Essays about: "air sampling"

Showing result 1 - 5 of 64 essays containing the words air sampling.

  1. 1. Air quality around preschools in Gothenburg: an evaluation of measurement methods

    University essay from Göteborgs universitet / Institutionen för biologi och miljövetenskap

    Author : Emma Forsmalm; [2023-06-21]
    Keywords : low-cost sensors; passive diffusion samplers; pick-ups and drop-offs; regulatory measurements;

    Abstract : In this study the air quality around four different preschools, chosen to represent different local traffic environments, was measured and the measurement methods used were evaluated. The aim was to compare the information retrieved using different methods, discuss the possible applications of them and finally see if more specific activities, in this case pick-ups and drop-offs, could be seen in the data retrieved. READ MORE

  3. 2. Yearly distribution and composition of per- and polyfluoroalkyl substances (PFAS) in Luleå wastewater treatment plant

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Moa Sjöberg; [2023]
    Keywords : PFAS; WWTP; Wastewater treatment; Consumer products; Precursors;

    Abstract : PFAS (per- and polyfluoroalkyl substances) are a large group of substances that are used in a large variety of products because of their unique water and dirt repellent properties. The substances are extremely persistent and can spread over large distances in groundwater, surface water, and in the air, which makes them an environmental and a health concern. READ MORE

  4. 3. Scaling up social enterprises to tackle environmental problems : A study exploring scale-up challenges, solutions, and opportunities of social enterprises tackling environmental problems

    University essay from

    Author : Karel Svoboda; Ahmed Naqvi; [2023]
    Keywords : social entrepreneurship; social enterprise; scaling up; environmental problems; scale up challenges; scale up solutions; scale up opportunities;

    Abstract : AbstractBackground: Among the biggest threats to mankind are various environmental problems which have been mainly triggered by human interference with the planet. There have been various ineffective efforts to mitigate these detrimental effects. READ MORE

  5. 4. N2 fixation of three legume species in an agroforestry system

    University essay from SLU/Dept. of Soil and Environment

    Author : Hsiang-Ju Fan; [2023]
    Keywords : nitrogen; dinitrogen fixation; legumes; groundnut; stylo; pinto peanut; understorey crop;

    Abstract : Due to the strong soil erosion caused by agricultural activities and sloping landscape, agroforestry has been introduced as a potentially sustainable cropping practice in the mountainous NW Vietnam. Using legumes as understorey crops in these systems has a potential to limit erosion and smother weeds, as well as provide additional nitrogen (N) to the system. READ MORE

  6. 5. Mikroplaster i damm från ridunderlag - pilotstudie

    University essay from SLU/Dept. of Anatomy, Physiology and Biochemistry

    Author : Niklas Nilsson; [2023]
    Keywords : fibersand; underlag; häst; nedbrytning;

    Abstract : Ridsporten är en av de största ungdomsidrotterna inom Sverige. År 2018 beräknades det att cirka 5 miljoner ridtimmar genomförs på landets ridskolor årligen. På grund av Sveriges klimat spenderas mycket av denna tid inom ridhus. READ MORE