[ RadSafe ] BBC article: "Chernpobyl's legacy recorded in trees"

[Dimiter Popoff]

Hmmm, looks like a common thing that different colouring. Those
on the BBC photos are a lot more distinct/sharp than those on the other
photos I saw, though. But looking at them is about all I have
seen in my life when it comes to colours inside trees so I can't
possibly tell. One would expect that the people behind the
study must have known more than I do on trees and have accounted
for common phenomena... But then this is only a news article,
won't be the first one to mislead if that has been the purpose.
My guess on that is as good as anyones, obviously.

Dimiter

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Dimiter Popoff               Transgalactic Instruments

http://www.tgi-sci.com
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>Date: Mon, 12 Aug 2013 09:13:53 -0400
>From: Mohan Doss <mohan.doss at fccc.edu>
>To: radsafe at health.phys.iit.edu
>Subject: Re: [ RadSafe ] BBC article: "Chernpobyl's legacy recorded in trees"
>
>     Here are a few websites that show photos of tree rings changing color:
>
>          
>http://www.simplejoyfulliving.com/2012/12/discover-nature-tree-rings.html
>
>          
>http://phys.org/news/2012-05-ancient-tree-ring-southwest-today-megafires.html
>
>          http://www.arborday.org/trees/ringsLivingForest.cfm
>
>                                                  Mohan
>
>
>
>Mohan Doss, Ph.D., MCCPM
>Medical Physicist,
>Associate Professor, Diagnostic Imaging,
>Fox Chase Cancer Center, R427
>333 Cottman Avenue,
>Philadelphia, PA 19111-2497.
>Phone: 215 214-1707
>Fax:   215 728-4755
>E-mail:  Mohan.Doss at fccc.edu
>
>
>On 8/11/2013 10:13 PM, Jeremy Nicoll wrote:
>> I wonder if this chap's cut down many trees?
>>
>> This appearance is not uncommon, certainly in the southern hemisphere, but we don't get much fallout.
>>
>> I can't explain it, but then I'm not a Health Botanist, or a forester for that matter.
>>
>> Jeremy
>>
>>
>> -----Original Message-----
>> From: radsafe-bounces at agni.phys.iit.edu [mailto:radsafe-bounces at agni.phys.iit.edu] On Behalf Of Brennan, Mike (DOH)
>> Sent: Saturday, 10 August 2013 4:29 a.m.
>> To: The International Radiation Protection (Health Physics) MailingList
>> Subject: Re: [ RadSafe ] BBC article: "Chernpobyl's legacy recorded in trees"
>>
>> I certainly think this is a field worthy of future research.
>>
>> It would be interesting to find out what cause the color change, and if the growth rate before and after were significantly different.  I do admit to being a
>>
>> The trees with the unusual growth patterns are more along the lines of what I would expect, though then it becomes a statistics game, as I have seen the occasional tree like that in areas not impacted by massive fallout.
>>
>> Still, interesting, and worthy of more work.
>>
>> -----Original Message-----
>> From: radsafe-bounces at health.phys.iit.edu
>> [mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of Dimiter Popoff
>> Sent: Friday, August 09, 2013 8:39 AM
>> To: radsafe at health.phys.iit.edu
>> Subject: Re: [ RadSafe ] BBC article: "Chernpobyl's legacy recorded in trees"
>>
>>> It'd be interesting to get a thin (1") or so slice across the trunk
>>> and do an autoradiograph to see if there is distributed radioactive
>>> material in the wood,
>> Yes, and some spectra of samples at a few depths of interest would likely also be very telling.
>>
>> Dimiter
>>
>>> From: "Rees, Brian G"<brees at lanl.gov>
>>> To:<radsafe at health.phys.iit.edu>
>>> Date: Fri, 9 Aug 2013 15:21:44 +0000
>>> Subject: Re: [ RadSafe ] BBC article: "Chernpobyl's legacy recorded in
>> trees"
>>> I remember that hair of people with high exposures grows back coarser,
>>> and sometimes a slightly different color.  It sounds like it might be
>> related.
>>>    It'd be interesting to get a thin (1") or so slice across the trunk
>>> and do an autoradiograph to see if there is distributed radioactive
>>> material in the wood, or just at the "event horizon"....
>>>
>>> Brian Rees
>>>
>>> -----Original Message-----
>>> From: radsafe-bounces at health.phys.iit.edu
>>> [mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of Dimiter
>>> Popoff
>>> Sent: Friday, August 09, 2013 10:01 AM
>>> To: radsafe at health.phys.iit.edu
>>> Subject: [ RadSafe ] BBC article: "Chernpobyl's legacy recorded in
>> trees"
>>> http://www.bbc.co.uk/news/science-environment-23619870
>>>
>>> The photo shows a distinct change of colour which as I get it matches
>>> the accident date.
>>> But it looks very distinct. I wonder how did they determine the cause
>>> was radiation and not some chemistry thing, perhaps/probably also
>>> related to the accident.
>>>
>>> Dimiter
>>>
>>>
>>> ------------------------------------------------------
>>> Dimiter Popoff               Transgalactic Instruments
>>>
>>> http://www.tgi-sci.com
>>> ------------------------------------------------------
>>> http://www.flickr.com/photos/didi_tgi/sets/72157600228621276/
>>>
>>>