Sökning: "River Pollution"

Visar resultat 1 - 5 av 95 uppsatser innehållade orden River Pollution.

  1. 1. Microplastics in Scanian wetlands : Sege river & Kävlinge river

    Kandidat-uppsats, Malmö universitet/Institutionen för Urbana Studier (US)

    Författare :Ludvig Stoltz; Pernilla Leijon; [2023]
    Nyckelord :plastic pollution; wetlands; microplastics; Scania; density separation; plastföroreningar; våtmarker; mikroplaster; Skåne; flotteringsmetod;

    Sammanfattning : It is estimated that 75 million tons of plastics waste is currently in the ocean and expects to increase in line with plastic consumption. Plastic items in natural or aquatic environments are fragmented into smaller pieces called microplastics. Microplastics can enter rivers and lakes through sewage water to end up in wetlands where they sediment. LÄS MER

  3. 2. TRACKING WASTEWATER EMISSIONS IN RIVERS ENTERING GULF OF BOTHNIA COAST

    Master-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :Helen Mkandawire; [2023]
    Nyckelord :Nutrients inputs; wastewater; coastal waters; Gulf of Bothnia; wastewater emissions; nutrient transportation; marine water; nutrient loading; eutrophication.;

    Sammanfattning : The Gulf of Bothnia consists of two sub-basins in the northern Baltic Sea: the Bothnian Sea (salinity 4-5‰) and Bothnian Bay (salinity 2-3‰). Changing nutrient concentrations and signs of eutrophication has recently been observed in the Gulf of Bothnia. LÄS MER

  4. 3. Modelling the risk of rainfall events leading to momentary pollution levels exceeding maximum allowed concentrations - A Swedish case study of urban runoff in the Fyris river

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Tove Gannholm Johansson; [2022]
    Nyckelord :urban runoff; flow; rain event; pollution concentration; EQS; MAC-EQS; dagvatten; flöde; regntillfälle; föroreningskoncentration; MKN; MAC-MKN;

    Sammanfattning : The purpose of this study was (1) to study the proportion (X) of the flow in a watercourse that consists of urban runoff during a rain event and (2) to evaluate the risk that a few chosen pollutants, transported by urban runoff, exceed the maximum allowed concentration in the watercourse according to the environmental quality standards (MAC-EQS). The Fyris river in Uppsala, Sweden, was selected as a case study. LÄS MER

  5. 4. Mikroplast i vattenavsatta sediment

    Kandidat-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Björn Lycke; [2022]
    Nyckelord :Andong salt marsh; microplastics; MPs; trends; United Kingdom; Arctic; Tisza; Thames; Elbe; India; primary microplastics; secondary microplastics; PAH; polychlorinated biphenyls; toxic; poison; Earth and Environmental Sciences;

    Sammanfattning : Microplastics (MPs) are a major pollution concern since the start of the mass produc-tion of plastics in the 1950s. MPs form A) when plastics are produced intentionally to be part of beauty products and B) when plastics are broken down into smaller particles by sunlight, wind, and rain. LÄS MER

  7. 5. Complexity of improvement : a sustainability analysis of the park along Riachuelo river connected to marginalized areas in Buenos Aires

    Kandidat-uppsats, SLU/Dept. of Urban and Rural Development

    Författare :Anna Jogefalk; Cassandra W. Kallifatides; [2022]
    Nyckelord :Landscape architecture; urban planning; informal settlement; water pollution; sustainability; Riachuelo river; Buenos Aries; Argentina;

    Sammanfattning : The Riachuelo river in Buenos Aires was considered one of the most polluted watersheds in the world, where industries, sewers and illegal dumping have contaminated the river for over 200 years. Over 8 million people live in the Matanza-Riachuelo Basin, many of which live in informal settlements without official waste management, sanitation- or water systems. LÄS MER