OHTA 507– Health Effects of Hazardous Substances

Open Now for Registration…. www.ohta.proskyllz.com – Early access to eLearning. Proposed OHTA Online Exam on 06.11.2026 Friday (Call/Connect with us on WhatsApp +965 9929 5562 for latest updates)

Course Overview

• To provide an understanding of occupational hygiene for people who need to manage or advise on workplace health issues
• To provide a foundation from which to undertake more in-depth study in individual occupational hygiene subjects
• The course is a core module for the International Certificate in Occupational Hygiene (ICertOHTA).

Suitable for

• HSE/ Health and safety professionals.
• Occupational health specialists (including physicians, Doctors and nurses).
• Other specialists wishing to interface on workplace health issues (e.g. acoustics, ergonomics, human factors, occupational psychology, bio safety, lab,  engineering, or analytical chemistry).

Learning Outcomes

Aims

• Introduce you to toxicology, physiology and epidemiology.
• Identify chemical substances hazardous to health at work and their harmful effects on target organs.

You will learn to

• Define commonly used toxicological terms.
• Know the main routes by which hazardous substances can enter the body, and the factors which influence their absorption, distribution, storage and elimination.
• Know where to find information on hazardous substances and processes.
• Understand the principal target organs affected by hazardous substances at work, and the factors influencing harm.
• Know the main routes of exposure and toxic and health effects for hazardous substances commonly encountered in the workplace.
• Interpret results from epidemiological studies.

Course Format

Online/ E-learning LMS platform is Opened now  till exam date.

Online sessions with Tutor (CIH/CSP Certified) in between 27 Oct to 5 Nov 2026.

Proposed OHTA Online Exam on sat 06.11.2026. (Total 60 MCQ in 150 minutes). Detailed intimation & guidelines will be provided to all registered Students.

Course Content

The OHTA 507 – Health Effects of Hazardous Substances is organised into the following  sessions/topics:

• Basic Human Biology and Target Organs
  Organ Systems including Skin
  Structure and Function
  Dose-Response Curves and Toxicity Testing
• Epidemiology
  Epidemiological Terms
  Types of Epidemiological Studies
• Health Effects Associated with Specific Materials
  Organic Solvents and Vapors
  Metals and Metal Compounds
  Dusts, Particulate Materials, and Mineral Fibers
• Health Effects Associated with Specific Industrial Processes
  Materials Handling of solids, powders, and liquids
  Metals, Surface Coating and treatment of metal
  Soldering and Brazing
  Degreasing and Painting
• Profiles on Select Industrial Processes that Use or Produce Hazardous Substances
  Smelting and Refining of Iron and Steel
  Foundries
  Mining and Quarrying
  Oil and Petroleum
  Pharmaceuticals
• Regulatory Considerations and Sources of Information
  Biological Hazards
  Legionella and Humidifier Fever
  Blood Borne Diseases
  Zoonoses, Molds, and Pandemics