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The data below are the 'raw' extracts from the documents and/or papers. Please refer to the last column for the reference and obtain the full text if required. Please also let me know if there are any mistakes here. |
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No
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Data
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1
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Belgium
Activity of the different plaster in the gypsum industry: K-40<0.05 Bq/g; Ra-226<0.005 - 0.182 Bq/g; Th-232: <0.005 - 0.125 Bq/g |
V-02
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2
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Netherlands
To reduce acid rain, all coal fired power stations have a desulphurisation system with the production of gypsum as a consequence. The activity of this gypsum is: Ra-226 0.007Bq/g; Th-232 0.001Bq/g; K-40 0.008Bq/g. Natural gypsum: Ra-226 in range 0.004 - 0.030 Bq/g |
H-02
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3
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Netherlands
Gypsum products used in The Netherlands can be subdivided into 3 categories: (a) Materials of low specific activity (~0.005 Bq/g of both Ra-226 & Ra-228); (b)Materials with intermediate levels (0.10-0.15 Bq/g of both Ra-226 & Ra-228); and (c)Materials with high levels (0.20-0.25 Bq/g of both Ra-226 & Ra-228). |
D-03
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