Antismokers claim that secondary smoke is a Class A Carcinogen.
This claim would seem to be almost irrefutable. The designation of ?Class A Carcinogen? is established by a respected international body, the International Agency for Research on Cancer (IARC), and any element designated as Class A by them is, by a matter of definition, Class A.
However, I feel that this claim is another example of what Dr. Kessler would say is "an accurate, but not true" statement. A review of IARC's 9th Report on Carcinogens reveals that the basis for that definition was drawn largely from the equivocal studies reviewed in Appendix A, a far weaker, indeed, uniquely weaker standard than IARC has applied to any other element it has identified as a Class A carcinogen.
Almost 95% of the substance of secondary smoke consists of such elements as oxygen, nitrogen, carbon dioxide, water, carbon monoxide, and other elements that bear no relationship at all to cancer. The total weight of the six Class A carcinogens in ETS is less than one half of 1/1000th of a gram per cigarette; less than 1/1000th that given off by a standard alcoholic drink in an hour. These are the elements that, in sufficient quantities, could cause cancer, not the entirety of secondary smoke itself.
If one were to examine the smoke from candles, the reflected wavelengths of light from a full moon, the dust in the air at a horse show, or the impurities in an ordinary glass of tap water, and apply the same sort of reasoning and examination to these, one would be forced to classify all of them as Class A Carcinogens. In these other cases though, it is correctly recognized that it is the individual components, and the concentrations of those components, which determine carcinogenicity. Only in the case of tobacco smoke does the IARC abandon such scientific determination in order to classify an overall compound of elements as carcinogenic with the specific goal of mass behavior modification.
Antismokers claim that secondary smoke as a whole is a Class A Carcinogen, without any regard or concern for concentrations of exposure.
I call this claim a lie.
From the Truth is a lie. Sorry, no good at links