chris geiger

The Cancer Survivors Club

Passive smoking

Breathing in other people's smoke can cause cancer

Passive smoking, or second-hand smoke can increase a non-smoker's risk of getting lung cancer by a quarter, and may also increase the risk of cancers of the larynx (voice box) and pharynx (upper throat).

Second-hand smoke can cause other health problems too, including heart disease, stroke and breathing problems. It’s estimated that, every year, second-hand smoke kills over 12,000 people in the UK from lung cancer, heart disease, stroke and the lung disease Chronic Obstructive Pulmonary Disease (COPD).


How does second-hand smoke affect children?

Second-hand smoke is particularly dangerous for children. Children exposed to passive smoke are at higher risk of respiratory infections, asthma, bacterial meningitis and cot death. Second-hand smoke has been linked to around 165,000 new cases of disease among children in the UK alone each year.

For children, the majority of exposure to second-hand smoke happens in the home. Over 1 in 5 of children in the live in a household where at least one person smokes.

Smoke can spread throughout the home, even if you open the windows. Almost 85% of tobacco smoke is invisible and smoke particles might also build up on surfaces and clothes, although the impact of this is not yet clear. If you are a smoker, smoking outside can help reduce your child’s exposure.


Is smoking in cars bad for passengers’ health?

Second-hand smoke can reach very high levels inside cars because it is a small enclosed space.

During your journey, children in the backseat will be exposed to average smoke levels around three times the European recommended air pollution standard. But the level varies depending on how much you smoke, if you have all the windows fully open or air con on. Peak levels can reach as much as 35 times this recommended level.

From 1 October 2015 it was made an offence to smoke in a vehicle carrying anyone under the age of 18 in England and Wales.


second-hand smoke contains dangerous chemicals?

There are 2 types of tobacco smoke:

 •Mainstream smoke, which is directly inhaled through the mouth end of the cigarette.

•Sidestream smoke, which comes from the burning tip of the cigarette.

Second-hand smoke is made up of sidestream smoke and exhaled mainstream smoke, mixed with the surrounding air.

Sidestream smoke is about 4 times more toxic than mainstream smoke, although people inhale it in a more diluted form. This is because sidestream smoke contains much higher levels of many of the poisons and cancer-causing chemicals in cigarettes, including:

•At least 3 times as much carbon monoxide

•10-30 times more nitrosamines

•Between 15–300 times more ammonia .

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Useful Links


Smoking causes cancer

The links between smoking and cancer are now very clear. Smoking accounts for more than 1 in 4 cancer deaths, and nearly a fifth of all cancer cases.  Read more --->>>


A range of alternatives to smoking are becoming increasingly popular. Read more --->>>

How to quit smoking

The best way for smokers to reduce their risk of cancer is to give up smoking completely. It takes time to see the benefit but giving up smoking saves lives.  Read more --->>>

Support Forums

Online Forums are a great way to connect with others touched by cancer. They enable users to search then communicate privately with other members, based on their type of cancer, age and location.


Writing for Survivors

Writing for cancer survivors - If you or any member of your family has been touched by cancer, we’d love to hear from you.

If you or any member of your family has been touched by cancer, Chris would love to hear from you.

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Submitting your story

Any story relating to cancer from anyone’s perspective can be submitted. However all stories must be true and make a positive impact.

Any story relating to cancer from anyone’s perspective can be submitted. However all stories must be true and make a positive impact.

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