[1] Chinese Acad Sci, State Key Lab Organ Geochem, Guangzhou Inst Geochem, Guangzhou 510640, Guangzhou Prov, Peoples R China
[2] S China Agr Univ, Coll Nat Resource & Environm, Guangzhou 510642, Guangdong, Peoples R China
[3] Univ Edinburgh, Inst Infrastruct & Environm, Sch Engn, Edinburgh EH9 3JL, Midlothian, Scotland