Can second hand smoke from weed be detected in a drug test?

The answer is yes and no. It may be detected but most employers test for certain levels. 99.9 percent of the time the level is not going to be high enough. If they test for 50 nanograms (and many do) and your level is at

10 nanograms it will come up negative. The test results will basically say that you have nothing in your system. Second hand cannabis smoke is not enough to register on most any test.