Researchers have warned smokers that their habit inflicts long-term damage on their loved-ones too.
The findings of a new study have revealed cigarette smoke stays in homes for more than six months after smoking.
According to the findings, even when one quits smoking, carcinogens from tobacco remain embedded in sofas, walls and carpets long after.
The study which was conducted by researchers from the San Diego State University recruited 90 smokers who were about to quit smoking.
The researchers periodically visited their homes over a period of six months and took swabs of the walls and doors, dust samples from the floor as well as urine and their hand-wipe samples to look for the presence of any tobacco-related chemicals such as nicotine, cotinine and the potent lung carcinogen known as NNK.
The results showed the levels of nicotine and NNK in the dust samples remained virtually unchanged for the entire six months.
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Other tests conducted on people living in the homes showed little to no reduction in their levels of carcinogenic compounds for the duration of the study.
The study therefore concludes tobacco smoke does not simply disappear but builds up a reservoir of chemicals that leaves a long and toxic legacy of tobacco use.
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