Final report, DOE-EPsCoR Grant No. DE-FG02-99ER45754: Removal of organic contaminants from water via spray processes

Borgerding, Anthony J.

doi:10.2172/771285

Cited by 1 publication

(3 citation statements)

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“…33 However, different patterns of MSS adsorption were observed in the filter of the 3R4F compared to little cigars after smoking under ISO conditions (Figures SI6–8 in the Supporting Information). Ventilation holes were found in the filter paper of the 3R4F, whereas no holes were detected in any of the filter papers of the selected little cigars (Figure SI5).…”

Section: Resultsmentioning

confidence: 98%

“…5,10,18–20 Previous studies have examined the effect of different physical properties and smoking regimens on the levels and toxicity of the MSS HPHCs across different brands of cigarettes. 3,10,19,33,42,43,45,46 To understand how these variables in cigarettes are different from little cigars, we compared the physical properties of the most popular little cigars 27,28 with the 3R4F. Our results showed that each of the selected little cigars are longer (~15 mm), and therefore, hold more tobacco mass (100–200 mg), than the 3R4F.…”

Section: Discussionmentioning

confidence: 95%

“…Filters made of cellulose acetate should dissolve in acetone, whereas filters made of paper dissolve in sulfuric acid. 33 …”

Section: Methodsmentioning

confidence: 99%

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Little Cigars vs 3R4F Cigarette: Physical Properties and HPHC Yields

et al. 2017

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Objective Our objective was to characterize physical properties and semivolatile harmful and potentially harmful constituent yields in the mainstream smoke (MSS) of 4 popular little cigars compared to the 3R4F reference cigarette. Methods We used the ISO and Canadian Intense Regimen protocols to generate MSS for Cheyenne (Full Flavor and Menthol) and Swisher Sweets (Original and Sweet Cherry) little cigars; and the 3R4F. We examined physical properties such as length, tobacco filler mass, pressure drop, and ventilation for each product. Nicotine, benzo[a]pyrene, and tobacco-specific nitrosamine (TSNA) yields were determined in the MSS. Results Little cigars were longer (~15mm), contained more tobacco filler (100–200 mg), and had a higher pressure drop (~1.3X) compared to the 3R4F. Ventilation holes were found only on the filter paper of the 3R4F. Nicotine transmitted to the MSS was similar for all products under the intense smoking protocol. The highest yields of TSNAs and benzo(a)pyrene were measured for the little cigars. Conclusions Little cigars may deliver similar levels of nicotine but higher levels of carcinogens to the MSS compared to cigarettes. Thus, previous reports on the toxicity of tobacco smoke based on cigarettes might not apply to little cigar products.

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Section: Resultsmentioning

confidence: 98%