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DNA Industrial Hygiene

The professionals resource
License Number 773462
Classifications A Haz

Industrial Hygiene Services

Protecting Worker Health Through Science‑Driven Evaluation and Monitoring

DNA Industrial Hygiene Consulting provides comprehensive industrial hygiene services designed to protect workers, ensure regulatory compliance, and support safe, productive operations. Led by Certified Industrial Hygienists (CIH) with more than 40 years of experience, we deliver accurate assessments, clear recommendations, and defensible documentation for clients across California and nationwide.
Our work is grounded in scientific rigor, regulatory expertise, and practical field experience.

Our Industrial Hygiene Capabilities
Exposure Assessment & Monitoring

We evaluate worker exposure to chemical, physical, and biological hazards using validated sampling methods and calibrated instrumentation.
Services include:
  • Airborne contaminant monitoring (dust, fibers, vapors, gases)
  • Personal and area sampling
  • Exposure profiling and task‑based assessments
  • Real‑time monitoring and data logging
  • Chemical hazard evaluations
  • Exposure modeling and interpretation
  • Recommendations for engineering and administrative controls
Deliverables: Clear, defensible exposure reports | Compliance determinations | Control strategies aligned with OSHA, NIOSH, and ACGIH guidelines
Indoor Air Quality & Building Health

We investigate building conditions that affect occupant comfort, productivity, and health.
Services include:
  • Indoor air quality (IAQ) investigations
  • Tight building syndrome evaluations
  • Ventilation assessments
  • Moisture and microbial evaluations
  • Complaint response and root‑cause analysis
  • HVAC performance review
  • Recommendations for corrective actions
Applications: Offices, schools, healthcare facilities, industrial buildings, restaurants, and municipal structures.
Noise & Hearing Conservation

We help organizations evaluate and control occupational noise exposure.
Services include:
  • Personal noise dosimetry
  • Area noise mapping
  • Equipment noise characterization
  • Hearing conservation program development
  • Engineering and administrative control recommendations
Compliance: OSHA, MSHA, and state requirements.
Mold and fungus (Viable Hazards) Assessment

We assess microbiological hazards in workplaces where exposure risks may be present.
Services include:
  • Microbial sampling
  • Bioaerosol evaluations
  • Allergen and endotoxin assessments
  • Moisture intrusion investigations
  • Laboratory coordination and interpretation
Biological Monitoring

Often considered the gold standard of employee or personal exposure. Body fluids are analyzed for the stressors or the metabolites of various substances. Several OSHA Standards require Biological Monitoring, it is the nexus between the Medical Profession and Industrial Hygiene.
Service include:
  • Biological sample collection & analysis
  • Biomarker testing for specific exposures such as
    • Heavy metals,
    • Solvents
    • Pesticides & herbicides
    • Polycyclic aromatic hydrocarbons
    • Isocyanates
    • Carbon monoxide
  • Exposure investigation and root-cause analysis
  • Laboratory coordination and interpretation
Compliance Surveys & Audits

We conduct comprehensive evaluations to help organizations meet regulatory requirements and industry best practices.
Services include:
  • OSHA compliance surveys
  • Hazard communication program review
  • Respiratory protection program evaluation
  • PPE assessments
  • Facility walkthroughs and risk identification
  • Benchmark surveys
Outcome: Actionable recommendations that reduce risk and improve compliance.
Operations & Maintenance (O&M) Programs

We develop and implement O&M programs for facilities with asbestos, lead, or other regulated materials.
Services include:
  • Program development and updates
  • Staff training and awareness
  • Periodic inspections
  • Recordkeeping systems
  • Response protocols
Expert Witness & Litigation Support

Our CIH‑led team provides defensible, science‑based support for legal matters involving industrial hygiene, environmental exposure, and regulatory compliance.

Services include:
Case review and analysis
Expert reports
Deposition and testimony
Regulatory interpretation
Historical exposure reconstruction
Litigation Bonafides



For this service, please call Dan directly for a conversation on specifics. 310-644-1924 x 103

Why Clients Choose DNA

CIH‑Led Expertise - All major projects are overseen by Certified Industrial Hygienists with decades of field experience.
Clear, Defensible Reporting - Our documentation is structured for regulatory review, legal defensibility, and practical decision‑making.
Responsive Field Support - We mobilize quickly for urgent needs, including IAQ complaints, water intrusion, asbestos/lead disturbances, and environmental releases.
Comprehensive Capabilities - Industrial hygiene, environmental assessment, remediation oversight, and training — all under one roof.
Trusted Since 1982 - A long‑standing reputation for accuracy, professionalism, and client‑focused service.

Industries We Serve

Schools & Universities | Healthcare & Medical Facilities | Industrial & Manufacturing | Construction & Engineering | Real Estate & Property Management | Municipal & Government Agencies | Utilities & Infrastructure | Legal & Insurance Professionals
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