Kui soovid oma küsimusele vastust, jäta meile oma e-posti aadress.
Aitäh, oleme tagasiside kätte saanud.
the concentration of material in air, water, soil or sediment to which test organisms are exposed which is estimated to be lethal to 50 % of the test organisms, aine mürgisisaldus, mis surmab pool katseorganismidest
