Assertion: nerve agent's effect | /r/CapableOf | last 24 to 48 hours
Facets:
Source sentences:
text: The Army’s field manuals describe the effect: “mild peripheral effects of BZ occur within 1 hour and maximal central effects occur after about 4 hours lasting 24 to 48 hours, with a peak at 8 to 10 hours,” indicating that Russian forces may have deployed the gas several hours before the attack.