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  • Title: Effectiveness of cigarette filter tips for reducing cadmium in relation to other mainstream smoke constituents.
    Author: Bache CA, Lisk DJ, Shane BS, Hoffmann D, Adams JD.
    Journal: Drug Chem Toxicol; 1987; 10(3-4):189-93. PubMed ID: 3428181.
    Abstract:
    The effectiveness of filter tips for reducing cadmium, tar, nicotine, carbon monoxide and carbon dioxide in cigarettes was studied. The cigarettes were made from tobacco grown on municipal sewage sludge-amended soil and were therefore high in cadmium. When machine-smoked, filter tips did not result in a significant reduction of cadmium deposited on Cambridge filters. This may indicate that a considerable fraction of cadmium is present in the vapor phase of the smoke and therefore not reduced to the same extent as the tar by certain filters. Nicotine and carbon monoxide were reduced to a lesser extent than tar. This indicates that the filter tip has influenced the combustion of the tobacco column during smoking.
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