Sökning: "Kvicksilver"
Visar resultat 11 - 15 av 24 avhandlingar innehållade ordet Kvicksilver.
11. Structuring empirical knowledge on environmental issues : urban heavy metal metabolism
Sammanfattning : During the last century, there has been a large import of heavy metals to urban areas. Only a small fraction, about 10%, has reached the biosphere, the rest is still residing in various goods such as cables, construction materials, technical equipment and batteries, which are still in use or abandoned in infrastructure, buildings, households, enterprises and vehicles. LÄS MER
12. Responses to reduced industrial metal emissions : An ecotoxicological study on Pied Flycatcher (Ficedula hypoleuca, Aves)
Sammanfattning : Metals have been used by humans for thousands of years, and this has resulted in increased concentrations in the biosphere. The environment around point-sources, such as mines and smelters, are of particular concern, as metals may accumulate to high concentrations, and potentially reach levels toxic to the local flora and fauna. LÄS MER
13. Child labour and health hazards: chemical exposure and occupational injuries in Nicaraguan children working in a waste disposal site
Sammanfattning : About 600 children and teenagers work at Managua's landfill, the largest in Nicaragua. They collect and sort waste at the open dump, which covers an area of 7 km2 on the outskirts of the city on the shores of Lake Managua. LÄS MER
14. Environmental Monitoring by Multi-Spectral Lidar Techniques
Sammanfattning : Multi-spectral lidar (light detection and ranging) techniques have been developed and employed in various environmental studies, ranging from concentration mapping of volcanic emissions to fluorescence imaging of historical monuments. In both absorption measurements of gaseous species and fluorescence imaging of stones, multiple wavelength excitation and multiple wavelength detection have been applied. LÄS MER
15. Occupational health risks in dentistry - musculoskeletal disorders and neuropathy in relation to exposure to physical workload, vibrations and mercury
Sammanfattning : The aim of the thesis was to focus on the occupational health risks in dentistry with emphasis on musculoskeletal disorders in the neck and upper limbs and neuropathy in the hands, in relation to exposure to physical workload, vibration and mercury. An increased high frequency of long-lasting and wide-spread musculoskeletal symptoms in the neck and shoulder regions (58-75% during the past 12 months) was found in dentists and dental hygienists compared to different referent groups; furthermore, wrist/hand (46-59%) and hip (19-27%) disorders as well in female dentists and dental hygienists. LÄS MER
