Air pollution impact of maritime shipping operations in the Port of Houston.
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Air pollutants from maritime shipping operations include emissions which are substantial from steam-ships burning high - sulfur residual fuel oil. Shipping contributes 66% of the total sulfur dioxide emissions from transportation sources and almost 3% of the total for Harris County, Tex. Significant marine air pollutant emmission sources are found in busy harbor areas such as the Houston Ship Channel. Offshore terminals for unloading large tankers may result in emissions of 10-20 to/day of sox per ship. Pollution problems are aggravated in atmospheres like the humid Texas Gulf coast. Emission controls that may be necessary for large ships in port are discussed.