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Tree‐ring growth analysis can provide information about tree development for forest inventory, environmental assessment, atmospheric and soil monitoring. Metal concentrations in wood increment correlate with metal concentrations in the environment and can indicate local environmental contamination sources. One of the most important steps of tree analysis is tree‐ring sampling. To determine trace metal (TM) concentrations precisely in a separate ring, the possibility of random errors during wood sampling must be eliminated. This guides to choose a precise tree‐ring sampling method. This paper examines three tree‐ring sampling tools (common chisels, arched chisels and a plane) and compares TM concentrations (Mn, Zn, Ni, Cr, Cu, Pb,) in wood samples collected by each of the methods employed. Average values of metals in tree rings sampled with common chisels, arched chisels and plane were 17.0±0.16 mg/kg for Mn, 4.7±0.21 mg/kg for Zn, 0.49±0.20 mg/kg for Pb, 0.29±0.02 mg/kg for Cu, 0.21±0.02 mg/kg fo...

COMPARISON OF THREE TREE‐RING SAMPLING METHODS FOR TRACE METAL ANALYSIS