What is the classification of a substance that qualifies as a Marine Pollutant?

A substance is classified as a Marine Pollutant if it poses a threat to aquatic life and the marine environment when discharged into the ocean or navigable waters. This classification generally includes chemicals, oils, and certain hazardous materials that can have detrimental effects on marine ecosystems.

When a substance is identified as a Marine Pollutant, it is subject to specific regulations and handling requirements to prevent environmental contamination. This classification is crucial for ensuring that proper precautions are taken during the transportation and storage of such materials, which may include adhering to stringent guidelines for labeling, packaging, and documentation to safeguard marine environments.

The other choices do not accurately capture the criteria for classification as a Marine Pollutant. For instance, stating "No" would imply that a substance is never considered a Marine Pollutant, while "Only in certain conditions" suggests that its classification depends on specific factors, which oversimplifies the established standards. "Not categorized" indicates a lack of classification, which contradicts the established definitions and regulations governing pollutants in marine settings.