Essays about: "water quality in rivers"

Showing result 11 - 15 of 60 essays containing the words water quality in rivers.

  1. 11. Modeling the microbial fate and transport in rivers of South Africa

    University essay from Uppsala universitet/Luft-, vatten- och landskapslära

    Author : Stina Perman; [2021]
    Keywords : Water quality modelling; HYPE; waterborne pathogen transport; microorganism; E. coli; Vattenkvalitetsmodellering; HYPE; vattenburna patogener; mikroorganism; E. coli;

    Abstract : In recent years, surface water used for domestic, industrial, and irrigation purposes in South Africa has deteriorated due to inadequate wastewater treatment, urban and agricultural runoff, and rural settlements with deficient sanitation. Access to safe drinking water and sanitation is a basic human right, and if waterborne pathogens are present in the water environment, they compose a human health risk. READ MORE

  3. 12. Assessment of Groundwater Flow to Lake Bolmen

    University essay from Lunds universitet/Väg- och vattenbyggnad (CI); Lunds universitet/Teknisk geologi

    Author : Massimiliano Favaro; [2021]
    Keywords : Groundwater; modelling; MODFLOW; GMS; hydrogeology; Technology and Engineering;

    Abstract : This work reports the research and findings concerning the processes of groundwater flow and distribution to lake Bolmen in the Småland region, Sweden. The watershed of Bolmen is of high interest since it provides water for drinking and energy purposes, representing a resource of notable importance for the society of southern Sweden. READ MORE

  4. 13. Influence of land cover changes on organic carbon and organic nitrogen concentrations in Swedish rivers

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Julia Iwan; [2021]
    Keywords : Total Organic Carbon TOC ; Total Organic Nitrogen TON ; Land Cover Change; Sweden; WaterBase; Earth and Environmental Sciences;

    Abstract : There is increasing pressure on freshwater systems due to excessive nutrient loading by anthropogenic sources. In Sweden, freshwaters have become browner due to increasing exports of organic matter from soils into streams, rivers, and lakes. READ MORE

  5. 14. Responses in river water quality during summers with extreme weather periods in Europe

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Felicia Claeson; [2021]
    Keywords : water quality; rivers; Europe; extremeweather periods; drought; heatwave; floods; dissolved oxygen; nitrate; chlorophyll-a; phosphate; Earth and Environmental Sciences;

    Abstract : Europe has experienced several climate extremes during the past decades. These extreme events have increased in number and intensity and are projected to further intensify. Previous studies show that heatwaves, drought, and flood can have an impact on water quality in several ways. READ MORE

  6. 15. Traits of peat- and upland-derived stream dissolved organic carbon in the permafrost region around Abisko, northern Sweden

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Nora Kainz; [2021]
    Keywords : physical geography; ecosystem analysis; permafrost degradation; DOC; DOC concentration; stable isotope carbon signature; DOC quality; DOC degradation; Atmospheric Sciences and Biogeochemical Cycles; Earth and Environmental Sciences;

    Abstract : Climate change-induced thawing of permafrost mobilizes previously frozen carbon of high potential reactivity, thereby, fuelling microbiological production of greenhouse gases. For this work, an analysis of the quantity, quality, and bioreactivity of DOC in streams from the Stordalen discontinuous permafrost catchment was carried out with stream water samples during the relatively warm summer of 2018. READ MORE