Abstract
This study dealt with measuring the concentrations ofradioactive radon gas emitted from (35) water samples takenfrom selected areas of the marshes of Basra Governorate –southern Iraq, to determine the concentrations of the radon gas222Rn emitted from the selected and newborn samples of theradioactive element Radium 226R resulting from the decay ofisotope uranium 238U in (July) 2020. Fast electronic technologyhas been adopted by the RAD7 device. The results showed thatthe highest concentration of radon gas in water was 15.531 ±1.067Bq. L-1in the sample from am alsanadiq of funds in themarshes of Basra city, and the lowest concentration rate was0.034±0.002 Bq. L-1 in a water sample from Qurna among thestudied samples. The effective annual dose of water wascalculated at the highest concentration rate and found to be0.843mSv.y-1 and this value is higher than the internationallyrecommended limits by specialized international organizationsof 0.1 mSv.y-1. In general, it was found that the radon gasconcentrations in some of the water samples selected from themarshes of Basra Governorate–southern Iraq within the studywere higher than the permissible values of 11.1 Bq. L-1 accordingto the US Environmental Protection Agency (EPA) and thatthey may pose a risk to the health of the population in thoseareas in If no necessary action is taken.
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