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Distribution of radon-222 in natural gas and its origin mechanism analysis

The existence of radioactive gaseous radon in natural gas puts a hazardous impact on human health and gas production equipment. A review of the literature on radon concentrations in natural gas produced from gas reservoirs in China and the other countries have been studied. Radon is a decay product from 238U. Massive fault systems and fracture zones appear to play a significant role in radon concentrations in natural gas. Gas recovered from reservoirs with higher than average natural 238U contain higher than average levels of 222Rn.