D.Phil. / Water quality management in South Africa changed drastically over the last 20 years, from focussing on effluent control to managing the water resource itself. This resulted in the promulgation of the National Water Act (Act 36 of 1998) which introduced amongst others the classification of water resources and the Reserve. The implementation of the Act is currently in process, and this requires the development of a number of "tools". One such a need is to develop a protocol to set water quality objectives for water resources that takes cognisance of both the classification and the Reserve. The move to manage water resources has also taken place in other countries such as the United Kingdom, the United States of America, The Netherlands and Australia. However, most of these countries do not have the same circumstances or the same approach to water quality management as South Africa. In most cases those countries have adopted single value water quality objectives that lead to an on/off assessment of the success of management actions that does not take full cognisance of the natural variability of water quality such as is experienced in South Africa. Water quality is not static and the effect on a user is a function of dose and exposure. In most cases users can recover from short term exposures to undesirable conditions, as long as these effects are still chronic and not acute. Water quality can therefore not be assessed by making use of a single value, but must be based on a description of the central tendency as well as extreme values. This assessment (ideal, acceptable, tolerable, unacceptable) of water quality should also be linked to management actions so that managers of water resources know where to focus the limited resources at their disposal. In this thesis a protocol is developed that can be used to determine water quality objectives that take into account the class of the water resource, as well as the Reserve. Together with this an assessment system is offered that allows managers to prioritise their actions. The protocol was applied to the Jukskei River Catchment, using data that was collected over a six year period. The protocol was found to be robust and yielded water quality objectives that can be used to focus attention on the most pressing problems. / Prof. G.J. Steyn Dr. H. H. du Preez

The focus of the study is to explore Geographic patterns and Disasters Management in the context of Alexandra Township situated in the Johannesburg Metro. The research evaluates if the Disaster Management Unit in Johannesburg municipality is prepared in terms of policies, community campaigns on flood disasters as well as forming organizations that will assist in times of disaster. It also refers to other South African townships with regard to where most affected townships are located, how the community is affected and how the local government responds. Disaster management infers preparedness for disaster; therefore, measures of preparation from the local government need to be in place to reduce extreme losses, pro-active policies should be in place to guide officials on how to manage disasters affecting their areas. The South African local government as the third sphere of government is closest to the people and mostly responsible for the community’s wellbeing. It is for this reason that local governments should have a strategy on how to deal with disaster. Having experienced natural disaster incidents, most countries in the world have been compelled to develop legislations, disaster management and mitigation plans that guide them on how to prevent and respond to disasters. In view of a several unimagined disaster incidents in South Africa, the researcher maintains that the concept and practice of disaster management is rather new in South Africa, and many local governments do not have well-informed strategies to manage natural disasters. Unlimited rain caused by climate change, the position of residence and overpopulation can be major attributes to disasters hazards. Floods can easily flow into residential dwellings and destroy the property, not only that, but it can also result in the loss of lives and enhance the spread of diseases. It becomes more of tragedy as most people living in these areas are poor and have all their belongings in the same place which makes them even more vulnerable to disaster. The location of Stjwetla settlement along the Alexandra Township riverbanks becomes relevant at this point in case. The residents of Stjwetla are exposed to flood threats, they are very much aware of the risk associated with the low-lying geographical patterns, overpopulation and the riverbanks. However, they still occupy the disaster prone sites because they cannot afford elsewhere. Stjwetla is an illegal settlement where no one pays rent; there is a serious lack of basic municipal services such as water and electricity in the area. The residents claim to have arrived in this area simply because Johannesburg seems to offer informal job opportunities; therefore, they anticipate good opportunities in terms of employment. Most of them are from Limpopo province and have more than twenty years residing in Stjwetla, and are still unemployed. The community has formed rescue groups that help in times of regular disasters such as floods and fire. The rescue groups also mediate between the community and the northern Johannesburg municipal Disaster and Emergency Unit. The Disaster and Emergency Unit have formed good relations with the community leaders for support and emergency response. Other organizations, for instance Red Cross Society make regular input, by offering food and clothes to the people affected. Red Cross Society and other organizations work together with the local government to help Stjwetla residents deal better with disaster effects. However, the residents feel that other government departments, such as social development, health and housing must assist as well. Residents are of an idea that the disaster management unit alone cannot conquer the disaster risk in Stjwetla but social development should help with psychological therapy while health department should intervene to reduce long-term effects of injuries. / M, Development and Management, Public Management and Administration, North-West University, Vaal Triangle Campus, 2012

The focus of the study is to explore Geographic patterns and Disasters Management in the context of Alexandra Township situated in the Johannesburg Metro. The research evaluates if the Disaster Management Unit in Johannesburg municipality is prepared in terms of policies, community campaigns on flood disasters as well as forming organizations that will assist in times of disaster. It also refers to other South African townships with regard to where most affected townships are located, how the community is affected and how the local government responds. Disaster management infers preparedness for disaster; therefore, measures of preparation from the local government need to be in place to reduce extreme losses, pro-active policies should be in place to guide officials on how to manage disasters affecting their areas. The South African local government as the third sphere of government is closest to the people and mostly responsible for the community’s wellbeing. It is for this reason that local governments should have a strategy on how to deal with disaster. Having experienced natural disaster incidents, most countries in the world have been compelled to develop legislations, disaster management and mitigation plans that guide them on how to prevent and respond to disasters. In view of a several unimagined disaster incidents in South Africa, the researcher maintains that the concept and practice of disaster management is rather new in South Africa, and many local governments do not have well-informed strategies to manage natural disasters. Unlimited rain caused by climate change, the position of residence and overpopulation can be major attributes to disasters hazards. Floods can easily flow into residential dwellings and destroy the property, not only that, but it can also result in the loss of lives and enhance the spread of diseases. It becomes more of tragedy as most people living in these areas are poor and have all their belongings in the same place which makes them even more vulnerable to disaster. The location of Stjwetla settlement along the Alexandra Township riverbanks becomes relevant at this point in case. The residents of Stjwetla are exposed to flood threats, they are very much aware of the risk associated with the low-lying geographical patterns, overpopulation and the riverbanks. However, they still occupy the disaster prone sites because they cannot afford elsewhere. Stjwetla is an illegal settlement where no one pays rent; there is a serious lack of basic municipal services such as water and electricity in the area. The residents claim to have arrived in this area simply because Johannesburg seems to offer informal job opportunities; therefore, they anticipate good opportunities in terms of employment. Most of them are from Limpopo province and have more than twenty years residing in Stjwetla, and are still unemployed. The community has formed rescue groups that help in times of regular disasters such as floods and fire. The rescue groups also mediate between the community and the northern Johannesburg municipal Disaster and Emergency Unit. The Disaster and Emergency Unit have formed good relations with the community leaders for support and emergency response. Other organizations, for instance Red Cross Society make regular input, by offering food and clothes to the people affected. Red Cross Society and other organizations work together with the local government to help Stjwetla residents deal better with disaster effects. However, the residents feel that other government departments, such as social development, health and housing must assist as well. Residents are of an idea that the disaster management unit alone cannot conquer the disaster risk in Stjwetla but social development should help with psychological therapy while health department should intervene to reduce long-term effects of injuries. / M, Development and Management, Public Management and Administration, North-West University, Vaal Triangle Campus, 2012

M.Sc. (Botany) / Eight sampling points were selected on the Jukskei River so that the impact of inflows from various localities on the quality of the river water could be determined. Samples were taken every two weeks from the 4th April 1983 to 19th March 1984. The temperature, conductivity, dissolved oxygen and pH of the water were determined on site. Determinations of total phosphorus (as p-po1-), nitrate (NO), chloride (C11 and chlorophyll a were done. After filtration the water of each sample was inoculated with Euglena gracilis and incubated for four days under controlled conditions after which the Euglena chlorophyll-content, primary productivity and biological growth potential were measured...

Environmental Education is a foundation in strengthening learners and community awareness in all environmental issues, including water pollution-related diseases. This study aimed at investigating the level of environmental education awareness on water pollution-related diseases by learners who live in the informal settlement. And lastly, if possible and feasible, to propose solutions to the perceived water pollution-related diseases found in this informal settlement adjacent to the Jukskei river in Alexandra Township, Johannesburg. The research focused on the introduction of the dissertation in Chapter 1 Theoretical foundations of the research in Chapter 2 Research methodology in Chapter 3 Data analysis, interpretation and discussion in Chapter 4 Conclusions and recommendations in Chapter 5 The study provided various definitions of environment, Environmental Education, The goal, Aims & Objective, Classification & Outcomes, Environmental literacy; water pollution-related diseases, the integration of Environmental education in the RNCS & water pollution-related diseases awareness; Education for Sustainable Development; and the relationship between the development of informal settlement and water pollution related diseases. The outcomes of the investigation indicated that the level of environmental education awareness on water pollution –related diseases by learners at the informal settlement is less at primary level and partially increases at the high schools. In order to increase learners’ awareness on water pollution-related diseases across the curricula there should be an adequate integration of Environmental Education in the RNCS. / Educational Studies / M.Ed. (Environmental Education)

Environmental Education is a foundation in strengthening learners and community awareness in all environmental issues, including water pollution-related diseases. This study aimed at investigating the level of environmental education awareness on water pollution-related diseases by learners who live in the informal settlement. And lastly, if possible and feasible, to propose solutions to the perceived water pollution-related diseases found in this informal settlement adjacent to the Jukskei river in Alexandra Township, Johannesburg. The research focused on the introduction of the dissertation in Chapter 1 Theoretical foundations of the research in Chapter 2 Research methodology in Chapter 3 Data analysis, interpretation and discussion in Chapter 4 Conclusions and recommendations in Chapter 5 The study provided various definitions of environment, Environmental Education, The goal, Aims & Objective, Classification & Outcomes, Environmental literacy; water pollution-related diseases, the integration of Environmental education in the RNCS & water pollution-related diseases awareness; Education for Sustainable Development; and the relationship between the development of informal settlement and water pollution related diseases. The outcomes of the investigation indicated that the level of environmental education awareness on water pollution –related diseases by learners at the informal settlement is less at primary level and partially increases at the high schools. In order to increase learners’ awareness on water pollution-related diseases across the curricula there should be an adequate integration of Environmental Education in the RNCS. / Educational Studies / M.Ed. (Environmental Education)

M. Tech. (Biotechnology) Vaal University of Technology / One of the major problems encountered in qualitative and quantitative determination of residual pesticides by gas chromatography is the matrix effects. Matrix components have a considerable effect on the way analysis is conducted and the quality of results obtained, introducing problems such as inaccurate quantification, low analyte delectability and reporting of false positive or even false negative results. It was aimed to develop and validate a suitable method for counteracting the matrix effects so as to improve the detection and quantification of selected organochlorine pesticide residues from real water samples. The real water samples used were sampled from three points along the Jukskei River catchment area in Gauteng, South Africa for a period of 7 months from January to July 201 0 so as to create a representative sample. An automated solid phase extraction (SPE) method coupled to Gas ChromatographyMass Spectrometry (GC-MS) method for the analysis of 20 selected organochlorine pesticides was developed and validated for the purposes of studying the matrix effects. The analytical method showed a significant degree of validity when tested against parameters such as linearity, repeatability and sensitivity. Endosulphan beta, 4,4' Dichlorodiphenyldichloroethane, and Heptachlor-epoxide had the broadest linear calibration ranges of 1 ppm- 0.0156 ppm. Benzene hexachloride (BHC) delta and Lindane had the lowest statistical limits of detection of 0.018 ppm. Statistical hypothesis testing indicated that there was significant linearity in all selected organochlorine calibration curves. Four different reversed sorbent phases, including LC18, SC18- E and Strata-X (styrene divinyl benzene) were tested for organochlorine retention efficiency. The LC-18 200 mg cartridge proved to be the most robust and effective sorbent phase as it produced better recoveries varying from 90-130% for most analytes. A breakthrough volume of 100 ml for the LC-18 200 mg cartridge was determined using an optimum matrix load curve. It was then concluded that the method developed was suitable for further research towards the influence of the matrix on selective determination of the selected organochlorine pesticides. Four different calibration methods, namely matrix-free external standard, matrixmatched external standard, matrix-free internal standard and matrix-matched internal standard were applied to test the efficiency of computing recoveries. All calibration curves for the 20 organochlorine pesticides showed significant linearity > 0.99 when plotted on both Chemstation and Excel. The calibration methods were tested on three different matrices composed of a high sample matrix (synthetic matrix), a low sample matrix (real sample matrix) and a no sample matrix (ultrapure water). Statistical hypothesis testing led to the decision that there are significant differences between the mean recoveries of the three water sample matrices and also that the differences in the mean recoveries of the three sample matrices are independent of the both the two calibration techniques (internal standard and external standard) and calibration types (matrix-matched and matrix-free) applied. This led to the overall conclusion that the matrix effects have an overwhelming influence on the selective determination of the selected organochlorine pesticides.