GWMP 03 Theodore Roosevelt Island

George Washington Memorial Parkway

Site data

38.8981N 77.0625W

Marshy maple-ash stand

Corticololous lichens in plot 2004 (abundance)

Flavoparmelia caperata (3)

Phaeophyscia rubropulchra (3)
Physcia millegrana (3)

Punctelia rudecta (4)

Element data (mean µg/g ± SD)

2004	2009
Cd  < 0.54 Cu  19.31 ± 5.89 Cr   1.58 ± 0.05 Pb  34.30 ± 5.75 Ni   1.91 ± 0.13 Zn  49.92 ± 8.98 S  1685.4 ± 144.3 Hg  0.16 ± 0.02	Cd  < 0.50 Cu  14.15 ± 1.55 Cr   2.42 ± 0.56 Pb  21.05 ± 5.05 Ni   2.58 ± 0.55 Zn  48.23 ± 2.23 S  1741.0 ± 32.7 Hg  —