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EC number: 233-334-2
CAS number: 10124-43-3
the database of chronic cobalt toxicity to higher plants, there are 83
individual high quality NOEC(L)/EC10 values for various endpoints (shoot
yield, shoot length, root yield, root length) for 7 different species
exposed to a variety of natural soils from Europe and North America and
laboratory-derived artificial soils. When
expressed as total soil Co, these range from 3.2 mg Co/kg dw for Medicago
sativa (Kapustka and Eskew, 2000) to 647 mg Co/kg dw for Hordeum
vulgare (Li et al, 2007). Below are the accepted high quality
studies for terrestrial plants used for derivation of the HC5 and
Table X. High
quality studies for terrestrial plants used for derivation of the HC5
and terrestrial plant PNEC
Added NOEC or EC 10 (mg Co/Kg dw)
Total NOEC or EC10 (mg Co/Kg dw)
Velicogna et al., 2010; Kapustka and Eskew, 2000
R. sativa (radish)
Velicogna et al., 2010
E. labceolatus (northern wheatgrass)
Li et al., 2007; Velicogna et al., 2010
L. esculentum (tomato)
Velicogna et al., 2010
T. pratense (red clover)
Li et al., 2007; Mico et al, 2008; Lock et al., 2007; Kaputska and Eskew, 2000
H. vulgare (barley)
Li et al., 2007
B. napus (oil seed rape)
Kapustka and Eskew, 2000
M. sativa (alfalfa)
Long-term EC10/LC10 or NOEC for terrestrial plants: 2.9 -617 mg/kg soil
dw (added Co).
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