Bελτίωση περιαστικού περιβάλλοντος - Η περίπτωση της Ελευσίνας
Improvement of the suburban environment - The case of Eleusis

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Keywords
Περιβάλλον ; Ελευσίνα ; WTA ; WTP ; CVMAbstract
Eleusis is located in a privileged geographical position that favored the development of important settlements from ancient times until today. In ancient times it was known for the Sanctuary of Demeter and the “Eleusinian Mysteries” and in modern times for the industrial development of the beginning of the 20th century. This industrial caused a series of environmental problems and degraded the quality of life of its inhabitants.
The present paper records the course of the establishment of industries along the city’s coastal front, the measurement of atmospheric pollutants, the profile of the residents and their requests for improvement. In the research, the method CVM – Hypothetical Valuation Method was applied which is a suitable tool in the valuation of goods to improve the environment as the classic valuation methods work on tradable goods and are not suitable for non – tradable ones as the supply – demand principle does not apply and the diversity and the abstract nature of environmental goods frustrates any attempt to quantify any of their properties.
The main tool was a questionnaire designed and studied to contain demographic data, relations with the city of Eleusis and acceptance or rejection of the city, existence or not of environmental consciousness and management to answer at the WTP and WTA questions.
The CVM methodology includes 2 parameters. The first parameter ‘Willingness to Pay’ (WTP, Willingness to pay) show responders willingness to pay to obtain an improved peri – urban environment, while the parameter ‘Willingness to Accept’ (WTA, willingness to accept) indicates the amount they wish to receive responders in order to lose the environment asset, i.e. that no environmental protection and restoration intervention be made in the city.
The answers showed that 179 out of 250 responders are not willing to give money other than what they already pay (tax, municipal fees). On the contrary, 45 out of 250 are willing to receive a lump sum as compensation so that no interventions are made. Then the advantages and problems of the specific method were recorded. Among the advantages is the possibility of reliable recording of the socio – economic character of the area, while the problems are dominated by the difficulty of costing the upgrading of the environment, whether someone has to pay or be paid. While the answers to the WTP and WTA questions did not give a clear picture, a sample of 13 people expressed very specific suggestions for improving the peri – urban environment of Eleusis. The Hypothetical Evaluation Method is a useful evaluation tool in the valuation of the environmental goods, particularly the value that society assigns to this good. On a second level, useful conclusions can be drawn regarding the urban and peri – urban environment development programs that must be implemented.