| ACGIH |
American Conference of Industrial Hygienists |
| AEGL |
Acute Exposure Guideline Levels (AEGLs represent one-time threshold exposure limits for the general public and are applicable to emergency exposure periods ranging from 10 minutes to 8 hours) |
| CERCLA |
Comprehensive Environmental Response, Compensation, and Liability Act (a.k.a. "Superfund") |
| DOT |
U.S. Department of Transportation |
| EPA |
U.S. Environmental Protection Agency |
| EPCRA |
Emergency Planning and Community Right-to-Know Act |
| FDA |
U.S. Food and Drug Administration |
| IARC |
International Agency for Research on Cancer |
| IRIS |
Integrated Risk Information System (EPA’s database of non-cancer and cancer risk information on more than 500 chemical substances) |
| NTP |
National Toxicology Program (A U.S. interagency program that evaluates chemical hazards) |
| OSHA |
U.S. Occupational Health and Safety Administration |
| PEL |
Permissible Exposure Limit (legal limit for worker exposure, expressed here as an 8-hour TWA) |
| RCRA |
Resource Conservation and Recovery Act |
| RFD/RFC |
Reference Dose/Reference Concentration (an estimate of daily oral/inhalation exposure to the human population (including sensitive subgroups) that is likely to be without an appreciable risk of deleterious non-cancer effects during a lifetime) |
| SARA |
Superfund Amendments and Reauthorization Act |
| STEL |
Short Term Emission limit (spot exposure for a duration of 15 minutes) |
| TLV |
Threshold Limit Value (guideline level of exposure that a typical worker can experience each day without unreasonable risk of injury) |
| TRI |
Toxic Release Inventory |
| TWA |
Time Weighted Average (average exposure during an 8-hour work shift) |
| VOCs |
Volatile Organic Compounds |
