Control of Radon in Houses: Recommendations of the National by National Council on Radiation Protection and Measurements

By National Council on Radiation Protection and Measurements

Show description

Read or Download Control of Radon in Houses: Recommendations of the National Council on Radiation Protection and Measurements (Ncrp Report ; No. 103) PDF

Similar textbooks books

The Longleaf Pine Ecosystem: Ecology, Silviculture, and Restoration

The longleaf pine environment, as soon as probably the most huge ecosystems in North the United States, is now one of the such a lot threatened. during the last few centuries, land clearing, logging, fireplace suppression, and the encroachment of extra competitive vegetation have resulted in an overpowering reduce within the ecosystem’s dimension, to nearly 2.

The certified HACCP auditor handbook

This instruction manual is meant to function a baseline of danger research severe regulate element (HACCP) wisdom for caliber auditors. HACCP is greater than simply failure mode and impression research (FMEA) for nutrition: it's a product safeguard administration procedure that advanced and matured within the advertisement foodstuff processing permitting meals processors to take a proactive method of hinder foodborne illnesses.

Extra resources for Control of Radon in Houses: Recommendations of the National Council on Radiation Protection and Measurements (Ncrp Report ; No. 103)

Example text

The amount of air that can be delivered by this means is limited by the capacity of the heating/cooling system to accept inflow without upsetting temperature control. A separate fan is not always required in a building if it has a forced air system. 3 INCREASED AIR CIRCULATION 1 43 not used, the circulating fan is arranged to run a t low speed continually, going to full speed when the thermostat calls for heating or cooling, and an air supply duct is connected to the return air duct close to the fan.

The entry of soil gas from exposed soil in unpaved crawl spaces can also be reduced by placing a perforated collection pipe network over the soil and covering it with an air barrier. The barriers can be concrete, plastic sheet, or even a sprayed and formed-in-place membrane material. The barrier does not have to be completely airtight, as long as the openings are small enough to allow a small fan to produce the required exhaust rate. The advantages of this approach, over ventilation of the space itself, are that the amount of air withdrawn from the building is small, and the impact on energy costs is negligible.

There are several types of air cleaning methods that have been tested for the removal of radon decay products under conditions which could be considered representative of those in private houses. These methods include electrostatic precipitation, high efficiency filtration, and unipolar space charging. and Canadian houses with forced air heating systems to remove allergy-causing spores and dust and particulates, including those from tobacco smoking. 1 Electrostatic Precipitation Reports of working level reductions by the use of electrostatic precipitators (electronic air cleaners) and the conditions under which these reductions were achieved are scarce, even though there have been some attempts to apply this method in uranium mines (Swindle, 1971 and Cooper, 1973).

Download PDF sample

Rated 4.61 of 5 – based on 26 votes