Particles semivolatile organics

Mumford JL, Williams RW, Walsh DB, et al. 1991. Indoor air pollutants from unvented kerosene heater emissions in mobile homes Studies on particles, semivolatile organics, carbon monoxide, and mutagenicity. Environ Sci Technol 25(10) 1732-1738. 

Mobile Homes Studies on Particles, Semivolatile Organics, Carbon Monoxide, and Mutagenicity, Environ. Sci. Technol., 25, 1732-1738(1991). 

Bidleman T.F., Foreman, W.T. (1987) vapor-particle partitioning of semivolatile organic compounds. In Sources, and Fates of Aquatic Pollutants. Hites, R.A., Eisenreich, S.J., Editors, Advances in Chemistry Series 216, American Chemical Society, Washington, D.C. 

Tsai, W., Cohen, Y., Sakugawa, H., Kaplan, I.R. (1991) Dynamic partitioning of semivolatile organics in gas/particle/rain phases during rain scavenging. Environ. Sci. Technol. 25, 2012-2023. 

The yield of secondary organic aerosol depends on the organic particle mass concentration because of the gas-particle partioning of the semivolatile organic products (see later). Thus, Odum et al. (1996) showed that the yield of secondary organic aerosol, Y, is given by... 

In Eq. (LL), M is the concentration of the condensed-phase organic (in igm 3) available to absorb semivolatile organic products, ( is a constant that relates the concentration of the ith secondary organic aerosol component formed, C, to the amount of parent precursor organic reacted i.e., C, (ng m ) 1000a, A(parent organic in p,g m 3), and Kom i is the gas-particle partioning coefficient for the ith component. As discussed in more detail in Section D, Kim j is in effect an equilibrium constant between the condensed- and gas-phase concentrations. 

Pankow, J. F., J. M. E. Storey, and H. Yamasaki, Effects of Relative Humidity on Gas Particle Partitioning of Semivolatile Organic Compounds to Urban Particulate Matter, Environ. Sci. Technol., 27, 2220-2226 (1993). 

Liang, C., J. F. Kankow, J. R. Odum, and J. H. Seinfeld, Gas/particle partitioning of semivolatile organic compounds to model inorganic, organic, and ambient smog aerosols , Environ. Sci. Technol., 31, 3086-3092 (1997). 

Lane, D.A., Johnson, N.D., Barton, S.C., Thomas, G.H.S. and Schroeder, W.H. (1988) Development and evaluation of a novel gas and particle sampler for semivolatile organic compounds in ambient air. Environmental Science and Technology, 22, 941-7. 

Bidleman, T.F., W.N. Billings, and W.T. Foreman. 1986. Vapor-particle partitioning of semivolatile organic compounds estimates from field collections. Environ. Sci. Technol. 20 1038-1043. 

Gundel, L.A. and D.A. Lane. 1999. Sorbent-coated diffusion denuders for direct measurement of gas/particle partition by semivolatile organic compounds. In Lane, D.A., Ed., Gas and Particle Measurements of Atmospheric Organic Compounds. Gordon and Breach Science Publishers, Amsterdam, pp. 287-332. 

Poster, D.L., R.M. Hoff, and J.E. Baker. 1995. Measurement of the particle size distributions of semivolatile organic contaminants in the atmosphere. Environ. Sci. Technol. 29 1990-1997. 

Storey, J.M.E., W. Luo, L.M. Isabelle, and J.F. Pankow. 1995. Gas-particle partitioning of semivolatile organic compounds to model atmospheric solid surfaces as a function of relative humidity. 1. Clean quartz. Environ. Sci. Technol. 29 2420-2428. 

Appropriate SPE sorbent selection is critical to obtaining efficient SPE recovery of semivolatile organics from liquids. Henry [58] notes that an SPE sorbent must be able to sorb rapidly and reproducibly, defined quantities of sample components of interest. Fritz [73] states that successful SPE has two major requirements (1) a high, reproducible percentage of the analytical solutes must be taken up by the solid extractant and (2) the solutes must then be easily and completely eluted from the solid particles. The sorption process must be reversible. In addition to reversible sorption, SPE sorbents should be porous with large surface areas, be free of leachable impurities, exhibit stability toward the sample matrix and the elution solvents, and have good surface contact with the sample solution [68,73],... 

Several studies have identified house dust as an important route of exposure for many chemical contaminants (Butte Heinzow, 2002 USEPA, 2004b). House dust is a sink for semivolatile organic compounds and particle-bound matter (Butte Heinzow, 2002). House dust and compounds adsorbed to it may enter the body by inhalation of suspended and resuspended particles, through non-... 

According to a model of gas/particle partitioning of semivolatile organic compounds in the atmosphere, bromotrichloromethane, which has a measured vapor pressure of 39mmHg at 25°C, is expected to exist solely as a vapor in the ambient atmosphere. Based on bromotrichloromethane s structural similarity to bromotrifluoromethane, it is expected to slowly degrade in the atmosphere by reaction with photochemically produced hydroxyl radicals the half-life for bromotrichloromethane s reaction in air is estimated to be greater than 44 years. Photolysis may occur based on bromotrichloromethane s structural similarity to other halogenated methane compounds but not at an environmentally relevant rate. 

Very volatile (gaseous) organic compounds Volatile organic compounds Semivolatile organic compounds Organic compounds associated with particulate matter, particle bound organic compounds... 

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