- From the National Cancer Institute. Exposure measurement and prevalence, developmental toxicity (prenatal and postnatal), reproductive effects, respiratory health effects, carcinogenic effects, cardiovascular effects.
Environmental Tobacco Smoke - - American Heart Association factsheet that states, "secondhand smoke is a major cause of cardiovascular disease and death which is preventable..
How Dangerous is Second-Hand Smoke? - - The immediate and long-term health effects of exposure to second-hand smoke; links to other sites for information on passive smoking, indoor air quality, and related health problems.
Protecting Nonsmokers From Secondhand Smoke - - A fact sheet about protecting nonsmokers from secondhand smoke, produced by Americans for Nonsmokers' Rights. All facts presented with citations to research literature.
The Truth About Secondhand Smoke - - Report on the science, the industry's attack on the science, and the practical significance of secondhand smoke, from GASP of Colorado.