What is Cigarette Tar? Smoking Facts About the Harmful Effects of Tobacco Combustion
Cigarette tar is one of the main harmful effects of tobacco
combustion that is incomplete.
Inhaling tar is one of the dangers of cigarette smoking as it
contains many of the carcinogenic ingredients in cigarettes.
The Health Consequences of Smoking: A Report of the Surgeon General
May 27, 2004
Major conclusion #3
"3.Smoking cigarettes with lower machine-measured yields of tar and nicotine provides no clear benefit
to health."
p 6 Executive Summary
Harmful Effects of Tobacco Combustion
Cigarette manufacturers make their cigarettes so that the tobacco will smolder and not light up like a bon fire.
They keep the tobacco moisture level high enough, and wrap the cigarette tightly enough to keep the
tobacco smoldering rather than burning with a large flame.
The result is cigarette tar.
Composed of the solid matter that is not completely burned but carried in the smoke, the tar
carries most of the chemicals in cigarettes that cause cellular damage and lead to cancer and tumour formation.
At the higher temperatures in a cigarette the tar is melted
and almost "dissolved" in the smoke, but in your body it becomes solid again and causes a lot of the characteristic staining
such as nicotine stains on the fingers of heavy smokers or
yellow smoker's teeth.
Smoking Facts About Cigarette Tar
burning of tobacco generates more than 150 billion tar particles per cubic inch.
a good drag on a cigarette will extract almost 90 percent of the particulate matter and gases which
go straight to your lungs with a good inhale.
lower tar brands have not been shown to result in fewer harmful smoking effects.
It is the hot tar that burns the respiratory passage ways and plugs up the lungs causing
emphysema, chronic bronchitis and lung cancer
which are specific smoking related diseases.
Statement about
cigarette tar from the Imperial Tobacco Canada website
that explains the various ingredients in their cigarettes:
"Tar is a complex mixture that includes substances which, in sufficient quantities, are thought capable of initiating and promoting cancer."
(italics are mine)
Smoking Facts
Imperial tobacco states that tar is thought to be capable of causing cancer, yet the
International Agency for Research on Cancer (IARC)
lists tobacco smoke as a group 1 carcinogen.
The purpose of the information provided here is to help you cooperate with your doctor and other
health practitioners. It is not intended to take the place of medical advice and you are encouraged to
discuss health concerns with your physician or a professional health care provider who is
familiar with you and your unique personal health context.