As shown in the figure and table, the Dalsung Cu–W mine located near Taegu city was one of the largest Cu mines in Korea with production reaching a maximum in the 1960s when rates accounted approximately 5–15% of the total Cu and 3–5% of the total W outputs in the country. The mineralization of the mine can be classified as a hydrothermal breccia-pipe type.
The plant and soil samples used in this study were collected from a known metal-contaminated site located in a square (N 345701600 and E 48802600; N 34 5601400 and E 48802200; N 34 5505800 and E 481103400 and N 345405300 and E 481002500) in the surrounding area of Hame Kasi mine of northwest Hamadan province in Iran. The site has occupied approximately 10,000 m2 and is covered mainly by grasses. Human activities such as mining have contributed to elevated metal concentrations in this site. Contamination of heavy metals was mainly concentrated in the top 20 cm at the site