TableĀ 2.

Cu, Pb, Zn and pigment concentrations(mean) in PML needles

Sample SizeMetal and Pigment Concentrations, mg/kg
PbCuZnChl aChl bTC
Background3Perennial Needles4.949.711290.910.590.12
3Current Needles0.693.747.30.820.550.10
Mean of both2.826.7188.150.870.570.11
Site 14Perennial Needles27.909.90119.001.190.530.22
3Current Needles3.0826.1239.700.800.370.15
Mean of both15.4918.0179.351.000.450.19
Site 23Perennial Needles62.6052.70141.001.540.650.30
3Current Needles4.2116.9048.400.870.300.19
mean of both33.434.8094.701.210.480.25