Glöbel B, Andres C
Sci Total Environ. 1985 Oct;45:63-7. doi: 10.1016/0048-9697(85)90204-9.
In the main wind direction of a coal-fired power plant dust and soil samples have been collected to analyse the content of fly-ash coming from the power plant. The fly-ash particles are spherical and contain the natural radionuclides mainly Ra-226, Pb-210, Po-210 and K-40 in a higher concentration when compared with the original coal. The investigation of soil samples results in increased Pb-210 and Po-210 concentrations when compared with the natural environment. By presence of spherical particles in dust and soil samples the power plant can be identified as the emitter.
在燃煤发电厂的主风向采集了灰尘和土壤样本，以分析来自该发电厂的飞灰含量。飞灰颗粒呈球形，与原煤相比，其所含天然放射性核素主要为镭 - 226、铅 - 210、钋 - 210和钾 - 40的浓度更高。对土壤样本的调查结果表明，与自然环境相比，土壤中铅 - 210和钋 - 210的浓度有所增加。通过灰尘和土壤样本中存在的球形颗粒，可以确定该发电厂为排放源。
