Search our Database of Scientific Publications and Authors

I’m looking for a

    18733 results match your criteria Chemosphere[Journal]

    1 OF 375

    Photo-assisted electrochemical abatement of trifluralin using a cathode containing a C-carbon nanotubes composite.
    Chemosphere 2018 Feb 9;199:510-523. Epub 2018 Feb 9.
    School of Mechanical Engineering, Yeungnam University, Gyeongsan, 712-749, South Korea. Electronic address:
    This work reports the potential application of modified gas-diffusion electrode (GDE) with C-CNT composite, as a stable and efficient cathode material for degradation of trifluralin (TRL) pesticide by photo-assisted electrochemical (PE) process. C-CNT composite was prepared and characterized. Subsequently, a novel C-CNT composite modified GDE cathode was developed and the electrochemical and physical characteristics of the modified GDEs were studied. Read More

    Toxicity of lanthanum oxide nanoparticles to the fungus Moniliella wahieum Y12isolated from biodiesel.
    Chemosphere 2018 Feb 8;199:495-501. Epub 2018 Feb 8.
    Hawaii Natural Energy Institute, University of Hawaii at Manoa, 1680 East West Rd., Honolulu, HI 96822, USA. Electronic address:
    Moniliella wahieum Y12, isolated from biodiesel was used as a model organism to assess the use of lanthanum oxide (LaO) (60-80 nm) and silver oxide (AgO) (10-40 nm) nanoparticles as potential fungal inhibitors. This is the first study to investigate the use of nanoscale LaOas a eukaryotic bio-inhibitor. The AgO nanoparticles were relatively effective at inhibiting the growth of M. Read More

    Reactive oxygen and iron species monitoring to investigate the electro-Fenton performances. Impact of the electrochemical process on the biodegradability of metronidazole and its by-products.
    Chemosphere 2018 Feb 13;199:486-494. Epub 2018 Feb 13.
    Univ rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR - UMR6226, F-35000 Rennes, France.
    In this study, the monitoring of reactive oxygen species and the regeneration of the ferrous ions catalyst were performed during electro-Fenton (EF) process to highlight the influence of operating parameters. The removal of metronidazole (MTZ) was implemented in an electrochemical mono-compartment batch reactor under various ranges of current densities, initial MTZ and ferrous ions concentrations, and pH values. It was found that under 0. Read More

    Enhanced electrokinetic remediation of polluted soils by anolyte pH conditioning.
    Chemosphere 2018 Feb 9;199:477-485. Epub 2018 Feb 9.
    University of Castilla-La Mancha, Institute of Technology, Campus Universitario s/n, 16071 Cuenca, Spain.
    In the treatment of a polluted soil, the pH has a strong impact on the development of different physicochemical processes as precipitation/dissolution, adsorption/desorption or ionic exchange. In addition, the pH determines the chemical speciation of the compounds present in the system and, consequently, it conditions the transport processes by which those compounds will move. This question has aroused great interest in the development of pH control technologies coupled to soil remediation processes. Read More

    Farmyard manure alone and combined with immobilizing amendments reduced cadmium accumulation in wheat and rice grains grown in field irrigated with raw effluents.
    Chemosphere 2018 Feb 8;199:468-476. Epub 2018 Feb 8.
    Department of Soil Science, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan, Pakistan.
    Cadmium (Cd) stress is a serious concern in agricultural soils worldwide whereas little is known about the impact of farmyard manure (FYM) alone or combined with limestone, lignite and biochar on Cd concentrations in plants. Wheat was grown in Cd-contaminated field amended with control (T), FYM @ 0.1% (T), FYM + limestone @ 0. Read More

    Stabilization of lead (Pb) and zinc (Zn) in contaminated rice paddy soil using starfish: A preliminary study.
    Chemosphere 2018 Feb 3;199:459-467. Epub 2018 Feb 3.
    Department of Environmental and Energy Engineering, Chonnam National University, Gwangju 61186, Republic of Korea. Electronic address:
    Lead (Pb) and zinc (Zn) contaminated rice paddy soil was stabilized using natural (NSF) and calcined starfish (CSF). Contaminated soil was treated with NSF in the range of 0-10 wt% and CSF in the range of 0-5 wt% and cured for 28 days. Toxicity characteristic leaching procedure (TCLP) test was used to evaluate effectiveness of starfish treatment. Read More

    Selection criteria for oxidation method in total organic carbon measurement.
    Chemosphere 2018 Feb 12;199:453-458. Epub 2018 Feb 12.
    Department of Environmental Engineering and Soil Environment Research Center, Chonbuk National University, 567 Baekje-daero, Deokjin, Jeonju, Jeollabukdo 561-756, Republic of Korea. Electronic address:
    During the measurement of total organic carbon (TOC), dissolved organic carbon is converted into COby using high temperature combustion (HTC) or wet chemical oxidation (WCO). However, the criteria for selecting the oxidation methods are not clear. In this study, the chemical structures of organic material were considered as a key factor to select the oxidation method used. Read More

    Degradation of dye Procion Red MX-5B by electrolytic and electro-irradiated technologies using diamond electrodes.
    Chemosphere 2018 Feb 3;199:445-452. Epub 2018 Feb 3.
    University of Genoa, Department of Civil, Chemical and Environmental Engineering, P.le J.F. Kennedy 1, Genova, 16129, Italy. Electronic address:
    This work focuses on the treatment of synthetic wastewater polluted with dye Procion Red MX-5B by different Electrochemical Advanced Oxidation Processes (EAOP) based on diamond anodes. The influence of the current density and the supporting electrolyte has been studied on dye removal and total mineralization of the organic matter. Results show that electrolysis with diamond electrodes is a suitable technology for an efficient degradation of dye. Read More

    Magnetic Zr-MOFs nanocomposites for rapid removal of heavy metal ions and dyes from water.
    Chemosphere 2018 Feb 7;199:435-444. Epub 2018 Feb 7.
    Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan, 430072, Hubei Province, PR China. Electronic address:
    Amino-decorated Zr-based magnetic Metal-Organic Frameworks composites (Zr-MFCs) were prepared by a facile and efficient strategy. The nano-sized FeO@SiOcore (about 15 nm) was coated with a shell of Zr-MOFs (about 5 nm) by means of in-situ growth. And, FeO@SiO@UiO-66 and its amino derivatives (FeO@SiO@UiO-66-NHand FeO@SiO@UiO-66-Urea) were successfully prepared by using different precursors. Read More

    Combined effect of copper and hydrodynamic conditions on Myriophyllum alterniflorum biomarkers.
    Chemosphere 2018 Feb 9;199:427-434. Epub 2018 Feb 9.
    University of Limoges, Faculty of Pharmacy, FR 3503, GRESE EA 4330 - Laboratory of Botany and Crytpogamy, 2 rue Dr. Marcland, 87025 Limoges, France. Electronic address:
    The aim of this study is to determine the combined effect of copper and hydrodynamic conditions on the response of certain biomarkers of an aquatic macrophyte, namely Myriophyllum alterniflorum. Watermilfoil biomarkers are monitored in a synthetic medium enriched or not with copper (100 μg.L) for 21 days in aquarium systems (150 L), under three hydrodynamic conditions: laminar, turbulent, and calm. Read More

    Effect of selenium-enriched organic material amendment on selenium fraction transformation and bioavailability in soil.
    Chemosphere 2018 Feb 5;199:417-426. Epub 2018 Feb 5.
    College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, China. Electronic address:
    To exploit the plant byproducts from selenium (Se) biofortification and reduce environmental risk of inorganic Se fertilizer, pot experiment was conducted in this study. The effects of Se-enriched wheat (Triticum aestivum L.) straw (WS + Se) and pak choi (Brassica chinensis L. Read More

    Applying no-depletion equilibrium sampling and full-depletion bioaccessibility extraction to 35 historically polycyclic aromatic hydrocarbon contaminated soils.
    Chemosphere 2018 Feb 3;199:409-416. Epub 2018 Feb 3.
    Agroscope, Environmental Analytics, Reckenholzstrasse 191, 8046, Zurich, Switzerland. Electronic address:
    Assessing the bioaccessibility of organic pollutants in contaminated soils is considered a complement to measurements of total concentrations in risk assessment and legislation. Consequently, methods for its quantification require validation with historically contaminated soils. In this study, 35 such soils were obtained from various locations in Switzerland and Cuba. Read More

    Synthesis of a stable magnesium-impregnated biochar and its reduction of phosphorus leaching from soil.
    Chemosphere 2018 Feb 9;199:402-408. Epub 2018 Feb 9.
    School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, PR China. Electronic address:
    Biochar improves soil fertility and promotes long-term terrestrial carbon sequestration. However, biochar seems not to be stable enough due to physical, chemical and biological reactions. In this study, a novel, stable, and magnesium (Mg)-impregnated biochar was prepared from cow dung and applied to decrease P leaching from soil. Read More

    Transcriptomic analysis of boron hyperaccumulation mechanisms in Puccinellia distans.
    Chemosphere 2018 Feb 12;199:390-401. Epub 2018 Feb 12.
    Department of Molecular Biology and Genetics, Izmir Institute of Technology, Urla, Izmir 35430, Turkey. Electronic address:
    Puccinellia distans, common alkali grass, is found throughout the world and can survive in soils with boron concentrations that are lethal for other plant species. Indeed, P. distans accumulates very high levels of this element. Read More

    Levels, sources, and potential human health risks of PCNs, PCDD/Fs, and PCBs in an industrial area of Shandong Province, China.
    Chemosphere 2018 Feb 9;199:382-389. Epub 2018 Feb 9.
    College of Life and Environmetal Sciences, Minzu University of China, Beijing 100081, China; Engineering Research Center of Food Environment and Public Health, Beijing 100081, China.
    Polychlorinated naphthalenes (PCNs), polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), and polychlorinated biphenyls (PCBs) are of public concern worldwide because of their persistence and toxicity. To address the human health risks of these pollutants and identify possible sources, soil samples were collected from an industrial area and surrounding residential area in Shandong Province, China. The PCN, PCDD/F, and PCB levels in these samples were determined. Read More

    H NMR-based metabolomics reveals interactive effects between the carrier solvent methanol and a pharmaceutical mixture in an amphibian developmental bioassay with Limnodynastes peronii.
    Chemosphere 2018 Feb 10;199:372-381. Epub 2018 Feb 10.
    Australian Rivers Institute, Griffith University, Southport QLD, 4222, Australia; Australian Centre for Research on Separation Science, School of Science, RMIT University, GPO Box 2476, Melbourne, VIC, 3001, Australia.
    Organic carrier solvents are used in aquatic toxicity testing to improve chemical solubility and facilitate the exploration of dose-response relationships. Both water- and solvent-control groups are normally included in these scenarios to ensure that the solvent itself has no effect on the test organism, but this fails to consider possible interactive effects between carrier solvents and contaminants of interest. We explored this topic by exposing Limnodynastes peronii tadpoles to a mixture of common water-soluble pharmaceuticals (diclofenac, metformin and valproic acid) in the presence and absence of the carrier solvent methanol, according to standard developmental bioassay methodology. Read More

    Heavy metal accumulation, risk assessment and integrated biomarker responses of local vegetables: A case study along the Le'an river.
    Chemosphere 2018 Feb 8;199:361-371. Epub 2018 Feb 8.
    College of Water Conservancy and Ecological Engineering, Nanchang Institute of Technology, Nanchang, 330099, China.
    In this research, Ganzhou Chinese Cabbage (Brassica rapa pekinensis), Native Purple Garlic (Allium sativum L) and Leping Radish (Raphanus sativus L) widely planted and distributed along the Le'an River were chosen in the present study. Soil physical-chemical properties, nutrients contents as well as heavy metals elements accumulated in both soils and vegetables collected from 24 sites were analyzed by lab analysis combined with statistical method which was also used for calculation of contamination factor, pollution indexes and hazardous index. Heavy metals accumulation in soils were revealed with higher level, and copper and cadmium exceeded the background values by 8. Read More

    Effect of U(VI) aqueous speciation on the binding of uranium by the cell surface of Rhodotorula mucilaginosa, a natural yeast isolate from bentonites.
    Chemosphere 2018 Feb 9;199:351-360. Epub 2018 Feb 9.
    Department of Microbiology, University of Granada, Granada, Spain.
    This study presents the effect of aqueous uranium speciation (U-hydroxides and U-hydroxo-carbonates) on the interaction of this radionuclide with the cells of the yeast Rhodotorula mucigilanosa BII-R8. This strain was isolated from Spanish bentonites considered as reference materials for the engineered barrier components of the future deep geological repository of radioactive waste. X-ray absorption and infrared spectroscopy showed that the aqueous uranium speciation has no effect on the uranium binding process by this yeast strain. Read More

    Effect of selenium on Penaeus monodon and Perna viridis: Enzyme activities and histopathological responses.
    Chemosphere 2018 Feb 10;199:340-350. Epub 2018 Feb 10.
    Integrated Coastal and Marine Area Management, Government of India, Ministry of Earth Sciences, NIOT Campus, Chennai, Tamil Nadu, India. Electronic address:
    The study was carried out to evaluate enzyme activities and histopathological changes due to the effect of acute and chronic definitive toxicity of selenium (Se) on the post larvae (PL) of giant tiger shrimp (Penaeus monodon), and green mussel (Perna viridis). The 96-h Median Lethal concentration (LC) for the PL of shrimp was 3.36 mg Land the chronic value for the long-term survival endpoint in a 21-d exposure was 0. Read More

    Trace element dynamics of biosolids-derived microbeads.
    Chemosphere 2018 Feb 1;199:331-339. Epub 2018 Feb 1.
    Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, 10250, Sri Lanka.
    This study focused on quantifying and characterising microbeads in biosolids (i.e., treated sewage sludge), and in examining interactions of microbeads with trace elements when biosolids are added to soil. Read More

    Influence of ore processing activity on Hg, As and Sb contamination and fractionation in soils in a former mining site of Monte Amiata ore district (Italy).
    Chemosphere 2018 Feb 9;199:320-330. Epub 2018 Feb 9.
    Department of Environmental, Earth and Physical Sciences, University of Siena, Via del Laterino 8, I-53100, Siena, Italy.
    A geochemical study was carried out at the former Abbadia San Salvatore (ASS) mining site of the Monte Amiata ore district (Italy). Hg, As and Sb total contents and fractionation using a sequential extraction procedure were determined in soil and mining waste samples. Ore processing activities provided a different contribution to Hg contamination and concentration in soil fractions, influencing its behaviour as volatility and availability. Read More

    Insights on the criteria of selection of vegetable and mineral dielectric fluids used in power transformers on the basis of their biodegradability and toxicity assessments.
    Chemosphere 2018 Feb 7;199:312-319. Epub 2018 Feb 7.
    The "Stephan Angeloff" Institute of Microbiology-Bulgarian Academy of Sciences, Acad. G. Bonchev str., Bl. 26, Sofia 1113, Bulgaria.
    Leakage of transformer dielectric fluids is a concern because it may pose a risk of environmental contamination. In this study, the deleterious effects of vegetable and mineral dielectric fluids in water bodies were investigated using biodegradability and acute toxicity tests with Danio rerio and Artemia salina. Regarding biodegradability, all four tested vegetable oils (soy, canola, sunflower and crambe) were considered as easily biodegradable, presenting degradation rates significantly higher than the Lubrax-type mineral fluid. Read More

    Assessment of soil metal concentrations in residential and community vegetable gardens in Melbourne, Australia.
    Chemosphere 2018 Feb 8;199:303-311. Epub 2018 Feb 8.
    Centre for Environmental Sustainability and Remediation, RMIT University, PO Box 71, Bundoora, Victoria 3083, Australia.
    Gardening and urban food production is an increasingly popular activity, which can improve physical and mental health and provide low cost nutritious food. However, the legacy of contamination from industrial and diffuse sources may have rendered surface soils in some urban gardens to have metals value in excess of recommended guidelines for agricultural production. The objective of this study was to establish the presence and spatial extent of soil metal contamination in Melbourne's residential and inner city community gardens. Read More

    PI3K/AKT signaling pathway involvement in fluoride-induced apoptosis in C2C12 cells.
    Chemosphere 2018 Feb 9;199:297-302. Epub 2018 Feb 9.
    Henan Provincial Open Laboratory of Key Disciplines, Environment and Animal Products Safety, College of Animal Science and Technology, Henan University of Science and Technology, Kaiyuan Avenue 263, Luoyang, Henan, 471000, PR China. Electronic address:
    To investigate the mechanisms of fluoride-induced apoptosis, a fluoride-induced C2C12 skeletal muscle cell (C2C12 cell) model was established in this study, and the viability of the C2C12 cells was measured using an MTT assay. Cell morphological changes were observed via haematoxylin and eosin staining and transmission electron microscopy. Apoptosis was monitored through Hoechst staining. Read More

    Bisphenol S induces obesogenic effects through deregulating lipid metabolism in zebrafish (Danio rerio) larvae.
    Chemosphere 2018 Feb 3;199:286-296. Epub 2018 Feb 3.
    College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China. Electronic address:
    It has been suggested that dramatic increase in obesity may be caused by growing exposure to environmental chemicals. In vitro data has suggested bisphenol S (BPS), a compound widely used in polycarbonate plastic production, can induce lipid accumulation in preadipocytes. However, the mechanisms responsible for BPS-induced obesity in vivo remain unclear. Read More

    Factors affecting theBe surface concentration and its extremely high occurrences over the Scandinavian Peninsula during autumn and winter.
    Chemosphere 2018 Feb 9;199:278-285. Epub 2018 Feb 9.
    European Commission, Joint Research Centre, Knowledge for Nuclear Security and Safety Unit Radioactivity Environmental Monitoring Group, Via Enrico Fermi 2749, I-21027, Ispra, VA, Italy. Electronic address:
    Relationships between the beryllium-7 activity concentrations in surface air and meteorological parameters (temperature, atmospheric pressure, and precipitation), teleconnection indices (Arctic Oscillation, North Atlantic Oscillation, and Scandinavian pattern) and number of sunspots are investigated using two multivariate statistical techniques: hierarchical cluster and factor analysis. The beryllium-7 surface measurements over 1995-2011, at four sampling sites located in the Scandinavian Peninsula, are obtained from the Radioactivity Environmental Monitoring Database. In all sites, the statistical analyses show that the beryllium-7 concentrations are strongly linked to temperature. Read More

    Map of impact by acid mine drainage in the river network of The Iberian Pyrite Belt (Sw Spain).
    Chemosphere 2018 Feb 8;199:269-277. Epub 2018 Feb 8.
    Grupo de Investigación en Ingeniería Minera Sostenible (IMINSO), Escuela Técnica Superior de Ingeniería, Universidad de Huelva, Ctra. Palos de la Frontera, s/n 21819 Palos de la Frontera, Huelva, Spain.
    The Iberian Pyrite Belt (IPB), in the southwest of Europe, is characterized by high levels of contamination by acid mine drainage (AMD) in a large extent of its river network. In this scenario, it is necessary to characterize the degree of pollution of the mining leachates in the AMD-generating sources as well as of the main receiving watercourses. A map of impact of each basin was developed, based on the model proposed by Grande (2011) and the European Directive 98/83/EC that defines the quality standards for drinking water. Read More

    Influence of chloride on the 185 nm advanced oxidation process.
    Chemosphere 2018 Feb 3;199:263-268. Epub 2018 Feb 3.
    Department of Chemical and Biological Engineering, 2360 East Mall, University of British Columbia, Vancouver, BC V6T 1Z3, Canada. Electronic address:
    The use of 185 nm radiation from a conventional low pressure mercury lamp generates the hydroxyl radical (OH) from the photolysis of water and offers an advanced oxidation process (AOP) for water treatment that does not require chemical addition. However, the influence of the water matrix on the process differs substantially from that of other ultraviolet and ozone based processes. In particular chloride (Cl), and not water, absorbs the majority of 185 nm photons when [Cl]>20mgLand generates the chlorine atom radical (Cl) as a reactive species. Read More

    Impact of enzymatic hydrolysis on the quantification of total urinary concentrations of chemical biomarkers.
    Chemosphere 2018 Feb 12;199:256-262. Epub 2018 Feb 12.
    Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, 4770 Buford Hwy, Mailstop F-53, Atlanta, GA 30341, USA.
    Human exposure to consumer and personal care products chemicals such as phenols, including parabens and other antimicrobial agents, can be assessed through biomonitoring by quantifying urinary concentrations of the parent chemical or its metabolites, often after hydrolysis of phase II conjugates. Developing suitable analytical methods for the concurrent quantification of multiple exposure biomarkers is challenging because optimal conditions for the hydrolysis of such conjugates (e.g. Read More

    Novel arrangement for an electro-Fenton reactor that does not require addition of iron, acid and a final neutralization stage. Towards the development of a cost-effective technology for the treatment of wastewater.
    Chemosphere 2018 Feb 8;199:251-255. Epub 2018 Feb 8.
    Centro de Investigación y Desarrollo Tecnológico en Electroquímica, CIDETEQ, Pedro Escobedo, P.O. Box 064, Querétaro, 76703, Mexico. Electronic address: http://www.cideteq.mx.
    A novel arrangement for an electro-Fenton reactor aimed to treat neutral wastewater is presented. The arrangement consists on three-compartments in series, two of them packed with a cation exchange resin and one positioned between these, containing a polarized activated carbon column where the electrochemical generation of the Fenton reagent takes place. While the hydroxyl radicals electrochemically produced in-situ, react with the pollutant species adsorbed on the activated carbon cathode, the resin compartments administrate and collect the iron cation and the hydrated proton species in alternating flow direction cycles. Read More

    Gene expression in Pseudomonas aeruginosa exposed to hydroxyl-radicals.
    Chemosphere 2018 Feb 3;199:243-250. Epub 2018 Feb 3.
    Department of Molecular Microbiology and Biotechnology, Faculty of Life Sciences, Tel Aviv University, Tel Aviv 69978, Israel.
    Recent studies have shown the efficiency of hydroxyl radicals generated via ultraviolet (UV)-based advanced oxidation processes (AOPs) combined with hydrogen peroxide (UV/HO) as a treatment process in water. The effects of AOP treatments on bacterial gene expression was examined using Pseudomonas aeruginosa strain PAO1 as a model-organism bacterium. Many bacterial genes are not expressed all the time, but their expression is regulated. Read More

    Enhanced reactivity of nZVI embedded into supermacroporous cryogels for highly efficient Cr(VI) and total Cr removal from aqueous solution.
    Chemosphere 2018 Feb 7;199:232-242. Epub 2018 Feb 7.
    School of Chemistry & Environment, South China Normal University, Guangzhou, 510006, China.
    Novel supermacroporous PSA-nZVI composites with nanoscale zero-valent iron particles (nZVI) embedded into poly (sodium acrylate) (PSA) cryogels were synthesized through ion exchange followed by in-situ reduction. The magnetic composites were evaluated for material characterizations and their efficiency for Cr(VI) and total Cr removal from aqueous medium in batch experiments. PSA-nZVI composites with high nZVI loading capacity up to 128. Read More

    Inorganic mercury (Hg) accumulation in autotrophic and mixotrophic planktonic protists: Implications for Hg trophodynamics in ultraoligotrophic Andean Patagonian lakes.
    Chemosphere 2018 Feb 8;199:223-231. Epub 2018 Feb 8.
    Grupo de Ecología de Sistemas Acuáticos a Escala de Paisaje, Instituto de Investigaciones en Biodiversidad y Medioambiente (INIBIOMA, UNComahue-CONICET), Quintral 1250, 8400, San Carlos de Bariloche, Río Negro, Argentina.
    Microbial assemblages are typical of deep ultraoligotrophic Andean Patagonian lakes and comprise picoplankton and protists (phytoflagellates and mixotrophic ciliates), having a central role in the C cycle, primary production and in the incorporation of dissolved inorganic mercury (Hg) into lake food webs. In this study we evaluated the mechanisms of Hgincorporation in hetero- and autotrophic bacteria, in the autotrophic dinoflagellate (Gymnodinium paradoxum) and in two mixotrophic ciliates (Stentor araucanus and Ophrydium naumanni) dominating the planktonic microbial assemblage. The radioisotopeHg was used to trace the Hgincorporation in microbiota. Read More

    Biosorption of heavy metals by obligate halophilic fungi.
    Chemosphere 2018 Feb 8;199:218-222. Epub 2018 Feb 8.
    Southwest University of Science and Technology, Mianyang, Sichuan 621010, China; Institute of Biochemistry, University of Balochistan, Quetta 87300, Pakistan; Plant Biomass Utilization Research Unit, Botany Department, Chulalongkorn University, Bangkok 10330, Thailand. Electronic address:
    The presence of heavy metals in the environment poses a serious threat to human health. Remediation of this problem using microorganisms has been widely researched to find a sustainable solution. Obligate halophilic fungi comprising Aspergillus flavus, Aspergillus gracilis, Aspergillus penicillioides (sp. Read More

    Isolation and characterization of a quinclorac-degrading Actinobacteria Streptomyces sp. strain AH-B and its implication on microecology in contaminated soil.
    Chemosphere 2018 Feb 3;199:210-217. Epub 2018 Feb 3.
    Department of Chemical Engineering, Tsinghua University, Beijing, 100084, PR China. Electronic address:
    Quinclorac, a highly selective auxin herbicide, is widely used for controlling weeds in rice field. However, the residual quinclorac is toxic to many crops, vegetables, and aquatic animals, resulting in one of the major problems in crop rotation. Here, we investigated the degradation of quinclorac by strain AH-B, which was isolated from long-term quinclorac-contaminated soil using continuous circulating fluidized bed reactor and subjected to atmospheric and room temperature plasma mutation. Read More

    Pretreatment of anaerobic digester samples by hydrochloric acid for solution-stateH andC NMR spectroscopic characterization of organic matter.
    Chemosphere 2018 Feb 5;199:201-209. Epub 2018 Feb 5.
    Department of Thematic Studies-Environmental Change and Biogas Research Center, Linköping University, 581 83 Linköping, Sweden.
    Pretreatment of anaerobic digester samples by hydrochloric acid (HCl) resulted in removal of Fe-based mineral and coordination compounds, attenuating their interferences with solution-state nuclear magnetic resonance (NMR) spectroscopic characterization of the solid phase organic matter. Substrate (influent) and digestate (effluent) samples from two full-scale anaerobic digesters, designated CD (co-digester) and SSD (sewage sludge digester), were investigated. Pretreatment of CD samples with 0. Read More

    The effect of hazardous pollutants from coal combustion activity: Phytotoxicity assessment of aqueous soil extracts.
    Chemosphere 2018 Feb 7;199:191-200. Epub 2018 Feb 7.
    Institute of Public Health "Dr Andrija Štampar", Department of Environmental Protection and Health Ecology, HR-10000, Zagreb, Croatia.
    Airborne fly ash and related hazardous particles derived from coal combustion contaminate soil and groundwater, negatively affecting ecosystems. The aim of this study was chemical and toxicological evaluation of aqueous extracts of soil collected from the vicinity of a coal-fired Plomin power plant (PPP), using Lemna (Lemna minor L.) bioassay and additional biochemical indicators - photosynthetic pigments, lipid peroxidation, antioxidative enzymes and glutathione. Read More

    Bisphenol A and dibutyl phthalate affect the expression of juxtacrine signaling factors in rat testis.
    Chemosphere 2018 Feb 5;199:182-190. Epub 2018 Feb 5.
    Department of Endocrinology, Institute of Zoology and Biomedical Research, Jagiellonian University, Krakow, Poland. Electronic address:
    The study was designed to examine the effects of model plastic derived compounds, bisphenol A (BPA) and dibutyl phthalate (DBP), on juxtacrine communication in adult rat testis, by evaluating the expression of Notch pathway components. Testicular explant were exposed in vitro to BPA (5 × 10 M, 2.5 × 10 M, 5 × 10 M) or DBP (10 M, 10 M, 10 M) for 24 h. Read More

    Equilibrium biopartitioning of organic anions - A case study for humans and fish.
    Chemosphere 2018 Feb 6;199:174-181. Epub 2018 Feb 6.
    Helmholtz Centre for Environmental Research UFZ, Department of Analytical Environmental Chemistry, Permoserstr. 15, D-04318 Leipzig, Germany.
    In this work we combine partition coefficients between water and membrane lipid, storage lipid, the plasma protein albumin as well as structural protein with the tissue dependent fraction of the respective phases in order to obtain a clearer picture on the relevance of various biological tissues for the bioaccumulation of 31 organic anions. Most of the partition coefficients are based on experimental data, supplemented by some predicted ones. The data suggest that the plasma protein, albumin, will be the major sorption matrix in mammals. Read More

    Perfluoroalkylsulfonic and carboxylic acids in earthworms (Eisenia fetida): Accumulation and effects results from spiked soils at PFAS concentrations bracketing environmental relevance.
    Chemosphere 2018 Feb 7;199:168-173. Epub 2018 Feb 7.
    Department of Environmental Toxicology and The Institute of Environmental and Human Health (TIEHH), Texas Tech University, Box 41163, Lubbock, TX 79409, USA. Electronic address:
    Effects of perfluorobutanesulfonic acid (PFBS), perfluorohexanesulfonic acid (PFHxS), perfluorononanoic acid (PFNA), and perfluoroheptanoic acid (PFHpA) on earthworms (Eisenia fetida) in soils contaminated with these compounds at 0.1, 1, 10, 1,000, and 100,000 μg kgdry weight, covering concentration levels found in background, biosolid-amended, and facility-surrounding soils, were investigated. Earthworms were exposed to spiked soil for 21 days. Read More

    Leach of the weathering crust elution-deposited rare earth ore for low environmental pollution with a combination of (NH)SOand EDTA.
    Chemosphere 2018 Feb 3;199:160-167. Epub 2018 Feb 3.
    Beijing Z.D.H.K. Environmental Science & Technology Co., Ltd, Beijing, 100011, PR China.
    High concentration of ammonium sulfate, a typical leaching agent, was often used in the mining process of the weathering crust elution-deposited rare earth ore. After mining, a lot of ammonia nitrogen and labile heavy metal fractions were residual in tailings, which may result in a huge potential risk to the environment. In this study, in order to achieve the maximum extraction of rare earth elements and reduce the labile heavy metal, extraction effect and fraction changes of lanthanum (La) and lead (Pb) in the weathering crust elution-deposited rare earth ore were studied by using a compound agent of (NH)SO-EDTA. Read More

    In vitro nuclear receptor inhibition and cytotoxicity of hydraulic fracturing chemicals and their binary mixtures.
    Chemosphere 2018 Jan 9. Epub 2018 Jan 9.
    CSIRO Land & Water, Locked bag 2, Glen Osmond, SA 5064, Australia. Electronic address:
    The widespread use of hydraulic fracturing (HF) in oil and gas extraction operations has led to concern over environmental risks posed by chemicals used in HF fluids. Here we employed a suite of stable luciferase reporter gene assays to investigate the potential for selected HF chemicals or geogenics to activate or antagonise nuclear receptor signalling. We screened three biocides (bronopol [BP], glutaraldehyde [GA], and tetrakis(hydroxymethyl)phosphonium sulfate [THPS]), a surfactant (2-butoxyethanol), a friction reducer (polyacrylamide), and a coal seam geogenic (o-cresol) for their potential to act as agonists or antagonists of the estrogen receptor, androgen receptor, progesterone receptor (PR), glucocorticoid receptor or peroxisome proliferator-activated receptor gamma (PPARγ). Read More

    Environmental risk assessment of the emerging EDCs contaminants from rural soil and aqueous sources: Analytical and modelling approaches.
    Chemosphere 2018 Jan 19;198:546-555. Epub 2018 Jan 19.
    Key Laboratory of Regional Environment and Eco-restoration (Shenyang University), Ministry of Education, Shenyang 110044, China; College of Environment and Recourses, Jilin University, Changchun 130012, China. Electronic address:
    The emerging endocrine disrupting chemicals posed high risk and much uncertainty to eco-environment and human health. An analytical method, developed for the simultaneous determination of five steroid estrogens in groundwater and soil based upon solid phase extraction and gas chromatography-mass spectrometry, was applied to investigate the distribution of estrone and 17β-estradiol around Shenyang City with particular focus on penetrating from surface to groundwater in this study. Mean concentrations of the estrone and 17β-estradiol were 55. Read More

    Applying molecular modelling and experimental studies to develop molecularly imprinted polymer for domoic acid enrichment from both seawater and shellfish.
    Chemosphere 2018 Feb 3;199:98-106. Epub 2018 Feb 3.
    School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.
    A highly selective sample cleanup method using molecularly imprinted polymers (MIP) was developed for the enrichment of domoic acid (DA, an amnesic shellfish toxin) from both seawater and shellfish samples. Molecular modelling was firstly applied to screening a suitable functional monomer and optimize the polymer preparation. Theoretical results were in a good agreement with those of the experimental studies. Read More

    Seasonal variations of PCDD/Fs congeners in air, soil and eggs from a Polish small-scale farm.
    Chemosphere 2018 Feb 3;199:89-97. Epub 2018 Feb 3.
    Cracow University of Technology, Faculty of Chemical Engineering and Technology, Warszawska 24 Street, 31-155, Cracow, Poland. Electronic address:
    The transfer of dioxin from the environment to the food is a problem in a consumers' health protection. The study aimed to determine the concentration of dioxins in free-range chicken eggs, air and soil samples, collected during 12 months on an individual small farm, located in Małopolska region, Poland. In the majority of analyzed eggs, the concentrations of dioxin exceeded several times the legal limit of 2. Read More

    Peroxymonosulfate/base process in saline wastewater treatment: The fight between alkalinity and chloride ions.
    Chemosphere 2018 Feb 6;199:84-88. Epub 2018 Feb 6.
    International Center for Balanced Land Use (ICBLU), The University of Newcastle, Callaghan, NSW, 2308, Australia. Electronic address:
    Both Cland base can affect PMS activation to produce reactive chlorine or oxygen species, but the overall effects of chloride on this emerging PMS/base technology in saline wastewater treatment are unknown. Here effectiveness of PMS/base, PMS/Cland PMS/base/Clis compared with a gradient concentration of chloride and alkalinity, by probing the degradation of methylene blue (MB). Both PMS/base and PMS/Clsystems can rapidly degrade MB due to the generation of singlet oxygen and reactive chlorine, respectively. Read More

    Modeling the interaction and toxicity of Cu-Cd mixture to wheat roots affected by humic acids, in terms of cell membrane surface characteristics.
    Chemosphere 2018 Feb 3;199:76-83. Epub 2018 Feb 3.
    Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, PR China.
    Responses of wheat (Triticum aestivum L.) seedling roots to the mixtures of copper (Cu), cadmium (Cd) and humic acids (HA) were investigated using the solution culture experiments, focusing on the interaction patterns between multiple metals and their influences on root proton release. A concentration-addition multiplication (CA) model was introduced into the modeling analysis. Read More

    Covalent binding of the organophosphate insecticide profenofos to tyrosine on α- and β-tubulin proteins.
    Chemosphere 2018 Feb 9;199:154-159. Epub 2018 Feb 9.
    Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, 1955 East West Road, Honolulu, HI, 96822, USA. Electronic address:
    Organophosphorus (OP) compounds can bind covalently to many types of proteins and form protein adducts. These protein adducts can indicate the exposure to and neurotoxicity of OPs. In the present work, we studied adduction of tubulin with the OP insecticide profenofos in vitro and optimized the method for detection of adducted peptides. Read More

    Oxalate enhanced degradation of Orange II in heterogeneous UV-Fenton system catalyzed by FeO@γ-FeOcomposite.
    Chemosphere 2018 Feb 6;199:147-153. Epub 2018 Feb 6.
    Guangzhou Institute of Geochemistry, Chinese Academy of Sciences (CAS) Guangzhou, 510640, China; Guangdong Provincial Key Laboratory of Mineral Physics and Materials, 510460, China. Electronic address:
    Oxalate enhanced mechanism of FeO@γ-FeOwas developed to provide novel insight into catalytic process regulation of iron oxide catalysts in heterogeneous UV-Fenton system. And the iron oxide composite of FeO@γ-FeOwas characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), fourier transform infrared (FTIR) spectroscopy and nitrogen adsorption-desorption isotherms. The results showed that large amount of iron could be leached from catalyst in the presence of oxalate, which promoted the homogeneous UV-Fenton reactions in solution. Read More

    Hydrolysis, adsorption, and biodegradation of bensulfuron methyl under methanogenic conditions.
    Chemosphere 2018 Feb 5;199:138-146. Epub 2018 Feb 5.
    Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan, Shandong Province 250100, PR China. Electronic address:
    Bensulfuron methyl (BSM), one of the most widely used herbicides in paddy soils, is frequently detected in natural and artificial aquatic systems. However, BSM transformation under methanogenic conditions has not been given sufficient attention. In this study, BSM elimination and transformation by anaerobic enrichment cultures were investigated. Read More

    1 OF 375