Japan’s Nuclear Emergency Response Headquarters finally admitted earlier this month that reactors 1, 2, and 3 at the Fukushima plant experienced full meltdowns.
TEPCO announced that the accident probably released more radioactive material into the environment than Chernobyl, making it the worst nuclear accident on record.
Meanwhile, a nuclear waste advisor to the Japanese government reported that about 966 square kilometres near the power station - an area roughly 17 times the size of Manhattan - is now likely uninhabitable.
In the US, physician Janette Sherman MD and epidemiologist Joseph Mangano published an essay shedding light on a 35 per cent spike in infant mortality in northwest cities that occurred after the Fukushima meltdown, and may well be the result of fallout from the stricken nuclear plant.
The eight cities included in the report are San Jose, Berkeley, San Francisco, Sacramento, Santa Cruz, Portland, Seattle, and Boise, and the time frame of the report included the ten weeks immediately following the disaster.
“There is and should be concern about younger people being exposed, and the Japanese government will be giving out radiation monitors to children,” Dr MV Ramana, a physicist with the Programme on Science and Global Security at Princeton University who specialises in issues of nuclear safety, told Al Jazeera.
Dr Ramana explained that he believes the primary radiation threat continues to be mostly for residents living within 50km of the plant, but added: “There are going to be areas outside of the Japanese government’s 20km mandatory evacuation zone where radiation is higher. So that could mean evacuation zones in those areas as well.”
Gundersen points out that far more radiation has been released than has been reported.
“They recalculated the amount of radiation released, but the news is really not talking about this,” he said. “The new calculations show that within the first week of the accident, they released 2.3 times as much radiation as they thought they released in the first 80 days.”
According to Gundersen, the exposed reactors and fuel cores are continuing to release microns of caesium, strontium, and plutonium isotopes. These are referred to as “hot particles”.
“We are discovering hot particles everywhere in Japan, even in Tokyo,” he said. “Scientists are finding these everywhere. Over the last 90 days these hot particles have continued to fall and are being deposited in high concentrations. A lot of people are picking these up in car engine air filters.”
Radioactive air filters from cars in Fukushima prefecture and Tokyo are now common, and Gundersen says his sources are finding radioactive air filters in the greater Seattle area of the US as well.
The hot particles on them can eventually lead to cancer.
“These get stuck in your lungs or GI tract, and they are a constant irritant,” he explained, “One cigarette doesn’t get you, but over time they do. These [hot particles] can cause cancer, but you can’t measure them with a Geiger counter. Clearly people in Fukushima prefecture have breathed in a large amount of these particles. Clearly the upper West Coast of the US has people being affected. That area got hit pretty heavy in April.”