However, studies to determine snake venom lethality or potency need to be designed to minimise variability and several techniques have been designed to this end.
In organisms that are normally diploid, polyploidy, the state of having three or more sets of chromosomes, results in extreme developmental abnormalities or lethality.
He elaborates on how other released isotopes cause leukemia (strontium-90) and birth defects (cesium-137) before wondering at the foolish futility of colour-coding radioactive gases of such lethality.
Currently, however, they are all but prohibited in most municipalities due to liability issues stemming from their potential lethality when used as a compliance device.