Unit 6:  Current Legislation Affecting UK Industry: Atmosphere

6.2.6  Prescribed Substances

Prescribed substance are those used or produced in the prescribed processes mentioned above that need to be regulated by the Environment Agency or the local authority. The entire list of prescribed processes and substances is given within the Environmental Protection (Prescribed Processes and Substances) Regulations 1991.

BATNEEC must be utilised in the prevention of the release of such substances into the environmental medium to which they are prescribed, or where this is not practicable, to decrease the release of such substances to the minimum amount possible and to make sure that they are harmless.

The prescribed substances to each medium are given in the following table:

Steelworks - molten metal

RELEASES TO AIR RELEASE TO WATER (THE UK RED LIST)
Oxides of sulphur & other sulphur compounds.
Oxides of nitrogen & other nitrogen compounds.
Oxides of carbon.
Organic compounds & partial oxidation products.
Metals, metalloids & their compounds.
Asbestos, glass fibres & mineral fibres.
Halogens & their compounds.
Phosphorous & its compounds.
Particulate matter.
 
 
 
 
 
 
 		Mercury & Cadmium & their compounds.
All isomers of hexachlorocyclohexane.
All isomers of DDT.
Pentachlorophenol & its compounds.
Hexachlorobenzene.
Aldrin, Dieldrin & Endrin.
Polychlorinated biphenyls.
Dichlorvos.
1,2-Dichloroethane.
All isomers of tricholobenzene.
Atrazine & Simazine.
Tributyl & Triphenyl tin compounds.
Trifluralin, Fenitrothion, Azinphos-methyl, Malathion, Endosulfan.
 
RELEASES TO LAND  
Organic solvents.
Azides.
Halogens and their covalent compounds.
Metal carbonyls.
Organo-metallic compounds.
Oxidising agents.
 
 
 
 		Polychlorinated dibenzofuran & any cogener.
Polychlorinated dibenzo-p-dioxin & any cogener.
Polyhalogenated biphenyls, terphenyls & naphthalenes.
Phosphorous.
Pesticides.
Alkali metals, their oxides & alkaline earth metals & their oxides.