Cigarette smoke, particle size distribution

The change in the particle size distribution function with time for coagulating cigarette smoke has been measured by Keith and Derrick (1960), Smoke issuing from a cigarette was rapidly mixed with clean air, and the mixture was introduced into a 12-liter flask... 

Ingebrethsen, B.J. Evolution of the particle size distribution of mainstream cigarette smoke during a puff Aerosol Sci. Tech. 5 (1986) 423 33. 

Ingebrethsen, B.J. and S.B. Sears Particle size distribution of sidestream cigarette smoke 39th Tobacco Chemists Research Conference, Program Booklet and Abstracts, Vol. 39, Paper No. 47, 1985, p. 25. Ingebrethsen, B.J. and S.B. Sears Particle evaporation of sidestream cigarette smoke in a stirred tank J. Colloid Interface Sci. 131 (1990) 526-536. 

Jones, R.T., W.G.D. Lugton, S.R. Massey, and R.B. Richardson The distribution with respect to smoke particle size of dotriacontane, hexadecane and decachlo-robiphenyl added to cigarettes Beitr. Tabakforsch. 8 (1975) 89-92. 

Okada, T., Y. Ishizu, and K. Matsunuma Determination of particle-size distribution and concentration of cigarette smoke by a light-scattering method Beitr. Tabakforsch. 

Holmes, J. C., J. E. Hardcastle and R. I. Mitchell, The determination of particle size and electric charge distribution in cigarette smoke, Tobacco Science, 3 148-153 (1959). 

Cd in air occurs in particulate form, and thus is in fact a dry aerosol, comparable with smoke of a cigarette. It is clear from this example that the distribution of a dry aerosol in a volume of air will be far less homogeneous than in case of a wet aerosol or gas. Moreover, a tendency to deposition occurs, which depends on the particle size. Cd-A can thus be measured directly as the concentration in air or as deposit (Herber. 1993). 

Cd in air (Cd-A) occurs in particulate form and is in fact a dry aerosol, comparable to cigarette smoke. It is clear from this example that the distribution of a dry aerosol in a volume of air will be far less homogeneous than a wet aerosol or gas. Moreover, a tendency to deposition occurs, which depends on the particle size. Cd-A can thus be assessed directly as the concentration in air or as deposit. In cities Cd-A ranged from 0.006 to 0.36 p-g/m in the USA, from 0.002 to 0.05 p,g/m in Europe (both annual mean values), and from 0.01 to 0.053 p,g/m in Japan (mean of several months). In remote areas these values are a factor of 10-1000 lower, whereas in polluted areas much higher values may be found [9]. An important source of Cd in homes can be floor dust. The presence of Cd in floor dust presents a possible risk to young children who accidentally ingest dust by hand-to-mouth activity [4]. 

Fig. 5.11. Relative activity size distribution of the radon decay product aerosols in air containing a high particle concentration of combustion aerosol from diesel engines and cigarette smoke. —, mine air (working + diesel engine) AMDa = 201 nm. - - room air (+ cigarette smoke) AMDa = 270 nm.

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