I've been mostly reading and discussing other threads before but its my first thread. So please bare with me if I make any mistakes.
After the Japan Nuclear Crisis I've been looking for
Turkish Government Atomic Institute
website to catch up with the radiation levels in air around Turkey. But I saw that the data shown has not been updated since 24 July
2009, 11:01 (Thou it says the data is monitored 24 hours a day and updated on the website in an hourly basis but its not updated since July, 2009)
If you see the Turkey map from the link I mentioned, you will see some high levels on different cities. To make it short, lets take the highest 3 data
shown between cities are:
Balikesir - 185 nSv/h
Gumushane - 143 nSv/h
Kars - 140 nSv/h
I've counted 8-9 cities above the safe limit in the map total and they are not located in the same region. Totally in different parts of the country.
Which I converted and calculated the safe limits as 114.15 nSv/h
(I explained my calculation below).
And this data shown in the map is in nanoservierts per hour (nSv/h).
When I checked the annual average dose safe limits from McGill University Environment and Safety
dept. website on Radiation Dose Limit
in the specific topic named '3.6 NON-RADIATION WORKERS AND THE GENERAL PUBLIC' and I saw:
The legal dose limit for non-radiation workers and members of public (i.e. everyone except NEWs) is 1 mSv (100 mrem) per annum
So when I tried convert this level from mSv/year to nSv/hour.
First I have converted mSv to nSv with this calculator which showed that 1mSv equals to 1,000,000
I divided 1,000,000 nSv/year dose to 365 days to get the daily dose, which is 2,739.72 nSv/day and then divided it to 24 to get the hourly dose which
gave me a 114.15 nSv/h as a safe dose limit.
(I'm not sure if this straight basic calculation of mine is also correct in radiation level
When I compared the safe limit with the data collected on several cities mentioned above, I see that they are above the limit. Since the data is from
July, 2009 and considering there were no radiation or nuclear danger at that time, I was surprised to see the levels seemed interestingly above the
safe limit, yet shown with green to indicate that it is safe.
So questions rise;
1- Why the levels are above the safe limit in normal conditions and they are all shown in green (which I assume is pointing that is it safe)?
2- Is there are other countries that has a higher level data than the safe limit in a normal condition?
3- What might cause these spikes in the radiation levels in a country that has no Nuclear Reactors or anything related to radiation?
Please consider that there are NONE nuclear reactors in Turkey until now and those datas are from different parts from the country, it just seems not
normal to me. Please correct me if I'm wrong.
Thank you, and again, I'm sorry If I made any mistakes.