Sökning: "Dioxiner i fisk"

Hittade 3 avhandlingar innehållade orden Dioxiner i fisk.

  1. 1. Att ta ställning : Gymnasieelevers argumentation och beslutsfattande om sociovetenskapliga dilemman

    Författare :Martin Eriksson; Carl-Johan Rundgren; Malin Ideland; Karlstads universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Science education; Socioscientific issues; SSI; Argumentation; Informal argumentation; Decision-making; Naturwissenschaftliche Unterricht; Naturvetenskaplig undervisning; Samhällsfrågor med naturvetenskapligt innehåll; SNI; Sociovetenskapliga dilemman; SSI; Argumentation; Beslutsfattande; Vargar; Dioxiner i fisk; Kemi; Chemistry;

    Sammanfattning : This thesis aims to explore students’ argumentation and decision-making relating to authentic socioscientific issues (SSI). The ability to make informed decisions about socio scientific issues has been recognized to be an important element in science education to achieve the goal of scientific literacy. LÄS MER

  3. 2. Uptake, turnover and distribution of chlorinated fatty acids in aquatic biota

    Författare :Helena Björn; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; porpoise; fish; metabolism; food chain; respiration; membrane; phospholipid; chlorohydrins; lipid; Ecology; Ekologi;

    Sammanfattning : Chlorinated fatty acids (ClFAs) are the major contributors of extractable, organically bound chlorine in fish lipids. A known anthropogenic source of ClFAs is chlorine bleached pulp production. Additional anthropogenic sources may exist, e.g. LÄS MER

  4. 3. EXPOSURE TO PERSISTENT ORGANOCHLORINE POLLUTANTS AND MALE SEMEN FUNCTION

    Författare :Anna Rignell-Hydbom; Avdelningen för arbets- och miljömedicin; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Miljömedicin; Environmental health; epididymal and accessory sex gland function; Y:X sperm chromosome ratio; sperm chromation integrity; sperm concentration; sperm motility; persistent organochlorine poluutants;

    Sammanfattning : Persistent organochlorine pollutants (POPs), such as polychlorinated biphenyls (PCB) and the insecticide dichloro-diphenyl-dichloro-ethylene (DDT) have been released into the environment mainly since the second World War. POPs accumulate especially in highly ranked predators of the aquatic food chain. LÄS MER