Assessment of cadmium distribution in some Australian krasnozems by sequential extraction
- Authors: Butt, David , Dowling, Kim , Vinden, Peter
- Date: 2008
- Type: Text , Journal article
- Relation: Water, Air, and Soil Pollution Vol. 190, no. 1-4 (2008), p. 157-169
- Full Text: false
- Reviewed:
- Description: A sequential extraction procedure was used to investigate the influence of long-term phosphate fertilization on the distribution of cadmium throughout the major components of krasnozemic soils in the potato growing district located to the East of Ballarat, Victoria, Australia. The soil fractions investigated consisted of the water soluble, exchangeable, weakly bound to metal oxides, strongly bound to metal oxides, bound to organic material and residual. Other soil parameters, such as pHH2O, pHCaCl2, electrolytical conductivity and total organic material were investigated. The concentrations of Ca, Mg, Fe, Mn and Zn in each soil fraction were also measured. The total concentration of cadmium in the farmed soils had increased from the background level of 100.5
- Description: C1
Seasonal changes in arsenic concentrations and hydrogeochemistry of Canadian Creek, Ballarat (Victoria, Australia)
- Authors: Sultan, Khawar , Dowling, Kim
- Date: 2006
- Type: Text , Journal article
- Relation: Water, Air, and Soil Pollution Vol. 169, no. 1-4 (2006), p. 355-374
- Full Text: false
- Reviewed:
- Description: A 10-month study of surface waters in Canadian Creek (Ballarat, Victoria, Australia) showed the significant influence of historic gold mining waste material. The investigation focussed on the hydrogeochemistry of the surface waters and soils in order to: (1) document the levels and seasonal trends in major, minor and trace elements in the creek, (2) identify the process by which As is released from the soil/waste mining material to surface waters. For most dissolved major and trace elements (Na, Ca, Mg, K, and As) in surface waters, the concentrations decreased with the increasing rainfall and flow conditions except for Al and Fe. Two sites selected along the creek (<1 km apart) allowed evaluation of the possibility that mining waste material is contributing to the elevated As concentrations (up to 145
- Description: C1
- Description: 2003001958