Radiation containment at Fukushima is proving tricky

Radiation containment at Fukushima is proving tricky

From BBC news article, 21-Aug-13.


Edit: here’s a better pic from BBC article the next day (22-Aug-13):




First picture is showing the damaged reactors and storage tanks for water that has been used to cool the reactors which are (still?) melting down.

Second picture is showing how the site is being over-run with additional tanks; approx. 400 additional tonnes of water need storage every day.

Clearly this isn’t a long-term solution, so I’m curious as to what’s next.

“A puddle of the contaminated water was emitting 100 millisieverts an hour of radiation…”

“One hundred millisieverts per hour is equivalent to the limit for accumulated exposure over five years for nuclear workers; so it can be said that we found a radiation level strong enough to give someone a five-year dose of radiation within one hour.”

The dose is probably worse than that because a dose delivered in a shorter time will likely have a greater effect on the body.

pic and quote from original article (link)


Frost Flowers

Frost Flowers

A neat pic from a small image set on the ‘back-breaking’ work done by scientists in the Arctic.

Frost flowers are delicate ice structures that … grow on new sea ice when the cold, moist air above becomes saturated. Frost then forms on imperfections on the icy surface, which seeds the flowers. Once seeded, frost flowers rise quickly as they wick moisture from the frozen surface, capturing salt and marine bacteria as they grow.