In small amounts and situations, your dog won't get a contact high from secondhand smoke. But smoking around dogs can be dangerous. The same goes for humans. Secondhand marijuana smoke can have negative health effects on those who are exposed to it, just like secondhand tobacco smoke.
A survey of American adults found that many erroneously believe it is safer for the lungs to smoke weed than tobacco, and that any potential harm from marijuana smoke is minimal. However, this is not the case. In fact, a new study shows that a majority of Americans believe that inhaling marijuana smoke is safer than inhaling tobacco smoke. Despite this public perception, daily marijuana use carries similar health risks to tobacco, including heart, lung, and mental health issues.
Most people are familiar with second-hand smoke as a result of tobacco use, particularly from cigarettes, cigars, or nicotine vaping. However, secondhand marijuana smoke can also be harmful. Yes, secondhand marijuana smoke contains THC. People who are exposed to secondhand cannabis smoke can inhale THC and fail a drug test. This is particularly concerning for those who may be subject to drug testing for work or other purposes.