RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2016, Vol. 25 >> Issue (03): 453-461.doi: 10.11870/cjlyzyyhj201603012

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ZONING OF URBAN ENVIRONMENT RISK BASED ON ACCIDENT RISK SOURCES——A CASE STUDY OF NANJING

WANG Xiao-hui1,2, CHEN Shuang1, QIN Hai-xu3, GUAN Pei3   

  1. 1. Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China;
    2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China;
    3. Nanjing Research Institute of Environmental Protection, Nanjing 210013, China
  • Received:2015-01-07 Revised:2015-06-04 Online:2016-03-20
  • Supported by:
    the National Natural Science Foundation of China (Grant No.41371179);Knowledge Innovative Program of the Chinese Academy of Sciences (Grant No. KZCX2-EW-315)

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Abstract: On the basis of the individual risk assessment, in this paper we study the maximum influence radius from the perspective of risk receptor when the accident of the urban internal risk source happened with the maximum likelihood. According to the spatial analysis of different types of risk source radii, the urban environmental risk zoning results were obtained through the comprehensive evaluation. We chose Nanjing as the research object. From the scope and degree of multi-type risk source inside the city, we analyzed the influence factors and radius in accident risk assessment including hundreds of hazardous chemical, hazardous waste, heavy metal pollution, high voltage corridor and natural gas highpressure pipeline, using the risk cartography to evaluate the urban accident risk. Considering the layout and city system we proposed the prevention measures and optimization suggestions. From the perspective of risk target we put forward the evaluation method and optimization recommendations. Our study will be important for the urban master planning, industry development planning and land use planning in the future of Nanjing city.

Key words: urban accident risk, risk assessment, risk zoning, overlay analysis

CLC Number: 

  • X820
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