This study aimed to analyse the heavy metal content in eggs and feeding stuffs dedicated to organically reared
birds as an indirect indicator of agricultural environment pollution. The material consisted of 180 table eggs,
from caged hens and two organic farms (OF) with different locations. Feed samples were also collected. The
samples were mineralised and the content of Ca, Na Mg, K, Fe, Zn, Cu (in yolks) and Pb, Cd, As, Cr (in yolks and
feed) was determined. The home-produced feed mixtures contained higher doses of heavy metals (HM) compared
to their commercial equivalents. Although no high levels of HM contamination were found in the feed com-
pounds, their content in the eggs was significantly higher than in the feed. Also, depending on the region of the
study, metal concentration levels can vary significantly. Due to the area-limited nature of poultry production
sites, eggs obtained in specific areas can serve as an indirect and non-invasive bioindicator of environmental HM
pollution. The analyse of correlations between particular elements allows to assess the impact and extent of
pollutant emitters and to model the areas designated for OF to ensure that the produced food is as safe as
possible.