Indoor Air sciences CSMI Practice Exam

Which organization publishes Threshold Limit Values?

1. NIOSH

2. OSHA

3. ACGIH

4. IAQA

The correct answer is: ACGIH

Threshold Limit Values (TLVs) are established to provide guidance on the levels of exposure to various chemical substances and physical agents that are believed to be safe for most workers, without harm. The American Conference of Governmental and Industrial Hygienists (ACGIH) is the organization responsible for publishing TLVs, which are widely recognized and used by industrial hygienists, safety professionals, and regulatory agencies to promote health and safety in the workplace. These values are determined based on scientific research and expert review, aiming to protect employees from potential harmful effects associated with long-term exposure to hazardous substances. Other organizations mentioned, such as NIOSH (National Institute for Occupational Safety and Health), OSHA (Occupational Safety and Health Administration), and IAQA (Indoor Air Quality Association), have different roles and functions. NIOSH conducts research and makes recommendations on occupational safety and health, OSHA sets and enforces workplace safety regulations, and IAQA focuses on indoor air quality issues. However, they do not publish TLVs like ACGIH does. Thus, ACGIH's publication of TLVs is integral in providing standards for acceptable exposure levels in various work environments.