Ralf Trapp, a French-based international chemical weapons disarmament consultant and scientist, said chemical weapons have been transported by ship to remote locations in the past, including by the U.S. to the Pacific island of Johnston Atoll for destruction. But Trapp said he knew of no prior use of a boat or floating platform for on-board destruction of the lethal substances on the scale that would be required to dispose of Syria's stocks.
Trapp told the AP that using a sea-based facility would have numerous advantages, including the ability to position it far from populated areas.
But he said there were many problems to be addressed beforehand, including restrictions in the U.N. Convention on the Law of Sea intended to protect the marine environment, and how to transport the highly toxic cargo so it presents a minimal risk for sailors, other maritime traffic and the oceans in general.
In the case that the chemical weapons are incinerated, Trapp said, experts would have to decide what to do with the liquid waste resulting from the use of water to quench and treat the gases generated as byproducts.
"It needs to be assessed whether such saltwater streams can be released without negative effects on the maritime environment, or whether such waste streams need to be treated at sea or stored for subsequent treatment on land," the disarmament consultant said.
In Brussels, diplomats from NATO member countries and Russia were briefed Wednesday on the status of the joint United Nations-OPCW mission to oversee the destruction of Syria's chemical weapons stocks and production facilities.
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Pauline Jelinek in Washington and John-Thor Dahlburg in Brussels contributed.