The Surgeon General's Report on Involuntary Exposure to Tobacco Smoke (2006)
The US Surgeon General released a report in 2006 called The Health Consequences of Involuntary Exposure to Tobacco Smoke which explains all the known health risks of SHS and states, "there is no known safe level of exposure to SHS."
2009 Institute of Medicine Report
The Institute of Medicine released a report in October, 2009, Secondhand Smoke Exposure and Cardiovascular Effects: Making Sense of the Evidence. This report provides a comprehensive review of the science on the relationship between secondhand smoke exposure and heart attack. The report was requested by CDC, but the review was conducted independently by the Institute of Medicine.
2009 International Agency for Research on Cancer Report
The International Agency for Research on Cancer (IARC) released a new report in September, 2009, entitled "Evaluating the Effectiveness of Smoke-free Policies" which concluded that smoking bans in public places are associated with a rapid and substantial reduction in heart attacks, and these benefits increase over time.
The CDC's Save Lives, Save Money - Make Your Business Smoke-Free brochure provides information on exposure to secondhand smoke in the workplace and the benefits to employers once a smoke-free workplace has been implemented.