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Air Quality Criteria for Lead Volume II of II - (NEPIS)(EPA) - US ...

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Table AX7-1.3.2. Plant Toxicity Data Not Used to Develop the Eco-SSL<br />

Plant Species Soil pH<br />

Studies eligible <strong>for</strong> Eco-SSL derivation, but not used<br />

Berseem clover<br />

(Trifolium alexandrium)<br />

Tomato<br />

(Lycopericon esculentum)<br />

AX7-63<br />

% Organic<br />

Matter Toxicity Parameter<br />

Pb in Soil<br />

(mg/kg dw)<br />

6.7 3.11 MATC 141<br />

7.73 1.70 MATC 71<br />

Tomato 8.20 0.86 MATC 71<br />

Fenugreek<br />

(Trigonella foenum-graecum)<br />

8.3 0.5 MATC 283<br />

Spinach (Spinacea oleracea) 6.7 3.0 MATC 424<br />

Corn (Zea mays) 6.5 2.1 MATC 158<br />

Sow thistle (Sonchus oleraceus) 7.23 1.6 MATC 2,263<br />

Studies not eligible <strong>for</strong> Eco-SSL derivation<br />

Loblolly pine (Pinus taeda) 5.5 3.4 NOAEC 480<br />

Red oak (Quercus rubra) 6 1.5 LOAEC 100<br />

Spinach 6.7 0.0 NOAEC 600<br />

Alfalfa (Medicago sativa) 6.4 1.0 NOAEC 250<br />

Alfalfa 6.9 1.7 NOAEC 250<br />

Alfalfa 6.9 1.7 NOAEC 250<br />

Radish (Raphanus sativus) 6.9 1.0 LOAEC 500<br />

Radish 6.9 1.0 LOAEC 100<br />

Radish 6.9 1.0 LOAEC 100<br />

Onion (Allium cepa) 8.3 0.5 LOAEC 50<br />

Radish 5.1 8.0 NOAEC 600<br />

Carrot (Daucus carota) 7.0 0.6 NOAEC 85<br />

Peas (Pisum sativum) 7.0 0.6 NOAEC 85<br />

Barley (Hordeum vulgare) 6.0 2.5 NOAEC 1,000<br />

Alfalfa 6.9 4.8 NOAEC 250<br />

Tomato 7.45 2.06 MATC 35<br />

Spinach 6.7 8.0 NOAEC 600<br />

Radish 6.2 8.0 NOAEC 600<br />

Radish 7.1 8.0 NOAEC 600<br />

*MATC = Maximum Acceptable Threshold Concentration, or the geometric mean <strong>of</strong> the NOAEC<br />

(no-observed-adverse-effect concentration) and LOAEC (lowest-observed-adverse-effect concentration).<br />

Source: U.S. Environmental Protection Agency (2005b).

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