title: Toxic metal concentrations in mainstream smoke from cigarettes available in the USA.
abstract: Public health officials and leaders of 168 nations have signaled their concern regarding the health and economic impacts of smoking by becoming signatory parties to the World Health Organization Framework Convention on Tobacco Control (FCTC). One of FCTC's purposes is to help achieve meaningful regulation for tobacco products in order to decrease the exposure to harmful and potentially harmful constituents (HPHCs) delivered to users and those who are exposed to secondhand smoke. Determining baseline delivery ranges for HPHCs in modern commercial tobacco products is crucial information regulators could use to make informed decisions. Establishing mainstream smoke delivery concentration ranges for toxic metals was conducted through analyses of total particulate matter (TPM) collected with smoking machines using standard smoking regimens. We developed a rapid analytical method with microwave digestion of TPM samples obtained with smoking machines using electrostatic precipitation under the ISO and Intense smoking regimens. Digested samples are analyzed for chromium, manganese, cobalt, nickel, arsenic, cadmium and lead using inductively coupled plasma-mass spectrometry. This method provides data obtained using the ISO smoking regimen for comparability with previous studies as well as an Intense smoking regimen that represents deliveries that fall within the range of human exposure levels to toxic metals.
authors.affiliation: 1Division of Laboratory Sciences, Tobacco and Volatiles Branch, Centers for Disease Control and Prevention, National Center for Environmental Health, 4770 Buford Hwy NE Mail Stop F44, Atlanta, GA 30341-3717, USA.
authors.forename: R Steven
authors.initials: RS
authors.lastname: Pappas
authors.forename: Mark R
authors.initials: MR
authors.lastname: Fresquez
authors.forename: Naudia
authors.initials: N
authors.lastname: Martone
authors.forename: Clifford H
authors.initials: CH
authors.lastname: Watson
mesh_terms: D001151:Arsenic / Q000032:analysis* / Q000633:toxicity; D002138:Calibration; D057230:Limit of Detection; D019216:Metals, Heavy / Q000032:analysis* / Q000633:toxicity; D015999:Multivariate Analysis; D052638:Particulate Matter / Q000032:analysis*; D015203:Reproducibility of Results; D013054:Spectrophotometry, Atomic / Q000295:instrumentation / Q000379:methods; D062789:Tobacco Products / Q000032:analysis*; D014028:Tobacco Smoke Pollution / Q000032:analysis*
chemical_list: D019216:Metals, Heavy; D052638:Particulate Matter; D014028:Tobacco Smoke Pollution; D001151:Arsenic