to be water, authorities reportedly stepped up security at the station afterwards. Sarin Gas:Sarin, (also known as GB, isopropyl methylphosphanofluoridate) is a colorless and odorless gas, has a lethal dose of 0.5 milligram for an adult. Its 26 times more deadly than cyanide gas and is 20 times more deadly than potassium cyanide. Just 0.01 milligram per kilogram of body weight a pinprick sized droplet can kill a human. The vapor is slightly heavier than air, so it floats close to the ground. Under wet and humid weather conditions sarin degrades swiftly, but as the temperature rises up to a certain point, sarin increases its lethal duration. It was discovered by G. Shrader in Germany in 1939. National & International Impact:The attack on the Tokyo subway system had a major impact on Japan itself and international community. The government immediately came under criticism for having failed to move sooner against Aum Shinri Kyo or to solve the earlier cases of sarin poisoning. Later that month, fear of a possible chemical attack led to the mobilization of up to 60,000 police officers throughout Japan. Police would notice thousands of tourist spots across the nation, keeping a close watch on hotels, amusement centers, railway stations and underground shopping malls. Everybody in the country was talking about what was happening among them. The Tokyo subway attack also created ripples abroad. Security was tightened in subway systems in different cities, including New York, Washington, Milan, Rome and especially the South Korean cities- Seoul. Just two days after the Tokyo attack, there was a similar scare in Seoul when at least ten people were taken to hospital after mystery gas fumes leaked through several floors of a 19-storey office building. However, the following day it was announced that a backflow of carbon monoxide into a boiler vent had probably been responsible. The Seoul subway system was still on emergency alert a month after t...
