Sökning: "Pesticide"

Visar resultat 6 - 10 av 70 avhandlingar innehållade ordet Pesticide.

  1. 6. Bioaugmentation for reduction of diffuse pesticide contamination : a bioprophylactic concept

    Författare :Karin Önneby; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Pesticides and their residues frequently contaminate surface waters and groundwater so consequently there is a great need to identify methods and practices that reduce such contamination. This thesis examined the potential of a 'bioprophylactic' concept based on the hypothesis that diffuse contamination after application in the field can be significantly reduced if pesticides are degraded as rapidly as possible after the intended effect has been achieved. LÄS MER

  3. 7. Sample Handling Techniques in Biological and Environmental Applications Emphasizing Biomolecular Recognition and MALDI-TOF MS

    Författare :Patrik Önnerfjord; Reumatologi och molekylär skelettbiologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; protein identification; microchip IMER; microdispensing; MALDI-TOF MS; fluorescence polarization; flow immunoassay; pesticide immunoassays; phenol biosensor; restricted access media; SPE; Analytical chemistry; Analytisk kemi;

    Sammanfattning : The use of restricted access media and other stationary phases for clean-up and trace enrichment of environmental samples coupled on-line to liquid chromatography using diode array detection as well as thermospray MS is described. This on-line configuration was compared with commercially available ELISAs for the determination of triazines in complex matrices, showing superior precision and accuracy with the chromatographic method. LÄS MER

  4. 8. Dermal exposure determinants : a pesticide exposure assessment approach for developing countries

    Författare :Luis E Blanco Romero; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Dermal exposure; pesticides; determinants of dermal exposure to pesticides; subsistence farmers; fluorescent tracer; visual scoring system;

    Sammanfattning : Background: We know little about the levels of exposure to pesticide in subsistence farmers mainly because of lack of easy to use and low cost pesticide exposure assessment methods. Aim: This thesis aimed to develop a semi-quantitative approach to assess dermal exposure to pesticides relevant for conditions in developing countries. LÄS MER

  5. 9. Health effects from pesticide use in Costa Rica : an epidemiologic approach

    Författare :Catharina Wesseling; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : The use of toxic pesticides is increasing in developing countries, often under unsafe conditions. Poisonings are a well-known but underreported public health problem, and studies on long-term effects are sparse. LÄS MER

  7. 10. Environmental Pesticide Exposure and Neurobehavioral Effects among Children of Nicaraguan Agricultural Workers

    Författare :Teresa Rodríguez; Catharina Wesseling; Ingvar Lundberg; Berna van Wendel de Joode; Ingvar Bergdahl; Uppsala universitet; []
    Nyckelord :pesticides; organophosphates; pyrethroids; children; cognitive function; behavioral outcomes; neurodevelopment; Occupational and Environmental Medicine; Arbets- och miljömedicin; Epidemiologi; Epidemiology;

    Sammanfattning : Background: Children exposed to pesticides are susceptible for neurodevelopmental disruption. Data from developing countries are scarce.Aim: Assessing long-term and recent pesticide exposure in Nicaraguan children in relation to parental pesticide use and examining potential associated neurobehavioral effects. LÄS MER