Question 1: refer to figure 26.2 and any other data in the commentary to anticipate hazards (IDENTIFY TOXICANTS OR HAZADOUS SUBSTANCES AND OTHER HAZARDS) in the plant.( Hint hazards include heat, thermal radiation, reactivity, noise and toxicant.) Pick one toxicant or hazardous material, and write the following: 1. Health effects both acute and chronic 2. Threshold dose or values 3. LD/ LC fifty data 4. Engineering controls 5. Physical properties such as solubility, vapour density, boiling point, 6. Health and safety hazards e.g. carcinogenic, flammable etc. 7. Reactivity and stability data 8. First aid 9. PPE

(Toxicants:: 1.liquid sulphur 2.sulphur(lll)oxide 3.sulphur(ll)oxide

Figure A1: SULFURIC ACID PLANT FROM COMBUSTION OF ELEMENTAL SULFUR