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Aflatoxins

Arsenic

Bichromate manufacture involving the roasting of chromite ore

Electrolytic chromium processes, excluding passivation, which involve hexavalent chromium compounds

Mustard gas (B, B'Dichlorodiethyl sulphide)

Calcining, sintering or smelting of nickel copper matte or acid leaching or electrorefining of roasted matte

Coal soots, coal tar, pitch and coal tar fumes

The following mineral oils:


(i)  unrefined and mildly refined vacuum distillates;


(ii)  catalytically cracked petroleum oils with final boiling points above 320°C;


(iii)  used engine oils;

Auramine manufacture

Leather dust in boot and shoe manufacture, arising during preparation and finishing

Hard wood dusts

Isopropyl alcohol manufacture (strong acid process)

Rubber manufacturing and processing giving rise to rubber process dust and rubber fume

Magenta manufacture