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2003 Uppsatser om Environmental threats - Sida 65 av 134
Lek hos Stinkpadda (Bufo callamita): jämförelse av restaurerade och ickerestaurerade hällkar
The natterjack toad (Bufo calamita) is one of three species of toads living in Sweden. During the last decades declines in population numbers have been detected and are thought to be primarily due to loss of habitat, overgrown breeding ponds and competition from common toad (Bufo bufo) and common frog (Rana temporaria). In 2012 20 ponds in the location of Glommeskallen in Smögen were restored by clearing the ponds from overgrowth. The aim of this study was to investigate if natterjack toads used the restored ponds and if the restoration had made an impact on the natterjack population on the location. Presence of common toad and common frog was recorded, as was the presence of eggs and larvae of any of the three species.
Underlag för en pedagogisk turled i permakulturekobyn Suderbyn
Permaculture is a design system that aims at developing sustainable human settlements and self-maintained agriculture; it may also be used for community planning. The design system of permaculture aims at mimicking a natural ecosystem; this gives the advantage to make use of all the connections and mechanisms that exist in such a system.The purpose of this bachelor thesis was to compile and spread scientific information regarding five different themes within the areas of ecology, environmental science and permaculture. This was achieved through cooperation with the permaculture inspired Ecovillage Suberbyn in southern Gotland. Information about the central parts of a permaculture ecovillage was used as material for a series of signposts that will be located around the ecovillage Suderbyn. The five selected themes were: An overview of permaculture, The forest garden, The pond, Composting and The use of human excrement and urine..
Lokalt klimatarbete på lokal nivå : Från mål till praktisk handling i "Vänerskärgården med Kinnekulle"
The purpose of this study has been to maintain a deeper understanding of how unestablished, professional musicians can get discovered by the music industry by communication, branding and positioning of their brand at social media.We found that fans have a greater impact on unestablished musicians than we previously thought. They have to create an identity for their brand, keep active on social media and engage their fans. Musical artists must maintain an ongoing dialogue to keep their fanbase, preferably with emotions involved. No fans equals minimum attention from the industry. Uniformity and professionalism is also important, because it evokes seriousness.
Sårbarhetskartering av bekämpningsmedelsläckage till grundvattnet : tillämpat på vattenskyddsområdet Ignaberga-Hässleholm
Målsättningen med detta arbete är att ta fram en metod för att kartera och analysera den rumsliga variationen av landskapets sårbarhet för miljögifter, samt att visa hur geografiska informationssystem (GIS) kan underlätta denna rumsliga kartering och analys. Analysen utfördes inom vattenskyddsområdet Ignaberga-Hässleholm i Hässleholms kommun. Först studerades sårbarheten utifrån markens förutsättningar med hjälp av modellen DRASTIC och sedan studerades var de mest mobila bekämpningsmedlen har använts i förhållande till resultaten från DRASTIC..
Strategiskt CSR-arbete i den svenska modebranschen - en studie av fyra företag
The concept Corporate Social Responsibility (CSR) describes a company's social and environmental work. More and more companies have embraced the concept of CSR and for some businesses, it has become equally important to present its efforts within CSR as to present its latest profits.The purpose of this essay is to establish an overall picture of a company's CSR efforts and to discuss the potential conflict between CSR and the aim for profit We investigate how businesses can improve their CSR effort so that it contributes to a positive development for the society while still creating economic value for the company. The study is based on a qualitative study of four Swedish companies in the fashion industry: Kappahl, Gina Tricot, Åhlens and Indiska. The results show that according to the theoretical framework, the four companies do not reach a complete strategic approach to CSR. To achieve this it is necessary for the companies to change their current CSR-activities..
Kartläggning av en svensk flygplats miljöledningssystem
Detta examensarbete är skrivet som en del i programmet industriell organisation och ekonomi, med inriktning logistik och ledning vid Tekniska Högskolan i Jönköping. Rapporten är skriven på uppdrag av Skövde flygplatsbolag AB, som är ett kommunalt flygplatsbolag. Skövde flygplats är belägen ett par mil utanför Skövde centrum. Flygplatsen trafikeras idag mestadels av transportflyg men även enstaka mindre passagerarflyg. Idag är Kinnarps, Volvo Powertrain, Räddningstjänsten och klubbverksamhet deras största aktörer. Syftet med examensarbetet har varit att beskriva Skövde flygplats nuvarande verksamhet, samt att utreda flygplatsens miljöledningssystem (MLS).
Utvärdering av olika sätt att hantera avloppsslam i Värmdö
Important issues for the local authorities are what to do with the sludge produced insewagetreatment plants. The tax for landfill leads to higher costs with 250 SEK/ton. On the 31December 2004 it will be forbidden to landfill sludge.In Sweden the yearly production of sludge is 240 000 tons, counted as DS. The phosphorouscontent is 3 % in sludge. The total yearly production of sludge gives 6000 tons of phosphorous.
Removal efficiency of perfluoroalkyl substances (PFASs) in drinking water : evaluation of granular activated carbon (GAC) and anion exchange (AE) using column tests, and the effect of dissolved organic carbon
Poly- and perfluoroalkyl substances (PFASs) are a group of environmental contaminants that have gained increasing attention due to their potential to bioaccumulate, environmental persistence and potential toxicity. PFASs have been found in surface water, sediment, air, soil, sludge and ice caps globally, as well as in wildlife and humans. Furthermore, PFASs have also been detected in drinking water, leading to raised concerns for human health, since drinking water is one of the most significant sources of PFASs for the general population. Conventional water treatment techniques have shown to be ineffective removing PFASs, highlighting the importance for further research to develop efficient removal techniques.
The aim of this study was to investigate the removal efficiency of PFASs in water using two treatment techniques; granular activated carbon (GAC), type Filtrasorb 400®, and anion exchange (AE), type Purolite A-600. Additionally, the effect of dissolved organic carbon (DOC) on removal efficiency was studied.
Markvattenhalt och temperatur i sandig jordbruksmark vid Ilstorp, centrala Skåne : en mätnings- och modelleringsstudie
Vinderosion på jordbruksmark har länge varit ett välkänt faktum trots att någon utförligare undersökning om dess omfattning och skadeverkan inte tidigare genomförts. Mot bakgrund av detta har därför ett nordeuropeiskt projekt, WEELS (Wind Erosion on European Light Soils), dragits i gång som syftar till kartlägga vinderosionen på sandig jordbruksmark i norra Europa och som man i slutändan hoppas ska kunna resultera i en vinderosionsmodell. Detta har genomförts med SOIL modellen, en matematiskt fysikaliskt baserad modell för simulering av vatten och värmeflöde i en skiktad jordmånsprofil..
Miljö- och naturarbete i förskolan : en studie om hur pedagoger genomför miljö- och naturarbetet i förskolan
Syftet med denna undersökning var att undersöka och beskriva hur arbetet med miljö och natur kan genomföras i förskolan. Undersökningen bygger på kvalitativa semistrukturerade intervjuer med nio stycken pedagoger från fem olika förskolor, i en kommun i Västsverige. Resultatet av undersökningen visar att det finns många olika sätt att arbeta med miljö och natur i förskolan, såväl praktiska som teoretiska. Att arbeta med återvinning, kompostering och samtala om bevarandet av resurser, var några av de aktiviteter som undersökningens pedagoger brukade göra. Det framkom också i undersökningen att det i arbetet med miljö- och natur finns vissa hinder som t.ex.
Assessment of food retail business sustainability : the case of Konsum Värmland
Public concern and the need of responsible way of doing business have brought forward the issue of sustainability at the forefront of discussion in the last decade. Even though, food retailers are playing an important role in the economy, they are exposed for criticism by media and consumers for any socially and environmentally irresponsible business practices because, the potential environmental and social impacts from their operations are significant. These impacts need to be recognized and properly addressed. The main objective of this study was to assess the sustainable business management of a cooperative food retail business in Sweden, known as Konsum Värmland (KV). The necessary data and information on history and status of KV, and its practical activities concerning the implementation of sustainable development programs as well as the motivation and challenges encountered by KV during the implementation were gathered via reviewing different documents, research papers and press releases; interviewing decision makers and other personnel in KV and other researchers from Swedish University of Agricultural University who have investigated KV.
Internationaliseringsprocessen för svensktillverkande företag
The world gets smaller and smaller and goods, services, people and information are nowadays more and more able to freely cross borders. Half of the Swedish GNP consists of export and almost 70 % of that amount is goods. Because of today?s increasing globalization the Swedish companies are now faced with both new opportunities and threats. Companies with goods which are manufactured in Sweden gets challenged by increased competition from cheap goods produced in other countries and companies can no longer afford to entirely focus on the domestic market.
Effekt av sederingsrutin och vikt på höftledsröntgen hos hund
The aim of the study was to investigate whether the sedation method had an effect on the screening result for hip dysplasia (HD). Another aspect considered was if the dog?s weight had an impact on the results. This study was a follow up on the results from an earlier study of sedation routines in Swedish dogs. The breeds included in this study were the same as in the earlier one; German shepherd, Bernese mountain dog, Boxer, Newfoundland, Rottweiler, Saint Bernard, Golden and Labrador Retriever.
Referensvåtmarker för uppföljning av växtnäringsretention i anlagda våtmarker
One of the environmental problems today in seas, lakes and streams is eutrophication. This is often caused by nutrients such as phosphorus (P) and nitrogen (N) that leak from agricultural areas. A measure to partly prevent the nutrient discharge is to construct or restore wetlands.In order to control the efficiency of nutrient reduction of existing wetlands in the county, the administrative board in Västra Götaland wants to find different criterias for reference wetlands. These reference wetlands should represent other wetlands and be used in future evaluations of reduction of nutrients and design of constructed wetlands. According to the administrative board in Västra Götaland the reference wetlands should have a catchment area of about 50 hectare consisting of at least 70 % arable land, to represent wetlands created to remove nutrients.
Marktäckande, lågväxt vegetation på ställverksmark : en biologisk bekämpningsmetod mot ogräs
Unwanted vegetation on the land of electric transforming stations is a problem, in the sense that it contributes to higher fire risks and also constitutes an obstacle for people performing maintenance operations at the station. Such unwanted vegetation is controlled using herbicides and mechanical measures. Since the use of herbicides implies environmental hazards, there is a need to find alternative ways of fighting the unwanted vegetation.
Investigation into suitable plants for ground cover, trials in the greenhouse, trials in the field, soil analyses and compilation of experiences from similar trials are parts of this work. The paper also contains analyses of possible environmental benefits and economical gains. There is also a final discussion of some proposals regarding alternative weed controlling methods.