APPENDIX CACRONYMS, ABBREVIATIONS, AND SYMBOLS

Publication Details

ACGIH

American Conference of Governmental Industrial Hygienists

ADI

Acceptable Daily Intake

ADME

Absorption, Distribution, Metabolism, and Excretion

AFID

alkali flame ionization detector

AFOSH

Air Force Office of Safety and Health

AML

acute myeloid leukemia

AOAC

Association of Official Analytical Chemists

atm

atmosphere

ATSDR

Agency for Toxic Substances and Disease Registry

AWQC

Ambient Water Quality Criteria

BAT

Best Available Technology

BCF

bioconcentration factor

BEI

Biological Exposure Index

BSC

Board of Scientific Counselors

C

Centigrade

CAA

Clean Air Act

CAG

Cancer Assessment Group of the U.S. Environmental Protection Agency

CAS

Chemical Abstract Services

CDC

Centers for Disease Control and Prevention

CEL

Cancer Effect Level

CELDS

Computer-Environmental Legislative Data System

CERCLA

Comprehensive Environmental Response, Compensation, and Liability Act

CFR

Code of Federal Regulations

Ci

curie

CL

ceiling limit value

CLP

Contract Laboratory Program

cm

centimeter

CML

chronic myeloid leukemia

CNS

central nervous system

CPSC

Consumer Products Safety Commission

CWA

Clean Water Act

d

day

Derm

dermal

DHEW

Department of Health, Education, and Welfare

DHHS

Department of Health and Human Services

DNA

deoxyribonucleic acid

DOD

Department of Defense

DOE

Department of Energy

DOL

Department of Labor

DOT

Department of Transportation

DOT/UN/

Department of Transportation/United Nations/

NA/IMCO

North America/International Maritime Dangerous Goods Code

DWEL

Drinking Water Exposure Level

ECD

electron capture detection

ECG/EKG

electrocardiogram

EEG

electroencephalogram

EEGL

Emergency Exposure Guidance Level

EPA

Environmental Protection Agency

F

Fahrenheit

F1

first-filial generation

FAO

Food and Agricultural Organization of the United Nations

FDA

Food and Drug Administration

FEMA

Federal Emergency Management Agency

FIFRA

Federal Insecticide, Fungicide, and Rodenticide Act

FPD

flame photometric detection

fpm

feet per minute

ft

foot

FR

Federal Register

g

gram

GC

gas chromatography

Gd

gestational day

gen

generation

GLC

gas liquid chromatography

GPC

gel permeation chromatography

HPLC

high-performance liquid chromatography

hr

hour

HRGC

high resolution gas chromatography

HSDB

Hazardous Substance Data Bank

IDLH

Immediately Dangerous to Life and Health

IARC

International Agency for Research on Cancer

ILO

International Labor Organization

in

inch

IRIS

Integrated Risk Information System

Kd

adsorption ratio

kg

kilogram

kkg

metric ton

Koc

organic carbon partition coefficient

Kow

octanol-water partition coefficient

L

liter

LC

liquid chromatography

LCLo

lethal concentration, low

LC50

lethal concentration, 50% kill

LDLo

lethal dose, low

LD50

lethal dose, 50% kill

LT50

lethal time, 50% kill

LOAEL

lowest-observed-adverse-effect level

LSE

Levels of Significant Exposure

m

meter

MA

trans,trans-muconic acid

MAL

Maximum Allowable Level

mCi

millicurie

MCL

Maximum Contaminant Level

MCLG

Maximum Contaminant Level Goal

mg

milligram

min

minute

mL

milliliter

mm

millimeter

mm Hg

millimeters of mercury

mmol

millimole

mo

month

mppcf

millions of particles per cubic foot

MRL

Minimal Risk Level

MS

mass spectrometry

NAAQS

National Ambient Air Quality Standard

NAS

National Academy of Science

NATICH

National Air Toxics Information Clearinghouse

NATO

North Atlantic Treaty Organization

NCE

normochromatic erythrocytes

NCI

National Cancer Institute

NIEHS

National Institute of Environmental Health Sciences

NIOSH

National Institute for Occupational Safety and Health

NIOSHTIC

NIOSH’s Computerized Information Retrieval System

NFPA

National Fire Protection Association

ng

nanogram

NLM

National Library of Medicine

nm

nanometer

NHANES

National Health and Nutrition Examination Survey

nmol

nanomole

NOAEL

no-observed-adverse-effect level

NOES

National Occupational Exposure Survey

NOHS

National Occupational Hazard Survey

NPD

nitrogen phosphorus detection

NPDES

National Pollutant Discharge Elimination System

NPL

National Priorities List

NR

not reported

NRC

National Research Council

NS

not specified

NSPS

New Source Performance Standards

NTIS

National Technical Information Service

NTP

National Toxicology Program

ODW

Office of Drinking Water, EPA

OERR

Office of Emergency and Remedial Response, EPA

OHM/TADS

Oil and Hazardous Materials/Technical Assistance Data System

OPP

Office of Pesticide Programs, EPA

OPPTS

Office of Prevention, Pesticides and Toxic Substances, EPA

OPPT

Office of Pollution Prevention and Toxics, EPA

OSHA

Occupational Safety and Health Administration

OSW

Office of Solid Waste, EPA

OTS

Office of Toxic Substances

OW

Office of Water

OWRS

Office of Water Regulations and Standards, EPA

PAH

Polycyclic Aromatic Hydrocarbon

PBPD

Physiologically Based Pharmacodynamic

PBPK

Physiologically Based Pharmacokinetic

PCE

polychromatic erythrocytes

PEL

permissible exposure limit

PID

photo ionization detector

pg

picogram

pmol

picomole

PHS

Public Health Service

PMR

proportionate mortality ratio

PPb

parts per billion

ppm

parts per million

ppt

parts per trillion

PSNS

Pretreatment Standards for New Sources

REL

recommended exposure level/limit

RfC

Reference Concentration

RfD

Reference Dose

RNA

ribonucleic acid

RTECS

Registry of Toxic Effects of Chemical Substances

RQ

Reportable Quantity

SARA

Superfund Amendments and Reauthorization Act

SCE

sister chromatid exchange

sec

second

SIC

Standard Industrial Classification

SIM

selected ion monitoring

SMCL

Secondary Maximum Contaminant Level

SMR

standard mortality ratio

SNARL

Suggested No Adverse Response Level

SPEGL

Short-Term Public Emergency Guidance Level

STEL

short-term exposure limit

STORET

Storage and Retrieval

TD50

toxic dose, 50% specific toxic effect

TLV

threshold limit value

TOC

Total Organic Compound

TPQ

Threshold Planning Quantity

TRI

Toxics Release Inventory

TSCA

Toxic Substances Control Act

TRI

Toxics Release Inventory

TWA

time-weighted average

U.S.

United States

UF

uncertainty factor

VOC

Volatile Organic Compound

yr

year

WHO

World Health Organization

wk

week

>

greater than

greater than or equal to

=

equal to

<

less than

less than or equal to

%

percent

α

alpha

β

beta

γ

gamma

δ

delta

μm

micrometer

μg

microgram

q1*

cancer slope factor

negative

+

positive

(+)

weakly positive result

(−)

weakly negative result