The present study was carried out around Tehran, Iran, where wastewater has been commonly used for irrigation of peri-urban crops for many years. The objective of the present report is to quantify concentration and contamination of Zn, Cu, Ni and Pb in irrigation ...

Proposed mining projects vary according to the type of metals or materials to be extracted from the earth. The majority of proposed mining projects involve the extraction of ore deposits such as copper, nickel, cobalt, gold, silver, lead, zinc, molybdenum, ...