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Sökning: WFRF:(Mangold Mikael 1982)

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1.
  • Engstrom, E., et al. (författare)
  • Applying spatial regression to evaluate risk factors for microbiological contamination of urban groundwater sources in Juba, South Sudan
  • 2017
  • Ingår i: Hydrogeology Journal. - : Springer. - 1431-2174 .- 1435-0157. ; 25:4, s. 1077-1091
  • Tidskriftsartikel (refereegranskat)abstract
    • This study developed methodology for statistically assessing groundwater contamination mechanisms. It focused on microbial water pollution in low-income regions. Risk factors for faecal contamination of groundwater-fed drinking-water sources were evaluated in a case study in Juba, South Sudan. The study was based on counts of thermotolerant coliforms in water samples from 129 sources, collected by the humanitarian aid organisation M,decins Sans FrontiSres in 2010. The factors included hydrogeological settings, land use and socio-economic characteristics. The results showed that the residuals of a conventional probit regression model had a significant positive spatial autocorrelation (Moran's I = 3.05, I-stat = 9.28); therefore, a spatial model was developed that had better goodness-of-fit to the observations. The most significant factor in this model (p-value 0.005) was the distance from a water source to the nearest Tukul area, an area with informal settlements that lack sanitation services. It is thus recommended that future remediation and monitoring efforts in the city be concentrated in such low-income regions. The spatial model differed from the conventional approach: in contrast with the latter case, lowland topography was not significant at the 5% level, as the p-value was 0.074 in the spatial model and 0.040 in the traditional model. This study showed that statistical risk-factor assessments of groundwater contamination need to consider spatial interactions when the water sources are located close to each other. Future studies might further investigate the cut-off distance that reflects spatial autocorrelation. Particularly, these results advise research on urban groundwater quality.
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2.
  • Bratanova, Boyka, et al. (författare)
  • Restoring drinking water acceptance following a waterborne disease outbreak: the role of trust, risk perception, and communication
  • 2013
  • Ingår i: Journal of Applied Social Psychology. - 0021-9029. ; 43:9, s. 1761-1770
  • Tidskriftsartikel (refereegranskat)abstract
    • Although research shows that acceptance, trust, and risk perception are often related, little is known about the underlying patterns of causality among the three constructs. In the context of a waterborne disease outbreak, we explored via zero-order/partial correlation analysis whether acceptance predicts both trust and risk perception (associationist model), or whether trust influences risk perception and acceptance (causal chain model). The results supported the causal chain model suggesting a causal role for trust. A subsequent path analysis confirmed that the effect of trust on acceptance is fully mediated by risk perception. It also revealed that trust is positively predicted by prior institutional trust and communication with the public. Implications of the findings for response strategies to contamination events are discussed.
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3.
  • Engström, Emma, et al. (författare)
  • Prevalence of microbiological contaminants in groundwater sources and risk factor assessment in Juba, South Sudan
  • 2015
  • Ingår i: Science of the Total Environment. - 0048-9697 .- 1879-1026. ; 515-516, s. 181-187
  • Tidskriftsartikel (refereegranskat)abstract
    • In low-income regions, drinking water is often derived from groundwater sources, which might spread diarrheal disease if they are microbiologically polluted. This study aimed to investigate the occurrence of fecal contamination in 147 improved groundwater sources in Juba, South Sudan and to assess potential contributing risk factors, based on bivariate statistical analysis. Thermotolerant coliforms (TTCs) were detected in 66% of the investigated sources, including 95 boreholes, breaching the health-based recommendations for drinking water. A significant association (p
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4.
  • Hagbert, Pernilla, 1986, et al. (författare)
  • Paradoxes and Possibilities for a ‘Green’ Housing Sector: A Swedish Case
  • 2013
  • Ingår i: Sustainability. - : MDPI AG. - 2071-1050. ; 5:5, s. 2018-2035
  • Tidskriftsartikel (refereegranskat)abstract
    • As global and local visions for sustainable living environments are increasingly supported by policies and concrete practices in construction, the building and housing sector is seeking to mitigate its environmental impact as well as assume a greater social responsibility. The overarching policy objectives set to concretize what a sustainable housing development entails, however, tend to rely on equivocal terminology, allowing a varied interpretation by key industry practitioners. Though in line with an ecological modernization paradigm in policy, the promotion of a market-driven environmentalism in housing faces multiple challenges as varying interests and perspectives collide. Supported by empirical findings of a semi-structured interview study conducted with housing developers in a new ‘green’ urban district in Göteborg, Sweden, theoretical frameworks surrounding the paradoxical path towards a sustainable housing development are presented. Inconsistencies between outspoken ambitions; social dimensions; and the framing of efficiency in new housing are discussed. Possibilities for the housing sector are given in the recognition of new forms of development, where a systemic perspective is required in the alignment between how industry, policy and the market perceives housing development and what is actually sustainable.
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5.
  • Hagbert, Pernilla, 1986, et al. (författare)
  • Reducing water consumption
  • 2012
  • Ingår i: 1st RESPONDER Knowledge Brokerage Event on Sustainable Housing, 28-30 March, 2012, Barcelona, Spain.
  • Konferensbidrag (övrigt vetenskapligt)
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6.
  • Harder, Robin, 1983, et al. (författare)
  • Quantification of Goods Purchases and Waste Generation at the Level of Individual Households
  • 2014
  • Ingår i: Journal of Industrial Ecology. - 1530-9290 .- 1088-1980. ; 18:2, s. 227-241
  • Tidskriftsartikel (refereegranskat)abstract
    • Quantifying differences in resource use and waste generation between individual households and exploring the reasons for the variations observed implies the need for disaggregated data on household activities and related physical flows. The collection of disaggregated data for water use, gas use, electricity use, and mobility has been reported in the literature and is normally achieved through sensors and computational algorithms. This study focuses on collecting disaggregated data for goods consumption and related waste generation at the level of individual households. To this end, two data collection approaches were devised and evaluated: (1) triangulating shopping receipt analysis and waste component analysis and (2) tracking goods consumption and waste generation using a smartphone. A case study on two households demonstrated that it is possible to collect quantitative data on goods consumption and related waste generation on a per unit basis for individual households. The study suggested that the type of data collected can be relevant in a number of different research contexts: eco-feedback; user-centered research; living-lab research; and life cycle impacts of household consumption. The approaches presented in this study are most applicable in the context of user-centered or living-lab research. For the other contexts, alternative data sources (e.g., retailers and producers) may be better suited to data collection on larger samples, though at a lesser level of detail, compared with the two data collection approaches devised and evaluated in this study.
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7.
  • Helgegren, Ida, 1986, et al. (författare)
  • Contextualizing Sustainable Development for Small Scale Water and Sanitation Systems in Cochabamba, Bolivia
  • 2013
  • Ingår i: Urban Environment. ; , s. 217-225
  • Bokkapitel (övrigt vetenskapligt)abstract
    • Water and sanitation are pressing issues for the urban poor in Bolivia where the lack of safe water and sanitation services contributes to urban poverty. This paper defines sustainable development (SD) in relation to small scale water and sanitation systems in the metropolitan area of Cochabamba, Bolivia. A case study on the water and sanitation systems of two housing cooperatives is performed. By involving all the concerned stakeholders this study aims to identify a contextualized definition of SD, which can be used in order to assess and steer the development of small scale water and sanitation systems in the metropolitan area of Cochabamba. The identified definition consists of the following criteria, referred to as key issues: social context, socio-political factors, target group, freshwater resources, economic obstacles, reproducibility, knowledge, management, reliability, water quality and disposal. Three main challenges are identified to have had major influence on the contextualization of the SD concept: which stakeholders that are included, how the differing opinions among the stakeholders are addressed and how active the stakeholders are in the development process.
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8.
  • Mangold, Mikael, 1982, et al. (författare)
  • A review of Swedish residential building stock research
  • 2015
  • Ingår i: International Journal of Environmental Sustainability. - 2325-1085 .- 2325-1077. ; 11:2
  • Tidskriftsartikel (refereegranskat)abstract
    • Energy usage in the Swedish building stock has changed significantly the last 20 years. The target of reducing the Green Houses Gas (GHG) emissions by 40% till 2020 seems reachable through improved energy efficiency and a switch to less GHG emitting heat sources. The goal of GHG neutrality by 2050 will however require further initiatives. This paper is primarily a review of the contemporary Swedish building stock state and research. Different research bodies, such as government research institutes, universities, and companies, have different financing and foci. They present their analyses the built environment differently. This paper creates a structure amongst these actors by dividing them in groups and by identifying topics where there are different positions held by researchers and practitioners in the fields related to building stock. Data from Energy Performance Certificates (EPC) is used to display how energy usage varies depending on building age. This gives an indication on how the building stock is developing and what possibilities there are to reach environmental targets.
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9.
  • Mangold, Mikael, 1982, et al. (författare)
  • Building ownership, renovation investments, and energy performance - A study of multi-family dwellings in Gothenburg
  • 2018
  • Ingår i: Sustainability. - : MDPI. - 2071-1050. ; 10:5
  • Tidskriftsartikel (refereegranskat)abstract
    • The European building stock was renewed at a rapid pace during the period 1950-1975. In many European countries, the building stock from this time needs to be renovated, and there are opportunities to introduce energy efficiency measures in the renovation process. Information availability and increasingly available analysis tools make it possible to assess the impact of policy and regulation. This article describes methods developed for analyzing investments in renovation and energy performance based on building ownership and inhabitant socio-economic information developed for Swedish authorities, to be used for the Swedish national renovations strategy in 2019. This was done by analyzing measured energy usage and renovation investments made during the last 30 years, coupled with building specific official information of buildings and resident area characteristics, for multi-family dwellings in Gothenburg (N = 6319). The statistical analyses show that more costly renovations lead to decreasing energy usage for heating, but buildings that have been renovated during the last decades have a higher energy usage when accounting for current heating system, ownership, and resident socio-economic background. It is appropriate to include an affordability aspect in larger renovation projects since economically disadvantaged groups are over-represented in buildings with poorer energy performance.
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10.
  • Mangold, Mikael, 1982, et al. (författare)
  • Building Ownership, Renovation Investments, and Energy Performance—A Study of Multi-Family Dwellings in Gothenburg
  • 2020
  • Ingår i: Sustainable Built Environment and Urban Growth Management. - 9783039281862 ; , s. 149-164
  • Bokkapitel (övrigt vetenskapligt)abstract
    • The European building stock was renewed at a rapid pace during the period 1950–1975. In many European countries, the building stock from this time needs to be renovated, and there are opportunities to introduce energy efficiency measures in the renovation process. information availability and increasingly available analysis tools make it possible to assess the impact of policy and regulation. This article describes methods developed for analyzing investments in renovation and energy performance based on building ownership and inhabitant socio-economic information developed for Swedish authorities, to be used for the Swedish national renovations strategy in 2019. This was done by analyzing measured energy usage and renovation investments made during the last 30 years, coupled with building specific official information of buildings and resident area characteristics, for multi-family dwellings in Gothenburg (N = 6319). The statistical analyses show that more costly renovations lead to decreasing energy usage for heating, but buildings that have been renovated during the last decades have a higher energy usage when accounting for current heating system, ownership, and resident socio-economic background. It is appropriate to include an affordability aspect in larger renovation projects since economically disadvantaged groups are over-represented in buildings with poorer energy performance.
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