Glossary and Acronyms

Acute Exposure
Short term exposure
CAA/CAAA
Clean Air Act/Clean Air Act Amendments of 1990
Carcinogen
Material which either causes cancer in humans or because it causes cancer in animals is considered to be capable of causing cancer in humans.
CERCLA
The Comprehensive Environmental Response, Compensation, and Liability Act. Created the Superfund to finance the cleanup of abandoned hazardous waste dumpsites.
CHEMTREC
Center in Washington, DC to provide emergency information on materials involved in transportation accidents. 24-hour number is 800-424-9300.
Chronic Exposure
Long term exposure
CNS
Central Nervous System
CNS Depression
Drowsiness, dizziness and/or headache caused by a chemical exposure. Extreme symptoms may include unconsciousness, coma or death.
CO
Carbon Monoxide
CO2
Carbon Dioxide
COC
Cleveland Open Cup Test. One test method for determining flash points.
Combustible
Liquid
Under DOT, a liquid with a flash point above 141°F. but below 200°F.
CFR
Code of Federal Regulations. The printed forum for all federal regulations. Each agency or groups of agencies are found under a different code. For example, EPA is found in Title 40; OSHA under Title 29; and DOT under Title 49.
CWA
Clean Water Act
Dermatitis
Skin rash; inflammation of skin
DOT
The Department of Transportation
DOT ID #s
Four-digit numbers used to identify particular materials for purposes of transportation. UN is for both domestic and international transportation; NA is for domestic transportation only.
EINECS
The European Inventory of Existing Chemical Substances. A list of chemical substances that were marketed in the European Community between 1/1/71 and 9/18/81. Rules for inclusion of substances were different that US TSCA regulations.
EPA
The Environmental Protection Agency
FIFRA
The Federal Insecticide, Fungicide and Rodenticide Act . Regulation of pesticides including biocides.
Flammable
Liquid
Under RCRA and DOT, a liquid with a flash point at or below 141°F.
HAP
Hazardous Air Pollutant under Clean Air Act Amendments of 1990
HMIS
Hazardous Material Identification System
IARC
International Agency for Research on Cancer. One of the sources of data on a material’s carcinogenicity.
Mutagen
Material that induces genetic changes in the DNA.
LC50
The amount necessary to kill half the test animal population in an inhalation study.
LD50
The amount necessary to kill half the test animal population in an oral ingestion study.
NFPA
National Fire Protection Association
NIOSH
The National Institute for Occupation Safety and Health
NO2
Nitrous Oxides
NTP
National Toxicology Program. One of the sources for information on a material’s carcinogenicity.
OSHA
The Occupational Safety and Health Administration
PAH
Polyaromatic Hydrocarbons. Also called PNAs (polynuclear aromatics) or PCAs (polycyclic aromatics). Cyclic hydrocarbons of which many of these materials are carcinogenic or are converted to carcinogens when metabolized by animals or humans. In Europe, the level of PAHs in mineral oil determines whether these oils are labeled as carcinogenic.
PEL
Permissible Exposure Limit. An eight hour time weighted average level at which the majority of employees may be exposed to without undue health effects. Established by OSHA and listed in 29 CFR 1910.1000.
PMCC
Pensky-Martens Closed Cup Tester. One test method for determining flash points.
POTW
Publicly Owned Treatment Works (Sewer Authority)
ppb
Parts per billion
ppm
Parts per million
RCRA
The Resource Conservation and Recovery Act. Covers hazardous waste disposal.
SARA
Superfund Amendments of Reauthorization Act of 1986. Reauthorized the Superfund regulations and created the Community Right-to-Know regulations.
SO2
Sulfur Oxides
STEL
Short-term exposure limit – usually 15 minutes.
TCC
Tag Closed Cup Tester. One test method for determining flash points.
Teratogen
Material capable of causing physical defects in a developing embryo.
TLV
Threshold Limit Value. An eight hour time weighted average level at which the majority of employees may be exposed to without undue health effects. Established by the ACGIH.
TSCA
The Toxic Substances Control Act
TSCA Inventory
Inventory of chemical substances in commerce in the United States between 1973 and 1975 and those materials for which PMNs have been issued.
VOCs
Volatile Organic Compounds

 

THIS INFORMATION IS FOR EDUCATIONAL PURPOSES ONLY.

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