About 30 days on average.
Marijuana aka (Canabis) Can stay in your unrine or blood stream for up to 28 days.
Marijuana stays in your system for about 48 hours.
hii
About 15 days.
marijuana can be picked up in ur blood for up to a month, not sure about the rest but probably about the same amount of time
Forever!
for about a hour
it will stay in there for about 2 years
how long will one hit of herion stay in the blood
for 23 seconds.
just dont do it.