States that various gas techniques seem to be technically and economically of interest to ensure the heating of swimming pools: condensation heaters, the production of instant ECS, low temperature heated flooring, etc. Equally, cogeneration offers wide possibilities. The article gives an introductory note on each of these technologies.
Data has been obtained on the radon concentration in natural gas supplied to several metropolitan areas in the United States. The average value of 20pCi/l was selected to estimate the contribution of this source of natural radioactivity to doses from radon daughters received by individuals in homes. Radon daughter concentrations in the home atmosphere were calculated by use of computer programs for an 800 cu.ft. house in which 27 cu.ft. of gas per day was used for cooking in an unvented kitchen range.
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