Ãëàâíàÿ -
Ýêîëîãè÷åñêèé ýíöèêëîïåäè÷åñêèé ñëîâàðü -
áóêâà Ê - ÊÎÍÖÅÍÒÐÀÖÈß ÑÐÅÄÍßß ÑÌÅÐÒÅËÜÍÀß
ÊÎÍÖÅÍÒÐÀÖÈß ÑÐÅÄÍßß ÑÌÅÐÒÅËÜÍÀß
, êîíöåíòðàöèÿ òîêñè÷.
âåùåñòâà â îêðóæàþùåé ñðåäå,
âûçûâàþùàÿ ãèáåëü (ëåòàëüíûé ýôôåêò) ïîëîâèíû ñòàíäàðòíîé ãðóïïû ïîäîïûòíûõ æèâîòíûõ ïðè îïðåäåëåííîé ýêñïîçèöèè è îïðåäåëåííîì ñðîêå ïîñëåäóþùåãî íàáëþäåíèÿ.
Îáîçíà÷àåòñÿ ñèìâîëîì LC50 èëè ÑÊ50.