The most important aspect of any safety program is determining how to reduce employee exposures to hazardous substances.  We employ a multitiered approach to help ensure safety with an emphasis on proactive risk management.  Risk management involves identifying, assessing, and mitigating hazards to ensure the safety of personnel, the environment, and the integrity of experiments.  Risk management is crucial to laboratory safety for several reasons:

1. Protecting Personnel: Laboratories often deal with hazardous materials, equipment, and processes that can pose risks to the health and safety of personnel. Effective risk management helps identify and mitigate these risks, reducing the likelihood of accidents, injuries, or illnesses among laboratory staff.
2. Preventing Accidents: Laboratories are dynamic environments where accidents can occur due to chemical spills, equipment malfunctions, or procedural errors. By implementing risk management strategies, laboratories can identify potential hazards and implement controls to prevent accidents from happening.
3. Preserving Experiment Integrity: Laboratory experiments and research activities require controlled environments to ensure accurate and reliable results. Effective risk management helps maintain the integrity of experiments by minimizing external factors that could compromise the validity of results, such as contamination or equipment failures.
4. Compliance with Regulations: Laboratories are subject to various regulations and standards governing safety, health, and environmental protection. By implementing risk management practices, laboratories can ensure compliance with regulatory requirements and avoid potential fines, penalties, or legal liabilities.
5. Protecting the Environment: Laboratories often handle hazardous materials that can pose risks to the environment if not managed properly. Risk management helps identify potential environmental hazards and implement measures to prevent pollution, contamination, or environmental damage.
6. Safeguarding Equipment and Infrastructure: Laboratories contain valuable equipment, instrumentation, and infrastructure that require protection from damage or loss. Risk management helps identify risks that could affect laboratory assets and implement measures to safeguard equipment and infrastructure from harm.

By identifying and mitigating risks effectively, laboratories can create safe and productive working environments for all personnel involved in laboratory activities.  A useful tool for this process is the hierarchy of controls, which is a systematic approach used to identify and rank safeguards for protecting workers from hazards in the workplace.  It outlines a sequence of actions, arranged from the most effective to the least effective, to reduce or eliminate exposure to risks.

Let’s explore the five levels of the hierarchy:

1. Elimination:  This involves removing the hazard completely from the workplace.  It is the most effective control measure, but is not always feasible.
2. Substitution:  If eliminating the hazard isn’t possible, substitution can be employed where you replace the hazardous material, process, or equipment with a safer alternative.  When considering a substitute, it’s important to assess potential new risks and ensure they don’t create additional hazards.
3. Engineering Controls:  These are physical modifications or changes to the work environment that isolate workers from the hazard.  Examples include ventilation systems, enclosures, or barriers.  Effective engineering controls operate without user interference and are part of the original equipment design.
4. Administrative Controls:  These controls involve changing the way that people work, including procedures, policies, and training.  This might include rotating workers to minimize exposure, establishing safe work practices, or providing training on hazard awareness.  While administrative controls are less effective than engineering controls, they play an important role in managing risks.
5. Personal Protective Equipment (PPE):  PPE should be the last line of defense against a hazard because it’s typically the least effective because it doesn’t eliminate the hazard.  It only protects the individual and requires proper usage to provide full protection.  When hazards cannot be controlled through other means, PPE is used to protect individuals from exposure.  Examples include gloves, googles, respirators, and protective clothing.

The hierarchy of controls helps prioritize safety measures based on effectiveness and cost.  Implementing a combination of controls provides comprehensive protection for workers and reduces the risk of illness or injury.  Keep in mind that risk management is a continuous process that involves identifying, assessing, controlling, and monitoring risks.  By prioritizing safety, laboratories create a healthier and more productive work environment.