Just a quick public service announcement:
Suprisingly, LSD actually leaves the body the fastest, only lingering in blood samples for three hours, and in urine and hair samples for three days. Marijuana, on the other hand, takes weeks to exit the body, hanging around in blood samples for a whopping 336 hours, in urine for 30 days and hair for 90 days. That’s because THC is fat soluble and is stored in the fat cells of the body.
From The Inertia.com
I know that THC can be detectable in urine for up to three months if you're a heavy smoker. So these numbers are probably all based on a single use and you should assume they'll be higher in a heavy user.
Edited by Sidestreet, 15 March 2017 - 05:12 AM.