AChE	acetylcholinesterase
AL	allostatic load
BMI	body mass index
CA	concentration addition
CAFO	concentrated animal feeding operation
CAOS	common adverse outcomes
CEQ	Council on Environmental Quality
CO	carbon monoxide
CRA	Cumulative Risk Assessment
DA	dose addition
DPSEEA	Driving Force-Pressure-State-Exposure-Effect-Action
DPSIR	Drivers-Pressures-States-Impact-Response
EFSA	European Food Safety Authority
EM	effect modification
EPA	U.S. Environmental Protection Agency
FEV1	forced expiratory volume in 1 second
GIS	geographic information system
H2S	hydrogen sulfide
HAP	Hazardous Air Pollutant
HIA	Health Impact Assessment
IA	independent action
LD50	lethal dose, 50%
mmHg	millimeter of mercury
MOA	mode of action
mRNA	messenger RNA
NAAQS	National Ambient Air Quality Standards
NEPA	National Environmental Policy Act
NHANES	National Health and Nutrition Examination Survey
NO2	nitrogen dioxide
NOx	nitrogen oxides
NRC	National Research Council
PAH	polyaromatic hydrocarbon
PBPK	physiologically based pharmacokinetic
PD	pharmacodynamic
PK	pharmacokinetic
PM	particulate matter
PM10	fine particulate matter (diameter ≤ 10 μm)
PM2.5	ultrafine particulate matter (diameter ≤ 2.5 μm)
RfD	reference dose
RWI	Relative Wellness Index
SEP	socioeconomic position
SES	socioeconomic status
TCDD	tetrachlorodibenzodioxin
TSP	total suspended particulates
VOC	volatile organic compound