Fant 404 publikasjoner. Viser side 13 av 17:
Monitoring of the atmospheric ozone layer and natural ultraviolet radiation. Annual Report 2019.
Denne rapporten presenterer resultatene fra det norske måleprogrammet for totalozon og UV-stråling. Ozonlaget har blitt målt ved tre stasjoner siden 1979: i Oslo/Kjeller, Tromsø/Andøya og Ny-Ålesund. UV-målinger startet i 1995. Resultatene viser at det var en signifikant ozonreduksjon over Norge i perioden 1979 til 1997. Deretter stanset reduksjonen og ozonverdiene stabiliserte seg på et nivå ~2% lavere enn verdiene før 1980. Mest karakteristisk for 2019 var et tynt ozonlag i april 2019 og et «ozonhull» over Sør-Norge i desember 2019.
NILU
2020
Assessment of transboundary pollution by toxic substances: Heavy metals and POPs
Meteorological Synthesizing Centre - East (MSC-E)
2020
Survey of emissions of volatile organic chemicals from handheld toys for children above 3 years
NILU
2020
Monitoring of long-range transported air pollutants in Norway. Annual Report 2019.
Denne rapporten omhandler resultater fra overvåkningsprogrammet for langtransportert forurenset luft og nedbør og atmosfæriske tilførsler i 2019. Rapporten presenterer målinger av uorganiske hovedkomponentene i luft og nedbør, partikulært karbonholdig materiale, partikkelmasse og bakkenært ozon. I 2019 ble det observert en uvanlig omfattende episode med høye konsentrasjoner av luftforurensing på flere stasjoner.
NILU
2020
Hovedmålet for prosjektet "Mot bedre utnyttelse av satellittdata for overvåking av luftkvalitet i Norge ved hjelp av
nedskaleringsteknikker" (Sat4AQN) var å evaluere potensialet for romlig nedskalering av eksisterende satellittprodukter
med støtte fra en høyoppløselig kjemisk transportmodell (CTM) til romlige skalaer som er mer relevante for å overvåke
luftkvaliteten i urbane områder og regionale bakgrunnssteder i Norge. For dette demonstrasjonsprosjektet fokuserte vi på
satellitt-aerosol-optisk tykkelse (AOD) og svevestøv (PM) estimater.
NILU
2020
2020
2020
Health Risk Assessment of Air Pollution in Europe. Methodology description and 2017 results
This report describes the methodology applied to assess health risks across Europe in 2016, published in the European Environmental Agency’s Air Quality in Europe – 2019 report. The methodology applied is based on the work by de Leeuw and Horálek (2016), with a few adjustments. To estimate the health risk related to air pollution, the number of premature deaths and years of life lost related to exposure to fine particulate matter, ozone and nitrogen dioxide exposure were calculated for 41 countries across Europe. The results show that the largest health risks are estimated for the countries with the largest populations. However, in relative terms, when considering e.g., years of life lost per 100 000 inhabitants, the largest relative risks are observed in central and eastern European countries, and the lowest are found for the northern and north-western parts of Europe. Additionally to the assessment, a sensitivity analysis was undertaken to comprehend how much the presumed baseline concentration levels, the concentration below which no health effects are expected, affect the estimations. In addition, a benefit analysis, assuming attainment of the PM2.5 WHO guidelines across Europe, shows a reduction over 30 % of the 2017 premature deaths and years of life lost numbers.
ETC/ATNI
2020
In this report, we investigate the relative expanded uncertainty (REU) formula for comparing low-cost sensors (microsensors) and reference measurements. The purpose of the REU formula is to check if microsensor measurements follow the data quality objective (DQO) of the European Air Quality Directive 2008/50/EC to be considered equivalent to a reference instrument. The project aimed to obtain a good understanding of the REU formula for its proper use in current and future projects involving microsensors.
NILU
2020
The geographic distribution of NO2-concentrations in air in the area around E16 Arna – Vågsbotn (Bergen) was mapped by
NILU after request by Statens vegvesen. Measurements were carried out with passive air samplers at 10 sites in the area
Gaupås-Kalsås-Blinde. The project was carried out in winter (28. January – 24. March 2020) in an area which often is subject to inversion conditions in wintertime.
The winter 2019-2020 proved to be a mild winter, no inversion conditions were registered. The NO2-concentration was highest in the first week and decreased gradually every week. During the two last weeks, traffic was reduced as a consequence of pandemia measures. The average concentration at the most polluted site over the entire measurement period was 22.9 μg/m3. Comparison of results from the measurement area with observations from monitoring stations in Bergen showed that the NO2-level close to E16 was as high as at traffic stations in Bergen.
NILU
2020
Denne rapporten presenterer databasen i ICP Materialer for perioden oktober 2017 – november 2018. Den inkluderer
miljødata fra ICP Materialer trend-eksponeringsprogrammet for 2017 – 2018, og i tillegg data for temperatur, relativ
fuktighet og nedbørsmengde tilbake til slutten av forrige års-eksponering i oktober/november 2015. Databasen består av
meteorologiske data (T, RF og nedbørsmengde) og forurensningsdata, som gasskonsentrasjoner, mengde ioner i nedbør, partikkelkonsentrasjoner og mengde avsatte partikler.
NILU
2020
2020
2020
This report presents the results of the European Union Action
on Black Carbon in the Arctic (EUA-BCA) initiative’s review of
observation capacities and data availability for black carbon in the Arctic region.
EUA-BCA/AMAP
2019
Kartlegging av lokal luftkvalitet i Hønefoss. Målinger 2018-2019.
NILU - Norwegian Institute for Air Research has commissioned a survey of local air quality in Hønefoss on behalf of Ringerike municipality. The survey program started in June 2018 and was completed in May 2019. The measurements were carried out to obtain the knowledge base for a new town plan in Hønefoss.
The measurement program included measurement of particulate matter and nitrogen dioxide as well as meteorological parameters such as temperature, pressure, relative humidity and wind.
The annual mean concentration of PM2.5 was below the upper, but above the lower assessment threshold. The annual mean values ÿÿof NO2 and PM10 did not exceed the lower assessment threshold. The daily mean values ÿÿof PM10 and the hourly concentrations of NO2 were below the upper, but above the lower assessment threshold.
NILU
2019
Tiltaksutredning for lokal luftkvalitet i Tromsø
The air quality assessment covers mapping of the air quality in Tromsø through traffic, emission and dispersion calculations of PM10, PM2,5 and NO2 for the present situation (2016) and future scenarios (2023) with and without measures on particulate matter. Based on the calculations and in coordination with Tromsø municipality and the workgroup, a plan for improved local air quality and a management plan for periods with high concentration levels is proposed for political processing.
NILU
2019
The aim of the study is to assess the effect of the subsidy to replace old wood stoves for new clean burning stoves, and to what extent the scheme has influenced the total particle emissions and pollution concentrations in Oslo municipality. NILU selected three methods; 1) emission and dispersion modelling for 4 different scenarios; 2) estimate the emission reduction associated with the subsidy scheme in Oslo municipality; and 3) a comparison of changes in emissions, wood consumption and emission factors over time in municipalities with and without subsidy. Modeling and assessment of the potential emission reduction associated with the subsidy scheme shows that it has a potentially significant effect on the reduction of particulate emissions and concentrations of PM2.5 and PM10. The estimates show that the subsidy scheme in Oslo municipality gives a significant reduction in average emission factor over time. However, the effect on total PM-emissions is small.
NILU
2019