Sentences with phrase «level of background radiation»

The natural level of background radiation has doubled.

Minute levels of background radiation in the 1960s bicaragua strong evidence for a young.

Not exact matches

According to previous simulations, UV - B radiation at the end of the Permian may have increased from a background level of 10 kilojoules (just above current ambient levels) to as much as 100 kilojoules, due to large concentrations of ozone - damaging halogens spewed from volcanoes (SN: 1/15/11, p. 12).

Levels detected in a short duration pulse at the plant itself have reached as high as 8,217 microSieverts per hour, or eight times the dose endured in a typical CT scan and four times the normal dose of background radiation in a year.

In comparison, the average annual exposure from background levels of radiation in the UK is around 2.7 millisieverts.

Siting the experiment under nearly a mile of rock was the first of many steps collaborators took to reduce interference from background levels of radiation.

The distributions of annual external doses estimated for each region overlap with each other, demonstrating that the personal external individual doses in locations where residence is currently allowed in Fukushima Prefecture and in Belarus are well within the range of estimated annual doses due to the background radiation level of other regions / countries.

The team estimates that a background level of radiation, supplied by other galaxies, could delay gas in a galaxy (call it galaxy A) from fragmenting quickly into smaller clouds that would form stars.

He states that the levels of radiation in the US Pacific coast are rather insignificant when compared to other background sources of radiation that already exist in the US, or compared to our exposure flying on an airplane.

The Three Mile Island nuclear power plant accident, which exposed nearby Pennsylvania residents to a level of radiation less than the natural annual background level, will cause few if any deaths.

The amount of radiation leaked was nil — that is in the range of millirems, way down the natural radiation background levels.

The authorities had scanned the area and declared it clean but the Greenpeace team identified hotspots with dangerous levels of radiation, including two places which had levels higher than 5000 times normal background.

Inexorably rising levels of background tropospheric ozone result from the VOC emissions created when burning fuel, reacting to UV radiation.

The biggest increase in background radiation levels world wide was during the peak of atmospheric weapons testing during the 1960s raising the level by about 5 %.

He was right about so many things — the background nineteenth - century CO2 concentration level and its increase over the twentieth century; the importance of high - quality temperature data and the warming trend observed over much of his lifetime; the infrared spectroscopy of CO2 and its effect on «sky radiation»; and more.

But, if we leave the fission products alone for a few hundred years, they will decay to normal background levels of radiation (Safe enough we don't need to worry about them as much).

And remember, we are talking about an additional radiation exposure in the realm of 0.0002 mSv for those living near a nuclear power plant, versus a background level of 2 to 4 mSv (depending on where you live) due to everything from cosmic rays to ground - derived radon emission to eating bananas (this last one gives you more radiation than the NPP).