting metabolic and epigenetic reprogramming in macrophages induced by PM is a promising strategy for COPD treatment.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yu Liu, Linlin Qin, Yiming Qin, Tong Yang, Haoran Lu, Yulong Liu, Qiqi Zhang, Wenyan Liang
Summary: Co/NC/PAC electrode was prepared by compounding ZIF-67 with powder-activated carbon for the electrocatalytic treatment of nitrogen-containing heterocyclic compounds. The degradation efficiency of the four compounds reached 90.2-93.7% under optimal conditions, and the degradation order was pyridazine < pyrimidine < pyrazine < pyridine.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Julien Couturier, Pierre Tamba Oulare, Blanche Collin, Claire Lallemand, Isabelle Kieffer, Julien Longerey, Perrine Chaurand, Jerome Rose, Daniel Borschneck, Bernard Angeletti, Steven Criquet, Renaud Podor, Hamed Pourkhorsandi, Guilhem Arrachart, Clement Levard
Summary: This study analyzes the properties of bauxite residue samples and explores the influence of bauxite ore origin, storage conditions, and storage time. The results show that the speciation of yttrium is related to the origin of bauxite ore, while no significant variation was observed with storage conditions or aging of the residues.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Sakthinarenderan Saikumar, Ravi Mani, Mirunalini Ganesan, Inbakandan Dhinakarasamy, Thavamani Palanisami, Dharani Gopal
Summary: Microplastic contamination in marine ecosystems poses a growing concern due to its trophic transfer and negative effects on marine organisms. This study investigates the transfer and impacts of polystyrene microplastics in an estuarine food chain. The results show that microplastics can be transferred through the food chain, although the transfer rates are low. The exposed organisms exhibit stress responses, suggesting the potential risk of microplastics reaching humans through the food chain.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Review
Engineering, Environmental
Yan-Jiao Li, Ying Yuan, Wen-Bing Tan, Bei-Dou Xi, Hui Wang, Kun-Long Hui, Jia-Bao Chen, Yi-Fan Zhang, Lian-Feng Wang, Ren-Fei Li
Summary: This review investigated and analyzed the distribution, composition, and abundance of heavy metals and antibiotic resistance genes (ARGs) in landfill. The results showed that heavy metals have lasting effects on ARGs, and complexes of heavy metals and organic matter are common in landfill. This study provides a new basis to better understand the horizontal gene transfer (HGT) of ARGs in landfill.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Jessy Joseph, Ari Vaisanen, Ajay B. Patil, Manu Lahtinen
Summary: Efficient and environmentally friendly porous hybrid adsorbent beads have been developed for the removal of arsenic from drinking water. The structural tuning of the adsorbents has been shown to have a significant impact on their adsorption performance, with high crystallinity leading to increased adsorption capacity and selectivity towards As5+.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yangyang Liu, Minhua Xiao, Kaiqin Huang, Juntao Cui, Hongli Liu, Yingxin Yu, Shengtao Ma, Xihong Liu, Meiqing Lin
Summary: This study measured the levels of phthalate metabolites in breast milk collected from mothers in southern China. The results showed that phthalates are still prevalent in the region, and breastfeeding contributes to phthalate intake in infants. However, the levels detected do not pose significant health risks to infants based on dietary exposure. The increasing exposure to certain phthalates calls for further research into their sources and potential risks.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhiqiang Wu, Jianxing Sun, Liting Xu, Hongbo Zhou, Haina Cheng, Zhu Chen, Yuguang Wang, Jichao Yang
Summary: Ocean depth affects microbial diversity, composition, and co-occurrence patterns of microplastic microbial communities. Deterministic processes dominate the assembly of mesopelagic plastisphere microbial communities, while stochastic processes shape the assembly of bathypelagic microbial communities. The relationships between microorganisms in the mesopelagic layer are more complex and stable, with Proteobacteria and Actinobacteriota playing important roles.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Tingting Xiao, Renjie Chen, Chen Cai, Shijie Yuan, Xiaohu Dai, Bin Dong, Zuxin Xu
Summary: Based on the efficiency of catalytic ozonation techniques in enhancing sludge dewaterability, this study investigated its effectiveness in simultaneous reduction of antibiotics and antibiotic resistance genes. The results showed that catalytic ozonation conditioning changed the distribution of antibiotics and achieved high degradation rates. It also significantly reduced the abundance of ARGs, inhibited horizontal gene transfer, and decreased the signal transduction of typical ARGs host bacteria.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yang Deng, Xiaohong Guan
Summary: This article discusses two different development approaches for ferrate(VI) technology in water treatment, arguing that process integration is a promising method that can drive technological innovation and revolution in water treatment, achieving higher treatment efficiency, reduced costs and energy consumption, and a smaller physical footprint.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhe Zhang, Lu Zhang, Zhihao Huang, Yuxin Xu, Qingqing Zhao, Hongju Wang, Meiqing Shi, Xiangnan Li, Kai Jiang, Dapeng Wu
Summary: In this study, a floating catalytic foam was designed and prepared to enhance the mass transfer in immobilized photocatalysts for wastewater treatment. The floating catalytic foam could float on the water surface and establish a temperature gradient, effectively promoting the diffusion and adsorption of target molecules during the photocatalytic process.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Muhammad Nafees, Adiba Khan Sehrish, Sarah Owdah Alomrani, Linlin Qiu, Aasim Saeed, Shoaib Ahmad, Shafaqat Ali, Hongyan Guo
Summary: The accumulation of cadmium and antibiotics in edible plants and fertile soil is a worldwide problem. This study investigated the potential of zinc oxide nanoparticles to alleviate the toxicity of both cadmium and antibiotics and promote spinach growth.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Lurui Wan, Kai Wang, Yuan Chen, Zhiyong Xu, Wenbo Zhao
Summary: In this study, a low viscosity and high thermal stability SO2 absorbent with dual interacting sites was successfully synthesized. The absorbent showed the highest absorption enthalpy change and entropy change values among reported SO2 absorbents, and exhibited lower viscosity and comparable thermal stability to ILs.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhengwei Zhou, Guojie Ye, Yang Zong, Zhenyu Zhao, Deli Wu
Summary: This study utilized Mo powder and STPP to enhance the performance of the sodium percarbonate system in pollutant degradation. The presence of Mo and STPP resulted in a higher degradation rate of the model pollutant SMX, with low oxidant consumption. The system generated multiple active species through a series of chain reactions at different pH values, exhibiting excellent performance towards electron-rich pollutants. Furthermore, Mo demonstrated excellent stability and reusability.
JOURNAL OF HAZARDOUS MATERIALS
(2024)