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Impact Assessment of Repeated Exposure of Organotypic 3D Bronchial and Nasal Tissue Culture Models to Whole Cigarette Smoke
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Exposure to Secondhand Cannabis Smoke Among Children
Osika Tripathi1,2, Humberto Parada1, Connie Sosnoff3
1San Diego State University, School of Public Health, San Diego, California.
JAMA Network Open
|January 23, 2025
Summary
In-home cannabis smoking significantly increases children's exposure to cannabis smoke, detectable via urinary cannabinoids. Reducing indoor smoking protects children from toxic chemicals.
Area of Science:
- Environmental Health
- Pediatric Health
- Toxicology
Background:
- The extent to which in-home cannabis smoking is detectable in children's urine is not well understood.
- Assessing secondhand cannabis smoke exposure in children is crucial for public health.
Purpose of the Study:
- To investigate the association between in-home cannabis smoking and the presence of cannabinoids in children's urine.
- To quantify children's exposure to cannabis smoke in residential settings.
Main Methods:
- Cross-sectional study using baseline data from Project Fresh Air (2012-2016).
- Analysis of urine samples from 275 children (under 14) in San Diego County households.
- Measured in-home cannabis smoking via parent report, air particle counts, and residualization algorithms; analyzed urinary THC and its metabolites for total THC equivalents (TTE).
Main Results:
- 27.3% of children had detectable urinary cannabinoids.
- Households reporting in-home cannabis smoking had 5x higher odds of detectable TTE in children (OR, 5.0).
- Each additional daily cannabis smoking event increased odds of detectable TTE (OR, 2.5).
Conclusions:
- In-home cannabis smoking is significantly associated with increased child exposure to cannabis smoke, evidenced by urinary biomarkers.
- Reducing in-home cannabis smoking is vital to decrease children's exposure to harmful chemicals in cannabis smoke.
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