Table 2: Summary of selected results of sediment analyses

* All concentrations as ug/g (ppm) unless otherwise noted, based on 54 samples. ND = Not detected (i.e. below detection limit)

Element Sample concentration range (ug/g) OMOE LEL concentration range (ug/g) Average great Lakes sediment concentration (ug/g) Ontario surface soils average concentration (ug/g)
Cadmium ND – 1.9 0.6 10 1.1 4
Chromium 10.1 28.5 26 110 31 50
Copper 3.3 34.6 16 110 25 60
Iron (%) 0.56 3.37 2 4 3.12 3.5
Lead 2 58.9 31 250 23 150
Managanese 40.3 964 460 1100 400 1000
Nickel 4.5 18.7 16 75 31 60
Zinc 32 – 239 120 – 820 65 500