The Human Consequences of the Fukushima Dai-ichi Nuclear Power Plant Accidents

Tuesday, September 29, 2015
By Paul Martin

By Eiichiro Ochiai
Global Research
September 29, 2015

When a very strong earthquake (magnitude 9.0) hit the Pacific ocean side of the northeastern part of the main island of Japan on March 11th (3.11) 2011, the accompanying huge tsunami wiped out many communities along the coast. Close to 20,000 people lost their lives, mainly due to the tsunami. Many who were stripped of their homes and livelihood continue to struggle to recover their ways of life.

One of the most disastrous results of the quake/tsunami was the devastation at the Fukushima Dai-ichi Nuclear Power Plant (Fk-1) of the Tokyo Electric Power Co (TEPCO). The plant is known in Japan as Fk-1 (Fuku-ichi. It released an enormous amount of radioactive material. Its effects on living organisms have already begun to be felt in many ways, though it’s been only four and a half year[s]. It may, however, be premature to make a judgment as to the degree of disaster, in light of the fact that the after-effects of the Chernobyl accident of 1986 are still unfolding.

This article discusses some prominent features of the current situation (as of August 2015) in the aftermath of the Fk-1 accident.

The Fukushima Nuclear Power Plant Accident

Four of the six reactors (units 1~4) on the premises of the Fk-1 plant experienced serious accidents including explosion, while the other two reactors (5 and 6) were not in operation and remained intact, as they are located slightly apart from the others.

Units 1~3 were operating at the time, but shut down automatically when the quake hit. The shutdown reactors need to be continuously cooled, because the fuel rods, though out of fission reaction, release great heat due to the nuclear decaying process of radioactive fission products. The quake caused substantial damage to the reactors, and the cooling systems of units 1~3 did not function properly due to both physical damage and human errors. As a result, the fuel rods in units 1~3 “melted down”.

Water added from outside for cooling purposes reacted with the hot rods to form hydrogen gas. The resulting hydrogen explosion in unit 1 stripped the roof on March 12th. Unit 2 showed no apparent damage, but released an enormous amount of radioactive material through holes created by the quake, mostly on March 15 and thereafter. The explosion at unit 3 on March 14 was most damaging. TEPCO insists that it was also a hydrogen explosion, but many observers offered different opinions, including one that it a small-scale nuclear fission explosion occurred. Unit 4 had no nuclear fuel rod in the reactor, though a large number of spent as well as new fuel rods were in its storage pool. It exploded also, its cause unknown, though TEPCO speculated that hydrogen gas entered from the adjacent unit 3, and exploded.

Release of Radioactive Material from Fk-1

The Rest…HERE

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