Table 5 Median values of metal concentrations in mosses 1990 to 2020
From: Spatial patterns and temporal trends of trace elements in mosses from 1990 to 2020 in Germany
Element | Unit | 1990 (n = 475 to 592) | 1995 (n = 1026 to 1028) | 2000 (n = 1026 to 1028) | 2005 (n = 724 to 726) | 2015 (n = 397 to 400) | 2020 (n = 26) |
|---|---|---|---|---|---|---|---|
As | µg/g | 0.338 | 0.249 | 0.160 | 0.160 | 0.108 (0.101–0.114) | 0.119 (0.082–0.135) |
Cd | µg/g | 0.287 | 0.293 | 0.210 | 0.210 | 0.136 (0.130–0.148) | 0.210 (0.158–0.244) |
Cu | µg/g | 8.79 | 9.45 | 7.14 | 7.27 | 4.65 (4.44–4.84) | 5.87 (5.08–6.11) |
Ni | µg/g | 2.353 | 1.630 | 1.130 | 1.160 | 0.681 (0.653–0.722) | 1.800 (1.291–2.095) |
Pb | µg/g | 12.94 | 7.78 | 4.62 | 3.69 | 1.83 (1.69–1.97) | 1.88 (1.29–3.02) |
Sb | µg/g | n.a | 0.173 | 0.150 | 0.160 | 0.090 (0.085–0.097) | 0.148 (0.130–0.165) |