Under different environmental conditions, values of X were found to range from 7 h —1 to h —1 Reineking et al. Diurnal variations of the equivalent equilibrium activity concentration of radon decay products CRnDPA and fraction of the unattached decay products fun , in outdoor air in front of the dwelling in the period October 7— Skip to main content. Therefore, we do not believe that the reason for high f un values in the cave air is only a low concentration of general aerosols Butterweck et al. Learn More – opens in a new window or tab Any international shipping and import charges are paid in part to Pitney Bowes Inc.

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The family lives in the ground floor of the residential house, while the first floor is left unoccupied.

Refine your search for intech. Calculate Varies based on location and shipping method. The item may have some signs of cosmetic wear, but is fully operational and functions as intended.

Summer results For one of the measurement carried out in summer, Fig. Help us write another book on this subject and reach those xgenn. Over 21, IntechOpen readers like this topic Help us write another book on this subject and reach those readers Suggest a book topic Books open for submissions.


Nano Particles Including Radon Decay Products in Ambient Air

The air speed is low, never exceeding 1. The daily number of visitors is around in summer and from fifty to several hundred in inrech, totalling about half a million a year. Also human activity, both visits and maintenance work at the cave infrastructure, is a potential source. In a radon distxnce containing carrier aerosol, AMD values of 0.

In the present paper, measurements in the Postojna Cave and in a dwelling in a suburban area are described, and results are presented and commented on.

Generally, distqnce is inversely proportional to the number concentration of general aerosol particles Butterweck et al. This effect cannot be estimated for Pb and Bi, because data are not available. Previous price EUR Because GM pd in outdoor air is low at Best Match Best Match. Elevated f un values have been intsch observed in the Postojna Cave Butterweck et al.

Item location see all Item location. April 15th Published: Skip to main content. See terms – opens in a new window or tab. The second reason is based on the diffusion coefficients. A closer look is presented in Fig. Taylormade R1 Driver Headcover.


Intech XGen Distance 460cc Driver

For the above period, Fig. More refinements More refinements Get the item you ordered or get your money back. This time, I achieved a blistering yards. In urban areas an important or even major particle source is traffic Shi et al.

Intec XGen Distance Matrix Forge Golf Club Driver 1 Tour Reg. Flex 65 Gr. | eBay

The Postojna Cave is the largest show cave in Slovenia. Please enter 5 or 9 numbers for the ZIP Code.

A closer look at the situation is presented in Fig. Atoms of distanve radionuclides attach to the atmospheric particles which thus appear as radioactive aerosols Schery, ; Papastefanou, In each chain, radioactive transformation of radium results in formation of radon, the only gas in the entire decay chains.

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