Spatial pattern of air pollution's health risk and it's prevention zoning in Hubei Province
YANG Zhen， DING Qiyan， WANG Nian， SONG Wanying
1.Research Institute of Sustainable Development， Central China Normal University， Wuhan 430079， China；2.College of Urban and Environmental Sciences， Central China Normal University， Wuhan 430079， China
Abstract：This research constructs the assessment model of air pollution and health risk of Hubei Province in the perspective of pollution stress and social vulnerability. The introduction of the variation function will help analyze the general characteristics and directionality of spatial differentiation on health risks in each county and propose risk zoning plans and prevention strategies. The results indicate that： 1) the level of air pollution in the province exceeds the limits； the social vulnerability is in a medium level； and the health risks of pollution is in a high level overall. The high health risk areas are mainly distributed in the eastern and central regions of the Hubei Province. However， the medium and low risk areas are relatively scattered and there are many spots of low-risk level pollution in the west part of Hubei Province. 2) The maximum distance of spatial autocorrelation of health risk in each county is 225.6 km. The total spatial variation mainly results from the structural factors and their obvious directionality. The greatest variation is observed in northeast-southwest region. Whereas， the variation of direction in east-west and south-north decreases systematically. The unbalance in the southeast-northwest is the lowest. 3) According to the partition criterion (the relative excess of pollution and social vulnerability)， counties is able to be sorted into four types： pollution dominant， social fragile dominant， pollution-social fragile comprehensive dominant and no obvious dominant factor risk zones. And in this context， risk prevention strategies are put forward in the perspectives of promoting energy conservation and emission reduction and reducing social vulnerability.
2018, Vol. 52 
