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EC number: 200-521-5
CAS number: 61-82-5
Valid chronic studies based on international guidelines are available
for terrestrial plants and soil microorganisms.
Sunflower, cabbage and lettuce appeared to be the most sensitive species
18d-EC25 (Helianthus annuus) = 0.026 lb/acre (sunflower
vegetative vigor test), 14d-EC25 (Brassica oleracera) = 0.21
lb/acre (cabbage fresh weight, seeling emergence test) and 14d-EC25 (Lactuva
sativa) = 0.23 lb/acre (lettuce fresh weight, seedling emergence
test). In the seed germination test, lettuce appeared again as the most
sensitive species with : 7d-EC25 (Lactuva sativa) = 0.28 lb/acre.
The lowest NOEL observed was for dicots with : 0.016 lb/acre < NOEL
(dicots) < 2 lb/acre, in the vegetative vigor test.
In addition, the test substance appeared to cause only a slight
retardation in nitrification to soil microorganisms, but this effect
disappeared 90 days after treatment : NOEC (soil microorganisms) >= 100
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