Sökning: "emerging pollutants"

Visar resultat 1 - 5 av 13 uppsatser innehållade orden emerging pollutants.

  1. 1. Per- och polyfluorerade alkylsubstanser (PFAS) i odlade alger för livsmedelskonsumtion

    Kandidat-uppsats, Örebro universitet/Institutionen för naturvetenskap och teknik

    Författare :Nicolaie Kattah; [2022]
    Nyckelord :PFAS; algae; cultivation; consumption; limit value; pollution; sustainability.; PFAS; alger; odling; konsumtion; gränsvärde; förorening; hållbarhet.;

    Sammanfattning : Per- och polyfluorerade alkylsubstanser är framväxande syntetiska föroreningar som är spritt över alla ekosystem. Per- och polyfluorerade alkylsubstanser har fått ökad regulatoriska och allmän uppmärksamhet på grund av deras egenskaper av att vara persistenta, bioackumulerande i trofinnivåer och toxiska. LÄS MER

  3. 2. Effects of plastic pollution on leaf litter decomposition in Swedish freshwater ecosystems : a field study addressing recently and globally emerging pollutants

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

    Författare :Martina Stangl; [2022]
    Nyckelord :Microplastics; Face masks; Ecosystem functioning; Leaf decomposition; Field study;

    Sammanfattning : Plastic pollution is recognized as an increasing environmental problem, but few studies have addressed impacts on ecosystem functions, and very few have been conducted in the field. This study investigated the effects of polypropylene particles derived from disposable face masks on in-situ leaf litter decomposition processes in freshwater ecosystems. LÄS MER

  4. 3. Effect of Ibuprofen on the growth of Pseudokirchneriella subcapitata

    Kandidat-uppsats, Högskolan i Skövde/Institutionen för biovetenskap

    Författare :Mario Flos Berga; [2022]
    Nyckelord :P. subcapitata; toxicity test; contaminants of emerging concern; Ibuprofen;

    Sammanfattning : Pharmaceuticals are an important class of pollutants in aquatic ecosystems. Detected concentration are typically in the range 1 ng/L – 1 μg/L. Traditional wastewater treatment does not provide a complete removal of these contaminants; hence, they may have a negative impact on the environment. LÄS MER

  5. 4. Microplastics in the Gulf of Bothnia, SwedenA comparison between Österfjärden and Örefjärden.

    Kandidat-uppsats, Örebro universitet/Institutionen för naturvetenskap och teknik

    Författare :Emma Overgaard; [2021]
    Nyckelord :IR; Microplastic; pollution; polymer composition; surface water; visual characterization;

    Sammanfattning : Microplastics are emerging pollutants in the marine environment, including a range of polymers modified by varying quantities of additives and sorbed pollutants, differing in size, colour, and shape. This study focuses on characterization and quantification through visual characterization of microplastics >300 μm in surface water and at 5-meter depth in the Gulf of Bothnia. LÄS MER

  7. 5. Indoor and Outdoor Measurements of Particulate Matter with the Low-Cost Optical Sensor OPC-N3

    Kandidat-uppsats, Lunds universitet/Kärnfysik; Lunds universitet/Fysiska institutionen

    Författare :Ellen Grace Soroka; [2020]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : This paper evaluates the low-cost optical sensor OPC-N3 from Alphasense as a suitable scientific instrument for measuring particulate matter levels in air, both outdoors and in- doors. The time-keeping and data-retrieval was additionally improved by connecting the OPC-N3 to an Arduino microcontroller equipped with a real-time clock (RTC) module and an external SD card. LÄS MER