Found 2162 publications. Showing page 68 of 217:
Towards operational satellite based atmospheric monitoring in Norway SatMoNAir. NILU OR
The SatMoNAir project [NSC contract nr. JOP.12.12.2] builds on a previous NRS 'følgemiddel'-project, called `Roadmap towards EarthCARE and Sentinel 5 precursor', within which NILU and met.no developed a strategy for how best to prepare themselves for future European satellite missions for measuring atmospheric composition, with respect to their national monitoring, weather predictions and research tasks. Three specific topics were considered particularly relevant: a. Aerosols ¿Climate effects in Scandinavia and polar regions: analysis of episodes with high aerosol loads for Klif reporting, b. the Use of satellite based ozone measurements in national reporting, and c. Satellite based Air Quality monitoring of remote areas for EMEP reporting. Results from the work performed are described in this report. The outcomes of the project have been utilized in support of the National monitoring of greenhouse gases and aerosols (see Myhre et al., 2012), the atmospheric ozone layer (see Svendby et al., 2012), and have been reported to EMEP.
2013
The present study aimed at the identification and quantification of toxic compounds (nitrosamines and nitramines) resulting from the photochemical oxidation of the two amines (Amine-1 and Amine-2) for use in CO2 capture and the determination of their chemical production yields under various NOx mixing ratios in sunlit chamber experiments at the photo reactor facility EUPHORE in Valencia, Spain. Considering the uncertainties of the two applied nitramine measurement methods, the conversion yield of Amine-1-nitramine for low NOx conditions typical for Mongstad is estimated to range from 1.4% to 4.1%. The candidate for the first generation nitrosamine forming the photo-oxidation of Amine-1 (Amine-1-nitrosamine candidate) was identified by analysis of Thermosorb/N samples in the Amine-1 product yield experiments.
2013
The contaminant situation in the Norwegian-Russian border has caused concern for several decades and considerable amount of data has been gathered during the Pasvik programme (Stebel et al., 2007; Pasvik programme, 2008) for the environmental pollution, but not in this extent for food safety and potential human health risks in this region. Through the compiling of the available literature the authors of this report have identified a number of issues that need further attention.
2013
Review of assessment of existing CAS/DAS, review of technical specification for CAS/DAS. NILU OR
NILU and GIOS, Poland, are implementing the project "Strengthening the air quality assessment system in Poland, based on Norwegian experience" as part of the programme "Improving Environmental Monitoring and Inspection" within the framework of the European Economic Area 2009-2014.
This report is a NILU review of two assessment reports covering Iséo and CSMS data management systems in use in Poland and the draft technical tender for purchasing a new data management system to replace the Iséo systems.
GIOS has, as part of the preparation for tendering, assessed the existing systems in the 16 VIEPs and compiled their findings in two reports. The VIEPs currently have 3 different systems. In the draft tender GIOS asks for a replacement of the existing XR systems from Iséo used in 8 VIEPs.
NILU has reviewed the documents provided by GIOS. However, due to the limited time available for this review, NILU has not carried out any technical testing of the current operational acquisition system, for verification of the documents claim's.
The assessment reports give a good overview of the DAS and CAS systems used in the VIEPs regarding both technical issues and user experiences. The information in the reports feeds into report no. 3 on tender specifications.
2013
The 5-years assessment of air quality, the Norwegian experience. NILU OR
This report describes the Norwegian experience and "best practices" regarding the approach to classify zones and agglomerations in relation to the upper and lower assessment thresholds, as required in Article 5 of Directive 2008/50/ EC and Article 4 of Directive 2004/107/ EC. It is based on the recent air quality assessments done in Norway and gives a brief overview over the available relevant information and methods NILU would consider in such an assessment. A short description of Norway's assessment zones and agglomerations and monitoring networks is also provided.
2013
The objective of the training workshop for Work segment 4 in the "Bangladesh Air Pollution Management" BAPMAN project, is to build local (DOE) capacity for developing an air quality management strategy for the future.
The training workshop was held at NILU, being presented by NILU air quality experts.
The purposes of the workshop were to produce information on the health consequences of air pollution in Dhaka that can be used by local expertise at DOE and in supporting Bangladeshi institutions in the assessment of health impacts. The workshop aimed at developing the fundamental expertise by which objectives and strategies for air quality management can be developed into the future.
2013
Monitoring of the atmospheric ozone layer and natural ultraviolet radiation. Annual report 2012. NILU OR
This is an annual report describing the activities and main results of the monitoring programme "Monitoring of the atmospheric ozone layer and natural ultraviolet radiation" for 2012. In 2012 the ozone values above Norway were close to the long-term mean, except from the ozone winter values in Oslo which were lower than normal. A clear decrease in the ozone layer above Norway during the period 1979-1997 stopped after 1998 and the ozone layer above Norway now seems to have stabilized.
2013
This report was requested by the Norwegian Public Roads Administration (Statens vegvesen) to provide information concerning non-exhaust traffic emissions in Oslo and the impact of changes in environmental speed limits on these emissions. This report provides the results of calculations made with the dispersion model EPISODE coupled to the NORTRIP road dust emission model, a recently developed emission model for calculating non-exhaust emissions. The change in modelled emissions due to changes in environmental speed limit are calculated for two different speed scenarios, where 'speed limit' and 'realistic speed' changes are compared. In addition the impact of the environmental speed limit is compared to other road dust control measures involving studded tyre share and heavy duty vehicle reduction, taken from a previous report.
2013
This report was requested by the Norwegian Public Roads Administration (Statens vegvesen) to provide information concerning non-exhaust traffic emissions in Oslo and the impact of various traffic parameters and road maintenance activities on these emissions. This report provides the results of calculations made with the NORTRIP model, a recently developed emission model for calculating non-exhaust emissions. The sensitivity of the modelled emissions to traffic parameters such as studded tyre share and fraction of heavy duty vehicles is investigated. In addition the impact of salting and cleaning is addressed.
2013
Chemical speciation of fine airborne particles in Abu Dhabi. NILU OR
PM2.5 was sampled at two urban background sites in Abu Dhabi (Khalifa in the city of Abu Dhabi and Bida Zayed) and analysed chemically for further source identification and quantification. Understanding of source contributions to PM2.5 is a prerequisite for the formulation of effective control strategies for PM2.5 emissions.
For both sites, five source factors were identified. Long-range transported aerosol is the largest contributor (~41%) to average PM2.5 mass concentrations at both sites. It gradually forms from SO2, which is possibly emitted into ambient in the Arabian Gulf area, while it is transported to the sites. Mineral dust was found to be the second most important source, contributing ~25% at both sites. It represents an ubiquitous natural contribution of mainly regional origin to particulate matter in Abu Dhabi.
Other source contributions to particle concentrations found at Khalifa identified were: local traffic (15.1%), shipping/industry (10.5%) and sea salt (4.0%). The latter is a natural contribution.
At Bida Zayed, a mixed traffic/industry factor (13.2%) was found, as well as another two factors of natural origin, explaining 11.4% and 8.7%
2013