Establish the Redevelopment Procedure and Priority Assessment of Brownfield in Taiwan
Date Issued
2015
Date
2015
Author(s)
Chuo, Yu-Yu
Abstract
Taiwan is a small but densely island. As a result, the land resources are very valuable and should be properly managed. However, the number of the contaminant sites in Taiwan keeps growing up every year because of the low delisted rate. There are only 29.5% and 6% of contaminated control sites and contaminated remediation sites have been delisted, which is because that the remediation goal are too strict and there are no finances incentive for the developers. As a result, the remediation cost is too high for the developers to afford. Those pollution sites are limited by the law and cannot be sold or developed, which not only makes the public health be threatened but also wastes the land resources. This situation not just happens in Taiwan. Many countries have faced the same problem. As to achieving sustainable land using, redeveloping those sites become one of the most emphasis issue, which can also be called brownfield redevelopment. Brownfield management has been developed for decades of years. Although the definition of brownfield are varied from country to country and different organizations, they have something in common, which is that they have the ability to be reused but need intervention for their contamination or potential contamination. In order to expedite the remediation and redevelopment of brownfields, flexible remediation level and financial incentive have been built. In addition, some studies also said that a priority assessment is necessary for using funds and resources efficiency. Therefore, this study is aim to introduce brownfield management to Taiwan and reuse the contaminated lands. First, the study establishes brownfield definition as “have been developed, are not in use or be abandoned currently, and have the potential to be redeveloped.” Than the study establishes a redevelop process, which starts from using the method in Groundwater Pollution Remediation Act to divided control sites and remediation sites. Next, control sites will be divided into brownfield and non-brownfields. The sites which be categorized as brownfield will then be calculated their remediation goals in four different land-use types, which are industrial, commercial, green space and residential by using health risk assessment method. The remediation goals based on the health risk assessment can lower the remediation cost because they will higher than the original one. After calculates four remediation level, the sites will be evaluated by redevelopment assessment, which using indicators and weighting to decide the priority and future land use of the sites. The case study in this study uses five sites to evaluate, and the result shows that the sites which have good location and high pollution will be developed first, and the one who has worst location will be the last. Because the score and the weighting in the redevelopment assessment are designed in own assumption, they should be redesigned by expert conference or AHP survey to avoid subjectivity. Furthermore, the government should also draw up the finance incentive policy and popularize environmental liability insurance as to encouraging developers devoted into reusing the contaminated sites in Taiwan.
Subjects
Brownfield management
Redevelop process
Priority assessment
Risk-based remediation goal
Contaminated sites
Type
thesis
File(s)![Thumbnail Image]()
Loading...
Name
ntu-104-R01541125-1.pdf
Size
23.54 KB
Format
Adobe PDF
Checksum
(MD5):4e99934d46a609e4131ed31c25caf188