- Contact with carcinogens:
- The flame retardant or asbestos: A long contact with this substance increases until seven times the risk of having lung cancer. There are three sources of exhibition:
- Occupational: it is that which is related with the workplace.
- Domestic servant: it is that which affects to the relatives of the workers of the flame retardant because of built in fibres in the clothes of the work.
- Environmental: most notably in countries where the flame retardant is exploded, as a South Africa, Australia or Canada.
During the last few years governments have forbid that this substance is used in industrial goods and agents. It is considered that, currently, the highest exhibition risk to the flame retardant is that one of workers that they participate in the works of dropped out of flame retardant and anyone who one, during its work, find asbestos of improvise, in particular anyone who work in the maintenance and the repair of buildings, factories, warships or trains. Construction workers are those which probably will be more exhibited in next few years, since, during a lot time, were given to the multiple asbestos uses and applications in the construction sector.
- The radon: When the uranium molders naturally produces radon, a radioactive gas that you can not see, does not have taste nor it smells. From the subsoil, has trend to be accumulated in the interior of edified housing in mountainous zones and rich in uranium. People that they work in the mines and they can be exposed to the radon in the tunnels.
Metals (arsenic, nickel and chrome): hard-working people of the automobile industry and of the cast iron of metals. More information in: Sociedad Española de Neumología y Cirugía Torácica
- Agents responsible for cancer at work: other carcinogenic ones (agents responsible for cancer) that it there is in the work area and that they can increase the cancer risk of lung include:
- Radioactive minerals as the uranium.
- Inhaled chemical substances or minerals as the arsenic, the berylium, the vinyl chloride, chromium platings of nickel, coal-burning products, mustard and ethers gas of clorometileno.
- Fuels as the petrol.
- Products of the combustion of the diesel.
- Some illnesses of the lung: as the tuberculosis, increase the possibilities of a person of having lung cancer. The lung cancer has trend to be taken place in the areas of the lung that they have scars of tuberculosis.
- Other: environmental pollution in some caused cities, for example, for cars or issuances of the factories.
Although all these factors are significant in the development of cancer, especially the tobacco, it is known that not all the people exposed to carcinogenic will develop a lung cancer, since just 10% - 15% of the people current cigarette smokers they have one.