The Radioactive Substances (Hospitals) Exemption Order 1990

6.—(1) Aqueous liquid radioactive waste shall be disposed of from the hospital premises by discharging it into a drainage system which drains to a public sewer which is normally used for the disposal of foul water or trade effluent.

(2) The sum total activity of radionuclides in human excreta in the aqueous liquid radioactive waste disposed of in any month shall not exceed—

(a) in the case of technetium 99m, 1.0 gigabecquerels; and

(b) in the case of all other radionuclides, 500 megabecquerels.

(3) The sum total activity of radionuclides other than in human excreta in the aqueous liquid radioactive waste disposed of in any month shall not exceed 50 megabecquerels.

(4) In this paragraph—

• “public sewer” has the same meaning as in section 189(1) of the Water Act 1989(1) and, in relation to Scotland, section 59(1) of the Sewerage (Scotland) Act 1968(2); and

• “trade effluent” has the same meaning as in section 14(1) of the Public Health (Drainage of Trade Premises) Act 1937(3) and, in relation to Scotland, section 56(1) of the Control of Pollution Act 1974(4).

(1)

1989 c. 15.

(2)

1968 c. 47.

(3)

1937 c. 40.

(4)

1974 c. 40; section 56 was substituted by section 169 of, and paragraph 6 of Schedule 23 to, the Water Act 1989.