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Environmental Sciences Europe

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https://www.readbyqxmd.com/read/27882277/effect-of-silver-nanoparticles-on-the-standard-soil-arthropod-folsomia-candida-collembola-and-the-eukaryote-model-organism-saccharomyces-cerevisiae
#1
Panwad Sillapawattana, Martin C H Gruhlke, Andreas Schäffer
BACKGROUND: Because of their antimicrobial properties, silver nanoparticles (AgNPs) have been widely used and have come into contact with the environment. In the present work, an effect of AgNPs on a standard soil organism, Folsomia candida, was studied (in comparison to silver nitrate) focusing on molecular and cellular alterations as ecotoxicological endpoints. RESULTS: At the molecular level, an up-regulation of metallothionein-containing protein (MTC) mRNA in AgNP-treated groups indicated toxic heavy metal stress effects caused by the release of silver ions from AgNPs, which is similar to animal groups treated with silver nitrate...
2016: Environmental Sciences Europe
https://www.readbyqxmd.com/read/27867807/screening-for-potential-endocrine-disruptors-in-fish-evidence-from-structural-alerts-and-in-vitro-and-in-vivo-toxicological-assays
#2
Monika Nendza, Andrea Wenzel, Martin Müller, Geertje Lewin, Nelly Simetska, Frauke Stock, Jürgen Arning
BACKGROUND: The European chemicals' legislation REACH aims to protect man and the environment from substances of very high concern (SVHC). Chemicals like endocrine disruptors (EDs) may be subject to authorization. Identification of (potential) EDs with regard to the environment is limited because specific experimental assessments are not standard requirements under REACH. Evidence is based on a combination of in vitro and in vivo experiments (if available), expert judgement, and structural analogy with known EDs...
2016: Environmental Sciences Europe
https://www.readbyqxmd.com/read/27867806/bile-metabolites-of-polycyclic-aromatic-hydrocarbons-pahs-in-three-species-of-fish-from-morocco
#3
Ayoub Baali, Ulrike Kammann, Reinhold Hanel, Ikram El Qoraychy, Ahmed Yahyaoui
BACKGROUND: Polycyclic aromatic hydrocarbons (PAH) are environmental contaminants that pose significant risk to health of fish. Environmental pollution of fish is a topic of rising attention in Morocco. However, only few studies have been carried out so far, describing the potential threat of organic pollution to Moroccan aquatic ecosystem. Two polycyclic aromatic hydrocarbon (PAH) metabolites, 1-hydroxypyrene (1-OH-Pyr) and 1-hydroxyphenanthrene (1-OH-Phen), were identified and quantified from the bile of 18 European eels (Anguilla anguilla), 7 Moray (Muraenidae), and 28 Conger eels (Conger conger) collected from Moulay Bousselham lagoon and Boujdour coast...
2016: Environmental Sciences Europe
https://www.readbyqxmd.com/read/27840787/since-2015-the-sinogerman-research-project-sign-supports-water-quality-improvement-in-the-taihu-region-china
#4
Kathrin Rachel Schmidt, Tim Aus der Beek, Xiaohu Dai, Bingzhi Dong, Elke Dopp, Florian Eichinger, Monika Hammers-Wirtz, Regina Haußmann, Andreas Holbach, Henner Hollert, Marc Illgen, Xia Jiang, Jan Koehler, Stephan Koester, Andreas Korth, Stephan Kueppers, Aili Li, Matthias Lohmann, Christian Moldaenke, Stefan Norra, Boqiang Qin, Yanwen Qin, Moritz Reese, Edmund Riehle, Beatrix Santiago-Schuebel, Charlotte Schaefer, Anne Simon, Yonghui Song, Christian Staaks, Joerg Steinhardt, Guenter Subklew, Tao Tao, Tingfeng Wu, Daqiang Yin, Fangfang Zhao, Binghui Zheng, Meiyue Zhou, Hua Zou, Jiane Zuo, Andreas Tiehm
The Taihu (Tai lake) region is one of the most economically prospering areas of China. Due to its location within this district of high anthropogenic activities, Taihu represents a drastic example of water pollution with nutrients (nitrogen, phosphate), organic contaminants and heavy metals. High nutrient levels combined with very shallow water create large eutrophication problems, threatening the drinking water supply of the surrounding cities. Within the international research project SIGN (SinoGerman Water Supply Network, www...
2016: Environmental Sciences Europe
https://www.readbyqxmd.com/read/27761355/occurrence-and-transformation-of-veterinary-pharmaceuticals-and-biocides-in-manure-a-literature-review
#5
Manuel Wohde, Silvia Berkner, Thomas Junker, Sabine Konradi, Lisa Schwarz, Rolf-Alexander Düring
The spread of veterinary medicinal products (VMPs) and biocides via manure onto agriculturally used areas represents a very important emission into the environment for these product groups. Within this literature study, publicly available transformation studies with liquid manure are summarized. Transformation studies were evaluated regarding the transformation fate of tested substances, the origin and characteristics of used manure, the experimental setup, and the measured parameters. As main topics within the 42 evaluated transformation studies, the high dependency of transformation on temperature, redox potential, dry matter content, and other parameters is reported...
2016: Environmental Sciences Europe
https://www.readbyqxmd.com/read/27752455/results-of-extended-plant-tests-using-more-realistic-exposure-scenarios-for-improving-environmental-risk-assessment-of-veterinary-pharmaceuticals
#6
Elisabeth Richter, Silvia Berkner, Ina Ebert, Bernhard Förster, Nadin Graf, Monika Herrchen, Ute Kühnen, Jörg Römbke, Markus Simon
BACKGROUND: Residues of veterinary medicinal products (VMPs) enter the environment via application of manure onto agricultural areas where in particular antibiotics can cause phytotoxicity. Terrestrial plant tests according to OECD guideline 208 are part of the environmental risk assessment of VMPs. However, this standard approach might not be appropriate for VMPs which form non-extractable residues or transformation products in manure and manure-amended soil. Therefore, a new test design with a more realistic exposure scenario via manure application is needed...
2016: Environmental Sciences Europe
https://www.readbyqxmd.com/read/27752454/svhc-in-imported-articles-reach-authorisation-requirement-justified-under-wto-rules
#7
Julian Schenten, Martin Führ
The purpose of the REACH Regulation is to ensure a high level of protection of human health and the environment as well as the free circulation of substances on the internal market while enhancing competitiveness and innovation. To this end, REACH introduces, among other instruments, the authorisation regime for substances of very high concern (SVHC) that are listed on Annex XIV of the regulation. After expiration of the transitional period for each Annex XIV-SVHC, articles, such as most products of daily use, produced in the European Economic Area (EEA) may not contain such substances unless an authorisation was granted for the specific use or this use falls within the scope of an exemption from the authorisation requirement...
2016: Environmental Sciences Europe
https://www.readbyqxmd.com/read/27752453/the-2015-annual-meeting-of-setac-german-language-branch-in-zurich-7-10-september-2015-ecotoxicology-and-environmental-chemistry-from-research-to-application
#8
Inge Werner, Annette Aldrich, Benjamin Becker, Dennis Becker, Markus Brinkmann, Michael Burkhardt, Norbert Caspers, Sophie Campiche, Nathalie Chèvre, Rolf-Alexander Düring, Beate I Escher, Fabian Fischer, Sabrina Giebner, Katharina Heye, Henner Hollert, Marion Junghans, Cornelia Kienle, Katja Knauer, Muris Korkaric, Veronika Märkl, Jane Muncke, Jörg Oehlmann, Georg Reifferscheid, Daniel Rensch, Andreas Schäffer, Sabrina Schiwy, Simon Schwarz, Helmut Segner, Eszter Simon, Rita Triebskorn, Etiënne L M Vermeirssen, Thomas Wintgens, Markus Zennegg
This report provides a brief review of the 20th annual meeting of the German Language Branch of the Society of Environmental Toxicology and Chemistry (SETAC GLB) held from September 7th to 10th 2015 at ETH (Swiss Technical University) in Zurich, Switzerland. The event was chaired by Inge Werner, Director of the Swiss Centre for Applied Ecotoxicology (Ecotox Centre) Eawag-EPFL, and organized by a team from Ecotox Centre, Eawag, Federal Office of the Environment, Federal Office of Agriculture, and Mesocosm GmbH (Germany)...
2016: Environmental Sciences Europe
https://www.readbyqxmd.com/read/27752452/the-german-postgraduate-degree-program-in-ecotoxicology-setac-glb-and-gdch-a-success-story
#9
Klaus Peter Ebke, Jan Ahlers, Thomas Braunbeck, Jörg Oehlmann, Toni Ratte, Ralf B Schäfer, Adolf Eisenträger, Andreas Schäffer
This article gives a comprehensive overview on the strategy, the development and the progress of the German postgraduate degree program in ecotoxicology (SETAC GLB and GDCh). The program soon prompted positive results: more than 10 years now the courses had an average enrolment rate of 90 %, and employment-seeking graduates from the first courses mostly succeeded in quickly finding employment relevant to their training. With over 450 students enrolled to date, the degree program contributes significantly to the field of Environmental Chemistry and Ecotoxicology...
2016: Environmental Sciences Europe
https://www.readbyqxmd.com/read/27752451/validation-data-for-the-determination-of-perchlorate-in-water-using-ion-chromatography-with-suppressed-conductivity-detection
#10
Maike A Seiler, Detlef Jensen, Udo Neist, Ursula K Deister, Franz Schmitz
BACKGROUND: Perchlorate salts are relatively stable, soluble in water, and migrate into groundwater sources. Groundwater is an essential source for drinking water suppliers. Perchlorate bears health risks as it is identified to impair normal thyroid function by interfering with iodine uptake by the thyroid gland. The development of a sensitive analytical method for the determination of perchlorate is therefore of the highest interest or public health. Ion chromatography is a sensitive method suitable for perchlorate determinations...
2016: Environmental Sciences Europe
https://www.readbyqxmd.com/read/27752450/amphibians-and-plant-protection-products-what-research-and-action-is-needed
#11
Annette Aldrich, Marion Junghans, Caroline Aeberli, Carsten A Brühl, Franz Streissl, Benedikt R Schmidt
BACKGROUND: The majority of Swiss amphibians are threatened. There is a range of factors which have been discussed as possible causes for their decline, including plant protection products (PPPs). RESULTS: The influence of PPPs on amphibian populations has not yet been studied to any great extent, neither for active ingredients nor for the wetting agents, breakdown products or tank mixtures. A further topic of discussion was how to better protect amphibians by reducing their exposure to PPPs in agricultural fields...
2016: Environmental Sciences Europe
https://www.readbyqxmd.com/read/27752449/evaluation-of-acute-to-chronic-ratios-of-fish-and-daphnia-to-predict-acceptable-no-effect-levels
#12
Martin May, Wiebke Drost, Sabine Germer, Tanja Juffernholz, Stefan Hahn
BACKGROUND: Acute-to-chronic extrapolation is an important approach to predict acceptable no-effect levels from acute data which has some uncertainties, but is valuable for risk assessment of chemical substances. With regard to the still limited and heterogenic data of chronic fish tests, conclusions on aquatic hazard estimation need to be checked and the question arises whether the chronic toxicity to fish can be adequately derived from acute data. A comprehensive dataset including ecotoxicological studies of 203 substances was used to investigate acute-to-chronic ratios (ACR) for both fish and Daphnia...
2016: Environmental Sciences Europe
https://www.readbyqxmd.com/read/27752448/accumulation-and-variability-of-maize-pollen-deposition-on-leaves-of-european-lepidoptera-host-plants-and-relation-to-release-rates-and-deposition-determined-by-standardised-technical-sampling
#13
Frieder Hofmann, Maren Kruse-Plass, Ulrike Kuhn, Mathias Otto, Ulrich Schlechtriemen, Boris Schröder, Rudolf Vögel, Werner Wosniok
BACKGROUND: Risk assessment for GMOs such as Bt maize requires detailed data concerning pollen deposition onto non-target host-plant leaves. A field study of pollen on lepidopteran host-plant leaves was therefore undertaken in 2009-2012 in Germany. During the maize flowering period, we used in situ microscopy at a spatial resolution adequate to monitor the feeding behaviour of butterfly larvae. The plant-specific pollen deposition data were supplemented with standardised measurements of pollen release rates and deposition obtained by volumetric pollen monitors and passive samplers...
2016: Environmental Sciences Europe
https://www.readbyqxmd.com/read/27752447/pesticides-in-surface-waters-a-comparison-with-regulatory-acceptable-concentrations-racs-determined-in-the-authorization-process-and-consideration-for-regulation
#14
Katja Knauer
BACKGROUND: Chemical analysis of surface water conducted in European countries indicates that pesticides are often detected in surface waters. This asks regulatory authorities to consider these monitoring data while re-evaluating pesticide approval and setting appropriate risk mitigation measures. During the years 2005-2012, the cantons in Switzerland performed 345,000 pesticide measurements in surface waters. Overall, 203 approved pesticides were examined. For 60 of these substances, regulatory acceptable concentrations (RACs) were published, which were determined from ecotoxicological data in accordance with international test methods within the framework of the authorization procedure...
2016: Environmental Sciences Europe
https://www.readbyqxmd.com/read/27752446/significance-of-cadmium-from-artists-paints-to-agricultural-soil-and-the-food-chain
#15
Nicole Bandow, Franz-Georg Simon
BACKGROUND: An Annex XV restriction dossier for cadmium in artists' paints was submitted by an EU member state to the European Chemicals Agency ECHA. By cleaning, used brushes under the tap cadmium can enter the food chain via waste water treatment and subsequent agricultural application of the sewage sludge. It was estimated that 110 kg Cd per year is spread on agricultural land via this exposure route. Other sources of Cd amount to almost 120 tons per year. RESULTS: The mobility of Cd from pigments was studied in a field-like scenario by leaching experiments using soil samples amended with sewage sludge and spiked with Cd pigments in percolation columns...
2016: Environmental Sciences Europe
https://www.readbyqxmd.com/read/27752445/adaption-of-a-dermal-in-vitro-method-to-investigate-the-uptake-of-chemicals-across-amphibian-skin
#16
Katharina Kaufmann, Peter Dohmen
BACKGROUND: Literature data indicate that terrestrial life stages of amphibians may be more sensitive to xenobiotics than birds or mammals. It is hypothesized that dermal exposure could potentially be a significant route of exposure for amphibians, as there is evidence that their skin is more permeable than the skin of other vertebrate species. Thus, higher amounts of xenobiotics might enter systemic circulation by dermal uptake resulting in adverse effects. Heretofore, no guidelines exist to investigate dermal toxicity of chemicals to amphibians...
2016: Environmental Sciences Europe
https://www.readbyqxmd.com/read/27752444/dioxin-in-the-elbe-river-basin-policy-and-science-under-the-water-framework-directive-2000-2015-and-toward-2021
#17
Ulrich Förstner, Henner Hollert, Markus Brinkmann, Kathrin Eichbaum, Roland Weber, Wim Salomons
A critical review of the last 25 years of dioxin policy in the Elbe river catchment is presented along seven main theses of the River Basin Community (RBC)-Elbe background document "Pollutants" for the Management Plan 2016-2021. In this period, polychlorinated dibenzodioxins/-furans (PCDD/Fs) and dioxin-like polychlorinated biphenyls (dl-PCBs) will play a major role: (i) as new priority substances for which environmental quality standards (EQSs) need to be derived (Directive 2013/39/EC); (ii) in the search for innovative solutions in sediment remediation (i...
2016: Environmental Sciences Europe
https://www.readbyqxmd.com/read/27752443/natural-personal-care-products-analysis-of-ingredient-lists-and-legal-situation
#18
Ursula Klaschka
BACKGROUND: Many natural substances are classified as dangerous substances according to the European regulation on classification and labelling. Are they used in natural personal care products today? One hundred ingredient lists were analyzed to find this out. RESULTS: All products with natural substances contained dangerous natural substances or they contained natural substances, for which the information about their classification as dangerous substances is not available...
2016: Environmental Sciences Europe
https://www.readbyqxmd.com/read/27752442/criteria-for-reporting-and-evaluating-ecotoxicity-data-cred-comparison-and-perception-of-the-klimisch-and-cred-methods-for-evaluating-reliability-and-relevance-of-ecotoxicity-studies
#19
Robert Kase, Muris Korkaric, Inge Werner, Marlene Ågerstrand
BACKGROUND: The regulatory evaluation of ecotoxicity studies for environmental risk and/or hazard assessment of chemicals is often performed using the method established by Klimisch and colleagues in 1997. The method was, at that time, an important step toward improved evaluation of study reliability, but lately it has been criticized for lack of detail and guidance, and for not ensuring sufficient consistency among risk assessors. RESULTS: A new evaluation method was thus developed: Criteria for Reporting and Evaluating ecotoxicity Data (CRED)...
2016: Environmental Sciences Europe
https://www.readbyqxmd.com/read/27752441/biocide-leaching-during-field-experiments-on-treated-articles
#20
Ute Schoknecht, Helena Mathies, Robby Wegner
BACKGROUND: Biocidal products can be sources of active substances in surface waters caused by weathering of treated articles. Marketing and use of biocidal products can be limited according to the European Biocidal Products Regulation if unacceptable risks to the environment are expected. Leaching of active substances from treated articles was observed in field experiments to obtain information on leaching processes and investigate the suitability of a proposed test method. RESULTS: Leaching under weathering conditions proceeds discontinuously and tends to decrease with duration of exposure...
2016: Environmental Sciences Europe
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