# The Environmental Permitting (England and Wales) Regulations 2016, Paragraph 1: Table 1


(1) The Table 1 referred to in paragraph 4 of Part 2 (NORM industrial activities) is—
Table 1
Concentration of radionuclides: NORM industrial activities
Radionuclide
Solid or relevant liquid concentration in becquerels per gram (Bq/g)
Any other liquid concentration in becquerels per litre (Bq/l)
Gaseous concentration in becquerels per cubic metre (Bq/m3)
U-238sec
0.5
0.1
0.001
U-238+
5
10
0.01
U-234
5
10
0.01
Th-230
10
10
0.001
Ra-226+
0.5
1
0.01
Pb-210+
5
0.1
0.01
Po-210
5
0.1
0.01
U-235sec
1
0.1
0.0001
U-235+
5
10
0.01
Pa-231
5
1
0.001
Ac-227+
1
0.1
0.001
Th-232sec
0.5
0.1
0.001
Th-232
5
10
0.001
Ra-228+
1
0.1
0.01
Th-228+
0.5
1
0.001
(2) The Table 1 summation rule in respect of column 2, 3 or 4 means the sum of the quotients A/B where—
(a) “A” means the concentration of each radionuclide listed in column 1 of Table 1 that is present in the substance or article, and
(b) “B” means the concentration of that radionuclide specified in column 2, 3 or 4 (as appropriate) of Table 1.

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Source: https://www.legislation.gov.uk/ukdsi/2016/9780111150184/schedule/23/part/3/paragraph/1 (the official version)
Page: https://openlegislation.uk/draft-environmental-permitting-england-and-wales-regulations-2016/schedule-23/part-3/paragraph-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.