Studies of special note and resources include: A study published in February found that thirdhand smoke causes the formation of carcinogens. The nicotine in tobacco smoke reacts with nitrous acid — a common component of indoor air — to form the hazardous carcinogens. Nicotine remains on surfaces for days and weeks, so the carcinogens continue to be created over time, which are then inhaled, absorbed or ingested.
Children of smokers are especially at risk of thirdhand smoke exposure and contamination because tobacco residue is noticeably present in dust throughout places where smoking has occurred. The homes, hair, clothes, and cars of smokers can have significant levels of thirdhand smoke contamination. Young children are particularly vulnerable, because they can ingest tobacco residue by putting their hands in their mouths after touching contaminated surfaces.
This includes hidden surfaces that we may not typically see, such as the underside of tables, the inside of drawers, the spongy material underneath a carpet, and the insulation in a wall. This residue can build up over time and be detected years after smoking has stopped.
Like the water evaporating from a wet sponge, thirdhand smoke can be later released back into the air or picked up by touching, leading to exposure long after tobacco was smoked. Cotton pillows: A novel field method for assessment of thirdhand smoke pollution. Environ Res. When smokers quit: exposure to nicotine and carcinogens persists from thirdhand smoke pollution. Tob Control.
Thirdhand cigarette smoke in an experimental chamber: evidence of surface deposition of nicotine, nitrosamines and polycyclic aromatic hydrocarbons and de novo formation of NNK. Have more questions about Thirdhand Smoke? Learn more here. Get the latest thirdhand smoke news and research delivered straight to your inbox, or follow us on social media:. The chemicals in thirdhand smoke can affect the normal function of many parts of our body. Part of the California Thirdhand Smoke Research Consortium and funded by the California Tobacco Related Disease Research Program , the Thirdhand Smoke Resource Center shares information and resources to protect Californians from exposure to persistent and toxic residue left behind by tobacco, electronic cigarette, and marijuana use.
Learn more about your options at no-smoke. Even once a person who smokes has moved out, the carpets and drapes still smell like smoke, and walls and ceilings may have a yellowish stain from nicotine and tar. The smoke odor may also increase when heaters or air conditioning is turned on. Does this sound familiar? These are all indicators of thirdhand smoke, which is the residual contamination that smoke from cigarettes , cigars, and other tobacco products leaves behind.
This residue builds up on surfaces and furnishings and lingers long after smoking stops. Thirdhand smoke may seem like only an offensive, stale smell, but it is also indicates the presence of tobacco toxins that harms the health of residents.
Tobacco smoke is made up of gases and particulates, including carcinogens and heavy metals, like arsenic, lead, and cyanide. Sticky, toxic substances, like nicotine and tar, cling to walls and ceilings. Gases are absorbed into carpets, draperies, and other surfaces.
Tobacco residue is present in dust and on surfaces throughout places where smoking has occurred. Nicotine in thirdhand smoke forms carcinogens cancer-causing substances , which are then inhaled, absorbed or ingested by tenants.
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