A Semiquantitative Method to Assess Occupational Exposure 职业暴露半定量评价方法.pdf

A Semi-Quantitative Method to Assess Occupational Exposure to Harmful Chemicals Ministry of Manpower Occupational Safety and Health Division 18 Havelock Road #03-02 Singapore 059764 Email: mom_oshd@mom.gov.sg A Semi-Quantitative Method to Assess Occupational Exposure to Harmful Chemicals Introduction Risk may be defined as the likelihood of occurrence of an event resulting in certain consequences. Different chemicals have different properties and toxicity. Exposure to toxic chemicals can result in different effects depending on the routes and levels of exposure. A risk assessment of toxic or harmful chemicals determines the risk levels they present to the users. It also enables decisions to be made on whether measures need to be taken to safeguard or protect persons against the chemicals. Under the Factories Act, factory occupiers or employers must take measures to ensure the safe use of chemicals. To discharge this duty, an assessment of all chemicals used in the workplace must be carried out in order to identify, evaluate and control any health risk associated with Objectives work activities involving the use of the chemicals. The purposes of conducting a risk assessment of harmful chemicals are The purpose of these guidelines is to to provide guidance to factory occupiers, employers, health and safety personnel, as well as users of • identify the hazards posed by each