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radiation levels in London Ontario may be extreme.
June 17, 2018
10:16 pm
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Jamie
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This was just told to me by my stepfather who is ex Canadian air force, while in the miltary he was required to wear a badge like device, essentially it was a portable detection film inside a plastis tube made to detect radiation called a dosimeter.

Not long ago he was in contact with a friend in the field and asked for a brand new one. It was delivered last week and when he opened it it went from 3 to 5. He lives in downtown London Ontario .

If there's anyone that can explain the 3-5 change, and let me know how bad or not that is, id like to know.

Apparently my dad believes it to be worth contacting the proper authorities and has. As of yet he has received no reply.

He was in a hurry and hard to understand. I will get more information if I can. In the mean time anyone with more knowledge of this ,that can shed some light on it,please share it.

June 18, 2018
9:39 am
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greeney2
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What kind of job did he have in the military that required it?  I'm sure many military jobs might involve work near radiation of some sort. 

I do not know the particulars of the numbers, but they are used in medical or other places with radiation exposure, usually worn on the chest. I did not require one, and worked only 75 feet from Xray technicians who xrays finished welds.  The parts were inside a lead lined room, the technician would operate from the outside. Metal xrays are many many times stronger than medical levels of xrays, so possible heavy dosage could happen. The rooms had all kinds of safety features so you could not be trapped inside, while the xray tube is live. Sometimes live isotopes are used and those are very dangerous, usually in the field outside.  Dosimeters are common in my places where radiation is possible. Most all the inspectors and NDT people all had dosimeters. 

With all the cell phones, I'm not sure if those can affect a dosimeter reading??? My understanding is they are issued to specific individuals, they have some sort of film system, and are evaluated in labs, to document each persons individual annual exposure levels. They are issued to one person, and not shared. Not real sure how that all is documented, but if you work in fields like radiology your exposure record is will documented. 

June 18, 2018
12:35 pm
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Jamie
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He was a pilot, then a technician after he could no longer fly.

Im trying to get the actual make of the dosimeter to find out the proper value system. So far any paper I have read shows levels to 4 , explains the exposure but I'm not sure if what I'm reading is universal for all dosimeters.

This one ,with serial # 809738 and no other markings, only reads to 5 so,it isn't good, no matter what.

June 19, 2018
10:25 am
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Jamie
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Still no reply from any authorities on the matter.

I've ordered a personal dosimeter from a supplier near Toronto. It should arrive in a few weeks. At which point I will be taking multiple readings around london. It's also worth noting that General Dynamics, a military supply company is also nearby. I located a friend who previously worked there, and he tells me that they have warehouses scattered across the city.

I would urge anyone in the area,with access to a dosimeter or any other device(geiger counter etc...) to do the same. If you do, could you post the results here?

Once I have enough readings and it's conclusive. I will be taking this to the news.

I hope this is nothing, I really do. But the lack of response from our Canadian government is unsettling. To say the least.

June 20, 2018
3:15 pm
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Jamie
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Just to clarify why my dad is worried.

He says if he got out of the plane with that badge on, he would be in medical, receving treatment.

Again, I am not knowledgeable in this field. Nor do I know whether contributing factors like cell phones, and other waves, bombarding the film will make it react as it has.

I am still hoping for any information that will help. 

Still no response from our Canadian government.

June 20, 2018
4:56 pm
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greeney2
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I don't know if this helps much just looked up some basics about dosimeters. Didn't take long to get confused about them, as there are many types of dosimeters. apparently measure different things, also down at the page bottom under references, a lot of subjects related to types and kinds, measurements and doses, rate counters. Any charts I saw,  were confusing and I didn't understand, probably those in radiography its all basic stuff. This was the wikipedia link to them.

https://en.wikipedia.org/wiki/Dosimeter

I also saw a link the other day looking this up on a dosimeter instructions, that indicated geographic locations around the world have different expected background levels. Your city may have different known readings from other locations naturally. 

They used them where I worked, but were only required if you were in real close proximity to possible exposure which was powerful Xray of welds, specially space shuttle main engine welding. In some cases xraying thru several inches of Nickle based alloys, so considerably more powerful than you chest Xray. This kind of Xray only emits radiation, when the Xray tube is energized, as opposed to live radioactive isotope. Turned off they do not emit radiation, unlike a isotope.

My company did a study for us welders, they were worried that our welding tungsten contains 2% thorium, that has some radioactivity. Welders have to rind it to a sharp point, so they tested to see if the grinding dust exposed us to trace elements, and any radiation. Turned out to be a little to no risk.  They also did a study on one or our welding rods for aluminum, that contained trace elements of beryllium.  We all got chest Xrays, and I even had to go for a cat scan, it was all found to be not a problem. 

If I talk to one of the guys from work I keep in touch with, I'll ask about dosimeters, one of them was an welding inspector.

June 20, 2018
6:08 pm
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Jamie
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Thanks greeny2,

I appreciate your help,as I said, I'm learning as much as I  can,not only about the severity , but the tech as well.

Getting one should help a bit, I'm sure 🙂

June 23, 2018
10:38 am
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Jamie
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Just an update,

Still nothing from the Canadian government. No phone call, text message or letter. No acknowledgment whatsoever.

You would think, if it were nothing, they would say so, at least to help easy an old mans mind.

This is the most disturbing aspect of this whole thing.

June 29, 2018
10:14 am
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Jamie
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So, still nothing from the Canadian government agencies.

I have tracked my dosimeter to a week or so away. I'll keep updating , whether or not we hear back, until I can start taking readings myself.

July 10, 2018
10:19 am
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Jamie
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Well, things may take a little longer now. Apparently,I missed the delivery and the carrier sent it back. I'm contacting the seller to resend it.

Still nothing from the Canadian government.

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