The main sources of oil and oil product spills in Latvian marine waters  

         

Raised risk factors for the environment

Waste

Hazardous chemical substances

Environmental accidents
Legislation and international commitments
Number and causes of accidents events
Marine discharges of oil and oil product spills
Indicators
Terrestrial oil and oil product spills
Indicators

Radiation

Coastal geological processes

Cargo turnover

The main sources of oil and oil product spills in Latvian marine waters

Aerial surveillance


The main sources of oil and oil product spills in Latvian marine waters:

  • ships (including those outside of territorial waters, tankers, and ships for oil product collection and bunkering)
  • large enterprises in harbours,
  • lifting and disassembly of sunken ships and submarines; dredging of the polluted sediments in the Liepāja Military Harbour.

Oil and oil product spills from ships can be divided into two groups:

  • spill during operation of ships; and
  • accidental spills.

Analysis of the causes of pollution incidents indicated that, in about 90% of cases, oil products were released at sea with intent, for the purpose of saving money and time required for its safe disposal. Only 10% of the cases were due to accidents or negligence of responsible persons.

Number of oil and oil product spills at sea
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In accordance with the Helsinki Convention, oil terminals , harbours and ship repair harbours must offer waste collection and treatment services for oil residues, mixtures containing oil, and tank cleaning waters.

Spills during operation are regulated by international and national legislative acts which forbid the marine discharge of any oil or oil-containing mixtures, untreated waste water, and hazardous liquids, including untreated ballast water (closer than 12 nautical miles from the shore).

In this regard, the Baltic Strategy "Port Reception Facilities for Ship-generated Wastes and the No Special Fee System" of the Helsinki Commission (HELCOM) is being implemented, which calls for compulsory delivery of ship waste in harbours.
In accordance to the Helsinki Convention, the Latvian National Emergency Plan for Marine Pollution Incidents has been developed, and procurement of the necessary equipment and training of personnel is planned before 2001.