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Found 335 publications. Showing page 14 of 14:

Publication  
Year  
Category

Ozone measurements 2016

Hjellbrekke, Anne-Gunn; Solberg, Sverre

NILU

2018

VOC measurements 2016

Solberg, Sverre; Claude, Anja; Reimann, Stefan

This report presents VOC measurements carried out during 2016 at EMEP monitoring sites. In total, 19 sites reported VOC data from EMEP VOC sites this year. Some of the data sets are considered preliminary and are not included in the report.

The monitoring of NMHC (non-methane hydrocarbons) has become more diverse with time in terms of instrumentation. Starting in the early 1990s with standardized methods based on manual sampling in steel canisters with subsequent analyses at the lab, the methods now consist of a variety of instruments and measurement principles, including automated continuous monitors and manual flask samples. For oxygenated VOCs (OVOCs), sampling in DNPH-tubes with subsequent lab-analyses is still the only method in use at EMEP sites.

Within the EU infrastructure project ACTRIS-2, data quality issues related to measurements of VOC have been an important topic. Many of the institutions providing VOC data to EMEP have participated in the ACTRIS-2 project, either as formal partners or on a voluntary basis. Participation in ACTRIS-2 has meant an extensive effort with data checking including detailed discussions between the ACTRIS community and individual participants. There is no doubt that this extensive effort has benefited the EMEP program and has led to improved data quality in general.

Comparison between median levels in 2016 compared to the medians of the previous 10-years period, revealed a similar north-to-south pattern for several species.

Changes in instrumentation, procedures, station network etc. during the last two decades make it difficult to provide a rigorous and pan-European assessment of long-term trends of the observed VOCs. In this report we have estimated the long-term trends in NMHC over the 2000-2016 period at six selected sites by two independent statistical methods. These estimates indicate marked differences in the trends for the individual species. Small or non-significant trends were found for ethane over this period followed by propane which also showed fairly small reductions. On the other hand, components linked to road traffic (ethene, ethyne and toluene) showed the strongest drop in mean concentrations, up to 60-80% at some stations. The trend in n-butane was between these two groups of species with an estimated drop in the annual mean concentration of 20-40% over the 2000-2016 period

NILU

2018

Heavy metals and POP measurements, 2016

Aas, Wenche; Bohlin-Nizzetto, Pernilla

NILU

2018

Monitoring of the atmospheric ozone layer and natural ultraviolet radiation: Annual report 2017.

Svendby, Tove Marit; Hansen, Georg Heinrich; Dahlback, Arne

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, 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. There are large inter-annual variations and in 2017 there were relatively low values at all the three Norwegian stations during the winter. However, the ozone situation normalized towards the end of spring.

NILU

2018

Grenseområdene Norge-Russland. Luft- og nedbørkvalitet, årsrapport 2017.

Berglen, Tore Flatlandsmo; Dauge, Franck Rene; Andresen, Erik; Tønnesen, Dag Arild; Vadset, Marit; Våler, Rita Larsen

Smelteverkene i NV-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
2017, samt sesongmiddel vinter 2016/17. Målsettingsverdier for Ni og As er overholdt.

NILU

2018

Discounting the effect of meteorology on trends in surface ozone: Development of statistical tools

Solberg, Sverre; Walker, Sam-Erik; Schneider, Philipp; Guerreiro, Cristina; Colette, Augustin

This report presents the results using a statistical method to single out the influence of interannual meteorological variability on surface ozone. The reason for using such a tool is two-fold: Firstly, to explain the ozone levels in one specific year in terms of weather anomalies and secondly, to estimate the part of long-term ozone trends that is due to the meteorology alone. The method is a so-called GAM (generalized additive model), which could be regarded an advanced multiple regression method relating daily ozone levels to certain meteorological variables. The performance of the method was evaluated by comparing observed ozone data with those predicted by the GAM. This revealed a good to very good agreement in central Europe and Germany in particular. For southern Europe the performance was poorer. The method indicated that meteorology contributed to the downward trend in ozone seen at most sites for both 1990-2000 and 2000-2010.

ETC/ACM

2018

Analyses of selected organic contaminants and metals in drinking bottles. Technical report.

Rostkowski, Pawel Marian; Uggerud, Hilde Thelle; Harju, Mikael; Nikiforov, Vladimir; Borgen, Anders; Kringstad, Alfhild; Bjørklund, Morten; Thomassen, Silje Eltvik; Vadset, Marit; Ghebremeskel, Mebrat; Eikenes, Heidi; Reid, Malcolm James

On behalf of Norwegian Consumer Council NILU has conducted analyses of organic contaminants and metals in the leachate from selected drinking bottles. The simulation of the leakage is conducted based on a compilation of the methods described within NS-EN-1186-9 and NS-EN-13130-1. The instrumental analytical methods used were already established at NILU and NIVA. A number of different organic contaminants and metals have been found in trace amounts in the different products.

NILU

2018

Persistent organic pollutants: assessment of transboundary pollution on global, regional, and national scales

Gusev, Alexey; Rozovskaya, Olga; Shatalov, Victor; Vulykh, Nadejda; Aas, Wenche; Breivik, Knut; Couvidat, Florian; Vivanco, M. G.

Meteorological Synthesizing Centre - East (MSC-E)

2018

Assessment of heavy metal transboundary pollution on global, regional and national scales

Ilyin, I; Rozovskaya, O.; Travnikov, O.; Aas, Wenche; Pfaffhuber, Katrine Aspmo

Meteorological Synthesizing Centre - East (MSC-E)

2018

Environmental pollutants in the terrestrial and urban environment 2017

Heimstad, Eldbjørg Sofie; Nygård, Torgeir; Herzke, Dorte; Bohlin-Nizzetto, Pernilla

Abiotic and biotic samples from the terrestrial and urban environment were analysed for inorganic and various organic contaminants in the Oslo area. The species analysed were earthworms, fieldfare, sparrowhawk, brown rat, tawny owl, red fox and badger. Air and soil samples were also included in the study to increase the understanding on sources and uptake of pollutants. A foodchain approach was used, in order to detect trophic magnification of the different compounds.

NILU

2018

Skogens helsetilstand i Norge. Resultater fra skogskadeovervåkingen i 2017

Timmermann, Volkmar; Andreassen, Kjell; Brurberg, May Bente; Clarke, Nicholas; Herrero, Maria-Luz; Jepsen, Jane Uhd; Solheim, Halvor; Strømeng, Gunn; Talgø, Venche; Vindstad, Ole Petter Laksforsmo; Wollebæk, Gro; Økland, Bjørn; Aas, Wenche

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. Denne rapporten presenterer resultater fra skogskadeovervåkingen i Norge i 2017 og trender over tid for følgende temaer...

NIBIO

2018

Abu Dhabi Air Emissions Inventory

Lopez-Aparicio, Susana; Thorne, Rebecca Jayne; Bartonova, Alena; Teixido, O.; Mohamed, R.

NILU

2018

Satellite data inclusion and kernel based potential improvements in NO2 mapping

Horálek, Jan; de Smet, Peter; Schneider, Philipp; Maiheu, Bino; de Leeuw, Frank; Janssen, Stijn; Benesova, Nina; Lefebvre, Wouter

European Topic Centre on Air Pollution and Climate Change Mitigation

2018

Kvalitetskrav knyttet til luftkvalitetsberegninger i norsk regelverk. Status og anbefalinger til videre prosess

Tarrasón, Leonor; Høiskar, Britt Ann Kåstad; Guerreiro, Cristina; Berge, Erik; Selvig, Eivind

Målet er å belyse hvilke kvalitetskrav som bør stilles til luftkvalitetsberegninger, kart og data til ulike bruksformål slik disse er formulert i norsk regelverk, herunder Forurensningsloven, Folkehelseloven, Plan- og bygningsloven, Retningslinje for behandling av luftkvalitet i arealplanlegging (T1520) m.fl. Miljødirektoratet ønsker å sikre god, enhetlig og sammenlignbar kvalitet og praksis på utredninger av luftkvalitet og har bedt om anbefalinger i form av denne rapporten.

For å få et best mulig grunnlag for å vurdere behovet for veiledning og kvalitetskriterier for ulike anvendelser, har det vært fokus på å innhente informasjon og innspill fra ulike brukergrupper og fagmiljøer. Det er gjennomført en spørreundersøkelse og det er arrangert flere møter og åpne kommentarrunder med ulike brukergrupper og fagmiljøer. Siden eventuelle kvalitetskrav vil kunne ha betydning for konkurranse i markedet og påvirke ressursbruken både hos private aktører og myndigheter, har brukermedvirkning vært et viktig element i dette arbeidet etter ønske fra oppdragsgiver.

NILU

2018

Dataanalyse av støvmålinger i Narvik

Tønnesen, Dag Arild

NILU

2018

Investigation of new brominated and organophosphorous flame retardants in Svalbard benthic marine food web; FlammePlank

Carlsson, Pernilla Marianne; Bohlin-Nizzetto, Pernilla; Vrana, Branislav; Varpe, Øystein; Sobotka, Jaromír; Borgå, Katrine

The aim of this pilot-study was to use silicone rubber-based passive samplers to measure novel brominated flame retardants (nBFRs), polybrominated diphenyl ethers (PBDEs) and dechlorane plus (DP) in seawater and air around Longyearbyen as well as investigate the presence of those compounds in sediment and biota (amphipods, Gammarus spp.) nearby Longyearbyen. Passive samplers require no electricity and provide an integrated picture of the levels of the targeted compounds over time. The results were combined with the sampled sediment and Gammarus spp. to assess concentrations in the environment. Out of all substances under study, PBDE-47 and -99, α- and β- tetrabromoethylcyclohexane (TBECH), syn- and anti-DP were detected in all investigated matrices. Freely dissolved water concentrations of ΣDPs (3 pg/L) were in line with recent Arctic studies, while ΣPBDEs (3 pg/L) were comparable to urban rivers in southern Norway. Nevertheless, for some compounds, especially the lighter and most volatile ones, long-range transport is most likely a more important contribution to observed levels than local sources. For other compounds, e.g. PBDEs, local sources might still play a role for the load of contaminants into the surrounding environment. The present study is the first to report a suit of nBFRs and DPs in Arctic benthic fauna. Many of the nBFRs and DPs were detected in sediment and in the amphipods. We recommend further studies with respect to measurements of concentrations over time, and in other species as well, to better understand whether the nBFRs and DPs are common in the marine environment on Svalbard. We recommend that local sources of flame retardants in remote areas receive more attention in the future.

Norsk institutt for vannforskning

2018

Svevestøvmåling i bydel Fana langs FV546. 23. desember 2016 - 31. desember 2017.

Hak, Claudia

På oppdrag fra Statens vegvesen Region vest har NILU utført målinger av PM10 og PM2.5 ved et boligområde ved Fanavegen (Bergen kommune). Støvende aktivitet i forbindelse med anleggsarbeid genererer svevestøv til sjenanse for berørte naboer. Målingene pågikk i perioden 23. desember 2016 – 31. desember 2017. Resultatene ble rapportert hver måned. Årsmiddel-konsentrasjonene for PM10 og PM2.5 i 2017 var langt under respektive grenseverdier. I måleperioden ble det observert 3 døgn med PM10-døgnmiddelverdier over grenseverdien på 50 μg/m3. Det er tillatt med 30 døgnverdier over dette nivået. Årsaken til høy PM10-konsentrasjon var oppvirvling av svevestøv fra kjørebanen. Så lenge tiltak for å dempe støvoppvirvling ble iverksatt tidsnok, var svevestøvkonsentrasjonen innenfor varslingsklassen for liten eller ingen helserisiko.

NILU

2018

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