Fant 9998 publikasjoner. Viser side 373 av 400:
2010
2005
2007
2023
Altitude-temporal behaviour of atmospheric ozone, temperature and wind velocity observed at Svalbard
2018
2019
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.
2011
Alternative approaches to standard toxicity testing, TQP ID 9 - 257430120 - NILU. NILU OR
Et aminbasert CO2 renseanlegg kan føre til utslipp av aminer til luft. I atmosfæren brytes aminer ned til mange ulike kjemiske forbindelser, deriblant til nitrosaminer og nitraminer. Disse kan ha miljø- og helseskadelige egenskaper. Denne rapporten gir en oversikt over eksisterende data for nitrosaminer og nitraminer og en anbefalning til integrert strategi for testing ved bruk av alternative metoder som in vitro metoder og (Q)SAR for å fylle kunnskapshullene og informasjonskravene for risikovurdering av kjemikalier i REACH.
2011
2017
2011
Pollutants emitted by industrial processes are deposited across the landscape. Ice core records from mid-latitude glaciers located close to emission sources document the history of local-to-regional pollution since preindustrial times. Such records underpin attribution of pollutants to specific emission sources critical to developing abatement policies. Previous ice core studies from the Alps document the overall magnitude and timing of pollution related to nitrogen and sulfur-derived species, as well as a few metals including lead. Here, we used subannually resolved measurements of vanadium (V) and molybdenum (Mo) in two ice cores from Col du Dome (French Alps), as well as atmospheric transport and deposition modeling, to investigate sources of pollution in the free European troposphere. The noncrustal V and Mo (ncV, ncMo) components were calculated by subtracting the crustal component from the total concentration. These ice core results showed a 32-fold increase in ncV and a 69-fold increase in ncMo from the preindustrial era (pre-1860) to the industrial concentration peaks. Anthropogenic V and Mo emissions in Europe were estimated using emission factors from oil and coal consumption and atmospheric transport and deposition modeling. When comparing ice core data to estimated anthropogenic V and Mo emissions in Europe, V was found to be sourced primarily from oil combustion emissions. Conversely, coal and oil combustion estimated emissions did not agree with the measured ice core Mo concentrations, suggesting that other anthropogenic Mo sources dominated coal-burning emissions, particularly after the 1950s. Noncoal-burning sources of Mo may include metallurgy although emission factors are poorly known.
2021
2005
Alpha-HCH enantiomers trace sea-to-air exchange during ice breakup in the Canadian Archipelago. NILU F
2008
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2014
2016