Bottom line is no body is sure how the radio active waste shall affect marine Life and Environment.
They just make a general assertion that the effects will be minimal with out any supporting evidence and no one has determined what the ‘Safety Limits’of radioactive materials dumped in the ocean are.
Japan, with no other options in sight is forced to dump Nuclear waste into the sea, treaties notwithstanding.
The Effects to So Sea water and the effect it will have on ground water level nobody knows.
We have created the Nuclear Monster,let us suffer from it.
Tokyo Electric Power Co. on Monday began releasing 10,000 tons of low-level radioactive water from the Fukushima No. 1 power plant into the Pacific Ocean on Monday evening to help accelerate the process of bringing the crippled complex under control.
The radical step was taken to make room for the more radioactive water that is being pumped out of the No. 2 reactor’s turbine building.
The utility also said it plans to release 1,500 tons of radioactive water being stored under the No. 5 and No. 6 reactors, which have been safely shut down.
The government said dumping the water will pose “no major health risk” and is inevitable in order to rescue the plant.
Tepco will try to minimize the environmental impact of the dump by setting up an underwater silt fence similar to an oil fence outside the seawater intake near the damaged No. 2 reactor, where toxic water is already leaking into the sea from a cracked storage pit.
Radioactive Waste Dumping.
Greenpeace first encountered a vessel routinely and deliberately dumping radioactive
waste at sea, approximately 400 miles South West of Cornwall in July 1978. The area
had been specified by the Nuclear Energy Agency (NEA), an off-shoot of the
Organisation for Economic Co-operation and Development (OECD), as the designated
dumpsite of the western European nuclear industry. The Greenpeace ship Rainbow
Warrior found the Gem, a vessel chartered annually by the UK Atomic Energy Authority
(UKAEA) to dump so-called low- and intermediate-level radioactive wastes from
medical and military establishments and nuclear power plants.
Since its early days, in the late 1940s, the nuclear industry had chosen the oceans as a
convenient place to dispose of its inconvenient wastes. The USA, the then USSR, France,
the United Kingdom, Germany, Sweden and other states used the sea as a radioactive
dump, both in the Pacific and the Atlantic, and they were determined to continue.
The Oslo Convention was the first regional treaty to regulate the dumping of wastes at
sea – it was negotiated in 1972 by the countries bordering the North-East Atlantic. The
nuclear industry successfully blocked efforts to include radioactive wastes within the
auspices of the convention. Consequently, while the Convention regulated the dumping
of sewage sludge, dredging spoils, and organohalogen compounds (amongst others) for
almost twenty five years, the signatory nations had no right to even comment on the
dumping of radioactive wastes. Yet, paradoxically, the OECD/NEA designated dumpsite
for radioactive wastes was inside the area covered by the Convention.
A few months later in 1972 the negotiations on the London Dumping Convention were
concluded. This was the first global treaty to regulate the dumping of wastes at sea. This
time the negotiations were less dominated by the Western European nuclear states, and,
as a result, the dumping of so-called high-level radioactive wastes was banned.
The first reported sea disposal operation of radioactive waste was carried out by the USA in 1946 in the North-East Pacific Ocean and the latest was carried out by the Russian Federation in 1993 in the Japan Sea/East Sea. During the 48 year history of sea disposal, 14 countries have used more than 80 sites to dispose of approximately 85 PBq (1 PBq = 1015 Bq) of radioactive waste (Fig. 10).