Risk and Radiation

DNA Repair

This was going to be a reply to a comment on one of my posts. However, I think it is an important issue so I am writing this post. The comment referenced a study1 on DNA repair centres in human cells. I have no problem with the study itself however, I do with one of […]

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“No discernible changes in future cancer rates and hereditary diseases”?

It is often quoted that Fukushima will produce “No discernible changes in future cancer rates and hereditary diseases”. This quote is from the UNSCEAR report on the Fukushima1. While other reports2 go into various criticisms of the UNSCEAR report this post is about what that phrase actually means. This post is not about whether this […]

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Graphite Weight Loss at AGR Reactors

There have been several reports in the news1 about EDF wanting to raise the limits of the amount of graphite which can be lost from the moderator of the AGR nuclear reactors. As usual the reports seem to me to not give some very important information. Here are just a few points I think it […]

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Drink Driving And Radiation Risk

Although I have talked about this topic previously here is another attempt of explaining a big misconception about radiation risk by comparing it to drink driving. If you drink and drive the probability that you will end up killing yourself or someone else is extremely small (say 1 in 10,000 per year)1. So why is […]

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Fukushima Health Effects

There has been a large increase in the number of abnormal thyroid growths found in children near Fukushima1. The normal rate would be less tha 1% 2 but the study found a rate of over 36%. There has been an increase 12.5% in the mortality rate3 in the area around Fukushima – that is 12,695 […]

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Is Natural Background Radiation is Safe?

Before we start I would like to restate that there is no scientific evidence whatsoever that health risks can be measured by total radiation dose alone. It is a complicated subject since it depends on the type of radiation emitted, whether it is internal or external to the body, what the chemical element is – […]

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Risk and Radiation

There are many discussions about the risk associated with radiation. I am not going to go into the various arguments about the affects of radiation here but try to explain risk and in particular risk due to exposure to radiation. There are several different definitions of Risk but it can be basically understood as the […]

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What Is A Sievert?

Background A Sievert is an attempt to quantify the danger of various radioactivity levels. Ionising radiation is measured in counts per second (called a becquerel). For example if a detector picks up 10 bits of ionising radiation every second then this is 10 becquerel. However, different types of radiation have different effects on the body. […]

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