Fant 9758 publikasjoner. Viser side 315 av 391:
2020
2020
Målinger av SO2 i omgivelsene til Elkem Carbon og REC Solar. September 2019 – august 2020.
On behalf of Elkem Carbon AS, NILU has carried out measurements of SO2 in the surroundings of Elkem Carbon and REC Solar in Vågsbygd (Kristiansand municipality). The companies were ordered by the Norwegian Environment Agency to carry out SO2 measurements in ambient air. The measurements were performed with an SO2 monitor in the residential area at
Fiskåtangen (Konsul Wilds vei) and with passive SO2 samplers at 6 locations around the industries. The report covers
measurements in the period 1. September 2019 – 31. August 2020. Norwegian limit values for air quality (SO2) were complied with at Konsul Wilds vei for all averaging periods required by the air quality directive (annual average, winter average, daily average and hourly average). The most polluted locations during the measurement period were Konsul Wilds vei and Fiskåveien just south of the industries.
NILU
2020
2020
Apex predators are characterized by high levels of biomagnifying organohalogenated contaminants (OHCs) which have been found to induce detrimental health effects in wildlife, such as immune system impairment. The leukocyte coping capacity (LCC) assay is a functional real-time measure of an innate immune response essential in pathogen resistance, known as the respiratory burst. The current study suggests the novel use of this tool to test whether OHCs impair the innate immune system of a sentinel top predator, the white-tailed eagle (Haliaeetus albicilla; WTE). The LCC analysis was performed in the field on WTE nestlings (n = 84) from northern Norway over two breeding seasons. Poly- and perfluoroalkyl substances (PFAS) dominated the total OHC load, surpassing the levels of legacy organochlorines. In addition, we detected significant negative correlations between concentrations of all polychlorinated biphenyls, p,p′-dichlorodiphenyldichloroethylene, perfluorohexane sulfonic acid and long-chain perfluorocarboxylic acids and the LCC of WTE nestlings. Based on our current findings reflecting a potential negative effect of both emerging and legacy OHCs on innate immune capacity, we suggest LCC to be a relevant and accessible test expanding the ecotoxicological toolbox to assess sub-lethal effects of OHCs in apex avian wildlife.
Elsevier
2020
2020
Investigating the presence and persistence of volatile methylsiloxanes in Arctic sediments
Royal Society of Chemistry (RSC)
2020
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
Even though production and open use of polychlorinated biphenyls (PCBs) have been phased out in Western industrialised countries since the 1980s, PCBs were still present in waste collected from different waste handling facilities in Norway in 2013. Sums of seven indicator-PCBs (I-PCB7: PCB-28, -52, -101, -118, -138, -153 and -180) were highest in plastic waste (3700 ±1800 μg/kg, n=15), waste electrical and electronic equipment (WEEE) (1300 ± 400 μg/kg, n=12) and fine vehicle fluff (1800 ± 1400 μg/kg, n=4) and lowest in glass waste, combustibles, bottom ash and fly ash (0.3 to 65 μg/kg). Concentrations in leachate water varied from 1.7 to 2900 ng/L, with higher concentrations found at vehicle and WEEE handling facilities. Particles in leachate water exhibited similar PCB sorption properties as solid waste collected on site, with waste-water partitioning coefficients ranging from 105 to 107. I-PCB7 in air samples collected at the sites were mostly in the gas phase (100–24000 pg/m3), compared to those associated with particles (9–1900 pg/m3). In contrast brominated flame retardants (BFRs) in the same samples were predominantly found associated with particles (e.g. sum of 10 brominated diethyl ethers, ΣBDE10, associated with particles 77–194,000 pg/m3) compared to the gas phase (ΣBDE10 6–473 pg/m3). Measured gas-phase I-PCB7 concentrations are less than predicted, assuming waste-air partitioning in equilibrium with predominant waste on site. However, the gas-particle partitioning behavior of PCBs and BFRs could be predicted using an established partitioning model for ambient aerosols. PCB emissions from Norwegian waste handling facilities occurred primarily in the form of atmospheric vapor or leachate particles.
Elsevier
2020
2020
Risk governance of emerging technologies demonstrated in terms of its applicability to nanomaterials
2020