km Ports: Port-of-Spain, Pointe-a-Pierre, Scarborough Merchant marine: 42 ships (1,000 GRT or over) totaling 940,264 GRT/1,315,156 DWT; includes 13 cargo, 4 refrigerated cargo, 1 oil tanker, 4 chemical tanker, 1 livestock carrier, 6 oil tanker, 1 chemical tanker Airports: total: 15 usable: 9 with runways 1,220-2,439 m: 1 with permanet-surface runways: 137 with runways 1,220-2,439 m: 0 Telecommunications: 1,500 radio receivers (1987 est.); broadcast stations
electrolysis