“…There are various remediation methods for As-contaminated soils, such as EK remediation, which can be performed in-situ to remove As from contaminated soils and mine tailings ( Baek et al., 2009 ). Besides, this remediation technology is suitable for areas with clay and sandy soils and is useful for widespread areas with decreasing contamination levels ( Suied et al., 2018 ). If the EK remediation method is combined with the phytoremediation technologies, the remediation efficiency might be increased.…”