G1

1
Portable Fuel Containers(Gas Cans)Emission
Inventory

• Lead Staff Daisy Wong

2
Gas Can 2006 Updates

• To be reflected in the planning emission
  inventory.
• Included more gas can types.
• Updated residential gas can and commercial gas
  can calculation methodology.
• Reflected 2005 portable fuel container (PFC)
  regulation.
• Reflect fuel changes from reformulated gasoline
  RFG2 to RFG3.

3
PFC Residential (Commercial) Population

• Occupied household (business)
• units
• percentage household (business)
• with gas cans
• average number of gas cans per
• household (business)

4
Occupied Household Units
5
Percentage Household with Gas Cans
(1998, 0.46)
1999 inventory
(2004,0.33)
2006 update
6
Average Number of Gas Cans per Household
(2004, 1.66)
(1998, 1.8)
7
Types of Gas Cans
8
Change of Market share for Different Can Types
9
(No Transcript)
10
Residential Gas Can Annual Emission Summary
11
Seasonality Comparison
12
Commercial Gas Can Population

• Survey conducted by California Sate University,
  Sacramento in 2004.
• Selected 13 businesses types from North American
  Industrial Classification System that may use gas
  can.
• Crop Production, Animal Production, Forestry
  Logging, Construction, Retail, Towing,
  Exterminating and Pest Control Services,
  Landscaping, Educational Services, Sports and
  Recreation, Accommodation, Repair Maintenance
  Services, Cemeteries and Crematories.
• Survey result did not represent for landscaping
  industry.
• 53.4 of business use gas cans.
• 7,826 registered landscape business.

13
Commercial Lawn and Garden (LG) Equipment

• Study done by Environmental Research Group.
• Used GIS, spatial allocation surrogate.
• 295,423 lawn mowers in California in 2005.
• Assume 2 lawn mowers/business gt 147,712 LG
  services in California.

14
Commercial Gas Can Base year Population
15
Composite Commercial Gas Can Growth Rate

• GR composite
• k1 GR (California Population)
• k2 GR (personal income)
• k3 GR (household income)
• k4 GR (REMI)
• k5 GR (landscaping employment)
• k growth rate contribution
• Ki (t) ?i(t) / S 1 x ?i(t)
• Regional Economic Models, Inc. (REMI) emission
  growth surrogates and activity projections
  (variable services)
• Landscaping Employment State of California
  Employment Development Department (EDD)

16
Commercial Gas Can Growth Rate
17
Commercial Gas Can Emissions
18
Gas Can Emissions Summary