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Radioactive water from the Fukushima Daiichi Nuclear Power Plant in Japan began being discharged into the Pacific Ocean on 11 March 2011, following the Fukushima Daiichi nuclear disaster triggered by the TÅhoku earthquake and tsunami. Three of the plant's reactors experienced meltdowns, leaving behind melted fuel debris. Water was introduced ...
Removing contaminated water, both in the plant itself and run-off water that spread into the sea and nearby areas, became a huge challenge for the Japanese government and plant workers. During the containment period following the accident, thousands of cubic meters of slightly contaminated water were released in the sea to free up storage for ...
In comparison, after the Chernobyl reactor accident, only 0.1% of the 110,000 cleanup workers surveyed have so far developed leukemia, although not all cases resulted from the accident. [12] [13] [14] However, 167 Fukushima plant workers received radiation doses that slightly elevate their risk of developing cancer.
In order to prevent the outflow of the highly radioactive water at the turbine building of Unit 2, the water was transferred to the Centralized Radiation Waste Treatment Facility since 19 April. TEPCO planned to install facilities for processing the stored water and reusing treated water to inject it into the reactors.
Some locations near the crippled nuclear power plant are estimated to be contaminated with accumulated radiation doses of more than 500 millisieverts a year, diminishing residents' hopes of returning home anytime soon. Even areas away from the nuclear plant are still suffering from a sharp decline in tourism and sluggish financial conditions. [51]
These particles were potentially hazardous, even in low-level radiation areas. [10] The radioactive level in each individual hot particle could rise as high as 10 kBq, which is a fairly high dosage of radiation. [10] These liquid hot particle droplets could be absorbed in two main ways; ingestion through food or water, and inhalation. [10]
Patients receiving treatment for prostate cancer and cancer of the cervix receive lethal doses of radiation. [14] [94] 9 August 2004: Mihama Nuclear Power Plant accident, 4 fatalities. Hot water and steam leaked from a broken pipe (not actually a radiation accident). [95]
Spent nuclear fuel stays a radiation hazard for extended periods of time with half-lifes as high as 24,000 years. For example 10 years after removal from a reactor, the surface dose rate for a typical spent fuel assembly still exceeds 10,000 rem/hour—far greater than the fatal whole-body dose for humans of about 500 rem received all at once.