Ambient concentrations of indoor/outdoor radon and gamma dose rates (GDR) were measured, using RTM 1688–2 and Ludlum micrometer 19, in the Muzaffarabad city. For indoor radon measurements, radon concentrations varied in the range of 16 to 150 Bq m⁻³, whilst for outdoor environment from 7 to 31 Bq m⁻³. Average values of indoor and outdoor radon concentrations were found as 46.9 and 13.3 Bq m⁻³, respectively. For indoor measurements, GDR ranges from 419 to 1486 µGy y⁻¹ with mean value of 846 µGy y⁻¹, whilst outdoor GDR varied from 495 to 1029 µGy y⁻¹ with mean value of 777 µGy y⁻¹. For indoor measurements, annual effective dose (\({E}_{Rn}\)) due to radon exposure ranges from 0.4 to 3.78 mSv y⁻¹ with average value of 1.18 mSv y⁻¹. Radon doses delivered to lungs varied from 0.97 to 9.08 mSv y⁻¹ with an average value of 2.84 mSv y⁻¹. Excess lifetime cancer risk (ELCR) varied from 1.49 × 10⁻³ to 14.01 × 10⁻³ with mean value 4.38 × 10⁻³. Data of current study show that lung cancer cases per year per million person (\(Lung_{{\text{cancer cases}}}\)) ranges between 7.26 and 68.1 per million persons per year with mean value of 21.2 per million persons per year. Present study results reported for \({Lung}_{cancer cases}\) are lower than ICRP recommended values, viz. 170–230 per million persons. Average value of indoor radon value, viz. 46.9 Bq m⁻³, for the current study is found to be less than the reference value of 100 Bq m⁻³ proposed by the World Health Organization (WHO), whilst average value of outdoor gamma absorbed dose rate, viz. 88.7 nGy h⁻¹, for the current study is found to be greater than the world average value of 54 nGy h⁻¹ for outdoor gamma absorbed dose rate in air due to terrestrial sources.

在穆扎法拉巴德市，使用 RTM 1688-2 和 Ludlum 测微计 19 测量了室内/室外氡和伽马剂量率 (GDR) 的环境浓度。对于室内氡测量，氡浓度在 16 到 150 Bq m ^-3的范围内变化，而对于室外环境，则从 7 到 31 Bq m ^-3。室内和室外氡浓度的平均值分别为 46.9 和 13.3 Bq m ^-3。对于室内测量，GDR 范围为 419 至 1486 µGy y ^-1，平均值为 846 µGy y ^-1，而室外 GDR 范围为 495 至 1029 µGy y ^-1，平均值为 777 µGy y ^-1。对于室内测量，年有效剂量 ( \({E}_{Rn}\)) 由于氡暴露范围为 0.4 到 3.78 mSv y ^-1，平均值为 1.18 mSv y ^-1。输送到肺部的氡剂量从 0.97 到 9.08 mSv y ^-1不等，平均值为 2.84 mSv y ^-1。终身癌症风险（ELCR）从1.49 × 10 ^-3到14.01 × 10 ^-3不等，平均值为4.38 × 10 ^-3。目前的研究数据显示，每年每百万人的肺癌病例（\(Lung_{{\text{cancer cases}}}\)）介于每百万人每年 7.26 至 68.1 之间，平均值为每百万人每年 21.2年。目前针对\({Lung}_{癌症病例}\)报告的研究结果低于 ICRP 推荐值，即。每百万人 170-230。室内氡值的平均值，即。46.9 Bq m ^-3，对于目前的研究发现低于世界卫生组织（WHO）提出的100 Bq m ^-3参考值，而室外伽马吸收剂量率的平均值，即。88.7 nGy h ^-1，对于目前的研究，被发现大于世界平均值 54 nGy h ^-1由于地面源在空气中的室外伽马吸收剂量率。