Assessing the relevance of atmospheric heavy metal deposition with regard to ecosystem integrity and human health in Germany

Environmental Sciences Europe

Table 3 Heavy metal contents (mg kg⁻¹ dry matter) in solid wood with bark of main tree species (n = 45)

Tree species	Heavy metal content [M]_ha (mg kg⁻¹ dry matter)
Tree species	Pb^a	Cd^a	Hg^a	Cu^a	Ni^a	Zn^a	As^b	Cr^a
Oak	2.97	0.13	0.02	2.19	1.58	5.27	0.02	0.74
Beech	1.52	0.15	0.02	1.77	1.28	10.53	0.02	0.54
Spruce	1.29	0.36	0.02	1.67	1.18	31.2	0.01	0.42
Pine	1.75	1.31	0.02	1.35	1.85	25.24	0.01	0.35
All others on average	1.81	0.29	0.02	1.91	1.48	11.20	0.015	0.53