Sökning: "exposure"

Visar resultat 16 - 20 av 3714 avhandlingar innehållade ordet exposure.

1. 16. Assessment of Environmental Pollutants in Humans from Four Continents : Exposure levels in Slovakia, Guinea-Bissau, Nicaragua and Bangladesh

   Författare :Linda Linderholm; Åke Bergman; Maria Athanasiadou; Kristina Jakobsson; Myrto Petreas; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; POPs; PCB; DDT; PBDE; HCH; metabolites; human exposure; children s exposure; placental transfer; Environmental chemistry; Miljökemi; miljökemi; Environmental Chemistry;

   Sammanfattning : Humans are continuously exposed to complex mixtures of anthropogenic chemicals. This thesis focus on human exposure to persistent organic pollutants (POPs). POPs ability to bioaccumulate and biomagnify together with the extensive historical use of POPs in e.g. LÄS MER

3. 17. Assessment of human exposure to per- and polyfluorinated compounds (PFCs) : exposure through food, drinking water, house dust and indoor air

   Författare :Ingrid Ericson Jogsten; Gunilla Lindström; Bert van Bavel; Stuart Harrad; Örebro universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; human exposure; per- and polyfluorinated compunds PFCs ; dietary intake; drinking water; indoor environment; TECHNOLOGY; TEKNIKVETENSKAP; Environmental chemistry; Miljökemi; Chemistry; Kemi; Miljökemi; Environmental Chemistry; Kemi; Chemistry;

   Sammanfattning : Per- and polyfluorinated compounds (PFCs) are detected in humans worldwide but all sources of human exposure have not been fully characterized. The aim of this thesis was to evaluate the contributions from food, water, air and dust as sources for human PFC exposure in the general population. LÄS MER

4. 18. Fate and exposure assessment of PCDD/Fs at contaminated sites

   Författare :Annika Åberg; Karin Wiberg; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; contaminated sites; dioxins; PCDD F; exposure; food chain; modeling; risk assessment; physical-chemical properties; förorenade områden; dioxiner; PCDD F; exponering; födokedja; modellering; riskbedömning; fysikaliska-kemiska egenskaper; Environmental chemistry; Miljökemi;

   Sammanfattning : Polychlorinated dibenzo-p-dioxins (PCDD) and polychlorinated dibenzo-furans (PCDFs) belong to the most toxic compounds known to science and they are defined as Persistent Organic Pollutants (POPs) under the Stock-holm Convention. The general human exposure to PCDD/Fs is primarily through dietary intake. LÄS MER

5. 19. Nanoparticles: Characterization and exposure metrics

   Författare :Linus Ludvigsson; Fasta tillståndets fysik; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; SEM; TEM; Nanoparticles; Aerosols; occupational exposure; CNTs; Fysicumarkivet A:2014:Ludvigsson;

   Sammanfattning : Exposure to aerosol nanoparticles has always been present in the evolution of humans, and thus has the human body developed ways of dealing with particles that enters the body. However with the emerging nanotech industry, new types of nanoparticles are being produced and used. LÄS MER

7. 20. Blood exposure in health care : health care workers' and patients' experiences

   Författare :Ulla-Britt Lymer; Barbro Isaksson; Bengt Richt; Vivi-Anne Sundquist; Linköpings universitet; []
   Nyckelord :Blood-exposure; needle-stick; compliance; universal precautions; balancing; quaIity care; nursing; patients conceptions; grounded theory; phenomenography; MEDICINE; MEDICIN;

   Sammanfattning : The general aim of this thesis was to describe and analyse health care workers' blood-exposure incidents, protective measures, and the motives behind decision making about risks and protective measures. The aim was also to procure knowledge about patients' conceptions about their care, and if precautions taken by the health care workers were included in quaiity care. LÄS MER