problem 1:

Occupational exposure to lead metal and salts.

(a) Category of workers exposed, metabolism and mode of toxicity

(b) Health effects and prevention of contamination of workers

problem 2:

Organic solvents: Physicochemical properties, Health effects, Prevention of health effects.

problem 3:

HIV/AIDS at the workplace:

(i) Definition and mode of transmission

(ii) Impact on workers and enterprises

(iii) Strategies to limit the spread of HIV/AIDS

problem 4:

Occupational noise:

(i) State five workplaces where workers are exposed to undue noise

(ii) Health effects of occupational noise

(iii) Measures to control occupational noise