Sökresultat

Polybromerade difenyletrar (PBDE) och hexabromcyklododekan (HBCDD) är bromerade flamskyddsmedel som har använts i stor utstäckning i olika produkter under lång tid. Dessa föreningar är svårnedbrytbara och fettlösliga vilket innebär att de kan lagras länge i fettvävnaden. Både kemin och egenskaperna hos PBDE og HBCDD liknar det kända miljögiftet PCB, vilket gör at det är intressant att se närmare pPolybrominated diphenyl ethers (PBDE) and hexabromocyclododecane (HBCDD) are brominated flame retardants. These compounds are lipophilic, persistent and have been shown to bioaccumulate. The Baltic grey seal (Halichoerus grypus) and the Eurasian otter (Lutra lutra) are top predators and especially exposed to high levels of lipophilic pollutant in their diet due to biomagnification. In the current

Tillgång och Effektfrågan – Biogasens Roll i det Gröna Norrbotten Allt fler nyfikna ögon riktas mot Norrland i takt med att den nordligaste landsänden ångar på framåt i utvecklingen mot fossilfria industrier; kommande år planeras miljardinvesteringar i fossilfria tekniker i region Norrbotten, en satsning som kallas den gröna omställningen. Men för att kunna förse etableringarna och samhället med

Climate change is one of the most significant challenges that building sector is confronting. For example, Climate change and associated extreme events are posing a significant challenge for the building sector. Buildings should be prepared to withstand the climate changes and extreme weather that will happen in the future. Designing buildings based solely on past or average weather conditions, wh

Streamflow analysis helps us understand the availability of water resources in a region or a river. Accurate and timely streamflow monitoring is essential to improve our understanding of the hydrological cycle. Streamflow information is also necessary for many applications, such as irrigation planning, watershed management, hydropower products, flood control, and integrated water resources managem

As humans, we experience many spaces/ borders throughout our life flow. The borders of countries, the houses we live in, the borders of a playground, or the borders between two people. Sometimes we shape the borders, sometimes the borders shape us. However, irrespective of the circumstances, these borders exert discernible influences on the trajectory of our life flow. Each of our border experienc

This thesis is designed as exploratory research, with the aim of studying the relatively underexplored and poorly understood theory-practice gap in small-medium enterprises transition from sustainability ideal to practice. While existing literature has extensively addressed theoretical implications, scant attention has been paid to the lived experiences of SMEs, particularly within the context of

Literature reviews from different countries show that the difference between the calculated and measured energy use of the building, often known as “energy performance gap”, can be as high as 100-200%. Knowing the size of the building energy performance gap, if it exists, along with its underlying causes will enable professionals to make more informed assumptions and produce better predictions. As

Biologisk mångfald, varför ska vi bry oss? I nyheter och media blir vi alltmer uppmärksammade på begreppet ’biologisk mångfald’ som ofta presenteras med en negativ klang kopplad till förlust av naturmiljöer. Naturen som utgör grunden för mänsklig välfärd håller på att försvinna, bland annat på grund av mänskliga aktiviteter som urbanisering och moderna jord- och skogsbruksmetoder. Med den ökade urSpending time outdoors during childhood can improve learning, promote pro- environmental behavior, and improve physical and mental health. However, most of our everyday lives are spent indoors and thus a disassociation from nature is created. Paradoxically, a positive relationship between humans and nature is vital for its preservation, and our survival. Through outdoor education in elementary sch

Vatten, en väsentlig beståndsdel av livet, riskerar i allt högre grad att förändras negativt av olika problem, inklusive klimatförändringar, vilket påverkar dess kvalitet. En av förändringarna i vattenkvaliteten är brunifiering, vilket innebär vatten med en brunare färg. En gulbrun färg på vatten i en sjö eller på en vattenyta kan störa behandlingsprocessen i vattenverk och minska vattnets estetisWater, an essential element of life, is recently impacted by several issues, including climate change, affecting its quality. One of the changes in water quality is brownification, which results in water with a browner color. This yellow-brown color of water in a lake or any water surface can disrupt the treatment process and the aesthetics of the water body, thus increasing costs in the long run.