Abbreviations

ACGIH American Conference of Governmental Industrial Hygienists
AEGL acute exposure guideline level
AIHA American Industrial Hygiene Association
ATSDR Agency for Toxic Substances and Disease Registry
BMCL05 benchmark concentration with its lower confidence limit at a 5% extra risk
BZ 3-quinuclidinyl benzilate
ºC degree Celsius
CAC chloroacetyl chloride
CEELs community emergency exposure levels
COPD chronic obstructive pulmonary disease
DCA dichloroacetic acid
DCAC dichloroacetyl chloride
DCE dichloroethylene
EHS extremely hazardous substances
EPA U.S. Environmental Protection Agency
ERPG emergency response planning guidelines
h hour
HN-1, -2, -3 nitrogen mustards
IARC International Agency for Research on Cancer
ICt50 concentration and time of a substance causing incapacitation in 50% of an exposure population
IDLH immediately dangerous to life or health
IRIS Integrated Risk Information System
L liter
LC01 lethal concentration to 1% of the exposed population
LCL lower confidence limit
LC50 lethal concentration to 50% of the exposed population
LCt50 concentration and time of a substance that is lethal to 50% of an exposed population
LOA level of odor awareness
LOAEL lowest observed adverse effect level
LOEL lowest observed effect level
mg/m3 milligrams/cubic meter
MF modifying factor
min minute
MITC methyl isothiocyanate
mmHg millimeters of mercury
MSD material safety and data sheet


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Abbreviations ACGIH American Conference of Governmental Industrial Hygienists AEGL acute exposure guideline level AIHA American Industrial Hygiene Association ATSDR Agency for Toxic Substances and Disease Registry BMCL05 benchmark concentration with its lower confidence limit at a 5% extra risk BZ 3-quinuclidinyl benzilate ºC degree Celsius CAC chloroacetyl chloride CEELs community emergency exposure levels COPD chronic obstructive pulmonary disease DCA dichloroacetic acid DCAC dichloroacetyl chloride DCE dichloroethylene EHS extremely hazardous substances EPA U.S. Environmental Protection Agency ERPG emergency response planning guidelines h hour HN-1, -2, -3 nitrogen mustards IARC International Agency for Research on Cancer ICt50 concentration and time of a substance causing incapacitation in 50% of an exposure population IDLH immediately dangerous to life or health IRIS Integrated Risk Information System L liter LC01 lethal concentration to 1% of the exposed population LCL lower confidence limit LC50 lethal concentration to 50% of the exposed population LCt50 concentration and time of a substance that is lethal to 50% of an exposed population LOA level of odor awareness LOAEL lowest observed adverse effect level LOEL lowest observed effect level mg/m3 milligrams/cubic meter MF modifying factor min minute MITC methyl isothiocyanate mmHg millimeters of mercury MSD material safety and data sheet 52

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NAC National Advisory Committee on Acute Exposure Guideline Levels for Hazardous Substances NIOSH National Institute for Occupational Safety and Health NOAEL no observed adverse effect level NOEL no observed effect level NRC National Research Council OEL occupational exposure limit PEL permissible exposure limit POD point of departure ppb parts per billion ppm parts per million RD50 concentration of a substance that reduced the respiratory rate of test organisms by 50% REL recommended exposure limit SOP standing operating procedures STEL short-term exposure limit TLV Threshold Limit Value TRI Toxics Release Inventory TSD technical support document TWA time-weighted average μg microgram UF uncertainty factor URL uniform resource locator WEEL workplace environmental exposure limit 53