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EC number: 235-252-2
CAS number: 12141-20-7
A read-across approach was used from data for soluble Pb salts without
concern on the toxicity of the accompanying anion. All reliable toxicity
data selected for calculation of the PNEC were derived from soils spiked
with soluble lead salts (such as lead chloride, lead acetate and lead
nitrate). All results were based on elemental Pb concentrations,
allow-ing straight comparison of the results and read-across to other Pb
substances. From the database of chronic lead toxicity to higher plants,
there are 44 individual high quality NOEC/EC10 values selected for PNEC
derivation. These data cover various endpoints (shoot and root yield or
net photosynthesis) for 14 different species from 6 different families
and vary between 57 mg Pb/kg dw for Hordeum vulgare (oat) to 6774 mg
Pb/kg dw for Triticum aestivum (wheat).
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