Selenium - The Risk Assessment Information System

Table 3.1 Plant Toxicity Data - Selenium
Reference
IP
Number
Study
ID
Test Organism
Soil pH OM%
Bioavailability
Score
ERE
Tox
Parameter
Tox Value
(Soil Conc
at mg/kg
dw)
Total
Evaluation
Score
Eligible for
Eco-SSL
Derivation?
TN & Associates, 2000 56444 V Alfalfa Medicago sativa 6.3 0.1 2 GRO EC 20 0.1 18 Y Y
TN & Associates, 2000 56444 W Barley Hordeum vilgare 6.3 0.1 2 GRO EC 20 0.2 18 Y Y
TN & Associates, 2000 56444 X Brassica Brassica rapa 6.3 0.1 2 GRO EC 20 0.2 18 Y Y
Singh et al., 1980b 21715 Raya Brassica juncea 7.9 0.17 2 GRO MATC 1.4 13 Y Y
Singh et al., 1980a 21716 Berseem Trifolium alexandrinum 8 0.14 2 GRO MATC 1.6 12 Y Y
Wan et al., 1988 7562 g Alfalfa Medicago sativa L. 5.6 1.3 2 GRO MATC 0.9 12 Y Y
Wan et al., 1988 7562 h Alfalfa Medicago sativa L. 6.9 1.1 2 GRO MATC 0.9 12 Y Y
Singh and Singh, 1979 21714 Cowpea Vigna sinensis 8 0.1 2 GRO MATC 0.8 11 Y Y
Geometric Mean 0.52
Data Not Used to Derive Plant Eco-SSL
Wan et al., 1988 7562 a alfalfa Medicago sativa L. 7.2 0.8 2 GRO NOAEC 1.5 12 N N
Wan et al., 1988 7562 b barley Hordeum vulgare L. 7.2 0.8 2 GRO NOAEC 1.5 12 N N
Wan et al., 1988 7562 c beet Beta vulgaris L. 7.2 0.8 2 GRO NOAEC 1.5 12 N N
Wan et al., 1988 7562 d tomato Lycopersicon esculentum Mill. 7.2 0.8 2 GRO NOAEC 1.5 12 N N
Wan et al., 1988 7562 e alfalfa Medicago sativa L. 6.7 1.1 2 GRO LOAEC 0.5 12 N N
Wan et al., 1988 7562 f alfalfa Medicago sativa L. 6.8 0.9 2 GRO NOAEC 3.0 12 N N
TN & Associates, 2000 56444 S Alfalfa Medicago sativa 5.0 5.0 0 GRO EC20 1 16 Y N
TN & Associates, 2000 56444 T Barley Hordeum vilgare 5.0 5.0 0 GRO EC20 3 16 Y N
TN & Associates, 2000 56444 U Brassica Brassica rapa 5.0 5.0 0 GRO EC20 1 16 Y N
EC10 = Effect concentration for 10% of test population NOAEC = No observed adverse effect concentration
EC20 = Effect concentration for 10% of test population ns = Not specified
EC50 = Effect concentration for 50% of test population OM = Organic matter content
ERE = Ecologically relevant endpoint REP = Reproduction
GRO = Growth Y = Yes
LOAEC = Lowest observed adverse effect concentration Bioavailability Score described in Guidance for Developing Eco-SSLs (U.S. EPA, 2003)
MATC = Maximum acceptable toxicant concentration. Geometric mean of NOAEC and LOAEC.
N = No
Total Evaluation Score described in Guidance for Developing Eco-SSLs (U.S. EPA, 2003)
Eco-SSL for Selenium 6 July 2007
Used
for Eco-
SSL?