Found 10000 publications. Showing page 12 of 400:
2000
The paint steel panels coated with two layers alkyd paint (total 80 µm) have been exposed for 1 and 2 years. The damage of the paint system has been evaluated by using the well-established ASTM-standards. Damage from the cut is observed at all test sites, and after two years. ASTM values from 9 to 6 are observed. Comparing the results with the environmental parameters seems to indicate that the damage is affected by air pollution like in the big cities. However, the damage is also surprisingly high at rural sites, particularly at sites with high amount of rain.Filiform corrosion, shown as thin whiskers under the paint film from the cut, is more dominated in the second phase of the programme than in first phase 1987-1989.Cracking of the corrosion protection paint films has been observed on samples from the Tel Aviv site after two years, but was never observed in the first phase of the programme.
2000
2000
A comprehensive study of the occurrence and extent of air pollution along the Russion border in Sør-Varanger county started in 1988. -The measurement programme includes air quality, meteorological conditions and precipitation chemistry. The highest SO2 -concentrations in Norway are measured in this area. The smelters in Nikel and Zapoljarnij are the main sources of SO2 in the area.
2000
The main purpose of mission 16 was to introduce a new technique for analysis of volatile organic compounds (VOC) in air samples, and to do on the job training of the staff at Centre for Environmental Hazards Mitigation (CEHM) at the Cairo University, Giza. Due to major changes in staff at the laboratory during the visit, it was not possible to complete the training program according to the original plan. The equipment for sampling and analysis has been checqued and tested and further needs of equipment has been evaluated.
2000
Assessment of emissions/ discharges of mercury reaching the Arctic environment. NILU OR
Our knowledge of mercury fluxes on a global scale is still incomplete. The above presented estimates for Europe and North America seem to contribute less about 25 % to the global anthropogenic emissions of the element to the atmosphere. The majority of the remaining emissions originate from combustion of fossil fuels, particularly in the Asian countries including China, India, and South and North Korea. Even less and very controversial information is available on emissions of mercury from natural sources, including volatilization of the element from terrestrial and aquatic surfaces. In general, it is assumed that natural emissions of the element are about 3000 t/year, thus contributing more 60 % to the total global emissions of mercury. However, much work needs to be done in order to verify the above estimate.
2000
The eighteenth mission to Egypt on the DANIDA EIMP programme included monitoring programme auditing, QA/QC procedures, training and reporting. Monthly and Quarterly air quality data reports were produced and presented. Training in QA/QC operations and reporting was given to the Monitoring Laboratories. Results were reported in Newsletters and a specific training seminar was given on "Understanding air pollution".
2000
2000