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Thirdhand smoke contains high levels of toxins, including cancer-causing chemicals

never-smokers) Larynx cancer: RR 6.98 Oral cavity/esophagus cancer: RR 3.433.57 Bladder cancer: RR 2.58 (all smokers), 3.47 (current) Kidney cancer: RR 1.31 Pancreatic cancer: RR 1.371.49 Stomach cancer: RR 1.53 (current), 1.30 (former smokers) Colorectal cancer: RR 1.141.17 Breast cancer: RR 1.141.24 (especially with early smoking initiation) Smoking causes DNA mutations and epigenetic changes that lead to cancer

Crack, also known as freebase cocaine, is made by mixing powder cocaine with baking soda, forming small, rock-like crystals

Theres some evidence that e-cigarette aerosol can contain harmful chemicals, and the DOT wants to ensure that all passengers are able to avoid any potential harm within the confined space of an airplane