Harvard study shows rise in nicotine content in cigarettes

A study by the Harvard School of Public Health indicates that nicotine content in cigarettes rose by approximately 11 percent between 1998 and 2005. From the Thanhniennews.com article:

Nicotine yields rose in cigarettes of each of the four major manufacturers and across all major cigarette market categories – from mentholated and non-mentholated to full-flavored, light and ultralight, the study said.

Tobacco industry officials were not immediately available to comment. Phillip Morris, part of Altria Group Inc and the largest cigarette maker, has said nicotine levels fluctuate from year to year but there has been no steady increase.

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