Found 2226 publications. Showing page 81 of 223:
E16 Bjørum - Skaret. Evaluating air quality around openings of tunnels. NILU OR
Dispersion calculations regarding the tunnel connections along E16 Bjørum - Skaret. Dispersion distances have been calculated.
2012
SK-1401 Mongstad. Dispersion calculations. NILU OR
Norwegian Institute for Air Research (NILU) has performed dispersion calculations of emissions to air from stack SK-1401 at Mongstad refinery. Dispersion of CO2 and SO2 is calculated and analyzed. NILU has also evaluated the calculated concentrations from a HSE point of view, including life time/degradation of the components. The calculated concentrations have been added to existing background concentrations at Mongstad and the calculated total concentrations have been compared to air quality guidelines and threshold values. The defined Worst Case emission scenario exeeds the air quality limit for hourly concentrations of SO2. An alternative emission arrangement have been calculated, and this emission scenario does not exeed the air qualyi limit.
2012
Rotational Raman scattering (RRS) causes filling-in of absorption lines in Earth shine spectra. It is routinely accounted for in analysis of UV and visible spectra measured both by satellite and ground-based instruments. RRS is also present at longer wavelengths, however, the magnitude generally decreases with increasing wavelength due to decrease in the scattering cross section. For high-resolution spectral measurements the effect may be noticeable. Depending on the application, RRS thus needs to be quantified and possibly corrected for. Of special interest is the effect of RRS in the O2-A (759-769 nm) and O2-B (686-697 nm) bands. Here, the effect of RRS in these bands is studied for the present and future satellite instruments CarbonSat, FLEX/FLORIS, MERIS and OLCI.
2012
Indoor air quality investigation sector E3-02. NILU OR
Abu Dhabi Municipality has chosen the Norwegian Institute for Air Research (NILU) to perform indoor air quality investigation for six buildings in sector E3-02 (one School, one Mosque, one commercial building and three Residential building).
The main goal of this task is to define the main pollutants that could be found in the buildings and to define the status of existing buildings with respect to indoor air quality.
The results of measurements that were conducted at different locations have shown that there was a wide mold growth in the duct of ventilation system due to poor maintenance in all studied buildings, also that carbon dioxide (CO2) and voltaic organic compound (VOC) are considered the main pollutants that could found and affect the indoor air quality in these buildings.
In most of tested locations, the CO2 concentration has exceeded the standard limit, the readings were very high in the school, mosque, and to a lesser extent in commercial building.
2012
Assessment of traffic noise and mitigation options for Al Salam Street. NILU OR
Acting on request from the Abu Dhabi Municipality, Norwegian Institute for Air Research has been asked by the Abu Dhabi Municipality to evaluate the current noise levels on Salam Street and recommend mitigation measures to control the noise.
NILU provided traffic count data collected near the Sheikh Zayed Bridge and these were used in conjunction with an acoustic model to predict the existing noise conditions at 126 sensitive receptor locations.The predicted sound levels were compared to measured sound levels collected at seven (7) locations along Al Salam Street to validate the results of the modelling. This comparison showed strong correlation between the modelled and measured results.
Several mitigation options provided by NILU were incorporated into subsequent runs of the baseline model in order to predict the effectiveness of each option. It was found that the installation of a 5 m barrier adjacent to the outbound lanes of Al Salam Street would be the most effective individual mitigation option.
2012
Indoor air quality study for the Norwegian Embassy in Abu Dhabi. NILU OR
NILU has been asked by the Norwegian Embassy in Abu Dhabi to carry out an indoor air quality(IAQ) study. The results have shown that there is a big variation in the temperatures ( ¿10 C) between the monitored locations in the office. Data analysis from employees survey about indoor air have shown that employees do not feel comfortable with the temperature conditions. In addition mould growth was detected in Ambassador¿s office.
CO2 concentration exceeded the acceptable limit in two locations, because the ventilation system is not capable to provide sufficient amount of fresh air to the number of occupants. The conclusion was that the main problem was related to the unbalanced ventilation system creating improper air circulation leading to high CO2 concentrations and large differences in temperatures.
2012
BASELINE ambient air quality monitoring at KPIZ, Abu Dhabi. NILU OR
Abu Dhabi Ports Company (ADPC) is a master developer and regulator of ports in Abu Dhabi Emirate. The development of Khalifa Port and Industrial Zone (KPIZ) is one of the major strategic projects undertaken by ADPC. The KPIZ is located at Al Taweelah, midway between Dubai and Abu Dhabi City.
The survey aims to establish background AAQ levels at the project site and to compare the measured data with pertinent ambient air quality standards.
This report provides a summary of ambient air quality and meteorological measurements carried out during the 6 month period 24 August 2010 to 24 February 2011 which is referred to as Report No. 6.
2012
2012
Deposition of major inorganic compounds in Norway 2007-2011. NILU OR
The total deposition of sulphur and nitrogen compounds in Norway during the period 2007-2011 has been estimated on the basis of available measurement data for concentrations and precipitation. Deposition of non-marine base cations is also estimated. Results are compared with previous estimates for 2002-2006.
2012