Roe Deer Antlers as Historical Bioindicators of Lead Pollution in the Vicinity of a Lead Smelter, Slovenia
2009
Pokorny, B. | Jelenko, I. | Kierdorf, U. | Kierdorf, H.
Roe deer (Capreolus capreolus) antlers are a useful tool for historical biomonitoring because they accumulate potential bone-seeking pollutants (Pb) and are naturally standardized environmental samples. Lead concentrations were measured in 45 antlers of roe deer, shot in the period 1925-2003 in the Upper Meža Valley, Slovenia, where lead production started at the end of the nineteenth century. Extremely high levels of lead were determined in the antlers (mean (SD) 54.7 (33.5) mg/kg, dry weight; range 2.69-554 mg/kg), exceeding previously reported levels of Pb in roe deer antlers from Europe. After the cessation of primary lead production in 1989, lead levels in antlers have been declining but are still high (period 2000-2003: mean (SD) 5.81 (6.60) mg/kg; range 2.69-7.74 mg/kg) compared with other areas of Slovenia. Spatial comparison confirmed that the lead contamination declines with distance from the emission source. The study confirmed the exceptional potential of roe deer antlers as a bioindicator of lead contamination of the environment.
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