Unveiling infrastructure-induced vertical environmental inequity near elevated roads via drone-based measurements - Xing An; Yiling Zheng; Rongjia Zheng; Zengyuan Huang; Jiani Huang; Zuying Teng; Xiaoting Huang; Shouming Qi; Zirong Ma; Ruhui Cao; Zhanyong Wang (Journal of Hazardous Materials, 2026)