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Table 2. Arsenic concentrations in field collections of selected species of <br />flora and fauna. Values listed are in mg As/kg fresh weight (FW), or dry <br />weight (DW). <br />Ecosystem, species, and Concentration, Referenceb <br />other variables in mg/kg <br />TERRESTRIAL PLANTS <br />Colonial bentgrass, Aarostis tenuis <br />On mine waste site 1,480, Max. 3,470 DW 1 <br />On low arsenic soil (0.3-3) DW 1 <br />Scotch heather, Calluna vulgaris <br />On mine waste site 1,260 DW 1 <br />On low arsenic soil 0.3 DW 1 <br />Coontail, Ceratophyllum demersum <br />From geothermal area, New <br />Zealand (20-1,060) DW 1 <br />Cereal grains <br />From arsenic treated areas Usually <3 DW, Max. <br /> 252 DW 2 <br />Nontreated areas Usually <0.5 DW, Max. <br /> 5 DW 2 <br />Grasses <br />From arsenic treated areas (0.5-60,000) DW 2 <br />Nontreated areas (0.1-0.9) DW 2 <br />Apple, Malus sylvestris <br />Fruit <0.1 FW; <1.8 DW 1 <br />Alfalfa, Medicago sativa <br />USA 1.6 FW 1 <br />Montana, smelter area (0.4-5.7) FW 1 <br />White spruce, Picea alba <br />Arsenic-contaminated soil <br />Branch (2.8-14.3) DW 1 <br />Leaf (2.1-9.5) DW 1 <br />Trunk (0.3-55) DW 1 <br />Root (45-130) DW 1 <br />Control Site <br />All samples <2.4 DW 1 <br />Pine, Pinus silvestrus, needles <br />Near USSR metals smelter; <br />soil levels 120.0 mg As/kg 22 FW 3 <br />Trees <br />Nontreated areas Usually <1 DW 2 <br />Lowbush blueberry, Vaccinum angustifolium <br />Maine, leaf <br />22