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MNO2608 Assignment 4 Semester 2 2024 DUE 25 September 2024

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The Question QUESTION 1 [25] 1.1. An Approved Inspection Authority (AIA) conducts investigations using specialised knowledge and equipment. Advise the occupational hygienists of platinum refineries on criteria for evaluating AIA applications by the Department of Employment and Labour. (15) 1.2. Occupational hygiene risk assessment (OHRA) is a systematic method used to identify, assess, and manage workplace hazards that could impact the health and well-being of workers. What specific factors must be recorded when undertaking an OHRA in a chemical manufacturing industry? (5) 1.3. An occupational disease is a health condition or disorder from exposure to risk factors linked to a specific job or work environment. Explain the procedure to follow when reporting an occupational disease. (5) QUESTION 2 [15] 2.1 The Wet Bulb Globe Temperature (WBGT) index is a temperature-based tool used to estimate the impact of various factors on human health, especially in an occupational environment. An employee working in an outdoor environment is exposed to a WBGT index of 32.4°C. Advise on the recommended actions or precautions the employee should take to ensure their health and safety. (5) 2.2 Occupational noise exposure a significant concern in various industries, that can lead to hearing loss and other adverse health effects due to prolonged or intense noise exposure. As an inspector for the Department of Employment and Labour, what advice would you give to the occupational hygiene technologist of a construction company about the health risks associated with employee exposure to noise levels above 85 dBA for an eight hour period at a construction site? (5) 2.3 Explain the three principles that toxicology is based upon and how it has an effect in the workplace. (5) QUESTION 3 [18] 3.1 Respirable crystalline silica (RCS) exposure is prevalent in various industries, including mining. Explain the possible routes of exposure to RCS in a platinum mine. (6) 3.2 Discuss the control measures that can be implemented to control exposure to respirable platinum dust. (12) QUESTION 4 [17] 4.1 In 2008, the use, manufacture, and processing of asbestos materials were effectively banned in South Africa. Describe the types of asbestos fibers and outline the health risks associated with exposure to asbestos materials in manufacturing motor vehicle brake pads. (10) 4.2. As a project manager, advise the asbestos removal contractor on the requirement of disposal of asbestos material from the house roof

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MNO2608

Assignment 4

Semester 2

DUE 25 September 2024

, QUESTION 1


1.1. Criteria for Evaluating AIA Applications

When evaluating applications from Approved Inspection Authorities (AIAs) by the
Department of Employment and Labour, th e following criteria should be considered:
1. Technical Expertise: The AIA must demonstrate appropriate technical
capabilities and understanding of occupational health and safety (OHS)
regulations, methodologies, and standards relevant to platinum refining
processes.
2. Accreditation: Verify that the AIA is accredited by recognized bodies to
conduct inspections and assessments in occupational hygiene relevant to
metal processing.
3. Experience: Evaluate the AIA’s experience in conducting investigations within
similar environments, specifically those related to exposure scenarios in
platinum refineries.
4. Equipment and Resources: The AIA should possess or have access to
appropriate and calibrated equipment for conducting analyses and monitoring
air quality, noise levels, and other potential occupational hazards.
5. Compliance History: Assess the compliance history of the AIA in previous
inspections, reports, and any engagements with regulatory authorities.
6. Quality Management System: Check for an established quality management
system that ensures the reliability and accuracy of inspections and reporting.
7. Training and Certification: Ensure personnel conducting investigations hold
relevant certifications and ongoing training in occupational hygiene practices
and standards.
8. Reporting Competency: Evaluate the ability to produce comprehensive,
clear, and scientifically valid reports detailing findings and recommendations
for risk management.
9. Client References: Review references from previous clients to ascertain
performance and reliability.
10. Health and Safety Policies: The AIA should have a robust health and safety
policy to protect both their workers and those in the environments they
assess.
11. Continuous Professional Development: Evidence of continuous education
and participation in workshops/conferences related to occupational health
trends.
12. Ethical Practices: The AIA must operate with integrity and transparency,
adhering to ethical practices in their investigations.

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