Pesticide spray drift and risk assessment using unmanned aerial vehicle (UAV) sprayer and traditional electric knapsack sprayer (EKS) - Xue Chen; Changling Wang; Mingyu Zhao; Zhaoyan Zhu; Tong Zhu; Jingyi Gao; Junxue Wu; Jiajun Han; Fanrong Zhao; Kai Wang (Science of The Total Environment, 2025)