Sökning: "Groundwater"

Visar resultat 21 - 25 av 358 avhandlingar innehållade ordet Groundwater.

  1. 21. Groundwater Vulnerability Assessment to pollution in Different Soil and Rock Materials

    Författare :Twana Abdullah; Nadhir Al-Ansari; Sven Knutsson; Jan Laue; Sabbar Alqaisi; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Groundwater; Vulnerability; DRASTIC; VLDA; Modification; Soil Mechanics; Geoteknik;

    Sammanfattning : The augmentation of human population regularly corresponds with change in the land cover, including expansion of urban areas, which imposes increasing the available amount of domestic and drinking water. The study area, Halabja-Saidsadiq Basin, is situated in the Northeast of Iraq and is one of the major groundwater sources of the region. LÄS MER

  3. 22. Microbial ecology in deep granitic groundwater - activity and impact of viruses

    Författare :Hallgerd Eydal; Göteborgs universitet; []
    Nyckelord :ATP; Desulfovibrio; groundwater; bacteriophage; Podoviridae; sulphate-reducing bacteria; viral ecology;

    Sammanfattning : The deep subsurface environments in granitic rock can be studied and sampled at the Äspö hard rock laboratory (HRL) close to Oskarshamn in Sweden. Here, the groundwater is anaerobic and total counts give numbers of 104 to 106 cells mL-1. However, these measurements do not reveal if the cells are active and alive. LÄS MER

  4. 23. On the scope and assessment of pesticides in groundwater in Skåne, Sweden

    Författare :Maria Åkesson; Kvartärgeologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; groundwater; pesticides; Sweden; Skåne; environmental tracers;

    Sammanfattning : Pesticides are known to occur in groundwater worldwide. However, long-term pollution concerns and cause-effect relationships for specific regions remain limited. LÄS MER

  5. 24. Groundwater occurrence and risk of pollution in a mountain watershed of Nicaragua

    Författare :Alfredo Mendoza; Teknisk geologi; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; teknisk geologi; electrical resistivity; surface water; springs; Nicaragua; Hydrogeology; groundwater; teknisk geografi; geographical and geological engineering; Hydrogeologi;

    Sammanfattning : Hydrogeological and geophysical methods were applied in the Río Artiguas watershed, a mountain basin located in central Nicaragua. This area is under environmental stress from anthropogenic activities like gold mining using mercury and waste disposal into the streams. LÄS MER

  7. 25. EstimatingChloride concentration in surface water and groundwater duet to deicing salt application

    Författare :Eva-Lotta Thunqvist; KTH; []
    Nyckelord :road; deicing salt; monitoring; chloride; catchment area; river basin; simulation; GIS; groundwater; surface water;

    Sammanfattning : A road in operation along with its traffic can pose aserious pollutant threat to groundwater and surface water inits vicinity. Examples of pollutants are metals from thecorrosion of vehicles, rails and poles and the wear of roadsurfaces and tyres; hydrocarbons from the wear of roadsurfaces, tyres, exhausts, oils; sodium chloride from roadsalt; and hazardous goods discharged in accidents. LÄS MER