Fant 420 publikasjoner. Viser side 9 av 18:
The increase of the commercial availability of low-cost sensor technology to monitor atmospheric composition is contributing to the rapid adoption of such technology by both public authorities and self-organized initiatives (e.g. grass root movements, citizen science, etc.). Low-cost sensors (LCS) can provide real time measurements, in principle at lower cost than traditional monitoring reference stations, allowing higher spatial coverage than the current reference methods. However, data quality from LCS is lower than the one provided by reference methods. Also, the total cost of deploying a dense sensor network needs to consider the costs associated not only to the sensor platforms but also the costs associated for instance with deployment, maintenance and data transmission.
This report aims to give an overview of the current status of LCS technology in relation to commercialization, measuring capabilities and data quality, with especial emphasis on the challenges associated to the use of this novel technology, and the opportunities they open when correctly used.
NILU
2021
Spesifikasjoner for sensorsystemer til måling av luftkvalitet. Anbefalinger ved anskaffelse.
Denne rapporten forklarer tekniske begrep knyttet til måleytelse, samt gir anbefalinger og krav i forbindelse med utarbeidelse av anbud. Rapporten går gjennom eksisterende instrumentering til luftkvalitetsmåling i Norge og gjeldende lovgivning rundt temaet. Den nevner mulige applikasjoner for ny sensorteknologi. En oversikt over metrologiske begrep sammen med forklaringer gir leseren grunnleggende kunnskap for å kunne tolke instrumentspesifikasjoner. Rapporten identifiserer noen viktige parametere knyttet til kvaliteten på sensorsystemer.
NILU
2018
Maximizing output from non-target screening
The purpose of this project is to dig deeper into the data material already generated in the Suspect screening in Nordic countries: Point sources in city areas (TemaNord: 2017:561) to further optimize the benefits of the major work that has already been done. Samples (effluent, sediment, and biota) from all of the Nordic countries were carefully selected, sampled and analysed by a consortium of some of the Nordic region’s most experienced scientific groups in analyses of emerging environmental contaminants. But where perhaps the full potential of the generated data is still to be realized. This project will try to further identify and describe the substances already detected, to be able to better understand what substances we in modern Nordic societies release into the sea via our wastewater.
Nordic Council of Ministers
2021
Kartlegging av NO2-konsentrasjoner i luft ved E16 Arna – Vågsbotn ble utført av NILU på oppdrag fra Statens vegvesen.
Målingene ble utført med passive prøvetakere ved 10 steder i området Gaupås-Kalsås-Blinde. Prosjektet ble gjennomført
vinteren 2020 (28. januar – 24. mars) i et område som er utsatt for inversjonsforhold i vintermånedene.
Vinteren 2019-2020 viste seg til å bli en mild vinter, inversjonsforhold ble ikke registrert. NO2-konsentrasjonen var høyest den første uken målingene pågikk og ble gradvis lavere i påfølgende uker. De siste 2 ukene var påvirket av mindre trafikk som en følge av pandemitiltak. Middelkonsentrasjonen ved det mest forurensede målestedet over hele måleperioden var 22,9 μg/m3. Sammenligning av resultatene fra måleområdet med observasjoner fra målestasjoner i Bergen viste at NO2-konsentrasjonen rett ved E16 var på samme nivå som ved veinære stasjoner i Bergen.
NILU
2020
The report holds a comprehensive literature review on the non-exhaust PM emission from transport. All types of wear particles are considered (brake, tyre, road surface) and all modes (road, rail, aviation), with strong emphasis on road. The report serves as an input to review current emission inventories, summarizing the current emission estimates, the estimation methodologies, uncertainties and future trends, briefly zooming in on the relevance of electric vehicles. The report considers both air quality as well as the relevance of non-exhaust emission as a source of microplastics. To conclude, the report includes a brief overview of technological and policy options to reduce the environmental impact.
ETC/ATNI
2021
The report provides the annual update of the European air quality concentration maps and population and vegetation exposure estimates for human health related indicators of pollutants PM10 (annual average, 90.4 percentile of daily means), PM2.5 (annual average), ozone (93.2 percentile of maximum daily 8-hour means, peak season average of maximum daily 8-hour means, SOMO35, SOMO10), NO2 (annual average) and benzo(a)pyrene (annual average), and vegetation related ozone indicators (AOT40 for vegetation and for forests) for the year 2022. The report contains also maps of Phytotoxic ozone dose (PODY) for selected crops (wheat, potato and tomato) and trees (spruce and beech) and NOx annual average map for the same year 2022. The ozone map of peak season average of maximum daily 8-hour means is presented for the first time. The trends in exposure estimates in the period 2005–2022 are summarized. The analysis for 2022 is based on the interpolation of the annual statistics of the 2022 observational data reported by the EEA member and cooperating countries and other voluntary reporting countries and stored in the Air Quality e-reporting database, complemented, when needed, with measurements from additional sources. The mapping method is the Regression – Interpolation – Merging Mapping (RIMM). It combines monitoring data, chemical transport model results and other supplementary data using linear regression model followed by kriging of its residuals (residual kriging). The paper presents the mapping results and gives an uncertainty analysis of the interpolated maps. It also presents concentration change in 2022 in comparison to the five-year average 2017-2021 using the difference maps and exposure estimates.
ETC/HE
2024
Skogens helsetilstand i Norge. Resultater fra skogskadeovervåkingen i 2022
Skogens helsetilstand påvirkes i stor grad av klima og værforhold, enten direkte ved tørke, frost og vind, eller indirekte ved at klimaet påvirker omfanget av soppsykdommer og insektangrep. Klimaendringene og den forventede økningen i klimarelaterte skogskader gir store utfordringer for forvaltningen av framtidas skogressurser. Det samme gjør invaderende skadegjørere, både allerede etablerte arter og nye som kan komme til Norge i nær framtid. I denne rapporten presenteres resultater fra skogskadeovervåkingen i Norge i 2022 og trender over tid for følgende temaer:
(i) Landsrepresentativ skogovervåking;
(ii) Intensiv skogovervåking;
(iii) Overvåking av bjørkemålere i Troms og Finnmark;
(iv) Barkbilleovervåkingen;
(v) Furuvednematode;
(vi) Askeskuddsyke;
(vii) Andre spesielle skogskader i 2022.
NIBIO
2023
Deposition of sulfur and nitrogen in Norway 2017-2021
Norwegian Meteorological Institute
2023
Field evaluation of three Vaisala sensor system units (AQT530). Gaseous compounds - O3, NO2, NO.
NILU
2023
2023
Grenseområdene Norge-Russland. Luft- og nedbørkvalitet, årsrapport 2019.
Smelteverkene i nordvest-Russland slipper ut store mengder svoveldioksid (SO2) og tungmetaller. Utslippene påvirker luft- og nedbørkvalitet i grenseområdene. Miljøovervåkingen viser at grenseverdier for SO2 er overholdt i kalenderåret 2019, samt for vinter 2018/19. I januar 2019 var det to episoder med høye konsentrasjoner av SO2 på Svanvik. 25. januar ble det sendt varsel til befolkningen i området. Målsettingsverdier for Ni og As er overholdt.
NILU
2020
Satellite remote sensing of Arctic fires - a literature and data review
The main aim of this report is to prepare for the proposed SGA #17 of the Caroline Herschel Framework Partnership Agreement on Copernicus User Uptake Work Programme 2020 named “Arctic peat- and forest-fire information system”. First, we summarize the scientific background of wildfires in the Arctic and the Northern boreal zone and describe observations of long-range transport of forest fire pollution. This is followed by an overview of satellite data and resources available for fire monitoring in these regions. This covers the fire ECVs, as well as smoke plume tracers. Furthermore, we list CAMS and CEMS resources, i.e., GWIS, EFFIS (including the latest country report for Norway), and GFAS, as well as other fire emission inventories. Knowledge gaps and limitations of satellite remote sen.sing, future missions, Norwegian user uptake and user groups are described.
NILU
2023
Spredningsberegning og bestemmelse av skorsteinshøyde
Tillatelser etter forurensningsloven og forurensningsforskriften kapittel 27 om forbrenning av rene
brensler stiller krav om bruk av spredningsberegninger for bestemmelse av bakkekonsentrasjoner og
skorsteinshøyder.
Denne veilederen gir informasjon om regelverk om luftforurensning og forklarer hvordan
spredningsberegninger skal utføres for å bestemme nødvendig skorsteinshøyde.
Veilederen er tiltenkt brukere av spredningsmodeller i konsulentbransjen, myndigheter, anleggseiere
og interessegrupper.
Miljødirektoratet
2018
The paper provides the annual update of the European air quality concentration maps and population exposure estimates for human health related indicators of pollutants PM10 (annual average, 90.4 percentile of daily means), PM2.5 (annual average), ozone (93.2 percentile of maximum daily 8-hour means, SOMO35, SOMO10) and NO2 (annual average), and vegetation related ozone indicators (AOT40 for vegetation and for forests) for the year 2017. The report contains also NOx annual average concentration map for 2017. The trends in exposure estimates in the period 2005-2017 for PM10 and ozone, resp. in the period 2007-2017 for PM2.5 are summarized. The analysis is based on interpolation of annual statistics of the 2017 observational data reported by EEA Member countries in 2016 and stored in the Air Quality e-reporting database. The mapping method is the Regression – Interpolation – Merging Mapping. It combines monitoring data, chemical transport model results and other supplementary data using linear regression model followed by kriging of its residuals (residual kriging). The paper presents the mapping results and gives an uncertainty analysis of the interpolated maps.
ETC/ATNI
2020
Monitoring of the atmospheric ozone layer and natural ultraviolet radiation. Annual Report 2019.
This report summarizes the results from the Norwegian monitoring programme on stratospheric ozone and UV radiation
measurements. The ozone layer has been measured at three locations since 1979: In Oslo/Kjeller, Tromsø/Andøya and
Ny-Ålesund. The UV measurements started in 1995. The results show that there was a significant decrease in stratospheric
ozone above Norway between 1979 and 1997. After that, the ozone layer stabilized at a level ~2% below pre-1980 level.
2019 was characterized by low ozone values in April and an “ozone hole” in Southern Norway in December 2019.
NILU
2020
Monitoring of microplastics in the Norwegian environment (MIKRONOR)
In 2021 The Norwegian Environment Agency (Miljødirektoratet) assigned the first analyses of microplastics within a national monitoring program “Microplastics in Norwegian coastal areas, rivers, lakes and air (MIKRONOR)” to NIVA. The aim of the program was to build knowledge about the background levels of microplastics in Norwegian environment, as well as identify potential sources and sinks. This is the second annual report, which presents the results from samples of 1) marine and lake/river sediments, biota and water, 2) air and deposition at two sites, including one at Svalbard, and 3) potential sources: urban runoff and effluent of wastewater treatment plants (WWTP) in two cities (Oslo and Hamar). The samples were analysed for microplastics, including tyre wear particles (TWP) from cars. The concentrations of plastic particles (mass of polymers per volume/weight unit) were calculated, using a novel formula for estimating volume of particles from the numerical analysis by spectroscopic (FTIR) analysis. The air samples were analysed for mass concentrations by mass spectrometric analysis. The main findings were the large number and concentrations of particles found in the inner Oslofjord. This included large numbers of microplastic particles resulting in high mass concentrations (μg/g dw) of plastic polymers. Particularly high mass concentrations of TWP were found in the sediments of the inner Oslofjord. TWP were also found at considerably high concentrations in blue mussels from the same area (Akershuskaia). Additionally, the urban runoff samples from both Oslo and Hamar showed high concentrations of TWP. High concentrations of TWP were also found in freshwater sediments near Hamar.
Norsk institutt for vannforskning (NIVA)
2023
2019
2018
2018