MNO2608 ASSESSMENT 5 SEMESTER 2 2025 1.1. Which sectors have shown improvement, and which remain high risk? Explain these possible reasons for these trends. (10)

THE BMZ ACADEMY



THE BMZ ACADEMY




053 8213




BMZ ACADEMY 061 262 1185/068 053 8213Page 1 of 24

, THE BMZ ACADEMY
Table of Contents

QUESTION 1 [20]............................................................................................................ 4

1.1. Which sectors have shown improvement, and which remain high risk? Explain these
possible reasons for these trends. (10) ........................................................................... 4

1.2 As an occupational hygienist, recommend appropriate control measures to reduce the
incidence of silicosis, pulmonary TB, and noise-induced hearing loss in the mining sector.
(10) .................................................................................................................................. 6

QUESTION 2 [20]............................................................................................................ 8

2.1. The South African Qualifications Authority (SAQA) recognises the South African
Institute of Occupational Hygiene (SAIOH) as South Africa’s Professional Registration
Body for Occupational Hygiene. Differentiate the three (3) occupational hygiene
designations accredited by SAQA. (10)........................................................................... 8

2.2 Describe the role of an Approved Inspection Authority (AIA) and the documentation
and equipment it must maintain before and after obtaining approval. (10) .................... 10

QUESTION 3 [15].......................................................................................................... 12

3.1. Advise the Health and Safety Officer of Bapong Local Municipality on the criteria used
to select personal protective equipment for sewage and effluent workers (5). .............. 12

3.2. Fifteen workers in a foundry are exposed to heat stress, with the Wet-Bulb Globe
Temperature (WBGT) index ranging from 27 to 30 °C over a 1-hour period. Recommend
appropriate control measures to protect the workers from the associated health risks. (10)
...................................................................................................................................... 13

3.3 As an occupational toxicologist in the pharmaceutical industry, explain how lethal
dose (LD) and lethal concentration (LC) values are used to assess chemical hazards in
occupational settings. (5) .............................................................................................. 14

BMZ ACADEMY 061 262 1185/068 053 8213Page 2 of 24

, THE BMZ ACADEMY
QUESTION 4 [20].......................................................................................................... 15

4.1. List and explain the main routes of intake for environmental and occupational
stressors in the construction industry, providing examples for each. (6) ....................... 16

4.2. The goal of occupational toxicology is to establish safe working conditions. As an
occupational hygienist, analyse the toxicological classifications commonly found in a
chemical manufacturing plant and evaluate the potential risks they pose to workers. (14)
...................................................................................................................................... 17

4.3. As a Department of Employment and Labour inspector, advise the South African
Council for the Project and Construction Management Professions (SACPCMP) on the
key factors to be considered when developing an occupational hygiene programme for
the construction sector. (15) .......................................................................................... 18

Reference List ............................................................................................................... 21




BMZ ACADEMY 061 262 1185/068 053 8213Page 3 of 24