Causes of Marine (Air and Water) Pollution:
- Oil in oceans: One of ugliest forms; images of tanker spills, oiled seabirds, gooey shorelines.
- Oil spills not major cause; majority from other sources.
Types of Marine Oil Pollution (with approximate contributions based on historical data):
- Offshore drilling: From operational discharges/accidents.
- Large oil spills: From tanker accidents (collisions/groundings); small percent (e.g., ~5%).
- Natural oil pollution (seeps): From ocean floor/ eroding rocks; natural for thousands/millions years.
- Up in Smoke: From oil consumption (automobiles/industry); hydrocarbons via atmospheric fallout.
- Routine maintenance: From ship bilge cleaning/etc.
- People dumping oils/products down stormdrains, urban street runoff (worst source).
Prevention of Marine Pollution:
- Divided into oil tankers and chemical tankers at sea/in port.
- Awareness of IMO regulations.
- Air pollution growing international concern.
- Local/national rules must comply.
- Definition of Volatile Organic Compounds (VOCs) in Appendix I.
- Refer to Regulation 15 of Annex VI of MARPOL 73/78.
Measures in Event of Spillage:
- Focus on onboard actions upon spill occurrence.
- Importance of prompt notification to relevant authorities.
Basic Knowledge of the Effects of Oil and Chemical Pollution on Human and Marine Life
For Oil Tankers at Sea and in Port: SOPEP (0.25 hour) Ship’s SOPEP must be approved form, include:
- Procedure for Master/charge person to notify reportable incident (discharge/probable discharge of oil).
- List of entities to notify if incident happens.
- Procedure for coordinating with notified entities.
- Name of onboard person for all communications about incident.
- Detailed description of immediate actions by onboard persons to minimize/control discharge from incident.
For Chemical Tankers at Sea and in Port: SMPEP Shipboard Marine Pollution Emergency Plan for noxious liquid substances in prescribed form, set out:
- Procedures for Master/charge person to notify prescribed incident.
- List of authorities/persons to notify if prescribed incident occurs.
- Detailed description of immediate actions by onboard persons to reduce/control discharge from incident.