Inventory of emissions from boating sources in California
This final report presents the distribution of boating fuel consumption and associated emissions in California, by waterway, county, and air basin. Two classes of small boats are considered. Pleasure boats are those craft owned by individuals and companies; used for cruising, water skiing, sport fishing and other recreational activities; and are powered by both gasoline and diesel engines. Commercial boats are those used for public transportation, commercial fishing, and other work functions such as tugboats, U.S. Coast Guard cutters, personnel and cargo hauling boats, etc. Commercial boats are powered primarily by diesel engines but there are a few gasoline powered craft. For the base year 1977, the statewide consumption of gasoline was 96,000,000 gallons and the consumption of diesel fuel was 36,000,000 gallons. The pollutant emission totals for 1977 were: SOx, 770 tons; CO, 105,000 tons; HC 26,000 tons; NOx, 3,600 tons and particulate matter 530 tons. Seasonal average daily emissions for winter and summer are shown in the report. The emission factors used in this study were obtained from EPA publication AP-42.