Soil metal contamination Poland

Chaney R. L., Angle J. S., Wang A. S., McIntosh M.S., Broadhurst L., and Reeves R. D., 2005, Phytoextraction of soil Cd, Ni and Zn using hyperaccumulator plants to alleviate risks of metal contaminated soils requiring remediation. International Workshop Current developments in remediation of contaminated lands p. 39, 27-29 October 2005. Pulawy, Poland. 

Verner, J.F., Ramsey, M.H., Helios-Rybicka, E. and Jedrzejczyk, B. (1996) Eleavy metal contamination of soils around a Pb-Zn smelter in Bukowno, Poland. Appl. Geochem., 11, 11-16. 

---