Effects of second-hand smoke on adults
Second-hand smoke contains more than 7000 chemicals, with 69 known to cause cancer.
There is no safe level of exposure to second-hand smoke. Second-hand smoke increases the risk of lung cancer, and the risk increases with the amount of second-hand smoke exposure and the duration of exposure.
The International Agency for Research on Cancer (IARC) concluded that non-smokers with a partner who smokes had an estimated 20-30 per cent increased risk of lung cancer.
Second-hand smoke causes immediate adverse effects on the body, which have short-term and long-term impacts.
- sore throat
- itchy eyes
- nasal irritation
- shortness of breath
- lung and other cancers
- coronary heart disease
- chronic obstructive pulmonary disease
- respiratory issues such as asthma
- poorer general health outcomes
- premature death
The health risks from passive exposure to second-hand vapour are largely unknown as long-term research studies do not yet exist. To learn more, visit here.