Found 9759 publications. Showing page 200 of 391:
I et samarbeidsprosjekt med Lørenskog kommune utførte NILU en målekampanje rundt ett av boligbyggeprosjektene på Lørenskog. Formålet med målingene var å få økt kunnskap om svevestøvnivåer i omgivelsene til anleggsplasser. Målingene ble utført ved 2 steder rundt en byggeplass på Skårerbyen.
Måleresultatene viser at PM10 nivået var høyere rundt anleggsplassen enn ved en nærliggende veinær målestasjon. Observasjonene tyder på at anleggsaktivitet var årsaken. Et viktig resultat fra målekampanjen er at målinger av svevestøv med optiske målemetoder ikke anses som egnet i områder der anleggsstøv dominerer.
NILU
2023
Kartlegging av svevestøv i datasenter på Fet. Måling av PM10 og PM2,5 hos Digiplex. NILU rapport
NILU was commissioned by Digiplex to map the presence of airborne dust in their data centre located at Fet, Romerike. The purpose of the project was to map the concentrations of airborne dust (PM10and PM2,5 )in a corridor and a server room, as well as assess the results against recommended values given by FHI and limit values given by the Ministry of Labour and Social Affairsin 'Forskrift for tiltaks-og grenseverdier'. Generally, the measured concentrationsof both particle fractions were very low. All measured concentration of PM2,5 lies far below FHI's recommended values for PM2,5 in indoor air. 8-hour average measured for PM10shows a concentration level far lower than the limit value given by Arbeids- og sosialdepartementet in 'Forskrift for tiltaks-og Grenseverdier'. This also applies to the measured concentration of Zn as compared to the limit value given in the same regulation.
2017
2006
NILU – Norsk institutt for luftforskning og Ingenia AS har på oppdrag fra Statens vegvesen kartlagt effekten ventilasjonstårnene i Ekeberg- og Bjørvikatunnelen har med hensyn til å redusere luftforurensning fra dagsonen på Sørenga. Prosjektet besto av et omfangsrikt måleprogram i og rundt Operatunnelen i Bjørvika, en vurdering av ventilasjonstårnenes effekt basert på målingene og forslag til prinsipper for et nytt styringsregime.
Drift av ventilasjonstårnene ble funnet å ha en tydelig effekt på PM10- og NO2-konsentrasjonen i dagsonen og på bakkenivå utenfor dagsonen fra trinn 3 (av 4). Forslaget til nytt styringsregime fokuserer på ventilasjonstårndrift i piggdekksesongen og avhengighet av ytre forhold.
NILU
2021
2023
2016
Kimek Kirkenes - monitoring of dust Dec. 2013 - May 2014. NILU OR
NILU has conducted a monitoring program at the Kimek industrial site in Kirkenes from Dec. 2013 ¿ May 2014 in order to quantify dust. The results show high concentrations in 4 months out of 6. Maximum value was 23,00 g dust/(m2 30 days), at station 2 in February. There were high values observed also in periods with no sandblasting of ships, e.g. 18,94 g/(m2 30 days) at station 2 in January. This indicates that there are other significant sources of dust in the area. The values at the neighbours close to Kimek are probably lower than the threshold value stated in the Norwegian legislation (5 g dust/(m2 30 days), due to the fact that they are located on the other side of the tall Kimek shipyard building and not downstream in the prevailing wind direction.
2014
2002
2019
The PLASTOX project investigates the ingestion, food-web transfer, and ecotoxicological impact of microplastics (MPs), together with the persistent organic pollutants (POPs), metals and plastic additive chemicals associated with them, on key European marine species and ecosystems. PLASTOX combines field-based observations, laboratory tests and manipulative field experiments to study the ecological effects of MPs.
As part of a long-term field experiment conducted at marine locations across Europe (Mediterranean to Arctic), a range of different virgin polymer pellets, post-use polymers (LDPE, PP, PS and PET), as well as marine litter-derived microplastic particles, were deployed underwater for up to 12 months in the small boat harbour of Tromsø, Northern Norway. The deployment device consisted of an empty stainless steel SPMD canister, with the various plastic types placed in reusable, empty 'teabags' made of PP, placed separately in nylon netting. Sampling was conducted 1 week, 1 month, 3 months, 6 months and 12 months after deployment. Hydrophobic persistent organic pollutants such as PAHs, PCBs, DDTs, PBDEs and pesticides that had become associated with the plastic were measured and their adsorption kinetics in seawater under Arctic conditions established. Samples were extracted using ultrasound and non-polar solvents, followed by GPC and SPE clean up prior to chemical analysis and quantification by GC/MS/MS and GC/qMS. The release kinetics of common plastic additives, including phthalates, organophosphate esters, bisphenols and perfluorinated chemicals, were estimated from four types of post-industrial virgin pellets (LDPE, PS, PVC, PET) according to the same sampling protocol. Chemical analysis was performed using either GC/MS or LC-QTOF.
Results show that HCB and PCBs represented the dominant pollutant classes adsorbing to all of the different polymer types, but at concentrations that are more than 10-times lower than those previously reported. However, equilibrium between pollutants and the polymers was not reached during the deployment period, indicating that Arctic conditions may result in different sorption kinetics than observed in temperate regions.
2018
2018
2003
2012