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| Set pair analysis for regional atmospheric environmental risk assessment |
| XING Yong-jian, WANG Xu, DU Hang |
| School of Safety Engineering, Shenyang Aerospace University, Shenyang 110136, China |
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Abstract Because multiple sources release multiple stressors and these stressors affect multiple habitats and endpoints, the spatial information of interaction is limited and uncertain. Set pair analysis (SPA) can effectively describe and deal with the environmental risk systems with limited and uncertain spatial information and model the distribution of environmental risk of poisonous gases after accidents. In this paper, the regional atmospheric environmental risk of Nanjing Chemical Industry Park was analysed by SPA model. In order to describe the distribution of atmospheric environmental risks in different conditions, this paper classified the risks into 5 levels and discussed the value of variation uncertainty coefficient. Under i1=0.5, i2=-0.5, the analysis is not complex and the level of regional atmospheric environment risks is close to the actual situation. The analysis result under these variation uncertainty coefficient can guide the optimization of land use planning and improvement of environmental risk control measures.
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Received: 27 July 2015
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