- 200
- adsorption
- arsenic
- arsenopyrite
- bioavailability
- causes
- contact
- dissolved
- environment
- Fe
- groundwater
- iron
- mesothermal
- mineralised
- mn
- mobilisation
- mobility
- negligible
- o4
- otago
- oxidation
- oxidised
- oxyhydroxides
- particulate
- pathways
- plant
- plants
- predominantly
- principal
- processing
- rapidly
- removed
- rock
- scales
- scorodite
- seen
- semiarid
- slowly
- soils
- southeastern
- surface
- typically
- vadose
- veins
- weak
- weeks
- workings
