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The harm caused by cigarette filters is compounded by the toxic chemicals from cigarette smoke that they leach into the environment when discarded

The study was published in the American Journal of Preventive Medicine, external

First, the experimental conditions under which the present investigations were carried out, coupled with the part-per-billion (ppb) sensitivity of the GC-MS equipment used here, allow one to identify many (non-volatile) compounds, many of which are present at only ultra-low concentrations in the cigarette smoke/aerosol

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Gastrointestinal Endoscopy Clinics of North America [Internet]