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EMFAC Emission Rates Database
Region:
Alameda (SF)
Alpine (GBV)
Amador (MC)
Butte (SV)
Calaveras (MC)
Colusa (SV)
Contra Costa (SF)
Del Norte (NC)
El Dorado (LT)
El Dorado (MC)
Fresno (SJV)
Glenn (SV)
Humboldt (NC)
Imperial (SS)
Inyo (GBV)
Kern (MD)
Kern (SJV)
Kings (SJV)
Lake (LC)
Lassen (NEP)
Los Angeles (MD)
Los Angeles (SC)
Madera (SJV)
Marin (SF)
Mariposa (MC)
Mendocino (NC)
Merced (SJV)
Modoc (NEP)
Mono (GBV)
Monterey (NCC)
Napa (SF)
Nevada (MC)
Orange (SC)
Placer (LT)
Placer (MC)
Placer (SV)
Plumas (MC)
Riverside (MD/MDAQMD)
Riverside (MD/SCAQMD)
Riverside (SC)
Riverside (SS)
Sacramento (SV)
San Benito (NCC)
San Bernardino (MD)
San Bernardino (SC)
San Diego (SD)
San Francisco (SF)
San Joaquin (SJV)
San Luis Obispo (SCC)
San Mateo (SF)
Santa Barbara (SCC)
Santa Clara (SF)
Santa Cruz (NCC)
Shasta (SV)
Sierra (MC)
Siskiyou (NEP)
Solano (SF)
Solano (SV)
Sonoma (NC)
Sonoma (SF)
Stanislaus (SJV)
Sutter (SV)
Tehama (SV)
Trinity (NC)
Tulare (SJV)
Tuolumne (MC)
Ventura (SCC)
Yolo (SV)
Yuba (SV)
Statewide Totals
Calendar Year:
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
Season:
Annual Average
Summer
Winter
Vehicle Category:
All
LDA
LDT1
LDT2
LHD1
LHD2
MCY
MDV
MH
Motor Coach
OBUS
PTO
SBUS
T6 Ag
T6 Public
T6 CAIRP heavy
T6 CAIRP small
T6 OOS heavy
T6 OOS small
T6 instate construction heavy
T6 instate construction small
T6 instate heavy
T6 instate small
T6 utility
T6TS
T7 Ag
T7 CAIRP
T7 CAIRP construction
T7 NNOOS
T7 NOOS
T7 other port
T7 POAK
T7 POLA
T7 Public
T7 Single
T7 single construction
T7 SWCV
T7 tractor
T7 tractor construction
T7 utility
T7IS
UBUS
All Other Buses
Fuel:
All
DSL
GAS
Model Year:
Combined
All
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
Speed:
Combined
All
05
10
15
20
25
30
35
40
45
50
55
60
65
70
75
Query by:
• CTEMFAC Vehicle Categories
• EMFAC 2007 Vehicle Categories
• EMFAC 2011 Vehicle Categories
The values for Vehicle Category have changed
for the query type you have selected.
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