I took a urine test and 5ng of thc showed. will that show in a hair folicle? i was around 2nd hand smoke.

THC: Theoretically a tiny amount but this level should not impede emploability and is below confirmatory testing.

Amt of exposure?: In “Pharmacokinetics of Cannabinoids” by McGilveray IJ it is stated “Hair tests are more likely to detect regular than occasional marijuana use. One study found that 85% of daily users tested positive for marijuana, versus 52% of occasional smokers (1-5 times per week).