MNO2608 Assignment 5 (WRITTEN) Semester 1 2025

Fundamentals of Industrial Hygiene - MNO2608 Assignment 5 (COMPLETE ANSWERS) Semester 1 2025 ;100 % TRUSTED workings, Expert Solved, Explanations and Solutions. For assistance call or W.h.a.t.s.a.p.p us on ...(.+.2.5.4.7.7.9.5.4.0.1.3.2)........... QUESTION 1 lOMoARcPSD| MNO2608 – ASSESSMENT 5 (WRITTEN) [20] CASE STUDY ONE (1): Respirable Silica Dust Exposure and Heat Stress in an Underground Gold Mine. In 2022, twenty-five (25) mine workers at an underground gold mine in South Africa were exposed to dangerously high levels of respirable crystalline silica dust during routine drilling operations. The dust suppression systems, including water sprays and misting, were not functioning properly, and the underground ventilation system was underperforming due to delayed servicing. Exposure monitoring later revealed silica dust levels exceeding 0.25 mg/m³, which is more than double the legal limit of 0.1 mg/m³. Additionally, the underground working environment was extremely hot. Workers faced heat stress due to inadequate cooling systems and limited access to water in the work area. Prolonged exposure to heat stress, combined with poor air quality, put workers at risk for both heat-related illnesses and respiratory problems. Note: This case study is fictional and intended solely for portfolio assessment purposes. Any resemblance to actual persons or real events is purely coincidental. Make use of Case Study 1 and conduct additional research to answer the question. Remember to reference the sources of your information. 1.1. Identify the key failures that led to workers being exposed to respirable silica dust and heat stress. (5) 1.2. Discuss the health risks associated with prolonged exposure to respirable crystalline silica dust and heat stress in an underground mining environment. (5)