1. Defining Industrial Hygiene (IH) in Construction
Industrial Hygiene is defined as the science of anticipating, recognizing, evaluating, and controlling workplace conditions that may cause worker injury or illness [01:21]. While traditional safety often focuses on immediate physical hazards (like falls), IH focuses on "the invisible killers"—health hazards that may take years to manifest, such as respiratory illnesses [03:15].
2. The Focus Areas (Environmental Stressors)
Mike Strum outlines the primary stressors they monitor on construction sites:
Chemical Hazards: Dust (Silica), fumes, mists, and vapors [04:45].
Physical Hazards: Noise, vibration, and extreme temperatures [05:30].
Biological Hazards: Mold, fungi, and bacteria [06:15].
3. Silica Dust Management
A significant portion of the webinar is dedicated to Crystalline Silica [12:30]. Strum explains that while OSHA's Table 1 provides a "cheat sheet" for compliance, Jacobsen often performs their own air monitoring to ensure that their engineering controls (like HEPA vacuums and wet-cutting) are actually keeping exposure below the Action Level [15:45].
4. Noise and Hearing Conservation
The webinar highlights that hearing loss is one of the most common "invisible" injuries in construction [22:10]. They discuss:
Noise Dosimetry: Using devices to measure a worker's total noise exposure over an 8-hour shift [24:00].
Buy Quiet Program: Preferring the purchase or rental of tools that operate at lower decibel levels [26:30].
5. Implementation Strategy: The "Four Steps"
Strum describes Jacobsen's approach to IH as a four-step process:
Anticipation: Reviewing the scope of work to identify potential health risks before they start [32:00].
Recognition: Walking the site to see where dust, noise, or chemicals are present [33:15].
Evaluation: Using specialized equipment (pumps, cassettes, and sound meters) to gather data [35:00].
Control: Applying the Hierarchy of Controls, prioritizing elimination and engineering controls over PPE (Personal Protective Equipment) [40:00].
6. The Value of Data
The webinar emphasizes that having written reports and analytical data protects both the worker and the company [48:20]. By proving that exposure levels are low, the company can often reduce the need for expensive medical surveillance programs or respirator fit-testing [50:15].
