Institute of Nuclear Sciences, Ege University, Izmir, Turkey.
J Environ Sci Health A Tox Hazard Subst Environ Eng. 2010 Dec;45(14):1900-8. doi: 10.1080/10934529.2010.520608.
To evaluate the effect of radionuclide emission on the environment from Yatagan, Yenikoy and Kemerkoy coal-fired power plants which are located in southwestern Anatolia of Turkey, the concentrations of natural radionuclides such as (226)Ra, (232)Th and (40)K in coal, bottom ash and fly ash samples, have been measured, as well as the concentration of the same radionuclides in surface soils. The dose rate arises from the total radioactivity content of soil that the people living by the power plants are exposed to be assessed additionally. The average activity concentrations of (226)Ra for Yatagan CPP is 80 ± 22 Bq kg(-1) ranging from 56 to 131 Bq kg(-1), for Yenikoy CPP is 138 ± 20 Bq kg(-1) ranging from 115 to 189 Bq kg(-1), for Kemerkoy CPP is 238 ± 80 Bq kg(-1) ranging from 134 to 356 Bq kg(-1) in coal; average activity concentrations of (226)Ra in fly ash and in bottom ash for above-mentioned power plants are 334 ± 60 Bq kg(-1) ranging from 291 to 481 Bq kg(-1), 461 ± 33 Bq kg(-1) ranging from 398 to 511 Bq kg(-1), 815 ± 254 Bq kg(-1) ranging from 316 to 1260 Bq kg(-1), 276 ± 51 Bq kg(-1) ranging from 222 to 349 Bq kg(-1), 285 ± 69 Bq kg(-1) ranging from 213 to 409 Bq kg(-1), 743 ± 234 Bq kg(-1) ranging from 366 to 1098 Bq kg(-1), respectively. The radionuclides activity concentrations of surface soil in the vicinity of coal-fired power plants are 32 ± 9 Bq kg(-1) (18-53 Bq kg(-1)) for (226)Ra, 37 ± 16 Bq kg(-1) (17-89 Bq kg(-1)) for (232)Th, 455 ± 165 Bq kg(-1) (203-794 Bq kg(-1)) for (40)K relevant to Yatagan CPP; 42 ± 30 Bq kg(-1) (9-168 Bq kg(-1)) for (226)Ra, 32 ± 14 Bq kg(-1) (6-74 Bq kg(-1)) for (232)Th, 365 ± 151 Bq kg(-1) (117-937 Bq kg(-1)) for (40)K relevant to Yenikoy and Kemerkoy CPP. As a result, average dose rates in the vicinity of coal-fired power plants have been calculated to be 56 ± 16 nGy h(-1) ranging from 30 to 100 nGy h(-1) for Yatagan CPP, 54 ± 22 nGy h(-1) ranging from 15 to 126 nGy h(-1) for Yenikoy and Kemerkoy CPP. To sum up, the natural radionuclide activity concentrations of burnt coal and ashes thrown out from these three power plants are quite high relative to the world average UNSCEAR[1] data. In addition, the average (226)Ra, (232)Th and (40)K activity concentration values of surface soil samples and the calculated gamma dose rates in the vicinity of power plants were located within the worldwide intervals reported by UNSCEAR,[30] with some local differences.
为了评估位于土耳其西南部安纳托利亚的亚达干、耶尼科伊和克梅尔克燃煤电厂的放射性核素排放对环境的影响，测量了煤、底灰和飞灰样品中天然放射性核素（226）Ra、（232）Th 和（40）K 的浓度，以及这些放射性核素在地表土壤中的浓度。此外，还评估了生活在电厂附近的人们所接触的土壤总放射性活度导致的剂量率。
亚达干 CPP 的（226）Ra 的平均活度浓度为 80 ± 22 Bq kg(-1)，范围为 56 至 131 Bq kg(-1)；耶尼科伊 CPP 为 138 ± 20 Bq kg(-1)，范围为 115 至 189 Bq kg(-1)；克梅尔克 CPP 为 238 ± 80 Bq kg(-1)，范围为 134 至 356 Bq kg(-1)，煤中的（226）Ra 平均活度浓度；上述电厂的飞灰和底灰中的（226）Ra 平均活度浓度分别为 334 ± 60 Bq kg(-1)，范围为 291 至 481 Bq kg(-1)，461 ± 33 Bq kg(-1)，范围为 398 至 511 Bq kg(-1)，815 ± 254 Bq kg(-1)，范围为 316 至 1260 Bq kg(-1)，276 ± 51 Bq kg(-1)，范围为 222 至 349 Bq kg(-1)，285 ± 69 Bq kg(-1)，范围为 213 至 409 Bq kg(-1)，743 ± 234 Bq kg(-1)，范围为 366 至 1098 Bq kg(-1)。
燃煤电厂附近地表土壤中（226）Ra 的放射性核素活度浓度为 32 ± 9 Bq kg(-1)（18-53 Bq kg(-1))，（232）Th 为 37 ± 16 Bq kg(-1)（17-89 Bq kg(-1))，（40）K 为 455 ± 165 Bq kg(-1)（203-794 Bq kg(-1))，与亚达干 CPP 有关；（226）Ra 为 42 ± 30 Bq kg(-1)（9-168 Bq kg(-1))，（232）Th 为 32 ± 14 Bq kg(-1)（6-74 Bq kg(-1))，（40）K 为 365 ± 151 Bq kg(-1)（117-937 Bq kg(-1))，与耶尼科伊和克梅尔克 CPP 有关。因此，燃煤电厂附近的平均剂量率计算为 56 ± 16 nGy h(-1)，范围为 30 至 100 nGy h(-1)，亚达干 CPP；54 ± 22 nGy h(-1)，范围为 15 至 126 nGy h(-1)，耶尼科伊和克梅尔克 CPP。
总之，与联合国原子辐射效应科学委员会（UNSCEAR）[1]公布的世界平均水平相比，这三个电厂燃烧的煤和排放的煤灰中的天然放射性核素活度浓度相当高。此外，电厂附近土壤样品中（226）Ra、（232）Th 和（40）K 的平均活度浓度值以及计算出的伽马剂量率均位于 UNSCEAR[30]报道的世界范围内，存在一些局部差异。
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