The historical framework and background to the process of approving quarries for construction materials in South Africa is examined in depth. In order to produce a proposed Environmental Evaluation System for the assessment of quarries in South Africa, the interrelationships of Quarries and the Environment are briefly examined philosophically. Environmental Impact terminology and Environmental Impact Assessment methodologies, techniques and procedures are also discussed.

Bibliography: pages 105-107. / This dissertation forms part of the requirements for the degree of MSc in Environmental Science and was supervised by Professor R Fuggle, Head of Department of the Department of Environmental and Geographical Science. The dissertation describes and examines the practical application of integrated environmental management (IEM) by analyzing a case study. IEM is a methodology developed in South Africa under the direction of the Council for the Environment, the purpose of which is to incorporate environmental considerations into all aspects of planning and development. A guideline document on the implementation of IEM was published in 1989 (Council for the Environment, 1989(A)), and later updated and a set of six guideline documents was published in 1992 (Department of Environment Affairs, 1992 (A) to (F)). The case study is the proposed development of a rock quarry in a peri-urban area near Johannesburg, South Africa. It was implemented in accordance with the original version of lEM. The availability of the updated guidelines and the experience gained in the case study provided potential for comparison between the original and updated procedures. Other points of relevance regarding the case study are that the site is situated in a rapidly developing area, and could therefore cause significant social impacts; the study was conducted at the most detailed level of the original IEM procedure (Class 1 ); and involved public participation, which has been emphasised in the updated IEM procedure.

No description available.

Thesis (M. Sc.)--University of Hong Kong, 1995. / Includes bibliographical references (leaves 74-76).

Orientador: Leandro Eugenio da Silva Cerri / Banca: Fábio Augusto Gomes de Vieira Reis / Banca: Flávio Henrique Mingante Schlittler / Resumo: A avaliação da significância dos impactos ambientais continua a ser um importante componente crítico ainda mal compreendido da prática da avaliação de impactos ambientais. Este trabalho é um estudo sobre as conclusões de uma revisão bibliográfica sobre a avaliação e comunicação de avaliação do impacto ambiental praticada no Brasil. É dada especial atenção para a importância da utilização de critérios, padrões e métodos de avaliação de impactos ambientais que pretendendo incorporar mais eficiência nos estudos de impacto ambiental. Assim, o objetivo desta pesquisa foi a realização de uma proposta, incluindo o desenvolvimento de procedimentos e aplicar na avaliação de impactos ambientais situações relativas à sua formulação, aplicação e interpretação da significância dos critérios, conclusões e recomendações pertinentes para respeitar o objetivo da avaliação de impacto ambiental que é garantir a viabilidade ambiental das atividades humanas. / Abstract: The evaluation of the significance of environmental impacts remains an important critical yet poorly understood component of environmental impact assessment practice. This work is a study upon the findings of a bibliographic review about the evaluation and communication of environmental impact assessment in Brazil practice. Particular attention is given to the use of significance criteria, thresholds and EIA methodologies intending to incorporate more efficiency of environmental impact statement. Thus, the aim of this research was the accomplishment of a proposal including the development of procedures to apply in EIA issues surrounding the formulation, application and interpretation of significance criteria, conclusions and recommendations relevant to respect the aim of EIA that in provide environmental viability of men activities. / Mestre

In the United States, biodiversity impact assessment has historically received little attention. Responding in 1993, the Council on Environmental Quality (CEQ) released guidelines on incorporating biodiversity into environmental impact assessment under the National Environmental Policy Act of 1969. The objectives of the study here were to identify the level of documentation of biodiversity impact assessment in sample Environmental Impact Statements (EISs); identify whether in the years following the release of 1993 CEQ guidelines any significant changes have taken place in assessment of biodiversity; identify deficiencies, and if the need exists, formulate appropriate recommendations and approaches for addressing biodiversity in EISs. The study involved a systematic review of 30 EISs published since the release of CEQ guidelines, and five EISs published prior to it. The review involved answering a series of standard questions, which attempted to ascertain the level of biodiversity impacts included in each impact statement. Trends in approaches to biodiversity impact assessment were investigated and deficiencies summarized. The analysis resulted in a series of recommendations for improving the manner in which biodiversity impact assessment can be approached.

This thesis presents why a new user-centred design process for eco-design would be beneficial and demonstrates how this could be done. The research produces a methodology for collecting and measuring behaviour information and a framework for assessing its impact. It explores the role of and effective introduction of information in the design process and finally concludes with the proposed design approach for reducing the environmental impact of products during their use. Utilising a range of qualitative and quantitative research methods, energy models, observational studies, laboratory design experiments, participation research, product prototyping and industrial consultation, a comprehensive picture of designing for energy-efficient user behaviour is formed. It illustrates how behaviour information can be recorded and quantified, assessing the division between a product's intrinsic, technology-based, energy efficiencies and those that are deemed user-related. Finally, in conclusion this information is then used in a new design approach which proposes a framework for the effective and time-efficient design of products, producing a prototype design which achieves an ongoing 43% energy saving in user related losses.

This research was developed to investigate the potential environmental impacts of poor air quality in Perth. This involved improving existing vegetation maps (through satellite image analysis techniques) for biogenic or forest emissions as a precursor to smog in Perth. Further, to visualise potential environmental impacts associated with poor air quality, a four- dimensional (volumetric over time) animation was created which clearly shows the path and extent of smog in Perth throughout an entire day.Computer mapping of vegetation using Landsat TM data was performed to create an updated inventory of forest types in Perth as input into a photochemical smog model. By improving the inventory of forest cover, the Department of Environmental Protection (DEP) in Perth can calculate up to date biogenic emission estimates for the photochemical smog model.Outputs from the DEP's photochemical smog model were integrated into a Geographical Information System (GIS) and subsequently visualised to show plume movement and potential environmental impact. Two datasets (nitrogen oxides and ozone) were provided to investigate the volumetric and dynamic temporal movement of photochemical smog in Perth on one day, March 16, 1994.Nitrogen oxide sources can range from industry and petroleum refining to motor vehicle exhaust emissions, and are a major precursor to photochemical smog (ozone) formation in Perth. Natural emission sources (forest or biogenic emissions) can also be an important contributing factor to the photochemical smog mix in Perth. Biogenic emissions are comprised of Reactive Organic Chemicals (ROC) or Volatile Organic Compounds (VOC) which act as a catalyst to aid the nitrogen oxide conversion to ozone.Three-dimensional and four-dimensional GIS techniques were used to highlight both plume movement and environmental impact. These two sets of visualisations have differing ++ / chemical levels (higher and lower, respectively) to show movement and interaction effectively. Visualisation of the chemicals allows for a greater understanding of the mostly invisible chemical movement over the course of a day and its potential impact to humans and vegetation.The spatial and temporal interaction of the plumes was investigated by creating a series of animations that can be viewed over the Internet. By using multimedia capabilities, these results can be easily distributed to a wide range of decision makers and people generally interested in smog in Perth.

Thesis (Ph. D.)--University of Hong Kong, 2007. / Title proper from title frame. Also available in printed format.

This study was initiated by the authors in order to evaluate the Twister™ method’s environmental pros and cons in relation to other traditional floor care methods using polish and wax. This has been ascertained through a Life Cycle Assessment which was conducted within the study. The study has been in co-operation with HTC Sweden AB, the developer of the Twister™ method. The results show that the elements of the Twister™ method with the greatest environmental impact are the scrubbing machine that is used and the low energy consumption that the Twister™ method requires. The results also show that the Twister™ method has a significantly lower environmental impact than floor care methods using polish or wax. The parts of the Twister™ pad that have the greatest environmental impact are the industrial diamonds and the material that makes up the pad.