Fant 9759 publikasjoner. Viser side 158 av 391:
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Environmental Management Report 2010. NILU OR
One of NILU's main goals is to study the impact of pollution. It is thus very important for the institute to have control of the impact the institute's own activities may have on the environment and to reduce the impact as far as possible.
NILU has for many years been working to reduce the impact. In order to take this one step further, it was decided that the institute should restructure the work according to a relevant environmental standard and to seek certification according to the same standard.
The chosen standard is ISO 14001:2004 (Environmental management systems - Requirements with guidance for use) and NILU achieved certification according to this standard in October 2010.
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Alternative approaches to standard toxicity testing. TQP ID 9-OPTION-257430181-NILU. NILU OR
An amine based CO2 capture plant may cause harmful emissions to the atmosphere. Amines and degradation products from reactions in the process and in the atmosphere are of particular concern, but there is limited knowledge about the behaviour and potential effects of these chemical compounds. The substances produced can pose a risk to the environment and human health. This report is an option for the TQP ID 9 - 257430120 - NILU report (or 14/2011) and includes a review on nitrosated and nitrated amino acids with detail physicochemical data and (eco)toxicological endpoints for these substances. Furthermore evaluation of toxicological concepts and parameters related to risk assessment of these compounds, such as mutagenic potency, DNEL/DMEL and TD50/T25, has been provided. An evaluation of the use of a new developed QSAR model to predict TD50 of an extended list of nitrosamines was performed. In addition a current knowledge status on the use of (Q)SAR within REACH have been carried out.
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Emission inventories and projections for assessing hemispheric or intercontinental transport of persistent organic pollutants. Air pollution studies, 19
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NILU har fått i oppdrag å utvikle nasjonale satellittbaserte operasjonelle tjenester som kan støtte luftfartsnæringen i fremtiden. Dette dokumentet presenterer a) det nasjonale seminaret som ble avholdt 6. desember 2010, og b) en strategi for hvilke observasjoner som vil direkte kunne nyttiggjøres i fremtidige operasjonelle tjenester.
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Modeling of short chain chlorinated paraffins in the Nordic environment. NILU PP
Short chain chlorinated paraffins (SCCPs), also called polychlorinated n-alkanes, are mixtures of compounds of molecular formula CxH2x+2-yCly containing 10-13 carbon atoms and usually 30-70 % degree of chlorination. They have a range of industrial applications, and have been detected in numerous environmental compartments. There is concern regarding SCCPs due to their environmental persistence and their potential for bioaccumulation, adverse effects and long-range transport. SCCPs have been included in the UNECE LRTAP Convention, the priority substance list of the European Water Framework Directive, and are under consideration for the Stockholm Convention on Persistent Organic Pollutants. However, the behaviour and fate of SCCPs remain poorly understood, in part as the technical mixtures consist of thousands of isomers, enantiomers and diastereomers, which make analysis and modelling of these compounds very challenging. The purpose of this study was to explore a complementary modelling and monitoring approach to evaluate the overall understanding of the link between emissions of SCCPs, environmental levels and human exposure in the Nordic environment and to identify the more critical knowledge gaps. Data for emissions and physicochemical properties of SCCPs were gathered or estimated, and used to parameterize an integrated, non-steady state environmental fate and bioaccumulation model (CoZMoMan). Specific congeners of SCCPs were selected for the study to assess the extent of expected variation of environmental fate and behaviour within the multitude of compounds. Model results were next compared to reported environmental levels in the Nordic region. For compartments where environmental levels were scarce or lacking, targeted sampling and analysis was carried out to further evaluate the model predictions. Results from this study will be presented and discussed with emphasis on the more critical research needs with respect to the overall fate and exposure of SCCPs.
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