Low-income communities are potentially more vulnerable to physical, social and environmental hazards than wealthier communities. The lack of services associated with these communities (such as water supply, sanitation facilities and electrification) has increased the exposure of households to health hazards. These households also lack the coping mechanisms and resources to deal with the stress that these hazards impose on them. This study is concerned with the potential health hazards imposed from indoor air pollution. Traditional health risk assessments are used to determine the level of risk to human health from a variety of chemical or biological hazards. What these assessments do not include however, is a measure of the vulnerability of the household. The aim of this study therefore, was to develop a methodology for generating a vulnerability index for the inclusion of factors underlying urban poverty and vulnerability into a risk assessment of indoor air pollution. The approach adopted in this study followed an iterative and inductive pathway. Theories on risk assessment and urban vulnerability were explored in order to understand the manner in which risk to human health is assessed and compounded by vulnerability. Secondary data sources as well as a household survey provided information that aided the selection of a number of vulnerability indicators. These indicators were chosen as measures of vulnerability specifically for low-income households in South African settlements. The findings of the research show that there are a number of factors or issues which underlie vulnerability. The issues are related to demographics, livelihoods, physical exposures, externalities, services and general health. This study used a four-tiered selection approach to sift through the issues of vulnerability and to transform the key issues into a set of vulnerability indicators which make up the vulnerability index. / Thesis (M.Sc.)-University of Natal, Durban, 2003.

This thesis provides an overview of the history of urbanisation in South Africa) showing how the resultant fragmented) sprawling spatial form serves to degrade the environment as well as aggravate the plight of the poor. It is argued that science has played a significant role in affecting the way in which planning interacts with the environment. Science has allowed for the domination over) and the manipulation of the natural environment. The popularity of positivism has served to entrench a dualism between the natural world and people - resulting in both entities being planned for separately. This control over the ' natural environment is most apparent in cities. In an attempt to alleviate the marginalisation and domination of the natural environment) a number of radical approaches towards the environment have gained popularity internationally) including ecofeminism and ecosocialism. It is argued however) that these radical approaches are inappropriate within a South African context) as they serve to politicise the environment) and are in fact inherently reductionistic and dualistic. This thesis suggests that sustainable development is an appropriate paradigm to bridge this duality) as it addresses the long term needs of people and the natural environment. A sustainable development approach for cities takes its lead from Local Agenda 21) which encourages cities throughout the world to develop strategies to ensure an improved quality of life for all their inhabitants) without depleting the natural resource base upon which city functioning depends. South Africa is currently undergoing a period of dramatic political and social change. Associated with this transition) new ways of reconstructing cities to increase the quality of life of all South Africans) especially the poor and marginalised are envisaged. This would necessarily include increasing the efficiency of the present urban form. The redevelopment of Cato Manor is used as a case study) illustrating its potential to contribute towards a model for sustainable urban development. This is done through a critique of the planning process as it is unfolding presently. The period of transition provides scope for the introduction of a sustainable development model within planning for low income communities in the Cato Manor project. However) the development has been plagued with 1I1 a number of challenges including institutional, legal, financial, environmental, capacity and public awareness. These challenges have thus far hindered the successful introduction of a sustainable development model, as the development does not appear to meet a primary objective of sustainable development - alleviating poverty and increasing the quality of life of all people, without imposing unsustainable demands on the natural environment. / Thesis (M.Sc.)-University of Natal, 1995.

No abstract available. / Thesis (Ph.D)-University of Natal, 1989.