Article
Microbiology
Katharina Meissner, Carola Sauter-Louis, Stefan E. Heiden, Katharina Schaufler, Herbert Tomaso, Franz J. Conraths, Timo Homeier-Bachmann
Summary: Antimicrobial resistance is a growing global problem in the treatment of bacterial infections in animals and humans. This study found that ESBL-positive E. coli, especially of the CTX-M type, were present in both conventional and organic pig farms. The percentage of ESBL-positive pens was higher on conventional farms and varied greatly on organic farms. The farms of origin appeared to have a major influence on the occurrence of ESBL-producing E. coli in the fattening farms.
Article
Infectious Diseases
Maria E. Riccio, Tess Verschuuren, Nadine Conzelmann, Daniel Martak, Alexandre Meunier, Elena Salamanca, Mercedes Delgado, Julia Guther, Silke Peter, Julian Paganini, Romain Martischang, Julien Sauser, Marlieke E. A. de Kraker, Abdessalam Cherkaoui, Ad C. Fluit, Ben S. Cooper, Didier Hocquet, Jan A. J. W. Kluytmans, Evelina Tacconelli, Jesus Rodriguez-Bano, Stephan Harbarth
Summary: The study found that ESBL-PE positive index patients discharged from hospitals are significant sources of ESBL-PE transmission within households, particularly during the first two months after discharge. The household transmission rate of ESBL-Kp was higher than ESBL-Ec, although there were more acquisitions of ESBL-Ec. Assisting the index patient with urinary and fecal excretions increased the risk of ESBL-PE transmission.
CLINICAL MICROBIOLOGY AND INFECTION
(2021)
Article
Biotechnology & Applied Microbiology
L. P. Randall, R. H. Horton, J. I. Chanter, F. Lemma, S. J. Evans
Summary: This study aimed to report on the presence of antimicrobial resistant Escherichia coli in retail chicken meat samples in the UK, focusing on AmpC, ESBL production, and carbapenem resistance. Results showed a significant decrease in the proportion of ESBL- and/or AmpC-positive samples in retail chicken meat in the UK from 2013/14 to 2018, possibly linked to reductions in antimicrobials used in the poultry meat sector.
JOURNAL OF APPLIED MICROBIOLOGY
(2021)
Article
Infectious Diseases
Gabriele Ratti, Alessia Facchin, Angelica Stranieri, Alessia Giordano, Saverio Paltrinieri, Paola Scarpa, Deborah Maragno, Alessia Gazzonis, Martina Penati, Camilla Luzzago, Paola Dall'Ara, Stefania Lauzi
Summary: This study aimed to investigate the presence and risk factors associated with the fecal carriage of ESBL/AmpC-producing E. coli in cats. Fecal samples from pet and stray cats were screened and confirmed for the presence of ESBL/AmpC-producing E. coli. Multidrug-resistant isolates were detected, and unhealthy cats and previous antibiotic therapy were significantly associated with fecal carriage of ESBL/AmpC-producing E. coli. These findings highlight the importance of antimicrobial stewardship and surveillance programs in companion animals, including stray cats.
Article
Public, Environmental & Occupational Health
I Nakamura, T. Yamaguchi, Y. Miura, H. Watanabe
Summary: This study investigated the transmission of ESBL-producing Klebsiella pneumoniae strains from sinks and drains in a general surgical hospital ward. Through whole-genome analysis, it was found that the isolates were indistinguishable genetically, confirming this mode of transmission.
JOURNAL OF HOSPITAL INFECTION
(2021)
Article
Microbiology
Hidenori Yamashiro, Yu Kasamatsu, Naomi Anan, Miki Takemura, Yoshinori Yamano
Summary: This study compared the efficacy of flomoxef with other beta-lactam antibiotics against extended-spectrum beta-lactamases (ESBL)-producing bacteria of clinical relevance. The results demonstrated that flomoxef showed good bactericidal effects and effectively inhibited the growth of ESBL-producing strains, even those with a high minimum inhibitory concentration (MIC) value. Therefore, flomoxef may be a promising alternative in the context of carbapenems sparing stewardship.
ANTIMICROBIAL AGENTS AND CHEMOTHERAPY
(2023)
Article
Infectious Diseases
Dai Akine, Teppei Sasahara, Kotaro Kiga, Ryusuke Ae, Koki Kosami, Akio Yoshimura, Yoshinari Kubota, Kazumasa Sasaki, Yumiko Kimura, Masanori Ogawa, Shinya Watanabe, Yuji Morisawa, Longzhu Cui
Summary: A high prevalence of extended-spectrum beta-lactamase-producing Enterobacterales (ESBL-PE) in geriatric long-term care facilities may require monitoring. This study analyzed ESBL-causative gene types and antimicrobial susceptibility in ESBL-PE strains from residents in Japanese g-LTCFs. The majority of strains contained bla(CTX-M) group genes and exhibited differences in antimicrobial susceptibility across facilities. Treatment strategies should take into account the specific antimicrobial susceptibility profiles of each g-LTCF.
Article
Multidisciplinary Sciences
Robert K. Adedze-Kpodo, Patrick K. Feglo, Eric Agboli, Richard H. Asmah, Precious K. Kwadzokpui
Summary: The study investigated UTI and ESBL production among pregnant women in Ho Municipality, revealing a high prevalence of UTI and persistent transmission of ESBLs. Urine culture during pregnancy is recommended as a routine laboratory investigation to prevent complications.
Article
Agriculture, Dairy & Animal Science
Kwang-Won Seo
Summary: A simple and fast method for detecting ESBL- and pAmpC beta-lactamase-producing bacteria in samples with high bacterial load is important for clinical antimicrobial selection. The disk diffusion test, DDST, and multiplex PCR were used for phenotypic and genotypic detection of ESBL and pAmpC. The majority of isolates carried beta-lactamase genes, especially in samples grown on MacConkey agar containing cephalothin or ceftiofur.
Article
Infectious Diseases
Nguyen Thanh Viet, Vu Van Du, Nghiem Duc Thuan, Hoang Van Tong, Nguyen Linh Toan, Can Van Mao, Nguyen Van Tuan, Srinivas Reddy Pallerla, Dennis Nurjadi, Thirumalaisamy P. Velavan, Ho Anh Son
Summary: The study in Vietnam found that 30% of pregnant women had colonization of E. coli and Klebsiella species in their birth canals, with 47% of them producing ESBL. Carapenem resistance was low overall, but over 20% of Klebsiella species were resistant. This highlights the need for surveillance and molecular typing to combat the high rate of ESBL-producers and carbapenem resistance in Enterobacterales in Vietnam.
Article
Infectious Diseases
Julia Moor, Suzanne Aebi, Susanne Rickli, Nadezda Mostacci, Gudrun Overesch, Anne Oppliger, Markus Hilty
Summary: The study found that the prevalence of ESC-R-Ec in Swiss pig farms decreased at different stages of growth, with liquid manure identified as the main environmental reservoir. Pig farming practices such as all-in-all-out systems can help reduce the risk of ESC-R-Ec.
INTERNATIONAL JOURNAL OF ANTIMICROBIAL AGENTS
(2021)
Article
Immunology
Jun Sakai, Shigefumi Maesaki
Summary: This study aimed to distinguish ESBL-producing K. quasipneumoniae (ESBL-KQ) and ESBL-producing K. variicola (ESBL-KV) from ESBL-producing K. pneumoniae (ESBL-KP) in terms of frequency, genomic characteristics, and antimicrobial susceptibility patterns. The study found that ESBL-KQ and ESBL-KP had different gene profiles, and the prevalence of antimicrobial resistance via AmpC and fluoroquinolone-resistance genes increased in ESBL-KQ.
MICROBIAL PATHOGENESIS
(2022)
Article
Immunology
Isabelle Vock, Lisandra Aguilar-Bultet, Adrian Egli, Pranita D. Tamma, Sarah Tschudin-Sutter
Summary: Majority of infections in hospitalized patients colonized with ESBL-PE are not caused by ESBL-PE. Site of infection and patient-level exposures may serve as useful predictors for nESBI,-PE infections, potentially guiding empiric treatment recommendations.
CLINICAL INFECTIOUS DISEASES
(2021)
Review
Immunology
Hiroki Namikawa, Waki Imoto, Koichi Yamada, Yoshihiro Tochino, Yukihiro Kaneko, Hiroshi Kakeya, Taichi Shuto
Summary: This systematic review and meta-analysis identified predictors of mortality from extended-spectrum beta-lactamase-producing Enterobacteriaceae (ESBL-PE) bacteremia. Previous antimicrobial therapy, neutropenia, nosocomial infection, rapidly fatal underlying disease, respiratory tract infection, Pitt bacteremia score, severe sepsis, and urinary tract infection were found to be predictors of mortality. Appropriate empirical therapy was identified as a protective factor against mortality.
EMERGING MICROBES & INFECTIONS
(2023)
Article
Infectious Diseases
Se Ra Shin, Seong Mi Noh, Woo Kyung Jung, Sook Shin, Young Kyung Park, Dong Chan Moon, Suk-Kyung Lim, Yong Ho Park, Kun Taek Park
Summary: The study conducted in South Korea between 2017 and 2019 identified various ESC-resistant bacterial isolates in companion animals, with predominant species being E. coli, Klebsiella, and others. These isolates displayed diversity in sequence types and resistance genes.
Article
Public, Environmental & Occupational Health
Anne Vested, Henrik A. Kolstad, Ioannis Basinas, Alex Burdorf, Grethe Elholm, Dick Heederik, Gitte H. Jacobsen, Hans Kromhout, Oyvind Omland, Inger Schaumburg, Torben Sigsgaard, Jesper M. Vestergaard, Inge M. Wouters, Vivi Schlunssen
Summary: The study suggests that exposure to wood or farm dust in the previous year increases the risk of hospital readmission for individuals with asthma but not for those with COPD.
SCANDINAVIAN JOURNAL OF WORK ENVIRONMENT & HEALTH
(2021)
Article
Environmental Sciences
Goncalo Macedo, H. Pieter J. van Veelen, Lucia Hernandez-Leal, Peter van der Maas, Dick Heederik, Dik Mevius, Alex Bossers, Heike Schmitt
Summary: Application of animal manure introduces manure-derived bacteria and antimicrobial resistance genes (ARGs) into soils, but does not significantly alter the overall bacterial community composition. Using high-throughput sequencing and ResCap techniques can provide insights into the fate of antimicrobial resistance in the environment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Daniel J. Duarte, Gunnar Niebaum, Volker Laemmchen, Eri van Heijnsbergen, Rik Oldenkamp, Lucia Hernandez-Leal, Heike Schmitt, Ad M. J. Ragas, Joerg Klasmeier
Summary: APIs are widely used for treating illnesses in humans and animals, leading to increasing global consumption and environmental releases. This study in the Vecht River defined ecological risk profiles for 8 APIs and found that some APIs may exceed safe ecological concentration thresholds under different water flow scenarios.
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2022)
Article
Environmental Sciences
Hetty Blaak, Merel A. Kemper, Heleen de Man, Jeroen P. G. van Leuken, Jack F. Schijven, Mark W. J. van Passel, Heike Schmitt, Ana Maria de Roda Husman
Summary: The prevalence of CPE in the Dutch population was estimated to be approximately 0.02%. CPE were detected at the majority of wastewater treatment plants, highlighting the importance of wastewater surveillance in monitoring the distribution of CPE.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
N. A. Sabri, H. Schmitt, B. M. van der Zaan, H. W. Gerritsen, H. H. M. Rijnaarts, A. A. M. Langenhoff
Summary: The study found that two constructed wetlands (CWs) showed significant removal of antibiotics, with some antibiotics having higher concentrations after treatment. In winter, five antibiotics had the highest concentrations, while ermB was more abundant in winter compared to summer. Other ARGs did not show significant seasonal changes, and the hydraulic retention time (HRT) did not affect the removal of antibiotics and ARGs.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Correction
Multidisciplinary Sciences
David F. Nieuwenhuijse, Bas B. Oude Munnink, My V. T. Phan, Patrick Munk, Shweta Venkatakrishnan, Frank M. Aarestrup, Matthew Cotten, Marion P. G. Koopmans
SCIENTIFIC REPORTS
(2021)
Article
Microbiology
Rebeca Pallares-Vega, Goncalo Macedo, Michael S. M. Brouwer, Lucia Hernandez Leal, Peter van der Maas, Mark C. M. van Loosdrecht, David G. G. Weissbrodt, Dick Heederik, Dik Mevius, Heike Schmitt
Summary: The study found that plasmid transfer in the environment is influenced by environmental conditions, particularly limited by low nutrient conditions. Despite occurring at different temperatures and nutrient conditions, the three recipient Escherichia coli strains all underwent plasmid transfer, but with significant differences in transfer frequencies.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Infectious Diseases
Dongsheng Yang, Dick J. J. Heederik, Dik J. Mevius, Peter Scherpenisse, Roosmarijn E. C. Luiken, Liese Van Gompel, Magdalena Skarzynska, Katharina Wadepohl, Claire Chauvin, Eri Van Heijnsbergen, Inge M. Wouters, Gerdit D. Greve, Betty G. M. Jongerius-Gortemaker, Monique Tersteeg-Zijderveld, Magdalena Zajac, Dariusz Wasyl, Katharina Juraschek, Jennie Fischer, Jaap A. Wagenaar, Lidwien A. M. Smit, Heike Schmitt
Summary: This study revealed the levels of antimicrobial resistance (AMR) in European pig and broiler farms and identified potential risk factors. Real-time quantitative PCR (qPCR) was used to assess the relative abundance of four antimicrobial resistance genes (ARGs) in fecal samples. The study found a significant association between ARG abundance and antimicrobial use (AMU) levels, as well as the impact of on-farm biosecurity measures on ARG abundance. Variance component analysis showed that AMR variation was primarily influenced by differences between countries, farms, and on-farm AMU.
JOURNAL OF ANTIMICROBIAL CHEMOTHERAPY
(2022)
Article
Environmental Sciences
Mariana Simoes, Nicole Janssen, Dick J. J. Heederik, Lidwien A. M. Smit, Roel Vermeulen, Anke Huss
Summary: This study aims to assess the potential associations between residential proximity to livestock farms and respiratory mortality.
ENVIRONMENT INTERNATIONAL
(2022)
Article
Environmental Sciences
Roosmarijn E. C. Luiken, Dick J. J. Heederik, Peter Scherpenisse, Liese Van Gompel, Eri van Heijnsbergen, Gerdit D. Greve, Betty G. M. Jongerius-Gortemaker, Monique H. G. Tersteeg-Zijderveld, Jennie Fischer, Katharina Juraschek, Magdalena Skarzynska, Magdalena Zajac, Dariusz Wasyl, Jaap A. Wagenaar, Lidwien A. M. Smit, Inge M. Wouters, Dik J. Mevius, Heike Schmitt
Summary: This study quantified absolute and relative levels of antimicrobial resistance genes (ARGs) in airborne farm dust using qPCR. It found that farm dust is a large reservoir of ARGs, which can potentially transmit to bacteria in other reservoirs. The study also identified different pathways that contribute to shaping the dust resistome in livestock farms.
ENVIRONMENTAL RESEARCH
(2022)
Article
Infectious Diseases
Dongsheng Yang, Dick J. J. Heederik, Peter Scherpenisse, Liese Van Gompel, Roosmarijn E. C. Luiken, Katharina Wadepohl, Magdalena Skarzynska, Eri Van Heijnsbergen, Inge M. Wouters, Gerdit D. Greve, Betty G. M. Jongerius-Gortemaker, Monique Tersteeg-Zijderveld, Luetzen Portengen, Katharina Juraschek, Jennie Fischer, Magdalena Zajac, Dariusz Wasyl, Jaap A. Wagenaar, Dik J. Mevius, Lidwien A. M. Smit, Heike Schmitt
Summary: This study compares the abundance of antimicrobial resistance genes (ARGs) across different animal species, production environments, and humans in Europe. The results show significant variations in ARG abundance among animal species, environments, and humans. The variations are mainly influenced by differences between farms (pigs) or within farms (broilers, veal calves, and turkeys). A decrease in ARG abundance along pig and broiler production chains is observed. The study also finds a high correlation between qPCR data and previously published metagenomic data of ARG abundance.
JOURNAL OF ANTIMICROBIAL CHEMOTHERAPY
(2022)
Article
Engineering, Environmental
Goncalo Macedo, Asmus K. Olesen, Lorrie Maccario, Lucia Hernandez Leal, Peter v d Maas, Dick Heederik, Dik Mevius, Soren J. Sorensen, Heike Schmitt
Summary: This study aimed to quantify and identify new plasmid-acquiring bacteria resulting from manure application to soils to assess the risk of horizontal gene transfer in the environment. The results showed that gene transfer from fecal to soil bacteria occurred despite suboptimal conditions, but these events were rare and mainly happened shortly after manure application, with the plasmid not colonizing the soil community.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Microbiology
Wietske Dohmen, Apostolos Liakopoulos, Marc J. M. Bonten, Dik J. Mevius, Dick J. J. Heederik
Summary: A long-term study in 39 Dutch pig farms revealed the presence of ESBL-producing Enterobacterales in both pigs and pig farmers, suggesting the possibility of genetic and horizontal transmission. These findings are crucial for developing targeted intervention strategies to reduce the risk of human exposure to ESBL-producing Enterobacterales.
MICROBIOLOGY SPECTRUM
(2023)
Article
Environmental Sciences
Muqiu Hu, Xin Zhao, Jinghan Gu, Lulu Qian, Zhiqing Wang, Yuanyuan Nie, Xiaoyu Han, Long An, Haiqiang Jiang
Summary: Due to its simple process, environmental friendliness, and low operating costs, biometallurgy has become a popular technology for metals recovering from low-grade ores and tailings. An optimized agar was used to isolate and grow functional bacteria, resulting in the successful isolation of six functional stains. These strains were further tested for their ability to leach metals from polymetallic sulfide tailings, with significant improvements observed when the strains were mixed together. The selection of leaching process should be based on tailings composition and target metals.
ENVIRONMENTAL RESEARCH
(2024)
Review
Environmental Sciences
Saqib Hassan, Aswin Thacharodi, Anshu Priya, R. Meenatchi, Thanushree A. Hegde, R. Thangamani, Ht Nguyen, Arivalagan Pugazhendhi
Summary: An Endocrine Disrupting Chemical (EDC) is a compound that disrupts the function of the endocrine system and is found in the environment. EDCs, such as Bisphenol A and pesticides, have been shown to have negative effects on the female reproductive system. Understanding the relationship between EDCs and women's health is crucial for developing strategies to protect reproductive health and informing public policy decisions.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Lichang Zhou, Zhaoling Li, Boyi Cheng, Jinqi Jiang, Xinqi Bi, Zongping Wang, Guanghao Chen, Gang Guo
Summary: Thiosulfate can promote sulfur-mediated bacterial activity, inhibit glycogen accumulating organisms, and enhance denitrification efficiency. After the carbon source is reduced, the competitive ability of glycogen accumulating organisms increases, resulting in reduced sulfate reduction.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Claire E. Campbell, Devyn L. Cotter, Katherine L. Bottenhorn, Elisabeth Burnor, Hedyeh Ahmadi, W. James Gauderman, Carlos Cardenas-Iniguez, Daniel Hackman, Rob McConnell, Kiros Berhane, Joel Schwartz, Jiu-Chiuan Chen, Megan M. Herting
Summary: Recent studies have found a connection between air pollution and increased risk for behavioral problems during development. However, more longitudinal studies are needed to investigate how exposure during the transition to adolescence may affect emotional behaviors.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Jing-hong Liang, Ru-yu Yang, Mei-ling Liu, Ying-qi Pu, Wen-wen Bao, Yu Zhao, Li-xin Hu, Yu-shan Zhang, Shan Huang, Nan Jiang, Xue-ya Pu, Shao-yi Huang, Guang-hui Dong, Ya-jun Chen
Summary: This study examines the association between urban Green and blue spaces (GBS) exposure and Emotion and behavior problems (EBP) in youth populations. The findings suggest that higher exposure to GBS, particularly green spaces (GS) and blue spaces (BS), is associated with a decrease in the risk of developing total difficulties in young individuals. The joint effect of GS and BS may also contribute to the decrease in EBPs.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Diego Ruiz-Sobremazas, Mario Ruiz Coca, Miguel Morales-Navas, Rocio Rodulfo-Cardenas, Caridad Lopez-Granero, Maria Teresa Colomina, Cristian Perez-Fernandez, Fernando Sanchez-Santed
Summary: Air pollution is associated with a range of health issues and gestational exposure to environmental pollutants may be linked to neurodevelopmental disorders. This study investigated the effects of oral gestational exposure to particulate matter (PM) on ultrasonic vocalizations (USV). The findings suggest that this exposure may lead to social deficits and abnormal gene expression related to neurotransmitter systems. Further research is needed to better understand the effects of air pollution on neurodevelopmental disorders and the neurotransmission systems involved.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Yagmur Kabakci, Sadiye Kosar, Ozgur Dogan, Fehmi Gorkem Uctug, Osman Atilla Arikan
Summary: This study investigated the effect of electrohydrolysis pretreatment on municipal solid waste. The results showed that applying electrohydrolysis pretreatment increased methane production and reduced the time required for hydrolysis, suggesting it is a promising method to improve anaerobic digestion efficiency.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Chuanwu Zhao, Yaozhong Pan, Hanyi Wu, Yu Zhu
Summary: This study analyzed the impact of industrial zones on urban heat islands using remote sensing images and a novel spectral index. The research found that the contraction or expansion of industrial zones has a significant effect on land surface temperature. The results are valuable for environmental assessment and fine management of industrial cities.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Bang Du, Zhongzhong Wang, Piet N. L. Lens, Xinmin Zhan, Guangxue Wu
Summary: This study investigated the performance, syntrophic relationships, microbial communities, and metabolic pathways of ethanol-fed reactors with different operational modes and solids retention times. The results showed that different microorganisms were enriched under different SRT conditions, and syntrophic bacteria related to methane production could be enriched under low SRT conditions.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Gokulan Ravindiran, Sivarethinamohan Rajamanickam, Muralikrishnan Ramalingam, Gasim Hayder, Balamurugan Karupaiya Sathaiah, Madhava Krishna Reddy Gaddam, Senthil Kumar Muniasamy, Priya Arunkumar
Summary: The present study investigated the sustainable approach for wastewater treatment using waste algal blooms. The biochar produced by the marine algae Ulva reticulata was used to remove chromium, nickel, and zinc from aqueous solutions. The study examined the adsorbents' properties and stability using SEM/EDX, FTIR, and XRD. The results showed that the biochar had high removal efficiency for the toxic metals, and the packed bed column effectively removed the heavy metal ions. The Thomas and Adams-Bohart models were found to best fit the regression values, and desorption studies were conducted to understand the sorption and elution processes.
ENVIRONMENTAL RESEARCH
(2024)
Review
Environmental Sciences
Vignesh Vinayagam, Kavitha Nagarasampatti Palani, Sudha Ganesh, Siddharth Rajesh, Vedha Varshini Akula, Ramapriyan Avoodaiappan, Omkar Singh Kushwaha, Arivalagan Pugazhendhi
Summary: The presence of pollutants in water contributes to global pollution and poses significant threats to humans and wildlife. Finding effective wastewater treatment techniques is crucial for reducing pollutant accumulation in the environment. This paper highlights recent advances in the electrochemical advanced oxidation method and other processes for treating pharmaceuticals, dyes, and pesticide-polluted effluents.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
M. M. M. Ahmed, Kai-Yue Chen, Fang-Yu Tsao, Yi-Cheng Hsieh, Yu-Ting Liu, Min Tzou
Summary: This study investigated the sorption of citric acid onto humic acid-iron hydr(o)xide coprecipitate (HAFHCP) and the reciprocal effects of citric acid and P sorption on HAFHCP. The results showed that citric acid could increase P availability and have an impact on P sorption.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Xibo Xu, Zeqiang Wang, Xiaoning Song, Wenjie Zhan, Shuting Yang
Summary: The selection of predictor variables is crucial in building a digital mapping model for potentially toxic elements (PTEs) in soil. Traditionally, spatial and spectral parameters have been used as predictor variables, but the temporal dimension is often overlooked. This study demonstrates the value of incorporating temporal indices in the model, leading to significant performance improvements. The temporal-spatial-spectral covariate combinations used in a random forest (RF) algorithm achieve satisfactory mapping accuracy and outperform other methods.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Yan Pei, Xun Liu, Mengbo Cao, Zijun Wang, Hongbing Yang
Summary: Heteroatom doping can reconfigure the electronic structure of heterogeneous catalysts, leading to the development of advanced oxidation water purification materials with superior performance and stability. In this study, a series of catalysts with different elemental doping were prepared using a simple and environmentally friendly method. The S-doped NiCo2O4 catalyst showed excellent catalytic performance for the removal of Tetracycline, with significantly increased kinetic constant and high oxidation and mineralization efficiency in a wide pH range. The degradation process was dominated by non-radical oxidation pathway after S doping, and the overall process moved towards low toxicity.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Srivalli Thimmarayan, Harshavardhan Mohan, Gaddapara Manasa, Karthi Natesan, Shanmugam Mahendran, Pavithra Muthukumar Sathya, Byung-Taek Oh, R. Ravi Kumar, Rangasamy Sigamani Gandhimathi, Arul Jayaprakash, Kamala-Kannan Seralathan
Summary: This study investigated the bacterial degradation of naphthalene (NPT) isolated from crude oil-contaminated soil. Bacillus sp. GN 3.4, a potential bacteria for NPT biodegradation, was isolated and the optimal conditions for NPT degradation were determined. The study suggests that Bacillus sp. GN 3.4 could potentially aid in bioremediation by eliminating NPT from the soil.
ENVIRONMENTAL RESEARCH
(2024)