what are the methods to control profitising
Answers
The best way to achieve control is by addressing the source of the hazard/contamination, and consequently this is placed on top of the control measure hierarchy. Substitution of currently-used materials with less hazardous materials is one of the most effective ways for eliminating or reducing exposure to materials that are toxic or pose other hazards.
If control by source cannot be achieved or does not resolve the problem then an attempt should be made to control the risk by interrupting the path of exposure between the hazardous material and the worker/receiver. In terms of “path”, engineering controls are preferable to administrative/procedural controls: This is not necessarily due to a question of effectiveness but more to the potential longevity of the measure. While an engineering control requires a physical change to the workplace, administrative controls require the workers or employers to do something.
Personal protective equipment is considered to be the least effective measure and is placed at the bottom of the control hierarchy. Personal Protective Equipment (PPE) requires the workers to wear something and should be the last resort for reducing exposures. It is only if none of the measures in the upper part of the control hierarchy can be achieved, should one resort to a situation where the primary control measures are based around the workers themselves.
hierarchy of controls.jpg The hierarchy of control measures, with the most effective measures at the top of the pyramid. ©University of Bergen
In summary, when deciding on what controls can be used, start at the top and work down the list considering each measure in turn, and try to use measures that are higher up in the hierarchy. This means that although PPE can often be used, it should not be the first choice when controlling exposure to a hazard.
Measures that can be applied at the source of the contamination include:
Eliminate the source, - examples;
o use electric instead of diesel powered forklift trucks
o use automatic instead of manual machines for hazardous work such as cutting and skinning
Substitution – using a less hazardous chemical or process;
o asbestos has been banned in many countries, and is substituted by synthetic mineral fibers for insulation
o lead in paint has been substituted by e.g. zink and titanium dioxides
Isolation / containment / enclosure;
o enclose sources or the employee, or the source and some employees together rather than all employees
o place the source in a separate location from the employees
Modification of the source or process
o replace dry sweeping with broom with vacuum cleaning or wet methods
o use pellets instead of powders
o use pre-mixed or diluted chemicals instead of manually mixing or diluting chemicals at the workplace
Automation – use robotics, remote or computer aided products
Local exhaust ventilation – using ventilation to capture the contaminant at the source, to prevent it dispersing
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