Introduction Millions of South Africans work in buildings with mechanical heating, ventilation and air conditioning (HVAC) systems; these systems are designed to provide air at comfortable temperature and humidity levels, full of harmful concentrations of air pollutants. While heating and air – conditioning are relatively straightforward operations, the more complex processes involved in ventilation are […]
Risk-Based Thinking Risk-Based thinking is the basis of the new ISO 9001-2015. Risk is identified in every section of the newly updated standard. Risk and Opportunities must not be confused or seen as the same thing. Hazards are identified in the business model that the company operates within, the Risks of these hazards needs to […]
Thermal comfort in the Environment Thermal Comfort is that condition of mind which expresses satisfaction with the thermal environment. In terms of bodily sensations, thermal comfort is a sensation of hot, warm, slightly warmer, neutral, slightly cooler, cool and cold. Six factors affecting thermal comfort are both environmental and personal. These factors shown below may […]
The conveyors of food for human consumption often overlook the effects on food safety by uncontrolled food transportation. It would benefit food safety should HACCP Consultants & Environmental Health Practitioners alike view a transport vehicle/tanker as a “Food Premises”.
Sound is defined as any pressure variation in air, water or some other medium that the human ear can detect. Noise, on the other hand, is generally defined as ‘unwanted’ sound. Noise can be a nuisance at common law and under statute law, resulting in disturbance and loss of enjoyment of life, loss of sleep […]