Sentences with phrase «about radiation releases»

Ongoing challenges with managing the damaged reactors — and concerns about radiation releases — mean the Fukushima disaster is far from over.

Not exact matches

At low altitudes, about half the energy of such a bomb is released in the air blast, 35 percent as heat and 15 percent as nuclear radiation.

There is a lot of disagreement about if microwaves release radiation or can cause harm this way.

The World Health Organization (WHO) estimates that the typical absorbed dose of mercury from amalgams is one to twenty - two micrograms per day, with most values in the range of one to five micrograms per day.16 Various factors, including gum chewing and bruxism, can increase these exposures to an upper range of about one hundred micrograms per day.7 Preliminary evidence also suggests that certain types of electromagnetic radiation, including EMR from mobile phones and from magnetic resonance imaging (MRI) may increase the release of mercury vapor from dental amalgams.17

When we say «positive» and «negative» feedbacks in the sense of radiation (so I'm not talking about carbon - cycle responses such as methane release from the oceans or such) we're referring to temperature - sensitive variables which themselves affect the radiation budget of the planet.

The additional exposures received by most Japanese people in the first year and subsequent years due to the radioactive releases from the accident are less than the doses received from natural background radiation (which is about 2.1 mSv per year).

As I read reports about the release of more than 11,000 tons of radiation - laced water into the sea from the damaged nuclear plant in Japan, I recalled reporting I did more than a decade ago on the many uses of silt barriers — essentially curtains suspended in water — to hold back everything from oil slicks to the bursts of polluted runoff flowing into coastal waters from city storm drains after heavy storms (the water can be pumped and treated once the system is not overloaded).

Thus we hear so much about «down welling» re - radiation from the atmosphere warming up the planet dangerously because humanity is releasing a certain amount of CO2 that would not otherwise be in the atmosphere.