Smoking cannabis in the home increases odds of detectable levels in children

A study by UC San Diego, published in JAMA Network Open, found that in-home cannabis smoking significantly increases children's exposure to cannabis smoke. Researchers analyzed urine samples from children in 275 households, revealing that 69% of those in smoking households had detectable cannabis biomarkers, compared to 24% in non-smoking homes. Lead researcher John Bellettiere emphasized the potential long-term health risks, as cannabis smoke contains carcinogens and respiratory irritants. The study suggests that adopting tobacco-style smoke-free policies could help protect children from exposure.

Exposure to Secondhand Cannabis Smoke Among Children