?
I read one from about the same time and they also released a short video of them in the adit,floating their dog in on a surfboard. I seem to remember she was a Phd, although in what discipline I cant recall.

Possibly biological research! :lol:

Interesting paper.

As the adit only goes a short distance to a fall though, I struggle to see any attraction for explorers and the radon level is a good reason to not bother.

What I did like in the video was the shaft with rising main and what looked like a clack box, I wouldn't mind a visit there and do a bit of clearing.

Is it easy to find?

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As Roy says interesting paper.

My only (very) minor quibble is reference to the "Devon & Cornwall Prospecting Society". Not convinced they are a legit group - I've been knocking around the South West Mining Scene since 1995 and I've never heard of them.

What is "a legit group"

Any bunch of like minded people can club together to share an activity.

My view on things anyway.

I think that the mine description should be updated to state that the adit only leads to a fall, is full of water, and if you do go in you will glow in the dark when you come out.

Plenty of better places to go.

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Might I ask who published this paper?
I read one from about the same time and they also released a short video of them in the adit,floating their dog in on a surfboard. I seem to remember she was a Phd, although in what discipline I cant recall.

Two abandoned metalliferous mines in Devon and Cornwall, UK: radon hazards and geology

Gavin K. Gillmore ·, Paul S. Phillips, Gillian Pearce, Antony Denman

Dr Gavin K. Gillmore, Department of Environmental Science, University of Bradford, West
Yorkshire, BD7 lDP, UK.


Dr Paul S. Phillips, Reader in Waste Management, School of Environmental Science, University
College Northampton, Park Campus, Northampton, NN2 7AL, UK.

Gillian Pearce, Devon and Cornwall Prospecting Society, 44 Lancaster Drive, Paignton, Devon, TQ47RR, UK.

Dr Antony R. Denman, Head of Medical Physics, Department of Medical Physics, Cliftonville, Northampton General Hospital NHS Trust, Northampton, NNl 5BD, UK.

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Thanks.

I wonder if the "M" word could be part of the equation?

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What is "a legit group"

Any bunch of like minded people can club together to share an activity.

My view on things anyway.

By legit I would say NAMHO member, BCA insurance and greater longevity than a chocolate teapot.

I can't help suspecting that this is a one man band giving themselves a fancy name to give themselves some sort of legitimacy in an academic conference paper.

I may of course be totally wrong.

Of course.

Enlightenment!

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Thanks.

I wonder if the "M" word could be part of the equation?

Min*****

"International Radon Symposium". It sounds very very important.

Where did this titanic event take place? Redruth School?

Held annually, this year it's in San Diego, California

http://aarst-nrpp.com/wp/international-radon-symposium/ 

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Thanks for the info and YES! it was Gillian Pearce of the D&C Prospecting Society who published the info on Sth Terras and Tolgarrick. Levels of over 3 million becquerels (or buggeralls as they are often called) being quoted and was there one reading of 6M?...it sounded pretty 'frightening'. I've a feeling it was 'bigged up' a little to make it sound that way though,
I did have a copy of the report but haven't seen it for years, which leads me to think I may have dumped it.

Biological research indeed :lol:! ! ! :lol::lol:

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Perhaps someone should tell them to go back and repeat their experiment.

Uh-uh. This isn't how academic disputes are resolved. If you don't have data and suspect a published piece of work is incorrect, you either inform the corresponding author with your evidence (hence giving them the opportunity to retract the work), or you publish your views as a comment in the same journal (although this should generally be done within a year of the original publication). If you have data, it is beholden on you to publish in a peer-reviewed journal, laying out your methodology and results, and in particular, why the previous paper is flawed.

As you strongly believe your data from South Terras are correct, and Gilmore et al are wrong, and have flawed equipment, I suggest a short communication to Health Physics.

http://journals.lww.com/health-physics/pages/default.aspx 

Should only take 2-3 journal pages, a day to write at most.

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"peer-reviewed", now where have I heard that before.;D

"peer-reviewed", now where have I heard that before.;D

:lol:

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As I know very little about Radon I am keeping an open mind on this, possibly obvious from my postings about keeping out.

However, as a layman, I am wondering where floating dogs through on surfboards fits into the high risk equation.

Maybe someone can enlighten me on that.

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Seems the terminology has become more PC.

"it produces other radioactive elements called radon progeny (formerly called daughters)"

My original post seems to have stirred things up, and possibly caused upset (hopefully not offence) in some quarters, so maybe I should lay my cards on the table.

You hardcore explorers have the ability to assess the dangers associated with mine workings through long experience and knowledge. You intuitively can see the dangers that an armchair explorer (ie me) couldn't, and I'm pretty certain you would offer sensible caution to any newbie heading out on their own (hopefully finding someone to offer guidance).

I have been a classified radiation worker all my working life, initially carrying out X-ray scattering experiments, and for the past 25 years, carrying out neutron scattering measurements. Most (all) materials under neutron irradiation become activated and we have to deal with beta and gamma occasionally alpha emitters on a daily basis. In this we are supported by a group of professional health physicists who monitor our experimental beamlines for gamma radiation and neutron leakage, and then help with sample monitoring post experiments. We carry whole body dosimeters and are subject to radiation medicals to ensure we comply with health and safety regulations. To put this into some context, we are not permitted to handle encapsulated active samples with a dose rate of 70-100 muSv/h without health physics support, and these samples are immediately placed in lead castles until the activity decays to background. This can be hours, days, weeks, years depending which elements are in the sample, and at the Institut Laue Langevin (research reactor in Grenoble) it is sometimes never. Although I am not a health physicist, radiation is my patch, like mine exploring is yours, and hence my concern over people putting themselves at unnecessary risk. I uploaded the paper simply so people can make an educated decision on whether, or not, to explore these kind of mines.

For me, I don't know whether the results of Gilmore et al are accurate or not, however unlike Gove, I do subscribe to the view that experts have value. I would rather take at face value 3 experts from the field of health physics, even if they were wrong, than ignore their advice and expose myself to 4MBq/m^3 of radon.


And somewhat off topic, I don't login that frequently, so could someone explain what the M word is, and why it is so contentious:)

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My original post seems to have stirred things up, and possibly caused upset (hopefully not offence) in some quarters, so maybe I should lay my cards on the table.

You hardcore explorers have the ability to assess the dangers associated with mine workings through long experience and knowledge. You intuitively can see the dangers that an armchair explorer (ie me) couldn't, and I'm pretty certain you would offer sensible caution to any newbie heading out on their own (hopefully finding someone to offer guidance).

I have been a classified radiation worker all my working life, initially carrying out X-ray scattering experiments, and for the past 25 years, carrying out neutron scattering measurements. Most (all) materials under neutron irradiation become activated and we have to deal with beta and gamma occasionally alpha emitters on a daily basis. In this we are supported by a group of professional health physicists who monitor our experimental beamlines for gamma radiation and neutron leakage, and then help with sample monitoring post experiments. We carry whole body dosimeters and are subject to radiation medicals to ensure we comply with health and safety regulations. To put this into some context, we are not permitted to handle encapsulated active samples with a dose rate of 70-100 muSv/h without health physics support, and these samples are immediately placed in lead castles until the activity decays to background. This can be hours, days, weeks, years depending which elements are in the sample, and at the Institut Laue Langevin (research reactor in Grenoble) it is sometimes never. Although I am not a health physicist, radiation is my patch, like mine exploring is yours, and hence my concern over people putting themselves at unnecessary risk. I uploaded the paper simply so people can make an educated decision on whether, or not, to explore these kind of mines.

For me, I don't know whether the results of Gilmore et al are accurate or not, however unlike Gove, I do subscribe to the view that experts have value. I would rather take at face value 3 experts from the field of health physics, even if they were wrong, than ignore their advice and expose myself to 4MBq/m^3 of radon.


And somewhat off topic, I don't login that frequently, so could someone explain what the M word is, and why it is so contentious:)

Very good post. And totally agree, if you want to call bullshit stu then bring the proof to back it up :thumbup:

I've got no problem with people calling bullshit but at least back it up with some evidence or proof...

The m word.


MINERALS :surrender:

And somewhat off topic, I don't login that frequently, so could someone explain what the M word is, and why it is so contentious:)

Minerals
There is a lot of aggro over them and as such its become something of a forbidden topic on here.
Some will put the lives of themselves and others at risk, break down gates, and literally fight each other over them. On the positive side some professional mineral dealers are very kind and put a lot of money into reopening places and then allow explorers in. Fortunately the latter outnumber the former.

Trouble with me is that I know little about them and have little interest hence my getting hot (no pun intended) over the shaft in the video with a rising main and what appears to be a clack (valve) box. The finest example I have yet seen is in Cwffty Western Shaft, north Wales. Industrial archaeology and photographing 'minescapes' is my thing. Beside digging places open and building more and more powerful lamps and then rushing underground to try them out.

Attitudes to experts on here can be cynical, one big problem nowadays is that there are too many people coming from somewhere else, this tends to generate mistrust.

Take care

Roy

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Minerals
There is a lot of aggro over them and as such its become something of a forbidden topic on here.
Some will put the lives of themselves and others at risk, break down gates, and literally fight each other over them.

Thanks Roy, I understand now. My field of research is mineral physics, a branch of mineralogy, and I have my own views of mineral collectors (that I shall keep to myself).>:(

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