Lesson 3.3: Risk Assessment for Fieldwork, Making and Experimentation

Introduction

In any research or project involving fieldwork, laboratory work, or practical making, assessing risks is crucial. Before embarking on these tasks, it is important for students to consider not only what they will be doing but also what could potentially go wrong and how they can minimize harm. This lesson will cover essential aspects of risk assessment, including identifying hazards, evaluating their likelihood and severity, implementing controls, and completing a risk-assessment form. By ensuring that ethical considerations guide your preparation, you can engage in your project responsibly and effectively.

Learning Objectives

At the end of this lesson, students will be able to:

• Identify hazards in fieldwork, workshops, laboratories, and artifact creation.
• Assess the likelihood and severity of each risk in plain terms.
• Implement controls to reduce risks to participants and the researcher.
• Recognize safety considerations specific to science and engineering projects.
• Complete a simple risk-assessment form prior to commencing work.

Understanding Risk Assessment

Risk assessment is a systematic process of evaluating potential risks that could be involved in a projected activity or undertaking, which typically involves the following steps:

1. Hazard Identification: Recognizing anything that may cause harm.
2. Risk Evaluation: Assessing the likelihood of the hazard resulting in harm and determining the severity of that harm.
3. Control Measures: Identifying steps to eliminate or minimize the risks.
4. Documentation: Recording the findings and making the risk assessment accessible.

Hazard Identification

When identifying hazards, it is crucial to consider the environment and the specific activities involved in your project. Hazards can be physical, chemical, biological, ergonomic, or psychological.

Types of Hazards

1. Physical Hazards: These include items or conditions that can cause injury, such as sharp tools, heavy lifting, or wet floors.
2. Chemical Hazards: Substances that can cause harm, including reagents used in experiments or chemicals in cleaning products.
3. Biological Hazards: Living organisms or their products that could pose a risk, such as bacteria or fungi.
4. Ergonomic Hazards: Ignoring proper posture when working can lead to musculoskeletal injuries.
5. Psychological Hazards: Stress, fatigue, or harassment that may affect mental well-being.

Example: Identifying Hazards in a Laboratory

Consider a biology laboratory where students are conducting experiments with live cultures and chemicals:

• Physical Hazards: Glassware that can break, sharp instruments, electrical equipment.
• Chemical Hazards: Toxic reagents, flammable solvents, corrosive substances.
• Biological Hazards: Pathogenic bacteria or viruses in culture.
• Ergonomic Hazards: Poor workstation setup leading to back strain.
• Psychological Hazards: High-pressure environment during tests.

Risk Evaluation

Once hazards are identified, the next step is to evaluate the associated risks. This can be done using a simple scale to determine the likelihood and severity of each risk:

• Likelihood is assessed on a scale from 1 (rare) to 5 (almost certain).
• Severity is rated from 1 (insignificant) to 5 (catastrophic).

By multiplying these two values, you can calculate the Risk Rating:

$$\text{Risk Rating} = \text{Likelihood} \times \text{Severity}$$

Example: Evaluating Risks and Calculating Risk Ratings

Let’s evaluate two identified risks from the previous laboratory example:

1. Spill of a corrosive chemical:

• Likelihood: 3 (Possible)
• Severity: 4 (Major)
• Risk Rating: $$3 \times 4 = 12$$

1. Cut from glassware:

• Likelihood: 2 (Unlikely)
• Severity: 5 (Catastrophic)
• Risk Rating: $$2 \times 5 = 10$$

Control Measures

Control measures can significantly reduce risks, and they can be categorized into several types:

1. Elimination: Completely removing the risk (e.g., using non-toxic alternatives).
2. Substitution: Replacing a hazardous element with a less hazardous one (e.g., using less toxic chemicals).
3. Engineering Controls: Physical changes to the workspace (e.g., safety shields, proper ventilation).
4. Administrative Controls: Implementing policies or guidelines (e.g., safety training, proper lab procedures).
5. Personal Protective Equipment (PPE): Equipment worn to minimize exposure (e.g., goggles, gloves, lab coats).

Example: Implementing Control Measures

Continuing with our laboratory example, here is how you might implement control measures:

• For the risk of chemical spills, make sure that:
• All chemical containers are labeled clearly.
• Secondary containment is used.
• A spill kit is readily available.
• For cuts from glassware:
• Provide glass safety training for students.
• Use unbreakable plastics whenever possible.
• For ergonomic issues:
• Arrange workstations to promote proper posture and take regular breaks.

Completing a Risk-Assessment Form

A risk-assessment form is essential for documenting the entire assessment process. It should contain sections for:

1. Title of the project.
2. Date and person completing the assessment.
3. A summary of identified hazards.
4. Likelihood and severity ratings.
5. Proposed control measures.
6. The overall risk rating after controls are applied.

Example of a Simple Risk-Assessment Form

| Project Title                  | Date           | Assessor         |  
|---------------------------------|-----------------|-------------------|  
| Risk Description                | Likelihood (1-5)   | Severity (1-5)    |  
| Spill of corrosive chemical     | 3                   | 4                 |  
| Cut from glassware              | 2                   | 5                 |  
|                                |                   |                   |  
| Proposed Control Measures        |  
| Use clearly labeled containers   |  
| Provide glass training           |  
| Maintain appropriate personal protective equipment |  

Always remember to review and update the risk assessment as necessary, particularly if any changes occur in the environment or procedures.

Conclusion

Risk assessment is a critical aspect of ethical research practice in fieldwork, making, and experimentation. By identifying hazards, evaluating risks, implementing control measures, and maintaining thorough documentation, students can ensure the safety and well-being of all participants involved in their project. This proactive approach can prevent accidents and create a positive environment conducive to successful learning and collaboration.

Study Notes

• Risk assessment is essential for any project involving fieldwork or laboratory activities.
• Identify hazards: physical, chemical, biological, ergonomic, and psychological.
• Evaluate risks using a simple likelihood and severity scale.
• Implement controls to mitigate risks, including elimination, substitution, engineering controls, administrative controls, and personal protective equipment.
• Complete a risk-assessment form to document hazards and control measures before starting the project.