ACBS	Asthma Call-Back Survey
AHRQ	Agency for Healthcare Research and Quality
BLS	Bureau of Labor Statistics
BoD	Burden of Disease
BRFSS	Behavioral Risk Factor Surveillance System
CCS	Clinical Classification System
CI	Confidence Interval
CO	Carbon Monoxide
COB	Congressional Budget Office
CRF	Concentration Response Function
D.C.	Washington D.C.
GDP	Gross Domestic Product
ICD-9-CM	International Classification of Diseases, Ninth Revision, Clinical Modification
LUR	Land-Use Regression
HCUP	Health Care Cost and Utilization Project
MEPS	Medical Expenditure Panel Survey
NRP	Near Roadway Pollution
NO2	Nitrogen Dioxide
NOx	Nitrogen Oxides
O3	Ozone
PAF	Population-Attributable Fraction
PM10	Particulate Matter with a Diameter less than 10 micrometers
PM2.5	Particulate Matter with a Diameter less than 2.5 micrometers
TRAP	Traffic-Related Air Pollution
U.S.	United States
WTP	Willingness to Pay