Sökning: "dichlorodiphenyltrichloroethane"

Visar resultat 1 - 5 av 6 uppsatser innehållade ordet dichlorodiphenyltrichloroethane.

1. 1. Reproductive status of the female Baltic ringed seal

   Uppsats för yrkesexamina på avancerad nivå, SLU/Dept. of Clinical Sciences

   Författare :Alexandra Odevall; [2019]
   Nyckelord :Baltic ringed seal; occlusion; PCB; DDT; reproduction;

   Sammanfattning : The population of ringed seals in the Baltic Sea was estimated to around 190 000–220 000 individuals in the 1900’s and decreased to approximate 5 000 in the late 1970s. The number of pregnant females also decreased during this time. LÄS MER

3. 2. Probabilistic ecological risk assessment of secondary poisoning from DDT

   Master-uppsats, Lunds universitet/Miljövetenskaplig utbildning

   Författare :Alice Rundegren; [2019]
   Nyckelord :probabilistisk riskbedömning; toppredatorer; DDT; diklordifenyltrikloretan; plantskola; skogsplantskola; artkänslighetsfördelning; bioackumulering; förorenad mark; indirekt exponering; Monte Carlo simulering; probabilistic risk assessment; plant nursery; species sensitivity distribution; polluted soil; indirect exposure; bioaccumulation; Monte Carlo simulation; dichlorodiphenyltrichloroethane; Earth and Environmental Sciences;

   Sammanfattning : Although prohibited since decades, dichlorodiphenyltrichloroethane (DDT) and its metabolites still remain in the soil and pose a threat to ecosystems, where especially birds are susceptible to toxic effects. In this thesis, a model developed in the 1990s was used and updated in order to estimate the risks of DDT to top predators at a forest-plant nursery site. LÄS MER

4. 3. Hur riskerar föroreningarna att medföra olägenheter för människors hälsa och miljön? En MIFO fas 1 inventering av en nedlagd handelsträdgård i Marieholm, Eslövs kommun

   Magister-uppsats, Lunds universitet/Miljövetenskaplig utbildning

   Författare :Johan Edlund; [2018]
   Nyckelord :contaminated soil; Pollutants; health risks methylmercury; Earth and Environmental Sciences;

   Sammanfattning : During this thesis I have used a methodology called MIFO ‘Metodik för Inventering av Förorenade Områden’ (english: Method of Surveying Contaminated Sites), to investigate the contamination situation on a property plot in the municipality of Eslöv, Sweden where a former trading garden was active during the late thirties to the early eighties. A contaminated site is a site where the levels of a contamination is higher than the background levels of contamination on a regional or local level. LÄS MER

5. 4. Spatial distribution of persistent organic pollutants (POPs) in sediments contaminated by fiber material from pulp and paper industries

   Master-uppsats, SLU/Dept. of Aquatic Sciences and Assessment

   Författare :Gabriel Dupaul; [2018]
   Nyckelord :PCB; DDT; HCB; fiberbank; fiber-rich sediment; sediment; Sweden; Västernorrland; Ångermanälven; Gulf of Bothnia; Baltic sea;

   Sammanfattning : Sweden has had a long history of forestry activities together with pulp and paper operations. Historical discharges of organic-rich wastewater from pulp and paper factories have resulted in formation of large fiberbanks on the seafloor, which lately have been found to be contaminated with persistent organic pollutants (POPs). LÄS MER

7. 5. Spreading of persistent organic pollutants from fiber bank sediments

   Master-uppsats, SLU/Dept. of Aquatic Sciences and Assessment

   Författare :Lisa Vogel; [2015]
   Nyckelord :persistent organic pollutants; PCB; DDT; HCB; fiber bank; paper and pulp; POM; log Kd; bioaccumulation; pore water concentration; Marenzelleria spp.; Saduria entomon;

   Sammanfattning : Discharge of untreated wastewater from paper and pulp industries have led to large environmental impacts on the coastal sediments in Västernorrland, Sweden. Dissolved fibers caused the formation of large fiber banks and fiber influenced sediment areas, which proved to be highly affected by contamination with persistent organic pollutants (POPs). LÄS MER