JOURNAL ARTICLE

[Thoughts on and Construction of a Risk Management and Control System for Contaminated Sites in the Guangdong-Hong Kong-Macao Greater Bay Area]

Chun-Ying Chang, Min-Gang Dong, Yi-Rong Deng, Rong-Bo Xiao, Li-Li Liu
Huan Jing Ke Xue= Huanjing Kexue 2019 December 8, 40 (12): 5570-5580
31854630
Preventing the environmental risks linked to contaminated sites and guaranteeing the safety of human settlements are some of the challenges and tasks involved in the construction of world-class city clusters in the Guangdong-Hong Kong-Macao Greater Bay Area. Due to differences in the political systems and land property rights between Guangdong, Hong Kong, and Macao, as well as in the levels of urbanization, industrial structures, and environmental management capabilities of the nine cities in the Pearl River Delta, the risk management and control mode of contaminated sites varies considerably within the Greater Bay Area. In this context, an analysis of the features of risk management and control in the contaminated sites of typical cities can help strengthening technical communication and cooperation, optimizing risk management and control systems. This article briefly describes the risk management and control systems adopted for polluted sites in China; in particular it elaborates on the features of these systems in Guangzhou, Shenzhen, Dongguan, Hong Kong, and Macao, which have been subjected to monitoring, contamination assessments, and renovation procedures. During our study, the risk management and control systems adopted in different cities have been analyzed and compared; moreover, we elaborated thoughts and suggestions for land planning, policy feedback, information disclosure, and alliance mechanisms. We conclude that, overall, Hong Kong and several cities of the Pearl River Delta have established effective risk management and control systems for the polluted sites, which take into account certain local characteristics. However, with the further development and reuse of contaminated sites, the building of a world-class urban agglomeration in the Guangdong-Hong Kong-Macao Greater Bay Area will require safer, more refined, and more efficient risk management and control strategies. We highlight the need to exchange information among researchers in order to promote technical exchange and cooperation. This is particularly important for the risk management and control of polluted sites distributed within the two regions and nine cities of the Guangdong-Hong Kong-Macao Greater Bay Area, sine it would allow their safe reuse and efficient development.

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