Legacy of atmospheric Pollution: Size-Resolved water-soluble ions in PM from a 2015–2016 industrial city in central China - Hongxia Liu; Yanni Li; Jiaquan Zhang; Jianlin Guo; Shan Liu; Changlin Zhan; Mengqiu Zheng; Yao Mao; Xuanhua Liu; Wensheng Xiao (Atmospheric Pollution Research, 2026)