You already know secondhand smoke is dangerous. A new study from the Institute of Atmospheric Physics at the Chinese Academy of Sciences shows a quieter threat can linger much longer indoors: ...

Thirdhand smoke lingers in homes and may expose children to toxic substances even without active smoking. Biomarker testing revealed tobacco exposure in all children studied, despite 60% of caregivers ...

Thirdhand smoke stays on surfaces and slowly pollutes indoor air long after smoking stops within indoor environments.