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The Planning (Hazardous Substances) Regulations 1992

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PART ATOXIC SUBSTANCES

Column 1Column 2
Hazardous substancesControlled quantities
(in tonnes, unless otherwise stated)

1.  Acetone Cyanohydrin (2-Cyanopropan-2-ol)

200

2.  Acrolein (2-Propenal)

200

3.  Acrylonitrile

  20

4.  Allyl alcohol (2-Propen-l-ol)

200

5.  Allylamine

200

6.  Ammonia (anhydrous or as solution containing more than 50% by weight of ammonia)

100

7.  Arsenic trioxide, Arsenious (III) acid and salts

    1

8.  Arsine (Arsenic hydride)

    1

9.  Bromine

  40

10.  Carbon disulphide

  20

11.  Chlorine

  10

12.  Ethylene dibromide (1,2-Dibromoethane)

  50

13.  Ethyleneimine

  50

14.  Formaldehyde (>90%)

  50

15.  Hydrogen chloride (liquefied gas)

250

16.  Hydrogen cyanide

  20

17.  Hydrogen fluoride

  10

18.  Hydrogen selenide

    1

19.  Hydrogen sulphide

  50

20.  Methyl bromide (Bromoethane)

200

21.  Methyl isocyanate

150 kilograms

22.  Nickel tetracarbonyl

    1

23.  Nitrogen oxides

  50

24.  Oxygen difluoride

    1

25.  Pentaborane

    1

26.  Phosgene

750 kilograms

27.  Phosphine (Hydrogen phosphide)

    1

28.  Propyleneimine

  50

29.  Selenium hexafluoride

    1

30.  Stibine (Antimony hydride)

    1

31.  Sulphur dioxide

  20

32.  Sulphur trioxide (including the sulphur trioxide content in oleum)

  15

33.  Tellurium hexafluoride

    1

34.  2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD)

    1 kilogram

35.  Tetraethyl lead

  50

36.  Tetramethyl lead

  50

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