Research advances in environmental corrosivity mapping techniques Gang Chen, Xing Zhai, Yan Wang, Yongwei Zhang, Renchang Sun, Deyu Bao, Bingshi Jiang, Haifeng Du, Wenjing Zhao and Luyao Huang E3S Web Conf., 561 (2024) 02016 Published online: 09 August 2024 DOI: 10.1051/e3sconf/202456102016