Taherkhani, Amirmasood and karyab, hamid (2019) Methodology for Physical Health impact assessment of Civil Projects during Construction and Operation Stages: a Case Study in a Combined Cycle Power Plant. Masters thesis, Qazvin university of Medical Sciences.
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Abstract
Abstract Background and Objectives: In the implementing laws and implementing techniques of environmental impact assessment of projects, human health considerations have been neglected so that attention to human is considered as a part of the environment; so for more attention to this issue and considering the nature of many Of the projects, it is essential to evaluate their effects on human health. Given the lack of a specific model in this area, the purpose of this study was to evaluate the physical health impacts of the construction and operation stages of the combined cycle power plant. Materials and Methods: This study is a methodological research that was conducted between 2017 and 2018. By reviewing the documentation and interviewing 15 experts, variables affecting physical health were identified in eight scenarios of construction and operation of combined cycle power plants under normal and emergency conditions and immediate and out-of-band radius. The content validity of the items was then assessed and a questionnaire was used to determine the extent, duration, probability, magnitude and extent of health effects using the Likert four-point scale. The reliability and validity of the questionnaire were calculated by Cronbach's alpha in SPSS software. Then in a quadrilateral matrix the final score of each item was obtained, in fact each row of the questionnaire was a quadruple matrix of four. Health in five distinct levels including level one from 128 to 256, level two in the numerical range of 64 to 128, level three in the numerical range of 32 to 64, level four in the numerical range of 16 to 32, and level five in the numerical range of 1 to 16 will be wide. Finally, by identifying the first-level priority factors, the best way to evaluate the effects was determined based on the nature of these factors, and the next-level priority factors were identified using the same method. Results: Using a review of documents, interviews with experts, brainstorming sessions, use of knowledge and experience of experts and other stakeholders, the initial questionnaire with 120 items was identified. By determining the index and content validity ratio, 10 and 31 items were removed in different scenarios, respectively. Also in the reliability analysis of Cronbach's alpha coefficients that were determined individually and in each scenario; the total coefficient alpha of the tool was 0.9825 and this coefficient was greater than 0.7in all scenarios and dimensions. A good correlation was also found between the groups, and the domain validity questionnaire was valid and reliable. In the method used in this study, based on the magnitude, probability of effect, duration of effect, and extent of the effect, four parameter parameters were selected for evaluation. By locating and prioritizing, the items were classified into five levels, respectively, 6 items at level one, 40 items at level two, 62 items at level three, 80 items at level four and 222 items at level five. All 6 surface items were priority in the main criterion group of air pollutants, within the immediate radius of impact and during the operation phase. Discussion and Conclusion: The method presented in this study identifies the factors affecting physical health, determines their scope and prioritization to evaluate the effects of construction and operation of the combined cycle power plant on the physical health. This method is based on determining the range and prioritization of the factors; and each factor with the highest priority is considered as the appropriate method for evaluation. From the results of prioritization, all level 1 items are in the main criterion of air pollutants and in the range of immediate effects at the operation stage. So the first focus is on air pollutants, and in the evaluation we should go to the air pollutants that are created during the operation of the power plant; and then to choose the best possible method of estimating it depending on the need and availability of the necessary tools. Similar to most environmental studies of air pollutants, the study of the impact on physical health is important in the evaluation; and in implementing a project, it is essential to correct and control it and to reduce or eliminate air pollutants. The more accurate the domain is determined and the more reliable the domain is prioritized, the better the evaluation. The importance of this study is in the method of prioritizing, which helps to achieve the desired and reliable result in the simplest possible way because it is selected according to the prioritization of the evaluation method. So the main framework for selecting the evaluation way and method is to determine the scope of the factors and to prioritize them correctly, which may be the priority of other criteria in different construction projects, which vary according to the evaluation methods. Therefore, using the quadrilateral matrix used to determine the range of factors, it can be said with certainty that in assessing the physical health effects of the Iranian combined cycle power plants air pollutants are priority. Keywords: Prioritization, Domain Determination, Health Impact Assessment, Foursquare Matrix, Combined Cycle Power Plant
| Item Type: | Thesis (Masters) |
|---|---|
| Subjects: | T Technology > TD Environmental technology. Sanitary engineering |
| Divisions: | University Thesis > Faculty of Health > Environmental Health |
| Depositing User: | Health School Students |
| Date Deposited: | 19 Feb 2020 06:48 |
| Last Modified: | 19 Feb 2020 06:48 |
| URI: | http://eprints.qums.ac.ir/id/eprint/9586 |
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