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[Health damages from passive smoking]
1Avdeling for miljø- og yrkesbetinget kreft, Institutt for kreftforskning, Det Norske Radiumhospital, Oslo.
Summary
Passive smoking, or breathing secondhand tobacco smoke, exposes individuals to harmful chemicals. This exposure increases risks for children
Area of Science:
- Environmental Health
- Toxicology
- Public Health
Context:
- Environmental tobacco smoke (ETS) is a significant public health concern.
- ETS contains numerous harmful chemical substances, including nitrosodimethylamine.
- Non-smokers are involuntarily exposed to ETS through secondhand smoke.
Purpose:
- To summarize the health risks associated with passive smoking.
- To highlight the differential exposure to toxins in ETS compared to active smoking.
- To quantify the impact of ETS on non-smoker mortality.
Summary:
- Passive smoking involves inhaling air contaminated by tobacco smoke.
- Exposure to ETS leads to higher relative concentrations of certain toxins like nitrosodimethylamine compared to active smoking.
- Children exposed to ETS face increased risks of respiratory infections, ear infections, and asthma.
Impact:
- Passive smoking is linked to sudden infant death syndrome.
- Long-term ETS exposure elevates the risk of lung cancer and heart disease in non-smokers.
- In Norway, an estimated 50 non-smokers die annually from lung cancer and 300-500 from heart disease due to ETS.