Elucidating the role of overlooked environmentally persistent free radicals and reactive chlorine species on photoaged chlorine-containing microplastics: New insights into formation mechanisms and health risks. - Xie, Linyang; Ling, Jingbo; Huang, Kaiyou; Lin, Jianyu; Li, Hongjian; Zhou, Zhiyu; Gao, Shixiang; Ji, Rong; Gu, Cheng; Zhou, Dongmei; Gu, Xueyuan (Journal of Hazardous Materials, 2026)