Found 2229 publications. Showing page 62 of 223:
Monitoring of the atmospheric ozone layer and natural ultraviolet radiation. Annual report 2014. NILU OR
This is an annual report describing the activities and main results of the monitoring programme
"Monitoring of the atmospheric ozone layer and natural ultraviolet radiation" for 2014. The ozone
layer was below the long-term mean in spring 2014, but increased in April/May and was close to
normal rest of the year. A clear decrease in total ozone above Norway during the period 1979-
1997 stopped after 1998 and the ozone layer above Norway now seems to have stabilized.
2015
National air quality tool. Towns and industry. Description of method. NILU OR
This report gives a description of a method for simplified modelling of air pollution in towns and industrial sites. The products to be developed in this work package is presented.
2015
Analysis of per- and polyfluorinated substances in articles. Nordiske Arbejdspapirer, 2015:911
2015
NILU's Strategic Institute Initiatives (SIS) 2014. NILU OR
Each of NILU's Strategic Institute Initiatives(SIS) is required to deliver a popular science report annually to the Research Council. This report contains all of NILU¿s annual SIS-reports for 2014.
2015
NILU's Environmental Management Report 2014. NILU OR
One of NILU's main goals is to study the impact of pollution and supply decision-makers with a sound scientific platform for choosing measures to reduce the negative impacts. It is also very important for the institute to have control of the impact the institute¿s own activities may have on the environment and to reduce negative impacts as far as possible.
NILU has for many years been working to improve the status of the environment and to reduce negative impacts. 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. This report summarizes the results of the system.
2015
NILU has on behalf of the Norwegian Environment Agency determined the concentration of ionic perfluorinated substances (PFASs), including PFOA, in outdoor gear.
Of the investigated 18 items, no PFAS could be detected at all in nine of them. Two samples contained PFOA exceeding the limit of 1 µg/m2. The quality assurance where three replicates of one sample were extracted had a relative standard deviation (RSD) less than 10% for all detected substances except one (PFTrDA). Other quality measures such as recovery calculations and blanks shows that the method used for extraction is suitable for these types of matrices and substances. PFOS was not present in the items investigated, indicating that the textile industry manages to effectively avoid PFOS in their production processes.
2015
2015
Intercomparison of BTEX measurements and revision of historical BTEX data in Oslo. NILU OR
Parallel measurements of BTEX with diffusive sampling in Oslo confirmed large deviations between the two involved laboratories NILU and Molab. The following investigation identified that Molab was using wrong uptake rates in their final calculation of the results. All BTEX results delivered by Molab between 2008 and 2014 have to be revised downwards with factors between 2,4 and 2,9.
2015
Russian-Norwegian ambient air monitoring in the border areas. Report M-322
The report presents the levels of sulphur dioxide (SO2) and heavy metals (nickel and copper) in ambient air at the Russian monitoring stations in Nikel and Zapoljarny and the Norwegian stations in Karpdalen and Svanvik. MUGMS and NILU use internationally well recognized the state-of-the-art methods for analyzing both SO2 and heavy metals. SO2 emissions and ambient air levels have decreased over the last two decades, but elevated levels of SO2 were observed in Nikel and Zapoljarny in the period 2009-2012, exceeding the Russian norms.
The border areas in Norway experienced levels of SO2 exceeding the Norwegian air quality standards over the years 2011-2012. The levels of heavy metals did not exceed neither the Russian norms for heavy metals, nor the Norwegian annual mean target values for heavy metal. The levels of both SO2 and heavy metals were higher at the Russian stations than the Norwegian stations. The Russian monitoring stations are located closer to the emission sources in Nikel and Zapoljarny.
2015