My paper titled ‘A framework for delineating the regional boundaries of PM_2.5 pollution: A case study of China’ is accepted by Environmental Pollution on 18 December 2017. It addresses an important topic: PM_2.5 pollutions. The literature has well demonstrated the PM_2.5 problem is a regional issue but we found that there is little research in answering important questions such as how regional are the PM_2.5 pollutions? In other words, how large is the area where the PM_2.5 pollutions interact with each other? Is there an approach to delineate the boundaries of PM_2.5 pollutions? In an attempt to address these questions, our paper proposes a novel framework for delineating the boundaries of PM_2.5 pollutions. The framework consists of four steps and uses cross correlation method, time-series cluster analysis technique, Voronoi polygons, and polynomial approximation with exponential kernel method. Then this paper applied this framework in China using ground-based PM_2.5 data and the boundaries of PM_2.5 pollutions in China are delineated. The primary contribution of our study is the provision of this framework as a tool to delineate PM_2.5 boundaries and identify the area where the PM_2.5 pollutions interact with each other. It also provides a useful reference for policymakers and practitioners to define management zones for regional air pollution control and assess impact related to PM_2.5 pollutions.

For details of this article, please refer to this link.