TY  - JOUR
A1  - Frey, H C
A1  - LI, S 
T1  - Methods for quantifying variability and uncertainty in AP-42 emission factors: case studies for natural gas-fueled engines.
Y1  - 2003/12/
N1  - R826766
N1  - R826790
JF  - JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION
J1  - J AIR WASTE MANAGE
VL  - 53
IS  - 12
SP  - 1436
EP  - 1447
ER  - 


TY  - JOUR
A1  - Frey, H C
A1  - Bammi, S 
T1  - Probabilistic nonroad mobile source emission factors.
Y1  - 2003/02/
N1  - R826766
N1  - R826790
JF  - JOURNAL OF ENVIRONMENTAL ENGINEERING
VL  - 129
IS  - 2
SP  - 162
EP  - 168
ER  - 


TY  - JOUR
A1  - Frey, H C
A1  - Small, M J
T1  - Integrated environmental assessment, Part I: Estimating emissions.
Y1  - 2003/01/
N1  - R826790
JF  - JOURNAL OF INDUSTRIAL ECOLOGY
VL  - 7
IS  - 1
SP  - 9
EP  - 11
ER  - 


TY  - JOUR
A1  - Frey, H C
A1  - Zhao, Y 
T1  - Quantification of variability and uncertainty for air toxic emission inventories with censored emission factor data.
Y1  - 2004/11/15
N1  - R826790
JF  - ENVIRONMENTAL SCIENCE & TECHNOLOGY
J1  - ENVIRON SCI TECHNOL
J2  - ENVIRONMENTAL SCIENCE & TECHNOLOGY
J3  - Enviornmenal Research
VL  - 38
IS  - 22
SP  - 6094
EP  - 6100
ER  - 


TY  - JOUR
A1  - Zhao, Y 
A1  - Frey, H C
T1  - Uncertainty for data with non-detects: air toxic emissions from combustion.
Y1  - 2003/12/
N1  - R826790
VL  - 12
IS  - 6
SP  - 1171
EP  - 1191
ER  - 


TY  - JOUR
A1  - Zhao, Y 
A1  - Frey, H C
T1  - Development of probabilistic emission inventories of air toxics for Jacksonville, Florida.
Y1  - 2004/11/
N1  - R826790
JF  - JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION
J1  - J AIR WASTE MANAGE
VL  - 54
IS  - 11
SP  - 1405
EP  - 1421
ER  - 


TY  - JOUR
A1  - Zhao, Y 
A1  - Frey, H C
T1  - Quantification of variability and uncertainty for censored data sets and application to air toxic emission factors.
Y1  - 2004/09/
N1  - R826766
N1  - R826790
JF  - RISK ANALYSIS
J1  - RISK ANAL
VL  - 24
IS  - 4
SP  - 1019
EP  - 1034
ER  - 


TY  - JOUR
A1  - Zheng, J 
A1  - Frey, H C
T1  - Quantification of variability and uncertainty using mixture distributions: evaluation of sample size, mixing weights, and separation between components.
Y1  - 2004/06/
N1  - R826766
N1  - R826790
JF  - RISK ANALYSIS
J1  - RISK ANAL
VL  - 24
IS  - 3
SP  - 553
EP  - 571
ER  - 


TY  - JOUR
A1  - Zheng, J 
A1  - Frey, H C
T1  - Quantitative analysis of variability and uncertainty with known measurement error: methodology and case study.
Y1  - 2005/06/
N1  - R826790
VL  - 25
IS  - 3
SP  - 663
EP  - 675
ER  -