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2010
Statusrapport 2024. Nasjonalt referanselaboratorium for luftkvalitetsmålinger
Denne rapporten oppsummerer oppgavene til Nasjonalt referanselaboratorium for luftkvalitetsmålinger (NRL), delkontrakt 1b, for første halvår 2024.
NILU
2024
2008
Statoil har engasjert Norsk institutt for luftforskning (NILU) til å gjennomføre program for "Miljøovervåking av utslipp til luft fra Snøhvit-Hammerfest LNG". Prosjektet hadde oppstart 1. februar 2006. Dette er femtende statusrapport i prosjektet som tar for seg perioden 1. april 2011 - 1. juli 2011.
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2007
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2008
Statoil har engasjert Norsk institutt for luftforskning (NILU) til å gjennomføre program for "Miljøovervåking av utslipp til luft fra Snøhvit-Hammerfest LNG". Prosjektet hadde oppstart 1. februar 2006. Dette er fjortende statusrapport i prosjektet som tar for seg perioden 1. januar 2011 - 1. april 2011.
2011
2008
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2010
2011
2009
Background
Chlorinated paraffins (CPs) are industrial chemicals categorised as persistent organic pollutants because of their toxicity, persistency and tendency to long-range transport, bioaccumulation and biomagnification. Despite having been the subject of environmental attention for decades, analytical methods for CPs still struggle reaching a sufficient degree of accuracy. Among the issues negatively impacting the quantification of CPs, the unavailability of well-characterised standards, both as pure substances and as matrix (certified) reference materials (CRMs), has played a major role. The focus of this study was to provide a matrix CRM as quality control tool to improve the comparability of CPs measurement results.
Results
We present the process of certification of ERM®-CE100, the first fish reference material assigned with certified values for the mass fraction of short-chain and medium-chain chlorinated paraffins (SCCPs and MCCPs, respectively). The certification was performed in accordance with ISO 17034:2016 and ISO Guide 35:2017, with the value assignment step carried out via an intercomparison of laboratories of demonstrated competence in CPs analysis and applying procedures based on different analytical principles. After confirmation of the homogeneity and stability of the CRM, two certified values were assigned for SCCPs, depending on the calibrants used: 31 ± 9 μg kg−1 and 23 ± 7 μg kg−1. The MCCPs certified value was established as 44 ± 17 μg kg−1. All assigned values are relative to wet weight in the CRM that was produced as a fish paste to enhance similarity to routine biota samples.
Significance and novelty
The fish tissue ERM-CE100 is the first matrix CRM commercially available for the analysis of CPs, enabling analytical laboratories to improve the accuracy and the metrological traceability of their measurements. The certified CPs values are based on results obtained by both gas and liquid chromatography coupled with various mass spectrometric techniques, offering thus a broad validity to laboratories employing different analytical methods and equipment.
Elsevier
2024
2010
2022
2022
Storage and reporting of odd samples. NILU OR
Rapporten gir anbefalinger om hvordan målekampanjer skal rapporteres og lagres og gir anbefalinger på hvordan systemet skal være for at den innsamlede informasjonen skal være tilgjengelig i ettertid. Det anbefales å opprette en relasjonsdatabase som fungerer som et bibliotek der sentral informasjon gjøres søkbar og det opprettes søkeord som klassifiserer dataene og rapportene.
2010
Royal Society of Chemistry (RSC)
2020