Table 30. Estimated Annual Oil Pollution of the Oceans 

 (Source: Reference 169) 



Marine Operations 1_/ Metric Tons Percent 



Tankers 1,387,000 28.32 



1) LOT (Load-on-Top) tank 



cleaning operations 265,000 5.41 



2) Non-LOT tank cleaning 



operations 702,000 14.34 



3) Discharge due to bilge 

 pumping, leaks and 



bunkering spills 100,000 2.04 



4) Vessel casualties 250,000 5.11 



5) Terminal operations 70,000 1.43 



Tank Barges 70,000 1.43 



1) Discharge due to leaks 20,000 0,41 



2) Barge casualties 32,000 0.65 



3) Terminal operations 18,000 0,38 



All Other Vessels 850,000 17,36 



1) Discharge due to bilge 

 pumping, leaks and 



bunkering spills 600,000 12,25 



2) Vessel casualties 250,000 5,11 

 Offshore Operations 100,000 2.04 

 NON-MARINE OPERATIONS 



Refineries and Petrochemical 



plants 300,000 6.12 



Industrial Machinery 750,000 15.31 



Highway Motor Vehicles 1,440,000 29.41 



TOTAL 4,897,000 100.00 



1/ Marine Operations make about 49% of the total estimated annual 

 ~ Oil Pollution of the Oceans. 



192 



