Antimony (*10mg/l)

Arsenic (*19mg/l)

Aldrin

Atrazine

Azinphos-ethyl

Azinphos-methyl

Beryllium(*10mg/l)

Cadmium and compounds

Calcium carbide

Carbon disulphide

Carbon tetrachloride

Chloroform

Chromium(*10mg/l)

Copper (*10mg/l)

DDT 1,2-Dichloroethane

Dichlorvos

Dioxins

Drins (aldrin, dieldrin, endrin)

Endosulfan

Fenitrothion

Fenthion

HCH (gamma

hexachlorocyclohexane)

Hexachlorobenzene

Hexachlorobutadiene

Lead (*10mg/l)

Malathion

Mercury and compounds

Nickel (*10mg/l)

Organo-halogen compounds

Parathion

Parathion-methyl

PCBs (polychlorinated biphenyls)

Pentachlorophenol and compounds

Petrol Selenium (*10mg/l)

Petroleum spirit

Silver (*10mg/l)

Simazine

Tetrachloroethylene

Tin (*10mg/l)

Tributyl-tin compounds

Trichlorobenzene

Tricholroethane

Trichloroethylene

Trifuralin

Triphenyl-tin compounds

Vanadium(*10g/l)

Zinc (*10mg/l)