Appendix D Air Quality
APPENDIX D AIR QUALITY STANDARDS AND CALCULATIONS
Ambient Air Quality Standards Pollutant
Averaging Time
California Standards 1 Concentration
3
1 Hour
0.09 ppm (180 µg/m3)
8 Hour
3
Method
Fine Particulate Matter (PM2.5)8 Carbon Monoxide (CO)
Nitrogen 9 Dioxide (NO2)
Sulfur Dioxide (SO2)10
Lead11,12
4
Ultraviolet Photometry
Ozone (O3)
24 Hour Respirable Particulate Annual 8 Matter (PM10) Arithmetic Mean
National Standards 2
0.070 ppm (137 µg/m )
Primary
3,5
Secondary
— 3
3,6
Same as Primary Standard
Ultraviolet Photometry
Same as Primary Standard
Inertial Separation and Gravimetric Analysis
150 µg/m3 Gravimetric or Beta Attenuation
—
24 Hour
—
—
35 µg/m3
Same as Primary Standard
Annual Arithmetic Mean
12 µg/m3
Gravimetric or Beta Attenuation
12.0 µg/m3
15 µg/m3
1 Hour
20 ppm (23 mg/m3)
35 ppm (40 mg/m3)
—
9 ppm (10 mg/m3)
—
—
—
100 ppb (188 µg/m3)
—
8 Hour
9.0 ppm (10 mg/m3)
8 Hour (Lake Tahoe)
6 ppm (7 mg/m3)
1 Hour
0.18 ppm (339 µg/m3)
Non-Dispersive Infrared Photometry (NDIR)
Gas Phase Chemiluminescence
Annual Arithmetic Mean
0.030 ppm (57 µg/m )
0.053 ppm (100 µg/m )
Same as Primary Standard
1 Hour
0.25 ppm (655 µg/m3)
75 ppb (196 µg/m3)
—
3 Hour
—
—
0.5 ppm (1300 µg/m3)
24 Hour
0.04 ppm (105 µg/m3)
0.14 ppm (for certain areas)10
—
Annual Arithmetic Mean
—
0.030 ppm (for certain areas)10
—
30 Day Average
1.5 µg/m3
—
—
Calendar Quarter
—
3
7
0.075 ppm (147 µg/m )
50 µg/m3 20 µg/m3
Method
Ultraviolet Fluorescence
Atomic Absorption
Rolling 3-Month Average
—
Visibility Reducing Particles13
8 Hour
See footnote 13
Beta Attenuation and Transmittance through Filter Tape
Sulfates
24 Hour
25 µg/m3
Ion Chromatography
Hydrogen Sulfide
1 Hour
0.03 ppm (42 µg/m3)
Ultraviolet Fluorescence
Vinyl Chloride11
24 Hour
0.01 ppm (26 µg/m3)
Gas Chromatography
3
1.5 µg/m3 (for certain areas)12
Same as Primary Standard
Inertial Separation and Gravimetric Analysis
Non-Dispersive Infrared Photometry (NDIR)
Gas Phase Chemiluminescence
Ultraviolet Flourescence; Spectrophotometry (Pararosaniline Method)
High Volume Sampler and Atomic Absorption
0.15 µg/m3
No National
Standards
See footnotes on next page … For more information please call ARB-PIO at (916) 322-2990
California Air Resources Board (6/4/13)
1.
California standards for ozone, carbon monoxide (except 8-hour Lake Tahoe), sulfur dioxide (1 and 24 hour), nitrogen dioxide, and particulate matter (PM10, PM2.5, and visibility reducing particles), are values that are not to be exceeded. All others are not to be equaled or exceeded. California ambient air quality standards are listed in the Table of Standards in Section 70200 of Title 17 of the California Code of Regulations.
2.
National standards (other than ozone, particulate matter, and those based on annual arithmetic mean) are not to be exceeded more than once a year. The ozone standard is attained when the fourth highest 8-hour concentration measured at each site in a year, averaged over three years, is equal to or less than the standard. For PM10, the 24 hour standard is attained when the expected number of days per 3 calendar year with a 24-hour average concentration above 150 µg/m is equal to or less than one. For PM2.5, the 24 hour standard is attained when 98 percent of the daily concentrations, averaged over three years, are equal to or less than the standard. Contact the U.S. EPA for further clarification and current national policies.
3.
Concentration expressed first in units in which it was promulgated. Equivalent units given in parentheses are based upon a reference temperature of 25°C and a reference pressure of 760 torr. Most measurements of air quality are to be corrected to a reference temperature of 25°C and a reference pressure of 760 torr; ppm in this table refers to ppm by volume, or micromoles of pollutant per mole of gas.
4.
Any equivalent measurement method which can be shown to the satisfaction of the ARB to give equivalent results at or near the level of the air quality standard may be used.
5.
National Primary Standards: The levels of air quality necessary, with an adequate margin of safety to protect the public health.
6.
National Secondary Standards: The levels of air quality necessary to protect the public welfare from any known or anticipated adverse effects of a pollutant.
7.
Reference method as described by the U.S. EPA. An “equivalent method” of measurement may be used but must have a “consistent relationship to the reference method” and must be approved by the U.S. EPA.
8.
On December 14, 2012, the national annual PM2.5 primary standard was lowered from 15 µg/m3 to 12.0 µg/m3. The existing national 24hour PM2.5 standards (primary and secondary) were retained at 35 µg/m3, as was the annual secondary standard of 15 µg/m3. The existing 24-hour PM10 standards (primary and secondary) of 150 µg/m3 also were retained. The form of the annual primary and secondary standards is the annual mean, averaged over 3 years.
9.
To attain the 1-hour national standard, the 3-year average of the annual 98th percentile of the 1-hour daily maximum concentrations at each site must not exceed 100 ppb. Note that the national 1-hour standard is in units of parts per billion (ppb). California standards are in units of parts per million (ppm). To directly compare the national 1-hour standard to the California standards the units can be converted from ppb to ppm. In this case, the national standard of 100 ppb is identical to 0.100 ppm.
10.
On June 2, 2010, a new 1-hour SO2 standard was established and the existing 24-hour and annual primary standards were revoked. To attain the 1-hour national standard, the 3-year average of the annual 99th percentile of the 1-hour daily maximum concentrations at each site must not exceed 75 ppb. The 1971 SO2 national standards (24-hour and annual) remain in effect until one year after an area is designated for the 2010 standard, except that in areas designated nonattainment for the 1971 standards, the 1971 standards remain in effect until implementation plans to attain or maintain the 2010 standards are approved. Note that the 1-hour national standard is in units of parts per billion (ppb). California standards are in units of parts per million (ppm). To directly compare the 1-hour national standard to the California standard the units can be converted to ppm. In this case, the national standard of 75 ppb is identical to 0.075 ppm.
11.
The ARB has identified lead and vinyl chloride as 'toxic air contaminants' with no threshold level of exposure for adverse health effects determined. These actions allow for the implementation of control measures at levels below the ambient concentrations specified for these pollutants.
12.
The national standard for lead was revised on October 15, 2008 to a rolling 3-month average. The 1978 lead standard (1.5 µg/m3 as a quarterly average) remains in effect until one year after an area is designated for the 2008 standard, except that in areas designated nonattainment for the 1978 standard, the 1978 standard remains in effect until implementation plans to attain or maintain the 2008 standard are approved.
13.
In 1989, the ARB converted both the general statewide 10-mile visibility standard and the Lake Tahoe 30-mile visibility standard to instrumental equivalents, which are "extinction of 0.23 per kilometer" and "extinction of 0.07 per kilometer" for the statewide and Lake Tahoe Air Basin standards, respectively. For more information please call ARB-PIO at (916) 322-2990
California Air Resources Board (6/4/13)
November 18, 2011 AMEC Project Number 7551005103
Montecito Fire Station Emergency Generator Emissions
Emission Factors CO (g/kW-hr) 0.90000 Rating (KW) 80
Rating (hp) 107.3
Operating Hours/yr 500
NOx (g/kW-hr) 3.610
SOx (lb/hp-hr) 0.00205
PM10 (g/kW-hr) 0.1600
1
PM2.5 (g/kW-hr) 0.1600
VOC (g/kW-hr) 0.19000
CO2 (lb/hp-hr) 1.15
Total HAPs (lb/MMBTU) 0.00632
0.034
92.00
0.0047
0.80
2208.00
0.114
0.008
23
0.00119
Emissions (lb/hr) 0.16
0.64
0.22
0.028
3.81
15.28
5.28
0.68
0.04
0.16
0.05498
0.0071
0.028
Emissions (lbs/day) (based on 24 hr operation) 0.68
Emissions (tons/yr) 0.0071
1. Emission in g/kW-hr taken from manufacturer's spec sheet and factors in lb/hp-hr taken from AP-42, Table 3.3-1 and 3.3-2 for Diesel Fired Engines (full load conditions) Emission (lb/hr) = EF (lb/hp-hr) * 107.3 (hp)
or EF (g/kW-hr) * 80 kW / 453.59 (g/lb)
Emission (lb/hr) = EF (lb/MMBTU) * 0.007 (MMBTU / hp-hr) * 107.3 (hp) Based on ARB Diesel Engine Screening Risk Assessment Tables at 50% load there is no cancer risk beyond 200 meters http://www.arb.ca.gov/ab2588/diesel/instructions.htm
Montecito Fire Station Emissions of CO2 from Electricity Usage
Emission Factor Energy Use 2 Building Size
1
681 lbs CO2/MWh 54,160 BTU/sqft 7100 sqft
Energy Usage
3.85E+08 BTU
BTU to KWh
2.93E-04 (KWh/BTU)
Energy Usage
1.13E+05 KWh
CO2 emissions CO2 emission
April 29, 2011 AMEC Project Number 7551005103
76728 lbs
(Energy Use x Building Size)
(Energy Usage x BTU to KWh) (Emission Factor x Energy Use/1000)
38.4 tons
1. USEPA OAS at http://oaspub.epa.gov/powpro/ept_pack.charts 2. DOE Buildings Energy Data Book at http://buildingsdatabook.eren.doe.gov
Buildings Energy Data Book
1 of 1
http://buildingsdatabook.eren.doe.gov/CBECS.aspx
The criteria you have selected returns a small sample set (under 25). This may make the data unreliable. For more information on reliability, please visit EIA’s website.
Results Sample Size: 4 Represents (# of buildings): 4,264 Total Square Feet: 33,159,350
Thousand Expenditures/ Expenditures Btu/ Square Foot ( $) Square ($) Foot
Fuels
Thousand Btu
Electricity
1,795,982,059
36,780,519
37,234,565
465,767
1.12
0.01
0
0
0.00
0.00
1,833,216,624
37,246,286
55.29
1.12
Natural Gas Fuel Oil All Major Fuels
End-Use
54.16
1.11
Thousand Btu/ Square Foot
Thousand Total Btu
Heating
457,832,980
Cooling
129,494,637
3.91
82,657,710
2.49
Water Heating
159,836,858
4.82
Lighting
492,807,589
14.86
Ventilation
Cooking
13.81
0
0.00
158,711,065
4.79
Office Equipment
26,462,726
0.80
Computer Use
52,987,290
1.60
Miscellaneous
272,427,874
8.22
Refrigeration
New Search Building Technologies Program
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Webmaster
|
Security & Privacy
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Last Updated: March 2011
4/29/2011 10:41 AM
How clean is the electricity I use? - Power Profiler | Clean Energy | US EPA
1 of 2
http://oaspub.epa.gov/powpro/ept_pack.charts http://oaspub.epa.gov/powpro/ept_pack.charts Last updated on Friday, April 29, 2011
Clean Energy You are here: EPA Home use? - Power Profiler
Climate Change
Clean Energy
Energy and You
How clean is the electricity I
The table below contains two charts: The first chart compares the fuel mix used to generate electricity in your region of the power grid to the national fuel mix. The second chart compares the average air emissions rates in your region of the power grid to the national average emissions rates. eGRID Subregion: WECC California (which includes the ZIP code: 93108)
FUEL MIX COMPARISON
What Is My Fuel Mix?
52.5
This chart compares fuel mix (%) of sources used to generate
9.6
2.5
12.1
5.8
Non-Hydro Hydro Renewables
48.5 21.7
16.2 19.4
7.6
1.0 1.6 Nuclear
Oil
Gas
%
Coal
electricity in your region to the fuel mix (%) for the entire United States.
EMISSIONS RATE COMPARISON
What Are the Emissions in My Area? This chart compares the average
1300
emissions rates (lbs/MWh) in your geographical
4.75 0.62
1.79
681
0.42
region to the
4/29/2011 10:47 AM
How clean is the electricity I use? - Power Profiler | Clean Energy | US EPA
http://oaspub.epa.gov/powpro/ept_pack.charts
national average emissions rates (lbs/MWh) for nitgrogen oxide, sulfur dioxide,
Nitrogen Oxide
Sulfur Dioxide
Carbon Dioxide
and carbon dioxide.
MAKE A DIFFERENCE
What Can I Do to Make a Difference?
Find out about the actual emissions attributable to the electricity you use in your home or business.
Choose one of the buttons on the right to find out what you can do to make a
Find out how you can make your home or business more energy efficient.
difference.
Learn how you can buy green power (power generated from renewable energy sources) for your home or business.
Note: The information reported above is derived from EPA's eGRID database for calendar year 2007.
2 of 2
4/29/2011 10:47 AM
Ambient Air Quality Standards Pollutant
Averaging Time
California Standards 1 Concentration
3
1 Hour
0.09 ppm (180 µg/m3)
8 Hour
3
Method
Fine Particulate Matter (PM2.5)8 Carbon Monoxide (CO)
Nitrogen 9 Dioxide (NO2)
Sulfur Dioxide (SO2)10
Lead11,12
4
Ultraviolet Photometry
Ozone (O3)
24 Hour Respirable Particulate Annual 8 Matter (PM10) Arithmetic Mean
National Standards 2
0.070 ppm (137 µg/m )
Primary
3,5
Secondary
— 3
3,6
Same as Primary Standard
Ultraviolet Photometry
Same as Primary Standard
Inertial Separation and Gravimetric Analysis
150 µg/m3 Gravimetric or Beta Attenuation
—
24 Hour
—
—
35 µg/m3
Same as Primary Standard
Annual Arithmetic Mean
12 µg/m3
Gravimetric or Beta Attenuation
12.0 µg/m3
15 µg/m3
1 Hour
20 ppm (23 mg/m3)
35 ppm (40 mg/m3)
—
9 ppm (10 mg/m3)
—
—
—
100 ppb (188 µg/m3)
—
8 Hour
9.0 ppm (10 mg/m3)
8 Hour (Lake Tahoe)
6 ppm (7 mg/m3)
1 Hour
0.18 ppm (339 µg/m3)
Non-Dispersive Infrared Photometry (NDIR)
Gas Phase Chemiluminescence
Annual Arithmetic Mean
0.030 ppm (57 µg/m )
0.053 ppm (100 µg/m )
Same as Primary Standard
1 Hour
0.25 ppm (655 µg/m3)
75 ppb (196 µg/m3)
—
3 Hour
—
—
0.5 ppm (1300 µg/m3)
24 Hour
0.04 ppm (105 µg/m3)
0.14 ppm (for certain areas)10
—
Annual Arithmetic Mean
—
0.030 ppm (for certain areas)10
—
30 Day Average
1.5 µg/m3
—
—
Calendar Quarter
—
3
7
0.075 ppm (147 µg/m )
50 µg/m3 20 µg/m3
Method
Ultraviolet Fluorescence
Atomic Absorption
Rolling 3-Month Average
—
Visibility Reducing Particles13
8 Hour
See footnote 13
Beta Attenuation and Transmittance through Filter Tape
Sulfates
24 Hour
25 µg/m3
Ion Chromatography
Hydrogen Sulfide
1 Hour
0.03 ppm (42 µg/m3)
Ultraviolet Fluorescence
Vinyl Chloride11
24 Hour
0.01 ppm (26 µg/m3)
Gas Chromatography
3
1.5 µg/m3 (for certain areas)12
Same as Primary Standard
Inertial Separation and Gravimetric Analysis
Non-Dispersive Infrared Photometry (NDIR)
Gas Phase Chemiluminescence
Ultraviolet Flourescence; Spectrophotometry (Pararosaniline Method)
High Volume Sampler and Atomic Absorption
0.15 µg/m3
No National
Standards
See footnotes on next page … For more information please call ARB-PIO at (916) 322-2990
California Air Resources Board (6/4/13)
1.
California standards for ozone, carbon monoxide (except 8-hour Lake Tahoe), sulfur dioxide (1 and 24 hour), nitrogen dioxide, and particulate matter (PM10, PM2.5, and visibility reducing particles), are values that are not to be exceeded. All others are not to be equaled or exceeded. California ambient air quality standards are listed in the Table of Standards in Section 70200 of Title 17 of the California Code of Regulations.
2.
National standards (other than ozone, particulate matter, and those based on annual arithmetic mean) are not to be exceeded more than once a year. The ozone standard is attained when the fourth highest 8-hour concentration measured at each site in a year, averaged over three years, is equal to or less than the standard. For PM10, the 24 hour standard is attained when the expected number of days per 3 calendar year with a 24-hour average concentration above 150 µg/m is equal to or less than one. For PM2.5, the 24 hour standard is attained when 98 percent of the daily concentrations, averaged over three years, are equal to or less than the standard. Contact the U.S. EPA for further clarification and current national policies.
3.
Concentration expressed first in units in which it was promulgated. Equivalent units given in parentheses are based upon a reference temperature of 25°C and a reference pressure of 760 torr. Most measurements of air quality are to be corrected to a reference temperature of 25°C and a reference pressure of 760 torr; ppm in this table refers to ppm by volume, or micromoles of pollutant per mole of gas.
4.
Any equivalent measurement method which can be shown to the satisfaction of the ARB to give equivalent results at or near the level of the air quality standard may be used.
5.
National Primary Standards: The levels of air quality necessary, with an adequate margin of safety to protect the public health.
6.
National Secondary Standards: The levels of air quality necessary to protect the public welfare from any known or anticipated adverse effects of a pollutant.
7.
Reference method as described by the U.S. EPA. An “equivalent method” of measurement may be used but must have a “consistent relationship to the reference method” and must be approved by the U.S. EPA.
8.
On December 14, 2012, the national annual PM2.5 primary standard was lowered from 15 µg/m3 to 12.0 µg/m3. The existing national 24hour PM2.5 standards (primary and secondary) were retained at 35 µg/m3, as was the annual secondary standard of 15 µg/m3. The existing 24-hour PM10 standards (primary and secondary) of 150 µg/m3 also were retained. The form of the annual primary and secondary standards is the annual mean, averaged over 3 years.
9.
To attain the 1-hour national standard, the 3-year average of the annual 98th percentile of the 1-hour daily maximum concentrations at each site must not exceed 100 ppb. Note that the national 1-hour standard is in units of parts per billion (ppb). California standards are in units of parts per million (ppm). To directly compare the national 1-hour standard to the California standards the units can be converted from ppb to ppm. In this case, the national standard of 100 ppb is identical to 0.100 ppm.
10.
On June 2, 2010, a new 1-hour SO2 standard was established and the existing 24-hour and annual primary standards were revoked. To attain the 1-hour national standard, the 3-year average of the annual 99th percentile of the 1-hour daily maximum concentrations at each site must not exceed 75 ppb. The 1971 SO2 national standards (24-hour and annual) remain in effect until one year after an area is designated for the 2010 standard, except that in areas designated nonattainment for the 1971 standards, the 1971 standards remain in effect until implementation plans to attain or maintain the 2010 standards are approved. Note that the 1-hour national standard is in units of parts per billion (ppb). California standards are in units of parts per million (ppm). To directly compare the 1-hour national standard to the California standard the units can be converted to ppm. In this case, the national standard of 75 ppb is identical to 0.075 ppm.
11.
The ARB has identified lead and vinyl chloride as 'toxic air contaminants' with no threshold level of exposure for adverse health effects determined. These actions allow for the implementation of control measures at levels below the ambient concentrations specified for these pollutants.
12.
The national standard for lead was revised on October 15, 2008 to a rolling 3-month average. The 1978 lead standard (1.5 µg/m3 as a quarterly average) remains in effect until one year after an area is designated for the 2008 standard, except that in areas designated nonattainment for the 1978 standard, the 1978 standard remains in effect until implementation plans to attain or maintain the 2008 standard are approved.
13.
In 1989, the ARB converted both the general statewide 10-mile visibility standard and the Lake Tahoe 30-mile visibility standard to instrumental equivalents, which are "extinction of 0.23 per kilometer" and "extinction of 0.07 per kilometer" for the statewide and Lake Tahoe Air Basin standards, respectively. For more information please call ARB-PIO at (916) 322-2990
California Air Resources Board (6/4/13)
November 18, 2011 AMEC Project Number 7551005103
Montecito Fire Station Emergency Generator Emissions
Emission Factors CO (g/kW-hr) 0.90000 Rating (KW) 80
Rating (hp) 107.3
Operating Hours/yr 500
NOx (g/kW-hr) 3.610
SOx (lb/hp-hr) 0.00205
PM10 (g/kW-hr) 0.1600
1
PM2.5 (g/kW-hr) 0.1600
VOC (g/kW-hr) 0.19000
CO2 (lb/hp-hr) 1.15
Total HAPs (lb/MMBTU) 0.00632
0.034
92.00
0.0047
0.80
2208.00
0.114
0.008
23
0.00119
Emissions (lb/hr) 0.16
0.64
0.22
0.028
3.81
15.28
5.28
0.68
0.04
0.16
0.05498
0.0071
0.028
Emissions (lbs/day) (based on 24 hr operation) 0.68
Emissions (tons/yr) 0.0071
1. Emission in g/kW-hr taken from manufacturer's spec sheet and factors in lb/hp-hr taken from AP-42, Table 3.3-1 and 3.3-2 for Diesel Fired Engines (full load conditions) Emission (lb/hr) = EF (lb/hp-hr) * 107.3 (hp)
or EF (g/kW-hr) * 80 kW / 453.59 (g/lb)
Emission (lb/hr) = EF (lb/MMBTU) * 0.007 (MMBTU / hp-hr) * 107.3 (hp) Based on ARB Diesel Engine Screening Risk Assessment Tables at 50% load there is no cancer risk beyond 200 meters http://www.arb.ca.gov/ab2588/diesel/instructions.htm
Montecito Fire Station Emissions of CO2 from Electricity Usage
Emission Factor Energy Use 2 Building Size
1
681 lbs CO2/MWh 54,160 BTU/sqft 7100 sqft
Energy Usage
3.85E+08 BTU
BTU to KWh
2.93E-04 (KWh/BTU)
Energy Usage
1.13E+05 KWh
CO2 emissions CO2 emission
April 29, 2011 AMEC Project Number 7551005103
76728 lbs
(Energy Use x Building Size)
(Energy Usage x BTU to KWh) (Emission Factor x Energy Use/1000)
38.4 tons
1. USEPA OAS at http://oaspub.epa.gov/powpro/ept_pack.charts 2. DOE Buildings Energy Data Book at http://buildingsdatabook.eren.doe.gov
Buildings Energy Data Book
1 of 1
http://buildingsdatabook.eren.doe.gov/CBECS.aspx
The criteria you have selected returns a small sample set (under 25). This may make the data unreliable. For more information on reliability, please visit EIA’s website.
Results Sample Size: 4 Represents (# of buildings): 4,264 Total Square Feet: 33,159,350
Thousand Expenditures/ Expenditures Btu/ Square Foot ( $) Square ($) Foot
Fuels
Thousand Btu
Electricity
1,795,982,059
36,780,519
37,234,565
465,767
1.12
0.01
0
0
0.00
0.00
1,833,216,624
37,246,286
55.29
1.12
Natural Gas Fuel Oil All Major Fuels
End-Use
54.16
1.11
Thousand Btu/ Square Foot
Thousand Total Btu
Heating
457,832,980
Cooling
129,494,637
3.91
82,657,710
2.49
Water Heating
159,836,858
4.82
Lighting
492,807,589
14.86
Ventilation
Cooking
13.81
0
0.00
158,711,065
4.79
Office Equipment
26,462,726
0.80
Computer Use
52,987,290
1.60
Miscellaneous
272,427,874
8.22
Refrigeration
New Search Building Technologies Program
|
Webmaster
|
Security & Privacy
|
Disclaimer
|
EERE Home
|
Contact Us
Last Updated: March 2011
4/29/2011 10:41 AM
How clean is the electricity I use? - Power Profiler | Clean Energy | US EPA
1 of 2
http://oaspub.epa.gov/powpro/ept_pack.charts http://oaspub.epa.gov/powpro/ept_pack.charts Last updated on Friday, April 29, 2011
Clean Energy You are here: EPA Home use? - Power Profiler
Climate Change
Clean Energy
Energy and You
How clean is the electricity I
The table below contains two charts: The first chart compares the fuel mix used to generate electricity in your region of the power grid to the national fuel mix. The second chart compares the average air emissions rates in your region of the power grid to the national average emissions rates. eGRID Subregion: WECC California (which includes the ZIP code: 93108)
FUEL MIX COMPARISON
What Is My Fuel Mix?
52.5
This chart compares fuel mix (%) of sources used to generate
9.6
2.5
12.1
5.8
Non-Hydro Hydro Renewables
48.5 21.7
16.2 19.4
7.6
1.0 1.6 Nuclear
Oil
Gas
%
Coal
electricity in your region to the fuel mix (%) for the entire United States.
EMISSIONS RATE COMPARISON
What Are the Emissions in My Area? This chart compares the average
1300
emissions rates (lbs/MWh) in your geographical
4.75 0.62
1.79
681
0.42
region to the
4/29/2011 10:47 AM
How clean is the electricity I use? - Power Profiler | Clean Energy | US EPA
http://oaspub.epa.gov/powpro/ept_pack.charts
national average emissions rates (lbs/MWh) for nitgrogen oxide, sulfur dioxide,
Nitrogen Oxide
Sulfur Dioxide
Carbon Dioxide
and carbon dioxide.
MAKE A DIFFERENCE
What Can I Do to Make a Difference?
Find out about the actual emissions attributable to the electricity you use in your home or business.
Choose one of the buttons on the right to find out what you can do to make a
Find out how you can make your home or business more energy efficient.
difference.
Learn how you can buy green power (power generated from renewable energy sources) for your home or business.
Note: The information reported above is derived from EPA's eGRID database for calendar year 2007.
2 of 2
4/29/2011 10:47 AM
