Bhutan intends to be the first tobacco-free country by 2004. In 2003 12 out of 13 districts were self-declared tobacco-free. Bhutan's campaign has been based on religious and health education.
Cotidine (the derivative of nicotine in the body) levels in the urine of non-smokers in the USA dropped 75 percent in nonsmokers in the period 1991 to 2001.