Chemical and biological substances are present in almost every industry, from manufacturing and mining to healthcare and laboratories. Understanding how these hazardous agents affect human health is crucial for protecting workers and maintaining compliance with international safety standards.

The OHTA 507 (W507) – Health Effects of Hazardous Substances course provides occupational health professionals with a detailed understanding of how harmful substances interact with the human body, supporting better risk assessment and exposure control.

What Is OHTA 507 (W507)?

OHTA 507 (W507) is a core module in the Occupational Hygiene Training Association (OHTA) 500 Series and focuses on:

• Toxicology fundamentals – how hazardous substances enter, distribute, and are eliminated from the body

• Dose-response relationships – understanding exposure levels and health outcomes

• Acute and chronic effects of chemical, physical, and biological hazards

• Target organs and biological systems affected by toxins

• Occupational exposure limits (OELs, TLVs, and standards)

• Health surveillance and biological monitoring techniques

This course blends theoretical principles with practical examples to prepare participants for real-world occupational hygiene decision-making.

Why Is W507 Training Important?

Every workplace using hazardous materials faces risks such as respiratory disease, skin disorders, nervous system damage, or cancer. By understanding the mechanisms of toxic effects, occupational hygienists can:

• Perform more accurate risk assessments

• Recommend effective exposure controls

• Ensure compliance with global safety standards

• Reduce long-term occupational illnesses and liabilities

• Support ISO 45001 and corporate health management programs

Who Should Take OHTA W507?

This course is suited for:

• Occupational hygienists and HSE managers

• Environmental health professionals

• Industrial safety engineers

• Laboratory and process safety staff

• Professionals working toward the INTERNATIONAL CERTIFICATE IN OCCUPATIONAL HYGIENE TRAINING ASSOCIATION (ICertOHTA) qualification

Course Format and Certification

OHTA 507 (W507) is delivered worldwide through accredited providers and includes:

• In-depth lectures on occupational toxicology

• Case studies of hazardous exposure incidents

• Practical exercises to link theory with workplace conditions

• A written assessment to confirm understanding

Successful participants earn an internationally recognized certificate that contributes toward the ICertOHTA pathway.

Why Choose JAB International Consultancy?

At JAB International Consultancy, we deliver high-quality OHTA 507 (W507) training programs, taught by experienced occupational hygiene specialists. Our approach combines global best practices with practical industrial insights to ensure learners can apply this knowledge immediately.

To explore additional resources on occupational toxicology, refer to the World Health Organization (WHO) Chemical Safety Programme.

Conclusion

The OHTA 507 (W507) – Health Effects of Hazardous Substances course is an essential component for anyone serious about protecting worker health. By mastering how hazardous agents affect the human body, professionals can design better control programs, meet regulatory requirements, and progress toward ICertOHTA certification.