Large quantities of chemicals are used in all areas of society. The chemicals can be toxic and dangerous for the environment if used incorrectly. To protect people and the environment from dangerous chemicals, a good control of them and an active work to phase out hazardous substances in all areas where chemicals are present, are needed. Banverket and Vägverket handle in production a wide range of chemical products. Many of the products are dangerous to the environment, for those who work with them and to others who may come into contact with them.

Disinfection methods for drinking-water produced at the two water works of Stockholm Water Co are compared in this study. Three different nethods are compared; disinfection with chlorine gas, disinfection with sodium hypochlorite and disinfection with UV-light and monochloramine. The method used is Life cycle assessment, LCA. LCA is defined as the compilation and evaluation of the inputs, outputs and potential environmental impact of a product system shroughout its life cycle. The environmental burden is compared for the three different disinfection methods.

A wastewater treatment plant has the task to refine the wastewater from substances that should not be released into the environment. The decomposition process can, in a simple way, be described as follows: micro-organisms breathe oxygen and eat unwanted substances. The environment in which the micro-organism lives is known as sludge and the correct amount of oxygen available in the sludge is important for the decomposition to be effective. The oxygenation of the sludge alone stands for about 30% of the plant?s energy consumption.

The purpose of this literature review was to describe the paths of exposure and accumulation of organic pollutants into the tissues of farm animals. Organic pollutants can be spread in the environment by air and rainwater. Farm animals can be exposed to these pollutants for example by eating soil or contaminated plants. Many of the pollutants can then accumulate in the fat tissues of the body because of their lipophilic character. Brominated flame retardants and perfluorolated compounds are both pollutants of current interest.

SammanfattningMykotoxiner är sekundära metaboliter som kan bildas av vissa mögelsvampar. Idisslare har generellt ett högre skydd mot mykotoxiner än vad enkelmagade djur har då våmmens mikroorganismer kan fungera som ett extra skydd mot mykotoxikos. Trichotecenerna deoxynivalenol och T-2 toxin bryts ner till de-epoxymetaboliter i våmmen genom att dess toxiska epoxyring spjälkas bort. Deoxynivalenol metaboliseras helt eller delvis av våmmens mikroorganismer, medan T-2 toxinets nedbrytningskapacitet inte är lika hög. Aflatoxin B1 har en låg nedbrytbarhet, och inga metaboliter har kunnat detekteras i våmmen.

A research of 14 toxic affected study sites in Sweden showed a significant increased proportion of deformed diatoms. The six metal polluted study sites in the region of Dalarna showed a 4, 2% average of deformed Fragilaria (deformed diatoms reference sites, 0, 1%). The results also indicate a significant increased proportions of deformed diatoms in the eight pesticide polluted sites in the south and middle of Sweden, compared to the reference sites, howsoever the toxic content was low. The results indicate that there are no lager differences in neither teratological forms nor variations that segregate metal polluted and pesticide polluted shells. One of the reasons may be that both heavy metals and pesticides can affect the development of the diatom shell..

The environmental work in Sweden has developed a lot over the past fifty years. Today, most companies have some kind of environmental work. Environmental activities are regulated by the Environmental Code, which applies in parallel with other laws. This report is an environmental review for Bräcke Diakoni. The report aims to find out how much environmental impact Bräcke Diakoni has.

This study deals with work environment from a legal perspective. The study includes legislative history, legislation today and one empirical study. The legislation that concerns work environment (health and safety) in Sweden today is found in the Swedish Work Environment Act (WEA), the Work Environment Ordinance (WEO), Provisions issued by the Work Environment Authority, related legislations and also collective agreements. The WEA, passed by the parliament in 1977, came into force on the 1st of July 1978 and it defines the framework for Provisions issued by the Work Environment Authority, which is an authority superintended by the Swedish government. These Provisions contain more detailed stipulations and obligations with reference to the working environment.

Work environment has been an important part of the Swedish working life for a long time and with the help of the Working Environment Law the work environment is mandatory. The purpose of this study was to gain a deeper insight into how the system of middle managers systematic work environment looks like. The question was: How do six middle managers perceive and deal with systematic work environment? A qualitative study was conducted with six middle managers from a global company. During the analysis, there were three main themes to be recognized (cooperation and support facilitates the work environment, problem with the systematic work and difficulties with staff) and six sub themes.

This study is about the preschool environment. Earlier studies show that preschool environment affect children?s development and learning. This study will exemplify the perspective of active preschool teachers of how they see at preschool play environment. The aim of this study is to bring insight and understanding on how preschool teachers see upon their play environment and the play that occurs.

Bakgrund: Fetma är ett folkhälsoproblem som fortsätter att eskalera världen över. En betydande orsak till detta är den så kallade toxiska miljön vilken medför att människor ständigt exponeras för energität mat och dryck, vilket kan påverka ätbeteendet. Denna studie är viktig att genomföra då det saknas studier som undersöker människors egna upplevelser av miljöstimulis inverkan på ätbeteenden.Syfte:Att undersöka människors upplevelser av att exponeras för ett stort utbud av energirik mat och dryck, hur de upplever att denna exponering påverkar deras och andras ätbeteende samt vilka hälsosamma alternativ de upplever finns i deras närmiljö.Metod:Eftersom det som beskrivs i denna studie är upplevelser av miljöstimuli valdes en explorativ kvalitativ ansats. Som urvalsmetod användes variationsurval för att få en så stor variation som möjligt bland deltagarna. Som datainsamlingsmetod användes halvstrukturerade intervjuer.

In our everyday life we are faced with many choices that have consequences on the environment. One of these is the food we choose to eat since food production has a big impact on the environment. In organic production the aim is to have a natural production process, where environmental impacts are minimized. By choosing organic food it is therefore possible to contribute to a better environment. A large number of meals are served every day in the public sector, which makes it an important player in the consumer sector that could make a major difference for the environment..

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.

This diploma work was performed because the company Sveriges BostadsrättsCentrum, with the abbreviation SBC, had a need to gain insight into how changes in the Work Environment Act and related regulations which took effect January 1, 2009 affecting their work with the work environment. The changes mean that the client may hand over his work environment responsibilities to a contractor and that he has to select so-called building work environment co-ordinators. At SBC they are working as representatives for tenant-owner's association when a construction is about to be carried out. The purpose was to ascertain how changes may affect the work at SBC. The diploma work intends to educate the staff at SBC how work with the work environment would look like if they met the regulatory requirements.

The purpose with this study was to examine which opinions and knowledge the directors have about the physical residential environment's importance on accommodations for people with dementia disease and how they do to create and to maintain a good physical residential environment. The issues have been: Which opinions and knowledge the directors had about the physical residential environment's importance for the people with dementia? How did the managers work in order to create and maintain a good physical residential environment? We had four themes, homelike environment on the accommodations, priorities on the accommodation, care/nursing in the physical residential environment and the manager?s possibility to influence the physical residential environment. The study followed a qualitative method. Five managers were interviewed on four accommodations and the managers were said to work actively with the physical residential environment.