.JPG)
Showing posts with label Contaminated debris. Show all posts
Showing posts with label Contaminated debris. Show all posts
Toxic Japanese debris piles up on Alaska's shore - CBS News
Toxic Japanese debris piles up on Alaska's shore - CBS News
The comment about the half life is erroneous because the half life of isotopes likely to have contaminated the debris have half lives of:
The comment about the half life is erroneous because the half life of isotopes likely to have contaminated the debris have half lives of:
Caesium-137 is also a particular threat because it behaves like potassium and is taken up by cells throughout the body. Additionally, it has a long, 30-year half-life.[322] Cs-137 can cause acute radiation sickness, and increase the risk for cancer because of exposure to high-energy gamma radiation. Internal exposure to Cs-137, through ingestion or inhalation, allows the radioactive material to be distributed in the soft tissues, especially muscle tissue, exposing these tissues to the beta particles and gamma radiation and increasing cancer risk.[323] Prussian blue helps the body excrete caesium-137.[321][324]
Strontium-90 behaves like calcium, and tends to deposit in bone and blood-forming tissue (bone marrow). 20–30% of ingested Sr-90 is absorbed and deposited in the bone. Internal exposure to Sr-90 is linked to bone cancer, cancer of the soft tissue near the bone, and leukemia.[325] Risk of cancer increases with increased exposure to Sr-90.[325][326]
Plutonium is also present in the MOX fuel of the Unit 3 reactor and in spent fuel rods.[327] Officials at the International Atomic Energy Agency say the presence of MOX fuel does not add significantly to the dangers. Plutonium-239 is particularly long-lived and toxic with a half-life of 24,000 years and remains hazardous for tens of thousands of years.[328] Experts commented that the long-term risk associated with plutonium toxicity is "highly dependent on the geochemistry of the particular site."[329]
Source: Wikipedia
Source: Wikipedia
[edit]
Tsunami 'ghost ship' sunk by US Coast Guard - in pictures | World news | guardian.co.uk
Tsunami 'ghost ship' sunk by US Coast Guard - in pictures | World news | guardian.co.uk: A "Japanese ship carrying more than 9,000 litres of diesel fuel has been sunk by the US Coast Guard, after it was washed out to sea by the 2011 tsunami. The Ryou-Un Maru, which had been destined for scrap, had been drifting toward busy shipping lanes off the coast of Alaska"
Fukushima nuclear cleanup could create its own environmental disaster | Environment | guardian.co.uk
Fukushima nuclear cleanup could create its own environmental disaster | Environment | guardian.co.uk: "Decontaminating the Fukushima region to remove radioactive particles will not be possible without removing large amounts of soil, leaves and plants"
Debris from Japan tsunami washes up on B.C. shores
Debris from Japan tsunami washes up on B.C. shores: "Beachcombers in Tofino have noticed a significant uptick in debris of Japanese origin on their shores, a sign that items swept out to sea by the tsunami in Japan may have found their way to B.C. earlier than expected."
Subscribe to:
Posts (Atom)
.JPG)
.JPG)