A–Z Glossary

Thirdhand Smoke

Thirdhand smoke consists of residual nicotine and other tobacco chemicals that settle on surfaces, fabrics, dust, and clothing after smoking.

← Back to A–Z Glossary

Search results for: Thirdhand Smoke

Smoking and secondhand smoke risks during pregnancy

Smoking and secondhand smoke risks during pregnancy

Why tobacco smoke is uniquely concerning in pregnancy Tobacco smoke is a complex mixture of gases and particles. Nicotine causes vasoconstriction and can affect fetal neurodevelopmental pathways; carbon monoxide binds hemoglobin with high affinity, reducing oxygen transport; and many combustion byproducts contribute oxidative stress and inflammation. In pregnancy, these effects intersect with the placenta, the […]