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Visar resultat 1 - 5 av 30 avhandlingar som matchar ovanstående sökkriterier.
1. Dynamic headspace : a versatile method for analysing volatile compounds in polymers
Sammanfattning : .... LÄS MER
2. Applications of Solid-Phase Microextraction to Chemical Characterization of Materials Used in Road Construction
Sammanfattning : Environmental and health aspects of road materials have been discussed for a long time, mostly regarding bitumen and bitumen fumes. However, just a few studies on other types of road materials have been reported. LÄS MER
3. Determination of benzene in urine and breath for monitoring of benzene exposure
Sammanfattning : The aim of this work was to develop and validate methods for determination of unmetabolized benzene in breath and urine. The methods were intended for the bio monitoring of benzene to assess both occupational and environmental exposure.A method was developed for the determination of benzene in end-exhaled air. LÄS MER
4. Biodegradation of hydrocarbons in soil and water
Sammanfattning : Biodegradation of aliphatic and polycyclic aromatichydrocarbons was studied in soil and liquid cultures attemperatures ranging from -5 º C to 20 º C undervarious aerobic or anaerobic, nitrate reducing, conditions. Twocontaminated soils were used in the studies. LÄS MER
5. Chemical emissions from concrete
Sammanfattning : The major part of this work deals with a new method for quantification of VOCs in concrete. There is a need for this type of quantification due to the development in cement and concrete production using plasticizing agents and fillers for improved rheological properties, and alternative fuels and waste materials to reduce the environmental impact of cement production. LÄS MER