Concentrations of Hg in bark of dominant species at four sites in the northeastern USA.

Abstract

<p>Tree species included American beech (BE), yellow birch (YB), red maple (RM), sugar maple (SM), red spruce (RS), white ash (WA), white pine (WP) and balsam fir (BF). Error bars represents the SE of Hg concentrations of three composited samples.</p