11. There exists scientific evidence that exposure to passive smoke does not cause these things. 12. Residential exposure to radon gas, for example, has similar cancer risks as passive smoking . 13. Just a half-hour of passive smoking can increase a nonsmoker's risk of heart disease. 14. Cotinine also permits the measurement of exposure to second-hand smoke ( passive smoking ). 15. Why do scientific reviews of the health effects of passive smoking sometimes reach contradictory conclusions? 16. Passive smoking causes about 3, 400 deaths from lung cancer each year in the USA.17. Because no hearing was held, the federation did not rule on Moore's passive smoking defense. 18. Passive smoke is the third-leading cause of preventable death.19. McVie said research proved the health of non-smokers was put at risk by passive smoking . 20. He also coined the term " passive smoking ".
