What Does an Industrial Hygiene Consultant Do?
An industrial hygiene consultant evaluates workplace conditions that could affect employee health. The process generally begins with understanding the facility, its operations, employees’ job duties, materials used, and existing safety programs.
Rather than simply walking through a facility and pointing out obvious problems, a qualified consultant uses professional judgment, observations, measurements, sampling, and exposure data to determine whether workers may be exposed to harmful conditions.
OSHA explains that quantitative exposure assessments may involve air sampling and direct-reading instruments. Depending on the workplace, evaluations may also involve full-shift monitoring, task-based sampling, personal sampling, and other techniques.
The exact scope of an assessment depends on the industry and the concerns identified by the employer. A manufacturing plant, laboratory, warehouse, healthcare facility, construction site, and office building can have very different industrial hygiene challenges.
Chemical Exposures
Chemical hazards are one of the most common areas evaluated by an industrial hygiene consultant. Employees may encounter chemicals as liquids, solids, gases, vapors, fumes, mists, dusts, or aerosols.
Examples can include solvents, cleaning agents, paints, adhesives, welding fumes, metalworking fluids, pesticides, and other industrial chemicals.
A consultant may review Safety Data Sheets, chemical inventories, labels, storage practices, handling procedures, ventilation systems, and employee work practices. The goal is to understand how chemicals are used and whether employees could be exposed through inhalation, skin contact, or other routes.
Exposure levels can depend on the toxicity of a substance, its concentration, how frequently it is used, the duration of exposure, and the effectiveness of existing controls. OSHA notes that chemical exposure can occur through inhalation, skin absorption, or ingestion.
When appropriate, an industrial hygiene consultant may conduct personal or area air sampling to determine concentrations in the workplace.
Air Quality and Airborne Contaminants
Indoor and industrial air quality can have a major effect on employee comfort and health. Consultants may investigate airborne contaminants such as dust, fibers, fumes, mists, vapors, gases, and aerosols.
Potential sources can include production processes, combustion equipment, chemical use, welding, grinding, sanding, manufacturing operations, and inadequate ventilation.
The evaluation may include reviewing ventilation systems and determining whether contaminants are being effectively captured or diluted. Sampling can provide information about actual employee exposure rather than relying only on assumptions.
OSHA emphasizes that sampling and analysis must be appropriately designed because workplace conditions and variables can affect the validity of exposure assessments.
Noise Exposure
Excessive workplace noise can contribute to hearing damage and may interfere with communication, concentration, and awareness of surrounding hazards.
An industrial hygiene consultant may measure noise levels throughout a facility and identify employees or job tasks with potentially significant exposure. Personal noise dosimetry may be used when an employee’s exposure varies throughout a work shift.
The consultant may also review existing hearing conservation practices, engineering controls, administrative controls, and hearing protection.
Possible recommendations could include reducing noise at the source, isolating noisy machinery, improving equipment maintenance, changing work practices, limiting exposure duration, or using appropriate hearing protection. OSHA’s industrial hygiene guidance identifies noise as a significant physical hazard requiring evaluation and control.
Heat Stress and Temperature Conditions
Temperature is another workplace condition that can affect employee health and performance. Industrial environments can become particularly hot around furnaces, boilers, ovens, industrial equipment, outdoor work areas, or poorly ventilated spaces.
An industrial hygiene consultant may evaluate environmental conditions and employee work patterns to determine whether heat stress could be a concern.
The evaluation can consider temperature, humidity, workload, clothing, work-rest schedules, hydration practices, acclimatization, and other factors.
A consultant can then recommend measures such as improved ventilation, cooling systems, hydration practices, rest breaks, scheduling changes, or other controls appropriate to the work environment.
Biological Hazards
Biological hazards can occur in many different workplaces. They may include bacteria, viruses, fungi, mold, animal materials, infectious agents, or other biological contaminants.
Healthcare facilities, laboratories, food processing operations, agricultural businesses, wastewater facilities, and buildings affected by moisture can have different types of biological concerns.
OSHA identifies biological hazards as an important industrial hygiene category and notes that workplace exposures can include infectious organisms, mold, and materials associated with animals or plants.
An industrial hygiene consultant may evaluate potential sources, employee activities, ventilation, moisture conditions, cleaning procedures, and exposure pathways. Depending on the concern, sampling or other investigative methods may be appropriate.
Ventilation and Engineering Controls
Ventilation is an important part of controlling airborne workplace hazards. A consultant may evaluate whether general building ventilation and local exhaust systems are functioning effectively.
For example, a facility may have a local exhaust hood intended to capture welding fumes or chemical vapors. Simply having the equipment installed does not necessarily mean it is adequately controlling exposure.
The consultant may examine airflow, capture effectiveness, system design, maintenance, and employee work practices. If existing controls are insufficient, recommendations may focus on improving engineering controls before relying solely on personal protective equipment.
OSHA’s industrial hygiene guidance emphasizes engineering and work-practice controls as important methods for reducing exposures, with administrative controls and PPE also playing roles when appropriate.
Ergonomic Hazards
Industrial hygiene can also involve ergonomic evaluations. Employees may experience risks from repetitive motions, awkward postures, forceful exertion, lifting, pushing, pulling, reaching, or prolonged standing.
An industrial hygiene consultant may observe how employees perform their tasks and evaluate workstation design, tools, equipment, production speed, and movement patterns.
OSHA identifies heavy lifting, repetitive motions, work above shoulder height, and vibration among ergonomic risk factors that may need evaluation.
Recommendations may include redesigning workstations, modifying tools, adjusting material-handling procedures, changing task rotation, or improving employee work practices.
Surface and Dermal Exposure
Not every exposure occurs through breathing. Chemicals and other contaminants can also contact workers’ skin or contaminate surfaces.
An industrial hygiene consultant may evaluate whether employees could encounter hazardous materials through direct skin contact or contaminated equipment, tools, workstations, clothing, or other surfaces.
Depending on the situation, surface or wipe sampling may be used to investigate contamination. OSHA recognizes surface contamination as a potential exposure concern and identifies wipe sampling as one method for evaluating dermal exposure.
This type of evaluation can be especially useful when employees handle chemicals or when contamination may be transferred from one area to another.
Personal Protective Equipment
Personal protective equipment can be an important component of a workplace health program, but an industrial hygiene consultant typically looks at more than whether employees are wearing gloves, respirators, goggles, or protective clothing.
The consultant may determine whether the selected PPE is appropriate for the identified hazard, whether employees are using it correctly, and whether additional controls should be implemented.
OSHA notes that PPE should be properly selected, fitted, maintained, and replaced when necessary.
For respirator use, the assessment may also involve reviewing the workplace exposure, respiratory protection procedures, fit testing, medical evaluation requirements, cartridge selection, and other elements of the applicable program.
Exposure Sampling and Data Analysis
One of the most valuable services an industrial hygiene consultant can provide is objective exposure measurement.
Sampling strategies depend on the hazard and work activity. Personal samples can help determine what an employee experiences during a shift, while area samples can provide information about conditions in a particular location.
Results may be compared with applicable occupational exposure limits or other professional exposure criteria. OSHA notes that exposure assessments may consider OSHA permissible exposure limits, NIOSH recommended exposure limits, ACGIH threshold limit values, and other applicable criteria.
The consultant must also consider sampling duration, employee activities, production conditions, analytical methods, and other factors when interpreting results.
Workplace Practices and Employee Activities
A workplace can have excellent written policies while actual working conditions tell a different story. For this reason, an industrial hygiene consultant observes how work is really performed.
The assessment may consider how employees handle chemicals, operate equipment, clean workspaces, perform maintenance, move materials, use ventilation systems, and wear PPE.
Employee interviews can also provide important information. Workers often know which tasks create odors, dust, fumes, excessive heat, or other conditions because they experience those conditions directly.
OSHA recognizes employees as valuable resources when identifying workplace hazards and recommends considering worker input during hazard assessments.
Existing Safety and Health Programs
An industrial hygiene evaluation may also include a review of the company’s existing health and safety programs.
Depending on the workplace, this can include hazard communication, respiratory protection, hearing conservation, PPE, exposure monitoring, emergency procedures, medical surveillance, chemical management, and other programs.
A consultant may compare written procedures with actual workplace practices and identify opportunities for improvement.
This is particularly useful when a business has experienced operational changes, introduced new chemicals or equipment, expanded production, or received employee concerns about workplace conditions.
What Happens After the Evaluation?
The evaluation does not end when sampling equipment is removed or the site visit is completed. The consultant analyzes observations and data and develops findings based on the assessment.
If elevated exposures or other hazards are identified, recommendations may address the hierarchy of controls. Solutions can include eliminating the hazard, substituting a safer material, improving engineering controls, changing work practices, implementing administrative controls, or using PPE where appropriate.
A professional report can also give management a clearer understanding of priorities and recommended corrective actions.
The goal is not simply to produce a list of problems. The goal is to help an employer understand exposures and make practical improvements that protect employees.
Why Businesses Should Consider an Industrial Hygiene Consultant
Workplace health hazards are not always visible. Some gases and vapors can be difficult to detect without appropriate instruments, while other risks may develop gradually through repeated exposure.
Hiring an industrial hygiene consultant can provide an objective assessment of workplace conditions and help businesses make informed decisions about controls, monitoring, employee protection, and safety programs.
Industrial hygiene consultants assess exposures to keep Ohio workplaces safe. Their work can help employers identify potential concerns before they become more serious problems.
Whether a company needs chemical exposure testing, noise monitoring, indoor air quality evaluation, ventilation assessment, ergonomic review, or a broader workplace health assessment, professional industrial hygiene support can provide valuable insight.
For organizations seeking practical assistance with workplace exposure concerns, an industrial hygiene consultant can serve as an important resource for understanding hazards and developing effective controls.
FAQs
What is an industrial hygiene consultant?
An industrial hygiene consultant is a professional who evaluates workplace conditions that could cause employee illness or injury. Areas of evaluation can include chemical, biological, physical, airborne, ergonomic, and other occupational health hazards.
When should a business hire an industrial hygiene consultant?
Businesses may consider hiring a consultant when employees report health concerns, when new chemicals or processes are introduced, when exposure levels are uncertain, after significant operational changes, or when management wants an independent workplace exposure assessment.
What does an industrial hygiene consultant test for?
Testing depends on the workplace. It may include airborne chemicals, dust, fumes, vapors, noise, heat, biological contaminants, surface contamination, and other occupational hazards.
Does industrial hygiene only apply to factories?
No. Industrial hygiene principles can apply to manufacturing facilities, construction sites, warehouses, healthcare facilities, laboratories, offices, schools, commercial buildings, and many other workplaces.
Why is workplace exposure sampling important?
Sampling provides objective information about employee exposure. Instead of relying only on visual observations or employee complaints, measurements can help determine whether a particular hazard is present at a potentially harmful level.
Can an industrial hygiene consultant recommend corrective actions?
Yes. After evaluating workplace conditions, a consultant can recommend strategies for reducing or eliminating exposures. Recommendations may involve engineering controls, work-practice changes, administrative controls, PPE, additional monitoring, or other measures.
Is PPE enough to control an industrial hygiene hazard?
PPE can be an important part of worker protection, but it is not always the preferred first solution. Depending on the hazard, employers may also need to consider elimination, substitution, engineering controls, work-practice controls, or administrative measures.
