Lead in teeth holds secrets of person`s origins, research shows
Orlando: The lead in human teeth holds clues about where a person grew up and can help criminal investigators and archeologists working with old or decomposed corpses, according to a University of Florida researcher.
Because lead ore deposits around the world differ, and as young people`s teeth absorb traces of the metal in the environment, the region where a person grew up can be distinguished through lead analysis of a tooth, said geologist George Kamenov.
His study on the topic will appear in the August issue of Science of The Total Environment, a peer-reviewed journal.
"If you were born in Europe and then came to the U.S., yes, I will be able to see that," Kamenov said. "I was born in Bulgaria so I have the European ... signal."
Kamenov said he has worked with law enforcement officers on cold cases, with lead analysis helping investigators narrow their focus.
In addition to aiding authorities in identifying bodies, the analysis can help archeologists locate human remains on an historical timeline, he said.
The impact of leaded gasoline used from the 1920s through 1980s is also reflected in the teeth, which can help narrow a body`s age, Kamenov said.
Teeth can reveal whether a person spent formative years in the United States versus Europe, South America, Australia or other broad regions, he said.
Beyond lead, Kamenov said that analysis of oxygen in bones, which regenerate every seven to 10 years, can pinpoint where a person spent the past decade. Other chemical elements in hair and nails provide information about the person`s location over the previous several months, he said.
More from India
More from World
More from Sports
More from Entertaiment
- IAF Mirage fighter plane lands on Yamuna Expressway!
- 'Maggi' under regulatory scanner for excess amount of lead, MSG
- Watch: Michelle Obama's 'Gimme Five' fitness video
- When Subramanian Swamy shocked people at a wedding!
- Mumbaikars join hands to save Pakistani teen with rare illness
- Mumbai: Diamond export company denies job to Muslim youth
- Aapke Sitare: Astro prediction for May 21, 2015
- PM Modi speaks at Golden Jubilee celebrations of poet Dinkar’s works
- Mirage 2000 fighter jet landing was part of capability demonstration: IAF
- DNA: IAF Mirage 2000 fighter plane lands successfully on Yamuna expressway
- DNA: Osama documents show 'Indian brother in Madinah' financed al Qaeda
- Coal scam: Naveen Jindal, Madhu Koda and others get bail
- ISIS executes Syrian fighter using anti-tank rocket launcher
- Vadodara: Policemen seen dancing with bar girls
- One year of Modi govt: Arun Jaitley addresses press conference
- RBSE (rajresults.nic.in) Class 12th science and commerce results 2015: Rajasthan Board Class 12th XII exam results 2015 to be announced today at 4 PM
- CBSE Class 10 Results 2015 to be announced today?
- IAF jet lands on Yamuna expressway
- Check Jharkhand Board jac.nic.in: Class 12th Art Results 2015 declared
- Fawad Khan doesn’t want intimate scenes with Sonam Kapoor?
- Log on to apeamcet.org AP EAMCET Results 2015: Andhra Pradesh EAMCET Marks and AP EAMCET Ranks 2015 declared
- We hire only non-Muslim candidates, diamond export firm tells Muslim youth
- Is MSG in 'Maggi' noodles harmful for you?
- Mumbai firm booked for denying Muslim MBA graduate job on religious grounds, probe ordered
- New IPL rules could see Chennai Super Kings lose MS Dhoni
- Jayalalithaa makes public appearance, meets Governor: As it happened
- `Piku` hits jackpot, does Rs 100 crore business worldwide
- SSLC (tnresults.nic.in) Tenth 10th Results 2015: Tamil Nadu Board Class 10th X Higher Secondary exam results 2015 to be announced today at 10 am
- Anurag Kashyap to bid goodbye to India, settle in 'cinema-friendly' France!
- SSLC (tnresults.nic.in) Tenth 10th Results 2015: Tamil Nadu Board Class 10th X Higher Secondary exam results 2015 to be announced shortly