Article
Engineering, Environmental
Kyongjin Pang, Honglei Zhao, Jiye Hu
Summary: Direct photolysis is an important abiotic transformation for pesticides in the aquatic environment. The study found that in basic solutions, the direct photolysis rate of amisulbrom is 2.5-2.8 times faster than in acidic or neutral solutions. Several photolysis products were identified, with some showing higher toxicity than the parent compound.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Leonardo Romero-Martinez, Javier Moreno-Andres, Asuncion Acevedo-Merino, Enrique Nebot
Summary: UV treatment is commonly used for water disinfection. This study focuses on determining the UV intensity in flow-through reactors equipped with UV-C LEDs using indirect methods. The study also investigates the inactivation of bacterial indicators and calculates the UV dose required for four-log reductions. The findings show that different methods yield similar average intensity values and determine the necessary UV dose for inactivation.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Engineering, Environmental
Yuanxi Huang, Haoyu Xu, Baiyang Chen, Huimei Pan, Zechao Qiu
Summary: Haloacetaldehydes (HALs), common disinfection byproducts in drinking water, can be effectively degraded by UV254, with chloride as the major product and substantial decrease in total organic carbon. The simultaneous cleavage of carbon-chloride bonds in Cl-HALs during photolysis was observed, and factors such as free chlorine and various ions were found to influence the photolysis rates.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Applied
Mounir Maafi, Mohammed Ahmed Al-Qarni
Summary: Photochromes have potential applications based on their versatility and photobehavior; an integrated rate-law equation has been established for samples exposed to monochromatic light, but not yet for polychromatic light; c-DAE is a reliable actinometer for both monochromatic and polychromatic light in the visible range, serving as an exemplar for new generation actinometers.
Article
Chemistry, Physical
Benjamin Wriedt, Dirk Ziegenbalg
Summary: Efficiency evaluation of newly designed photoreactors is crucial for systematic development and optimization of photochemical processes. Actinometry, especially the widely studied ferrioxalate system, is a suitable tool for this purpose. However, reproducibility problems arise in measurements under intense irradiation, leading to systematically wrong measurements due to a drop in quantum yield at high incident photon fluxes. To ensure reliable measurements with the ferrioxalate actinometer, continuous operation mode or extensive mixing should be ensured.
Article
Chemistry, Physical
Maria T. Ayala Ayala, Ralf Dillert, Juan Munoz Saldana, Detlef W. Bahnemann
Summary: This study reported the photocatalytic activity of different bismuth-based heterojunctions in aqueous suspension using a black body-like reactor. Photon flux was determined by chemical actinometry, and methanol oxidation was measured as a model compound. The mechanism of charge transfer in the photocatalytic reaction was demonstrated.
APPLIED CATALYSIS A-GENERAL
(2022)
Article
Biochemistry & Molecular Biology
Melanie Roseau, Laetitia Chausset-Boissarie, Sylvain Gremetz, Philippe M. C. Roth, Mael Penhoat
Summary: This study reports the characterization of commercially available Corning (R) Lab Photo Reactor using azobenzene E <-> Z photoisomerization for actinometry. Compared to previous chemical actinometric protocols, this method based on NMR spectroscopy is rapid, cheap, robust, reproducible, and applicable to the UVA-visible range.
PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
(2022)
Article
Environmental Sciences
Israel J. Lopez-Prieto, Minkyu Park, Mojtaba AzadiAghdam, Hongrui Pan, Sara L. Jones, Shane A. Snyder
Summary: Different groups of disinfection by-products (DBPs) were studied during the degradation of iopamidol by the sequential oxidation process and chlorination. The results showed that increasing chlorine contact time resulted in higher concentrations of all DBP groups, except for iodinated-DBPs. The study also detected new iodinated DBPs, suggesting further research is needed in this area.
Article
Engineering, Environmental
Paul Kant, Laura L. Trinkies, Nils Gensior, Domenik Fischer, Michael Rubin, Geoffrey Alan Ozin, Roland Dittmeyer
Summary: This study reports a novel approach for accurately determining quantum yields based on a tailored, 3D-printable photoreactor and 3D optical modeling. The method allows for the control of the homogeneous distribution of photon absorption rate throughout the reaction volume and is applicable to any gas, liquid, or multi-phase photoreaction. The validity of the approach is demonstrated with experimental results, highlighting the importance of meticulous analysis and standardization in determining quantum yields.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Jeferson Segalin, Juliana Bazzan Arsand, Louise Jank, Cristiane Storck Schwalm, Livia Streit, Tania Mara Pizzolato
Summary: This study investigates the degradation processes of three antimicrobials in water and assesses the toxicity of their transformation products. Experimental results and model predictions revealed the degradation pathways and toxic characteristics of these transformation products.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Physical
Barbara Reiss, Qi Hu, Eberhard Riedle, Hans-Achim Wagenknecht
Summary: This study investigates the dependence of reaction quantum yields on incident light power and irradiation time, revealing that this parameter is not a single value but influenced by multiple factors. Additionally, it is shown that light input determines the interplay between closed photoredox catalytic cycle and radical chain propagation.
Article
Engineering, Environmental
Ben Ma, Yarrow S. Linden, Patricia M. Gundy, Charles P. Gerba, Mark D. Sobsey, Karl G. Linden
Summary: The study found that UVC devices can effectively inactivate enveloped viruses, with KrCl* excimer showing the best disinfection performance. Coronaviruses showed similar sensitivities to UV irradiation across different UVC wavelengths, while the bacteriophage surrogate was more resistant and exhibited higher sensitivity to Far UVC irradiation.
ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
(2021)
Article
Engineering, Environmental
P. Sperle, A. Mirlach, K. Linden, U. Huebner, J. E. Drewes
Summary: The applicability of chemical actinometry in UV reactors with reflections, non-parallel light, and variable water transmittance is limited due to unknown factors within the reactor. This study developed a new method for determining fluence by examining the effects of reflection and transmittance on actinometry. The method was validated by comparing results to biodosimetry and showed promise in characterizing complex reactor designs and quantifying fluence for advanced oxidation processes.
Article
Engineering, Environmental
Irina Shulga, Parmila Devi, Ajay. K. Dalai
Summary: The study found that the concentration and speciation of chloramines depend strongly on solution pH and chlorine to ammonia molar ratios. Among the chloramines, NCl3 showed the fastest depletion with a quantum yield of 2.16 mol E-1. Kinetics study showed that the rate of photodecay and quantum yield of NCl3 was 8-times and 13-times higher than NHCl2 and NH2Cl, respectively.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Engineering, Chemical
P. Sperle, M. S. Khan, B. Skibinski, C. Wurzbacher, J. E. Drewes
Summary: This study investigated the effect of increasing fluence rate during pulsed UV disinfection on inactivation and tested the optimal UV irradiation for biofouling control. The results showed that pulsed UV disinfection resulted in delayed biofilm formation but did not enhance microbial inactivation.
Article
Engineering, Environmental
Marco Scheurer, Karsten Noedler, Finnian Freeling, Joachim Janda, Oliver Happel, Marcel Riegel, Uwe Mueller, Florian Ruediger Storck, Michael Fleig, Frank Thomas Lange, Andrea Brunsch, Heinz-Juergen Brauch
Article
Environmental Sciences
Thomas Mani, Pascal Blarer, Florian R. Storck, Marco Pittroff, Theo Wernicke, Patricia Burkhardt-Holm
ENVIRONMENTAL POLLUTION
(2019)
Article
Biochemical Research Methods
Dominic Armbruster, Uwe Mueller, Oliver Happel
JOURNAL OF CHROMATOGRAPHY A
(2019)
Article
Engineering, Environmental
Eva-Maria Buchner, Oliver Happel, Carsten K. Schmidt, Marco Scheurer, Beat Schmutz, Meike Kramer, Martina Knauer, Stefan Gartiser, Henner Hollert
Article
Biochemical Research Methods
Yanina K. Mueller, Theo Wernicke, Marco Pittroff, Cordula S. Witzig, Florian R. Storck, Josef Klinger, Nicole Zumbuelte
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2020)
Article
Biochemical Research Methods
Dominic Armbruster, Eduard Rott, Ralf Minke, Oliver Happel
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2020)
Article
Environmental Sciences
Eduard Rott, Oliver Happel, Dominic Armbruster, Ralf Minke
Article
Environmental Sciences
Eduard Rott, Oliver Happel, Dominic Armbruster, Ralf Minke
Article
Environmental Sciences
Marco Pittroff, Yanina K. Mueller, Cordula S. Witzig, Marco Scheurer, Florian R. Storck, Nicole Zumbuelte
Summary: The study presented a comprehensive and validated analytical workflow for MP analysis in water, with initial results indicating no significant contamination in drinking water and groundwater.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Geography, Physical
Nico Molg, Christian Huggel, Thilo Herold, Florian Storck, Simon Allen, Wilfried Haeberli, Yvonne Schaub, Daniel Odermatt
Summary: The study tracks the evolution of 1192 lakes formed in the deglaciated area since the end of the Little Ice Age over a period of nearly 170 years, noting the majority of lakes are small in size and the fluctuation in numbers at different time periods. Additionally, it was found that approximately 40% of the modeled overdeepened areas eventually became covered by lakes, indicating that incorporating morphological criteria helps in determining the probability of lake formation.
EARTH SURFACE PROCESSES AND LANDFORMS
(2021)
Article
Environmental Sciences
Ines Heisterkamp, Stefan Gartiser, Ute Schoknecht, Oliver Happel, Ute Kalbe, Martina Kretzschmar, Outi Ilvonen
Summary: In order to improve the sustainability of construction materials, the leaching of substances from construction products and their potential environmental impact should be assessed. A combination of standardized leaching tests and biotests were conducted on 27 construction products from different product groups. Many of the tested eluates showed significant ecotoxic effects, especially grouts and cork granules. The identification of the released substances and their toxicity classification can help prioritize the harmful components in construction products.
ENVIRONMENTAL SCIENCES EUROPE
(2023)
Article
Environmental Sciences
Ute Schoknecht, Ute Kalbe, Ines Heisterkamp, Martina Kretzschmar, Stefan Gartiser, Oliver Happel, Outi Ilvonen
Summary: By studying the ecotoxic effects of eluates from different types of joint grouts, we can understand whether environmentally hazardous substances can leach from construction products. Combining ecotoxicity tests and chemical analysis helps to identify the substances that cause these effects, thus supporting the development of environmentally friendly construction products.
ENVIRONMENTAL SCIENCES EUROPE
(2022)
Article
Chemistry, Analytical
Joachim Janda, Karsten Noedler, Marco Scheurer, Oliver Happel, Gudrun Nuerenberg, Christian Zwiener, Frank Thomas Lange
ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS
(2019)
Article
Engineering, Environmental
Garyfalia A. Zoumpouli, Marco Scheurer, Heinz-Juergen Brauch, Barbara Kasprzyk-Hordern, Jannis Wenk, Oliver Happel
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2019)
Article
Environmental Sciences
Toshimi Nakajima, Mao Kuragano, Makoto Yamada, Ryo Sugimoto
Summary: This study compared the contribution of submarine groundwater discharge (SGD) to river nutrient budgets at nearshore and embayment scales, and found that SGD-derived nutrients become more important at larger spatial scales.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Fan Liu, Lei Zhang, Chongyang Zhang, Ziguang Chen, Jingguang Li
Summary: NO2 emissions from wall-mounted gas stoves used for household heating have become a significant source of indoor pollution in Chinese urban areas. The high indoor concentration of NO2 poses potential health risks to residents. It is urgently necessary to establish relevant regulations and implement emission reduction technologies to reduce NO2 emissions from wall-mounted gas stoves.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Letter
Environmental Sciences
Hans Peter H. Arp, Raoul Wolf, Sarah E. Hale, Sivani Baskaran, Juliane Gluege, Martin Scheringer, Xenia Trier, Ian T. Cousins, Harrie Timmer, Roberta Hofman-Caris, Anna Lennquist, Andre D. Bannink, Gerard J. Stroomberg, Rosa M. A. Sjerps, Rosa Montes, Rosario Rodil, Jose Benito Quintana, Daniel Zahn, Herve Gallard, Tobias Mohr, Ivo Schliebner, Michael Neumann
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Philomina Onyedikachi Peter, Binessi Edouard Ifon, Francois Nkinahamira, Kayode Hassan Lasisi, Jiangwei Li, Anyi Hu, Chang-Ping Yu
Summary: This study investigates the relationship between dissolved organic matter (DOM) and Rare Earth Elements (REEs) in sediments from Yundang Lagoon, China. The results show four distinct fluorescent components, with protein-like substances being the most prevalent. Additionally, the total fluorescence intensity and LREE concentrations exhibit a synchronized increase from Outer to Inner to Songbai Lake core sediments. The findings demonstrate a strong correlation between DOM content and pollution levels.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Surya Gupta, Pasquale Borrelli, Panos Panagos, Christine Alewell
Summary: The objective of this study is to incorporate soil hydraulic properties into the erodibility factor (K) of USLE-type models. By modifying and improving the existing equations for soil texture and permeability, the study successfully included information on saturated hydraulic conductivity (Ksat) into the calculation of K factor. Using the Random Forest machine learning algorithm, two independent K factor maps with different spatial resolutions were generated. The results show that the decrease in K factor values has a positive impact on the modeling of soil erosion rates.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jesmin Akter, Wendy J. M. Smith, Yawen Liu, Ilho Kim, Stuart L. Simpson, Phong Thai, Asja Korajkic, Warish Ahmed
Summary: The choice of workflow in wastewater surveillance has a significant impact on SARS-CoV-2 concentrations, while having minimal effects on HF183 and no effect on HAdV 40/41 concentrations. Certain components in the workflow can be interchangeable, but factors such as buffer type, chloroform, and homogenization speed can affect the recovery of viruses and bacteria.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yu Luo, Xueting Yang, Diwei Wang, Hongmei Xu, Hongai Zhang, Shasha Huang, Qiyuan Wang, Ningning Zhang, Junji Cao, Zhenxing Shen
Summary: Atmospheric PM2.5, which can generate reactive oxygen species (ROS), is associated with cardiorespiratory morbidity and mortality. The study found that both the mass concentration of PM2.5 and the DTT activity were higher during the heating season than during the nonheating season. Combustion sources were the primary contributors to DTT activity during the heating season, while secondary formation dominated during the nonheating season. The study also revealed that biomass burning had the highest inherent oxidation potential among all sources investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Erin L. Murphy, Leah R. Gerber, Chelsea M. Rochman, Beth Polidoro
Summary: Plastic pollution has devastating consequences for marine organisms. This study uses a trait-based framework to develop a vulnerability index for marine mammals, seabirds, and sea turtles in Hawai'i. The index ranks 63 study species based on their vulnerability to macroplastic pollution, providing valuable information for species monitoring and management priorities.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Kenji Maurice, Amelia Bourceret, Sami Youssef, Stephane Boivin, Liam Laurent-Webb, Coraline Damasio, Hassan Boukcim, Marc-Andre Selosse, Marc Ducousso
Summary: Growing pressure from climate change and agricultural land use is destabilizing soil microbial community interactions. Little is known about microbial community resistance and adaptation to disturbances, hindering our understanding of recovery latency and implications for ecosystem functioning. This study found that anthropic disturbance and natural disturbance have different effects on the topology and stability of soil microbial networks.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yunhao Li, Yali Feng, Haoran Li, Yisong Yao, Chenglong Xu, Jinrong Ju, Ruiyu Ma, Haoyu Wang, Shiwei Jiang
Summary: Deep-sea mining poses a serious threat to marine ecosystems and human health by disturbing sediment and transmitting metal ions through the food chain. This study developed a new regenerative adsorption material, OMN@SA, which effectively removes metal ions. The adsorption mechanism and performance of the material for metal ion fixation were investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Antonio Medici, Margherita Lavorgna, Marina Isidori, Chiara Russo, Elena Orlo, Giovanni Luongo, Giovanni Di Fabio, Armando Zarrelli
Summary: Valsartan, a widely used antihypertensive drug, has been detected in high concentrations in surface waters due to its unchanged excretion and incomplete degradation in wastewater treatment plants. This study investigated the degradation of valsartan and identified 14 degradation byproducts. The acute and chronic toxicity of these byproducts were evaluated in key organisms in the freshwater trophic chain.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jiang Lin, Lianbao Chi, Qing Yuan, Busu Li, Mingbao Feng
Summary: This study investigated the photodegradation behavior and product formation of two representative pharmaceuticals in simulated estuary water. The study found that the formed transformation products of these pharmaceuticals have potential toxicity on marine organisms, including oxidative stress and damage to cellular components.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Hua Fang, Dongdong Jiang, Ye He, Siyi Wu, Yuehong Li, Ziqi Zhang, Haoting Chen, Zixin Zheng, Yan Sun, Wenxiang Wang
Summary: This study revealed that exposure to lower levels of air pollutants led to decreased pregnancy rates, with PM10, NO2, SO2, and CO emerging as the four most prominent pollutants. Individuals aged 35 and above exhibited heightened susceptibility to pollutants.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Ali Shaan Manzoor Ghumman, Rashid Shamsuddin, Amin Abbasi, Mohaira Ahmad, Yoshiaki Yoshida, Abdul Sami, Hamad Almohamadi
Summary: In this study, inverse vulcanized polysulfides (IVP) were synthesized by reacting molten sulfur with 4-vinyl benzyl chloride, and then functionalized using N-methyl D-glucamine (NMDG). The functionalized IVP showed a high mercury adsorption capacity and a machine learning model was developed to predict the amount of mercury removed. Furthermore, the functionalized IVP can be regenerated and reused, providing a sustainable and cost-effective adsorbent.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Rita Bonfiglio, Renata Sisto, Stefano Casciardi, Valeria Palumbo, Maria Paola Scioli, Erica Giacobbi, Francesca Servadei, Gerry Melino, Alessandro Mauriello, Manuel Scimeca
Summary: This study investigated the presence of aluminum in human colon cancer samples and its potential association with biological processes involved in cancer progression. Aluminum was found in tumor areas of 24% of patients and was associated with epithelial to mesenchymal transition (EMT) and cell death. Additional analyses revealed higher tumor mutational burden and mutations in genes related to EMT and apoptosis in aluminum-positive colon cancers. Understanding the molecular mechanisms of aluminum toxicity may improve strategies for the management of colon cancer patients.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)