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Thirdhand Smoke Exposure is Linked to Increased Tumor Development

Researchers at the Lawrence Berkeley National Laboratory investigated the impact of thirdhand tobacco smoke (THS) exposure on the development of tumors in mice.  To reflect the genetic diversity of humans, they used Collaborative Cross (CC) mice. The researchers exposed the CC mice to thirdhand smoke and observed them for tumor development.

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Why focus on exposure to thirdhand tobacco smoke and not exposure to auto exhaust or industrial pollution?

There are many pollutants that can contaminate our environments. Presently, vehicle emissions and industrial air pollutants receive much-needed attention from policy makers and the public. But there remains a lot of important work to be done to protect environments from other forms of pollution, such as pollutants from tobacco smoke. A focus on tobacco smoke exposure draws attention to a source of pollution that is the result of preventable activities that can be easily changed or eliminated.

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