Cadmium and nickel in smoke of cigarettes prepared from tobacco cultured on municipal sludge‐amended soil

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Abstract
Cigarettes prepared from tobacco grown on municipal sludge-amended soil were smoked, and the mainstream particulates, and gaseous fractions were analyzed for total Cd and Ni content. Sludge-grown and control (soil-grown) tobaccos contained, respectively, 67.4 and 3.18 ppm Cd, and 19.4 and 1.29 ppm Ni. The quantities of Cd (.mu.g/cigarette) found in the mainstream particulate and gaseous fractions were, respectively, 6.67 and 0.04 for the sludge-grown, and 0.21 and 0.03 for the control treatments. The quantities of Ni (.mu.g/cigarette) found in the mainstream particulates and gaseous fractions were, respectively, 0.11 and 0.07 for the sludge-grown, and 0.01 and 0.01 for the control treatments. The potential public health implications of these results and modifying factors were discussed.