en Radiation Biology Radiation Biology گزارش کوتاه Short Report <div style="text-align: justify;"><span style="font-size:10pt"><span style="text-justify:newspaper"><span style="text-kashida-space:50%"><span style="line-height:119%"><span style="font-family:Calibri"><span style="color:black"><span lang="en-US" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="color:#1f497d"><span style="font-style:italic"><span style="font-weight:bold"><span style="language:en-US">Background</span></span></span></span></span></span><span lang="en-US" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="color:#1f497d"><span style="font-weight:bold"><span style="language:en-US">:</span></span></span></span></span> <span lang="en-GB" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="color:black"><span style="language:en-GB">Inhaling radon is the most common way that humans are exposed to this radioactive gas. Radon can seep into buildings and homes, where it can accumulate to levels that can be harmful to human health. According to the World Health Organization, radon is the second most common cause of lung cancer. </span></span></span></span><span lang="en-GB" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="color:#1f497d"><span style="font-style:italic"><span style="font-weight:bold"><span style="language:en-GB">Materials and Methods: </span></span></span></span></span></span><span lang="en-GB" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="color:black"><span style="language:en-GB">The radon concentrations, effective dosage and lung dose were assessed in construction building materials of sand, cement, and bricks in Al-Shatra City, Dhi-Qar Governorate, Iraq using solid state nuclear track detector CR-39. </span></span></span></span><span lang="en-GB" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="color:#1f497d"><span style="font-style:italic"><span style="font-weight:bold"><span style="language:en-GB">Results: </span></span></span></span></span></span><span lang="en-GB" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="color:black"><span style="language:en-GB">The average radon concentrations in sand were 92.766 &plusmn; 46.518 Bqm</span></span></span></span><span lang="en-GB" style="font-size:5.9939pt"><span style="font-family:Calibri"><span style="color:black"><span style="language:en-GB">^-3</span></span></span></span><span lang="en-GB" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="color:black"><span style="language:en-GB">, while in bricks was 198.256 &plusmn; 87.64 Bqm</span></span></span></span><span lang="en-GB" style="font-size:5.9939pt"><span style="font-family:Calibri"><span style="color:black"><span style="language:en-GB">^-3</span></span></span></span><span lang="en-GB" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="color:black"><span style="language:en-GB"> and cement was 69.897&plusmn;46.903 Bqm</span></span></span></span><span lang="en-GB" style="font-size:5.9939pt"><span style="font-family:Calibri"><span style="color:black"><span style="language:en-GB">^-3</span></span></span></span><span lang="en-GB" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="color:black"><span style="language:en-GB">. According to this study, there was difference in the concentrations of radon, and the largest amount was found in the bricks.&nbsp; An annual effective dose was 2.34 mSvy</span></span></span></span><span lang="en-GB" style="font-size:5.9939pt"><span style="font-family:Calibri"><span style="color:black"><span style="language:en-GB">^-1</span></span></span></span><span lang="en-GB" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="color:black"><span style="language:en-GB">, 4.99 mSvy^-1 and 1.76 mSvy</span></span></span></span><span lang="en-GB" style="font-size:5.9939pt"><span style="font-family:Calibri"><span style="color:black"><span style="language:en-GB">^-1</span></span></span></span><span lang="en-GB" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="color:black"><span style="language:en-GB">for sand, bricks and cement, respectively. On the other hand, the lung dose was determined to be 3.71, 7.92 and 2.795 for sand, bricks and cement respectively. </span></span></span></span><span lang="en-GB" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="color:#1f497d"><span style="font-style:italic"><span style="font-weight:bold"><span style="language:en-GB">Conclusion: </span></span></span></span></span></span><span lang="en-GB" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="color:black"><span style="language:en-GB">The concentrations of radon gas in building materials were consistent with recommended by the International Commission on Radiological Protection (ICRP) 200-300 Bqm</span></span></span></span><span lang="en-GB" style="font-size:5.9939pt"><span style="font-family:Calibri"><span style="color:black"><span style="language:en-GB">^-3</span></span></span></span><span lang="en-GB" style="font-size:9.0pt"><span style="font-family:Calibri"><span style="color:black"><span style="language:en-GB"> except the bricks materials.</span></span></span></span></span></span></span></span></span></span></div> Radon concentration, CR-39, effective dose, lung cancer. 223 227 http://ijrr.com/browse.php?a_code=A-10-1-1161&slc_lang=en&sid=1 M. Sh. Aswood murtadhababylon@gmail.com 7900319475328460028958 7900319475328460028958 Yes Department of Physics, College of Education, University of Al-Qadisiyah, Al-Diwaniyah, Iraq A.A. Elewee 7900319475328460028959 7900319475328460028959 No Department of Physics, College of Education, University of Al-Qadisiyah, Al-Diwaniyah, Iraq