razpolovna doba (t½)
Description:
Čas, ki je potreben, da se 50 % snovi, prisotne v posamezniku, populaciji ali ekosistemu, razgradi ali odstrani po naravni poti. Z izrazom razpolovna doba ali t½ pogosto opišemo čas, v katerem potencialno škodljive snovi, kot so kemični toksini, razpadejo
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