In April 2000, the Department of Occupational Safety and Health (DOSH) gazette a new regulation known as the Use and Standards of Exposure of Chemicals Hazardous to Health (USECHH) Regulation 2000. One of the mandatory requirements of the regulation is for a company using hazardous chemicals to conduct a Chemical Health Risk Assessment (CHRA). The assessment incorporates the identification, evaluation and control of health risks associated with chemicals used in the workplace.
ü To identify the hazards associated with the handling, use, storage, and transport of chemicals used in the workplace and ;
ü To evaluate the degree of exposure of employees to the hazardous chemicals;
ü To evaluate the adequacy of existing control measures;
ü To determine the significant of the health risk posed by the chemicals;
ü To recommend further appropriate control measures to mitigate or eliminate risks
SCOPE OF WORK
Task 1: Identification of Chemicals In The Workplace.
The identification exercise shall incorporate all chemicals found in workplace, including those handled, used, stored and transported. The list shall be compiled as an inventory that will incorporate information such as name of chemicals, quantities stored / used, compositions, and their location. The MSDS also be identified
Task 2: Determination Of Degree of Hazard.
The hazard and toxicity of each chemical will be assessed and designated a hazard rating. Where the required information is unavailable, other sources shall be used
Task 3: Division of Work Unit.
Others information required; Health surveillance report; Monitoring results; Process flow chart; LEV / GV; Plant layout.
Task 4: Evaluation of Exposure.
To assess the exposure and risk of the work unit to each chemical used/handled by or exposed to the work unit and the adequacy of existing control measures. The evaluation exercise shall consider
tasks in which hazardous chemicals are being used or where there is likely exposure to these chemicals, such as from spills or leaks.
Exposures are evaluated by assessing the likelihood of contact the work unit with the hazardous Chemicals or release into the work environment, entry routes, handling methods, degree/magnitude of
exposure and duration of exposure.
Task 5: Assessment of Risk.
The evaluate the risks associated with each hazardous chemical using evaluation criteria and guideline developed by DOSH.
Task 6: Assessment of Adequacy of Control Measures.
The presence and adequacy of existing control measures for each work unit is evaluated for suitability of protection, effectiveness in preventing or minimizing exposure.
Task 7: Concluding the Assessment.
The assessments for each work unit shall be concluded by determine the significant of the risk for each chemical found in the work unit. The determination of significant will consider all information through Task 1 to 6.
Task 8: Identification of Action Required
This stage addresses the actions required, including control measures, based on the conclusion of assessment from Task 7.
Ø Identification of chemicals in the workplace, Determination of degree of hazard & Site tour (1st week)
Ø Evaluation of exposure ,Assessment of risk Assessment of adequacy of control measure (2nd week)
Ø Concluding the assessment & Identification of action required (3rd week)
Ø Complete the report (4th week)
DOSH Registered CHRA Assessor.