Sökning: "rain pH"
Visar resultat 16 - 20 av 20 avhandlingar innehållade orden rain pH.
16. Dissolution Kinetics and Alteration Products of Micas and Epidote in Acidic Solutions at Room Temperature
Sammanfattning : The reaction kinetics of the weathering of several phyllosilicates and one sorosilicate were stud ied experimentally. The alteration products were characterised by various methods in clud ing XRD, HRTEM, SEM, FTIR, NMR and Mössbauer spectroscopy. LÄS MER
17. On enchytraeids and naidids: Life history traits and responses to environmental stress
Sammanfattning : My thesis shows that enchytraeids and naidids are sensitive to various forms of environmental stress, which in combination with the wide distribution of both families make them highly suitable for use in risk assessment and soil monitoring. Enchytraeids were subject to chemical stress under both laboratory and field conditions. LÄS MER
18. The effect of forest nutrients status on ectomycorrhizal growth and community structure in response to minerals
Sammanfattning : Ectomycorrhiza are a symbiosis between trees and soil inhabiting fungi. The fungal hyphae ensheath the fine roots creating a mantle and grow in between root cells to create the Hartig net, where the exchange of carbon and mineral nutrients occurs. The ectomycorrhizal fungus is dependent on the host tree to receive the carbon it needs to grow. LÄS MER
19. Corrosion-included metal runoff from external constructions and its environmental interaction : a combined field and laboratory investigation of Zn, Cu, Cr and Ni for risk assessment
Sammanfattning : The 1990s has seen an increased awareness of possible environmental effects of corrosion-induced metal release from outdoor constructions. Considerable efforts have been initiated to perform critical assessments of possible risks of selected metals. Gaps of knowledge have been identified and research investigations started. LÄS MER
20. Process water geochemistry and interactions with magnetite at the Kiirunavaara iron mine, northern Sweden
Sammanfattning : Current global estimates indicate that ca. 2400 million tonnes of iron is produced annually, most of which is used to make steel. Due to the associated costs, environmental challenges and energy consumption, steel is one of the world’s most intensively recycled materials. For example, about 98 % of structural steel is recycled in the USA. LÄS MER
