Article
Engineering, Environmental
Andre Luis Correa de Barros, Daniel Aparecido da Silva Rodrigues, Camila Cristina Rodrigues Ferreira da Cunha, Igor Aparecido Santana das Chagas, Daiana Rocha do Espirito Santo, Silvana de Queiroz Silva, Robson Jose de Cassia Franco Afonso
Summary: This study evaluated the degradation, mineralization, and DBPs formation of the widely used herbicide metribuzin during aqueous chlorination. The results showed that DBPs formed during chlorination were more toxic than the precursor metribuzin, with increased toxicity effects on Anemia salina nauplii. Additionally, chlorinated solutions exhibited high estrogenicity to human receptors and mutagenic and developmental toxicant effects in BLYES and Q(SAR) tests.
Article
Environmental Sciences
Amandine Michel, Dominic Armbruster, Angelika Benz-Birck, Nina Deppermann, Reinhard Doetzer, Markus Floers, Markus Frericks, Shanghua Li, Sebastian Gebler, Tom Schroeder, Wolfram Seitz
Summary: This paper proposes a tiered approach for the risk evaluation of transformation products (TPs) formed from pesticide residues during drinking water treatment. By analyzing the concentrations of pesticide residues in raw water and conducting toxicity testing, the safety of drinking water can be ensured.
ENVIRONMENTAL SCIENCES EUROPE
(2022)
Article
Environmental Sciences
Andre Luis Correa de Barros, Daniel Aparecido da Silva Rodrigues, Camila Cristina Rodrigues Ferreira da Cunha, Silvana de Queiroz Silva, Robson Jose de Cassia Franco Afonso
Summary: This study evaluated the degradation of fipronil under typical chlorination conditions, identified its disinfection by-products, and assessed the toxicity of unreacted and chlorinated solutions. The results showed that chlorination quickly degraded fipronil and produced toxic disinfection by-products, with potential mutagenic and developmental toxicant properties.
WATER AIR AND SOIL POLLUTION
(2021)
Article
Chemistry, Applied
Ge Chen, Guangyang Liu, Huiyan Jia, Xueyan Cui, Yuanshang Wang, Dongyang Li, Weijia Zheng, Yongxin She, Donghui Xu, Xiaodong Huang, A. M. Abd El-Aty, Jianchun Sun, Haijin Liu, Yuting Zou, Jing Wang, Maojun Jin, Bruce D. Hammock
Summary: A competitive bio-barcode immunoassay was developed for simultaneous quantification of organophosphate pesticide residues using AuNP signal amplification technology and Au@Pt catalysis, with good recoveries and detection limits.
Article
Engineering, Environmental
Christopher J. Knutson, Nicholas C. Pflug, Wyanna Yeung, Matthew Grobstein, Eric Patterson, David M. Cwiertny, James B. Gloer
Summary: There is a growing interest in predicting the transformation products of emerging pollutant classes using computational methods, particularly in reactions with chlorine. Results demonstrated that steroidal dienones and trienones proceeded through C4 chlorination to yield 4-chloro derivatives and 9,10-epoxide products, with some deviations observed in steroids with electron-rich substituents.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Nanoscience & Nanotechnology
Yunxia Yang, Qian Liu, Yisong Zhao, Jianmin Chen, Bing Chen, Yanling Yan, Faming Gao
Summary: This study explored CuPt alloy nanotubes with an open end, which have a larger electrochemical active surface area and more active sites for enzyme immobilization, thus improving the efficiency and sensitivity of the biosensor.
Article
Environmental Sciences
Li Zhang, Jiaxin Ma, Peipei Liu, Anxiang Qi, Haiyan Jin, Renming Jia, Zhenming Zheng, Cheng Yan, Minghong Cai
Summary: With the prohibition of conventional organochlorine pesticides, the use of current-use pesticides such as organic amine pesticides and organophosphate pesticides in agriculture and mariculture activities has become a global concern. A study in the Beibu Gulf, a subtropical agricultural and maricultural zone, found that pesticides were widely present in seawater and sediment, with the most abundant categories being organic amine pesticides and organophosphate pesticides. The spatial distribution of pesticides showed a decrease from coastal areas to the sea, indicating the impact of anthropogenic activities on pesticides pollution.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Chemistry, Physical
Nayana Bhat, Bodee Nutho, Alisa Vangnai, Kaito Takahashi, Thanyada Rungrotmongkol
Summary: This study investigated the binding interactions of three organophosphate pesticides with GpdQ enzyme using computational approaches. The results showed that the pesticides binding could stabilize the enzyme structure in the active conformation, allowing the substrate to be catalyzed into less harmful products. The in silico analysis presented here could be informative for enhancing enzyme stability and activity in the future.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Organic
Hai-Lei Cui, Xiao-Hui Chen
Summary: We have developed an efficient chlorination method for pyrrolo[2,1-a]isoquinoline derivatives using POCl3 and tetramethylene sulfoxide as a promoter. Under mild reaction conditions, various pyrrolo[2,1-a]isoquinolines, polysubstituted pyrroles, and naphthols can be readily chlorinated with high yields (up to >99%). AcCl can also serve as a competent chlorine source in this chlorination reaction.
JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Applied
Yuanshang Wang, A. M. Abd El-Aty, Shanshan Wang, Xueyan Cui, Jing Zhao, Xingmei Lei, Lingyuan Xu, Yongxin She, Fen Jin, Jong-Bang Eun, Jae -Han Shim, Jing Wang, Maojun Jin, Bruce D. Hammock
Summary: In this study, a catalytic hairpin self-assembly (CHA)-based competitive fluorescent immunosensor was developed for the rapid detection of organophosphate pesticides in agricultural products. This method demonstrated high sensitivity, wide detection range, and excellent reliability, making it a promising approach for various applications such as food safety, environmental monitoring, and national health.
Article
Environmental Sciences
Hongxiu Liu, Anna Maria Campana, Yuyan Wang, Kurunthachalam Kannan, Mengling Liu, Hongkai Zhu, Shilpi Mehta-Lee, Sara G. Brubaker, Linda G. Kahn, Leonardo Trasande, Akhgar Ghassabian
Summary: The study found that pregnant women in NYC had lower levels of OP pesticide metabolites than pregnant populations in Europe, Asia, and other regions in the U.S. Lower pre-pregnancy body mass index, being Asian, employed, and single were associated with higher DAP metabolite concentrations, while fruit and grain intakes were associated with higher Sigma DM, Sigma DE, and Sigma DAP levels.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
C. Espinosa da Silva, S. Gahagan, J. Suarez-Torres, D. Lopez-Paredes, H. Checkoway, J. R. Suarez-Lopez
Summary: This study found that children examined soon after a pesticide spray period had lower neurobehavioral performance compared to those examined later, indicating a transient effect of peak pesticide spray seasons on neurobehavior followed by recovery during low pesticide-use periods. It is advised to reduce children's pesticide exposure potential during peak pesticide-use periods.
ENVIRONMENTAL RESEARCH
(2022)
Review
Gastroenterology & Hepatology
Tusha Sharma, Nagabhishek Sirpu Natesh, Ramesh Pothuraju, Surinder K. Batra, Satyanarayana Rachagani
Summary: The human gut microbiota can be disrupted by environmental contaminants such as pesticides, posing potential health risks. The metabolites produced by gut microbiota play a significant role in maintaining host health, and an imbalance in this system can lead to various diseases. Recent studies have shown that pesticides have harmful effects on the host's gut microbiota. Therefore, further research is needed to understand the impact of pesticides on gut microbiota-mediated metabolic changes, which may provide insights into pesticide-induced toxicity.
Review
Engineering, Environmental
Archana Mishra, Jitendra Kumar, Jose Savio Melo, Bhanu Prakash Sandaka
Summary: Dichlorvos is an organophosphate pesticide widely used in agriculture and industry, but its indiscriminate use can have harmful effects on the environment and human health. Research on detecting and monitoring dichlorvos has mainly focused on the past three decades, particularly in food, environment, and agriculture.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Environmental Sciences
Nikolay V. Ul'yanovskii, Ilya S. Varsegov, Sergey A. Sypalov, Dmitrii M. Mazur, Dmitry S. Kosyakov, Albert T. Lebedev
Summary: This study investigates the transformation pathways and mechanisms of cocamidopropyl betaine (CAPB) under chlorination conditions in pool water. The results reveal the formation of a wide range of disinfection by-products (DBPs) containing chlorine atoms, some of which have high toxicity and carcinogenic properties. The analysis of real swimming pool water samples confirms the presence of CAPB and other DBPs in the water.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Rong-Gui Zhu, Chang-Gui Pan, Feng-Jiao Peng, Chao-Yang Zhou, Jun-Jie Hu, Kefu Yu
Summary: This comprehensive survey investigated the occurrence, bioaccumulation, and trophic magnification of parabens and their metabolite 4-HB in a marine food web. Results showed that parabens were the predominant pollutants in marine organisms, with significant bioaccumulation from sediments. The estimated trophic magnification factor indicated biomagnification for MeP and trophic dilution for 4-HB. Overall, the risks for humans consuming marine organisms were found to be low.
Article
Engineering, Environmental
Andres F. Torres-Franco, Deborah Leroy-Freitas, Cristina Martinez-Fraile, Elisa Rodriguez, Pedro A. Garcia-Encina, Raul Munoz
Summary: Anaerobic and microalgae-based technologies have emerged as sustainable alternatives for municipal wastewater treatment. However, the presence of viruses in the treated wastewater is a major concern for reuse applications. This study assessed the ability of these technologies to reduce viruses during secondary wastewater treatment. The results showed that all technologies were effective in reducing the concentration of viruses, with microalgae-based treatment exhibiting the highest potential for reducing the disinfection requirements of treated wastewater.
Article
Engineering, Environmental
Young Gwang Kim, Sae Yun Kwon, Spencer J. Washburn, Scott C. Brooks, Ji Won Yoon, Lucien Besnard
Summary: The study uses Hg isotope ratios to identify the sources and exposure pathways of mercury in bivalves, finding that dissolved Hg phases in the water column are the primary source and exposure pathway to bivalves. This provides new insights into using bivalves as bioindicators for sediment quality monitoring.
Article
Engineering, Environmental
Hui Geng, Ying Xu, Rui Liu, Dianhai Yang, Xiaohu Dai
Summary: This study investigates the effect of cation exchange resin (CER) on the sequential recovery of hydrogen and methane from anaerobic digestion (AD) and the corresponding mechanisms. The results show that CER can simultaneously enhance the production of hydrogen and methane by promoting the solubilisation, hydrolysis, and acidification of organic matter. Additionally, CER facilitates effective contact between bacteria and organic particulates and reduces the energy barrier for mass transfer during methane production. The study also reveals changes in the microbial community structure and metagenomics during the AD process.
Article
Engineering, Environmental
Xiaojing Lin, Zhan Jin, Shunfeng Jiang, Zhiquan Wang, Suqing Wu, Ke Bei, Min Zhao, Xiangyong Zheng
Summary: Dehumidification combined with addition of absorbent resin supplement (ARS) was used to achieve rapid evaporation of non-pretreated urine, resulting in high water evaporation efficiency and nutrient recovery.
Article
Engineering, Environmental
Yangli Che, Chaoran Lin, Shen Li, Jiao Liu, Longhai Zhu, Shilei Yu, Nan Wang, Haoshuai Li, Mutai Bao, Yang Zhou, Tonghao Si, Rui Bao
Summary: Hydrodynamic processes play a crucial role in the transmission of sediments, microbial assembly, and organic carbon redistribution in the ocean. Through experiments and analysis, we found that hydrodynamics shape the assembly of microbial communities and control the redistribution of different sourced organic carbon, thereby influencing microbial-mediated biogeochemical transformation.
Article
Engineering, Environmental
Chao Chen, Yu Yang, Nigel J. D. Graham, Zhenyu Li, Xingtao Yang, Zhining Wang, Nadia Farhat, Johannes S. Vrouwenvelder, Li -an Hou
Summary: The fouling of seawater reverse osmosis membranes is a persistent challenge in desalination. This study monitored the operational performance of a desalination plant for 7 years and the fouling development in different areas of membrane modules. The findings showed that operational performance declined over time and fouling mainly occurred at the feed side of the modules, with the highest microbial diversity. Keystone species like Chloroflexi and Planctomycetes played an important role in maintaining community structure and biofilm maturation. Polysaccharides, soluble microbial products, marine humic acid-like substances, and inorganic substances contributed to fouling. Overall, biofouling had a significant impact on membrane fouling after 7 years of operation.
Article
Engineering, Environmental
Dan Li, Jieyi Sun, Yibo Fu, Wentao Hong, Heli Wang, Qian Yang, Junhong Wu, Sen Yang, Jianhui Xu, Yunfei Zhang, Yirong Deng, Yin Zhong, Ping'an Peng
Summary: Sulfidation-oxidation treatment of magnetite (Fe3O4) enhances the production of dark center dot OH, which can efficiently degrade dissolved organic matter (DOM) and accelerate carbon cycling.
Article
Engineering, Environmental
Cheng Yu, Kaijun Wang, Kaiyuan Zhang, Ruiyang Liu, Pingping Zheng
Summary: This study implemented a microaerobic-aerobic configuration in a full-scale municipal wastewater treatment facility and investigated the effects on sludge characteristics, pollutant removal, microbial community, and granulation mechanisms. The results showed successful transition from flocculent-activated sludge to well-defined AGS after two months of operation. The primary pathways for pollutant removal were simultaneous nitrification, denitrification, and phosphorus removal. Moreover, the incorporation of internal separators induced shifts in the flow pattern, which promoted granulation.
Article
Engineering, Environmental
Zhe Zhang, Shaoyang Hu, Guangrong Sun, Wei Wang
Summary: Halogenated aromatic disinfection byproducts (DBPs), such as halogenated phenols, have garnered widespread attention due to their high toxicity and prevalence. This study reports on the analysis, occurrence, and cytotoxicity of a group of emerging halogenated aromatic DBPs, known as halogenated polyhydroxyphenols (HPPs), in drinking water.
Article
Engineering, Environmental
Shengyue Chen, Jinliang Huang, Peng Wang, Xi Tang, Zhenyu Zhang
Summary: Accurate prediction of river water quality is crucial for sustainable water management. This study introduces wavelet analysis and transfer learning techniques to assist LSTM modeling, proposing a newly coupled modeling approach that improves short-term prediction of river water quality.
Article
Engineering, Environmental
Bang Du, Xinmin Zhan, Piet N. L. Lens, Yifeng Zhang, Guangxue Wu
Summary: Efficient anaerobic digestion relies on the cooperation of different microorganisms with different metabolic pathways. This study investigated the effects of different operational modes and the addition of powdered activated carbon (PAC) on ethanol metabolic pathways. The results showed that the SBR mode and the presence of CO2 facilitated ethanol metabolism towards propionate production, while the CFR mode with extended solids retention time enriched Geobacter. Adjusting operational modes and PAC addition can modulate anaerobic ethanol metabolism and enrich Geobacter.
Article
Engineering, Environmental
Wanfa Wang, Si-Liang Li, Jun Zhong, Yuanbi Yi, Fujun Yue, Zenglei Han, Qixin Wu, Ding He, Cong-Qiang Liu
Summary: This study compares the carbon biogeochemical processes in karst and non-karst regions within large thermal stratified river-reservoir systems. The results demonstrate that karst reservoirs have a reduced potential for carbon emissions and highlight the importance of considering geologic settings to improve accuracy in regional and global CO2 emission estimates.
Article
Engineering, Environmental
Chunxia Jiang, Zelong Zhao, Dong Zhu, Xiong Pan, Yuyi Yang
Summary: This study analyzed the occurrence and distribution of antibiotic resistance genes (ARGs) in different environmental media of the Yangtze River using metagenomics. Core resistome dominated by multidrug resistance genes was found in all samples, while rare resistome dominated by various resistance genes was more prevalent in plasmids. Specific bacteria were identified as hosts for both core and rare resistomes, with high clinical concern ARGs found in the rare resistome. Particle-associated environment provided the most ideal conditions for resistome hosts. This study provided insights into the genetic locations of ARGs and the community assembly mechanisms of ARG hosts in freshwater environments.
Article
Engineering, Environmental
Yu Zhang, Yongtao He, Linchun Jia, Lei Xu, Zheng Wang, Yueling He, Ling Xiong, Xumeng Lin, Hong Chen, Gang Xue
Summary: By synergizing organic carbon source, thiosulfate, and zero-valent iron, efficient mixotrophic denitrification of oligotrophic secondary effluent can be achieved. Thiosulfate plays a vital role in promoting TN removal efficiency, while corrosion of Fe0 releases OH- to neutralize H+ from thiosulfate-driven denitrification, creating a suitable environment for denitrification. The coordination of thiosulfate and Fe0 maintains the dominance of Thiobacillus for denitrification.