Sökning: "air sampling"
Visar resultat 1 - 5 av 85 uppsatser innehållade orden air sampling.
1. Air quality around preschools in Gothenburg: an evaluation of measurement methods
Master-uppsats, Göteborgs universitet / Institutionen för biologi och miljövetenskapSammanfattning : 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. LÄS MER
2. Yearly distribution and composition of per- and polyfluoroalkyl substances (PFAS) in Luleå wastewater treatment plant
Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurserSammanfattning : 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. LÄS MER
3. Scaling up social enterprises to tackle environmental problems : A study exploring scale-up challenges, solutions, and opportunities of social enterprises tackling environmental problems
Master-uppsats,Sammanfattning : 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. LÄS MER
4. Deposition av Black carbon i sjöar efter den stora skogsbranden i Västmanland 2014
Magister-uppsats, Lunds universitet/Centrum för miljö- och klimatvetenskap (CEC); Lunds universitet/Miljövetenskaplig utbildningSammanfattning : Black carbon (BC) is produced during incomplete combustion of Biomass and fossil fuels. BC and other carbonaceous pollutants have characteristics that affect the climate, environment, and human health. Historically, BC emissions have been measured and monitored in the atmosphere, and BC emissions to the air are quite well documented. LÄS MER
5. N2 fixation of three legume species in an agroforestry system
Master-uppsats, SLU/Dept. of Soil and EnvironmentSammanfattning : 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. LÄS MER