Fant 9857 publikasjoner. Viser side 164 av 395:
2011
Monitoring of the atmospheric ozone layer and natural ultraviolet radiation. Annual report 2010. NILU OR
Rapporten presenterer måledata for totalozon, vertikalfordelingen av ozon og UV-stråling over norske målestasjoner i 2010. For Oslo og Andøya er trenden i totalozon beregnet for perioden 1979-2010.
Ozonverdiene over Norge var generelt høye i 2010. Den klare reduksjonen av ozonlaget over Norge i perioden 1979-1997 stoppet opp i 1998 og ozonlaget over Norge ser nå ut til å ha stabilisert seg.
2011
Calculation of pseudo PM2.5 annual mean concentrations in Europe based on annual mean PM10 concentrations and other supplementary data. ETC/ACC Technical Paper, 2010/9
2011
Nedfall av tungmetaller rundt norske industrier studert ved analyse av mose: Undersøkelse i 2010. NILU OR
Etter oppdrag fra Klima- og forurensningsdirektoratet er det gjennomført en undersøkelse av atmosfærisk nedfall av tungmetaller i nærområdet til 16 industribedrifter på 13 forskjellige steder i Norge. Undersøkelsen er basert på analyse av moseprøver innsamlet lokalt rundt hver enkelt bedrift sommeren 2010, og omfatter 59 elementer. I et flertall av tilfellene dreier det seg om gjentakelse av tilsvarende undersøkelser i 2000 og 2005.
2011
NILU har på oppdrag av Silisium- og ferrosilisiumindustriens forskningsforening (FFF) foretatt en vurdering av mulige utslipp av HCB, PCB og PCDD/F til luft fra silisium- og ferrosilisiumverkene i Norge.
Rapporten konkluderer med at smelteprosessene trolig ikke fører til en 'de novo' dannelse av slike klororganiske stoffer. Den oppsummerer alle gjennomførte kontrollmålingene fra smelteverkene og det kan fastslås at 'Worst case' bidragene er mellom en promille og en prosent av norsk totalutslipp og dermed ubetydelig.
2011
2011
2011
2011
Overvåking av langtransportert forurenset luft og nedbør. Årsrapport - Effekter 2010. NIVA-rapport, 6214-2011
2011
2011
Alternative approaches to standard toxicity testing, TQP ID 9 - 257430120 - NILU. NILU OR
Et aminbasert CO2 renseanlegg kan føre til utslipp av aminer til luft. I atmosfæren brytes aminer ned til mange ulike kjemiske forbindelser, deriblant til nitrosaminer og nitraminer. Disse kan ha miljø- og helseskadelige egenskaper. Denne rapporten gir en oversikt over eksisterende data for nitrosaminer og nitraminer og en anbefalning til integrert strategi for testing ved bruk av alternative metoder som in vitro metoder og (Q)SAR for å fylle kunnskapshullene og informasjonskravene for risikovurdering av kjemikalier i REACH.
2011
The report presents the results from the model simulations, performed with the air quality modelling system AirQUIS for the Khalifa Port and Industrial Zone (KPIZ). The report presents the air quality model simulation based on the existing emission and predicted emission scenarios for the KPIZ. The model simulations are also carried out for baseline scenarios in 2010 and future scenarios in 2020 and 2030.
2011
2011
2011
2011
2011
Introduction
Brominated flame retardants such as the polybrominated diphenyl ethers (PBDEs) and
hexabromocyclododecane (HBCD) are well known to be present in indoor air and dust and
contribute to human exposure. However, the influence of indoor contamination on human body
burdens is not fully understood. Some recent studies have suggested that for many individuals
indoor exposures may be comparable to or greater than the dietary intake. The aim of this study
was to characterize exposure pathways to PBDEs and HBCD and compare exposure estimates
with biomonitoring.
Materials and Methods
A study group of 41 female volunteers from the greater Oslo area, Norway was established.
Informed consent was obtained from all the participants and the project was approved by the
Regional Committee for Medical Research Ethics. Samples of house dust as well as indoor air
from the women¿s residences were collected between February and May 2008. The women also
donated serum samples and completed a questionnaire covering demographic information, life
style factors as well as dietary habits. PBDEs and HBCD were determined in all samples types.
Results and discussion
The sum of six tri- to hexa BDEs (BDE-28, 47, 99, 100, 153 and 154) in the women¿s serum
ranged from 0.67 to 30 ng/g lipids, while BDE-209 ranged from 0.46 to 11 ng/g lipids. Of these
PBDEs, only BDE-28 and 47 were found above LOQ in air, in concentrations ranging from
0.78-58 and 1.3-63 ng/m3, respectively. In addition BDE-66 and BDE-49/71 were occasionally
detected. In house dust, the sum 6 PBDEs ranged from 9.3 to 662 ng/g, while the sum of ¿, ß,
and ¿-HBCD ranged from 55-2808 ng/g. Individual PBDE congeners were well correlated
within each sample type. Significant correlations were also found between individual PBDE
concentrations in air and dust as well as between sum 6 PBDE in dust and sum 6 PBDE in
serum. Assuming an ingestion of house dust of 50 mg per day, the intake of sum 6 PBDE ranged
from 0.008 to 0.47 ng/kg bw/day (mean 0.064 ng/kg bw/day). The corresponding value for sum
HBCD was 0.039-2.2 ng/kg bw/day (mean 0.30 ng/kg bw/day). The intake from food has not
been assessed in this cohort yet, but ongoing multivariate regression analyses point to
statistically significant associations between serum concentrations of PBDEs and some variables
in the indoor environment as well as the diet. The dietary intake was estimated to range from
0.14-3.6 ng/kg bw/day (mean 1.1 ng/kg bw/day) for sum 7 PBDEs (sum 6 PBDE + BDE-183)
and 0.06-0.87 (mean 0.27 ng/kg bw/day) for sum HBCD in one of our previous studies on
persons exposed to background contaminated food in Norway. These preliminary findings
suggest that exposure from house dust is important with respect to body burdens of BFRs,
HBCD in particular.
2011
2011