Modeling Sulfur Oxides (SOx) Emissions Transport from Ships at Sea Modeling Sulfur Oxides (SOx) Emissions Transport from Ships at Sea

NOTICE This technical report does not necessarily represent final EPA decisions or positions. It is intended to present technical analysis of issues using data that are currently available. The purpose in the release of such reports is to facilitate the exchange of technical information and to inform the public of technical developments which may form the basis for a final EPA decision, position, or regulatory action. Figure 4-1 Ratios of annual-average SO 2 concentrations due to seagoing ships burning high-sulfur fuel at 125 km from the Southern Pacific U.S. coastline to the concentrations (target values) due to dockside ships at the coastline burning low-sulfur fuel .. Figure 4-3 Ratios of annual-average sulfate concentrations due to seagoing ships burning high-sulfur fuel at 125 km from the Southern Pacific U.S. coastline to the concentrations (target values) due to dockside ships at the coastline burning low-sulfur fuel .. Figure 4-5 Ratios of annual-average SO 2 concentrations due to seagoing ships burning high-sulfur fuel at 250 km from the Southern Pacific U.S. coastline to the concentrations (target values) due to dockside ships at the coastline burning low-sulfur fuel .. Figure 4-7 Ratios of annual-average sulfate concentrations due to seagoing ships burning high-sulfur fuel at 250 km from the Southern Pacific U.S. coastline to the concentrations (target values) due to dockside ships at the coastline burning low-sulfur fuel .. Figure 4-9 Ratios of annual-average SO 2 concentrations due to seagoing ships burning high-sulfur fuel at 375 km from the Southern Pacific U.S. coastline to the concentrations (target values) due to dockside ships at the coastline burning low-sulfur fuel .. coastline to the concentrations (target values) due to dockside ships at the coastline burning low-sulfur fuel .. Figure 4-13 Ratios of annual-average sulfate concentrations due to seagoing ships burning high-sulfur fuel at 500 km from the Southern Pacific U.S. coastline to the concentrations (target values) due to dockside ships at the coastline burning low-sulfur fuel .. Figure 4-15 Ratios of annual-average SO 2 concentrations due to seagoing ships burning high-sulfur fuel at 125 km from the Northern Pacific U.S. coastline to the concentrations (target values) due to dockside ships at the coastline burning low-sulfur fuel .. Figure 4-17 Ratios of annual-average sulfate concentrations due to seagoing ships burning high-sulfur fuel at 125 km from the Northern Pacific U.S. coastline to the concentrations (target values) due to dockside ships at the coastline burning low-sulfur fuel .. Figure …