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Table 1 Shows average PM2.5 mean concentrations, average AUC PM 2.5 and tar- yield for 3R4F reference cigarettes, P&S cigarettes and Virginia cigarettes without filter

From: Tobacco smoke particles and indoor air quality (ToPIQ-II) – a modified study protocol and first results

Tobacco product

C mean PM2.5 (μg/m 3 )

AUC PM2.5 (μg/m 3 × sec)

Combustion time (seconds)

Tar yield per cigarette (mg)

3R4F reference

1,725 ± 244

527,644 ± 74,812

300

9,5

P&S

1,982 ± 252

606,171 ± 77,311

300

10

Virginia

1,525 ± 193

464,788 ± 59,417

300

10

  1. PM concentrations of the P&S brand cigarette exceeded the reference cigarette values significantly (p < 0,05) (Figures 4 and 5). For all parameters and brands, individual values were statistically distributed according to a Gaussian distribution. Surprisingly, PM values of Virginia without filter were significantly lower than the corresponding values of 3R4F research cigarettes and P&S cigarettes (p < 0,05). This means that the mere existence of cigarette filters might have less influence on PM release than other aspects of cigarette designs, such as tobacco mixture, cellulose content and other additives that influence burning-characteristics.
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Journal of Occupational Medicine and Toxicology

ISSN: 1745-6673