Hair-strands record travels

Bottled water, soda, or micro brew-beer contain a natural chemical imprint related to geographic location, say researchers reporting their findings in the Journal of Agricultural and Food Chemistry. When you consume these beverage you leave a chemical imprint in your hair that could be used to track your travels over time, their study suggests.

Lesley Chesson, of IsoForensics Inc and colleagues explain that the body removes hydrogen and oxygen atoms from water (H2O), and beverages containing water, and incorporates them into proteins, including the protein in hair. Hydrogen and oxygen exist in different forms, or isotopes.

The proportions of those isotopes vary in a predictable way geographically, with higher values in low-latitude, low-elevation, or coastal regions, for instance, and lower values elsewhere. Since manufacturers usually use local or regional water sources in producing beverages, isotope patterns in hair could serve as a chemical “fingerprint” to pinpoint the geographic region where a person has been.

The scientists analyzed isotope patterns in bottled water, soda pop, and beer from 33 cities and found that patterns in the beverages generally matched those already known for the tap water. They noted that the isotope pattern in beverages tends to vary from city to city in ways that give cities in different regions characteristic “iso-signatures.”

A person who drinks a beer or soda in Denver, Des Moines, or Dallas, for instance, consumes a different isotope signature than a person in Las Cruces, Las Vegas, or Laramie. The finding may help trace the origin of drinks or help criminal investigators identify the geographic travels of crime suspects and other individuals through analysis of hair strands, the study suggests.

Related:
DNA surname profiling mooted in UK
Beer-goggles put to the test

Source: Journal of Agricultural and Food Chemistry

, ,

Comments are closed.

Forensics, mind bending puzzles, mathematical games knowledge cards never played picture

Forensics, mind bending puzzles, mathematical games knowledge cards never played

$30.00



Spex Forensics Onsite Student Kit Complete Set With Carry Case picture

Spex Forensics Onsite Student Kit Complete Set With Carry Case

$74.95



Michigan High School Forensics Association Lapel Pin picture

Michigan High School Forensics Association Lapel Pin

$9.45



NFL Key Lapel Pin National Forensics League Silver Color Speech Drama Green Gem picture

NFL Key Lapel Pin National Forensics League Silver Color Speech Drama Green Gem

$15.75



DIGITAL FORENSICS EMB PATCH 4X10 AND 2X5 HOOK ON BACK WHITE ON BLACK picture

DIGITAL FORENSICS EMB PATCH 4X10 AND 2X5 HOOK ON BACK WHITE ON BLACK

$16.75



FORENSICS Embroidered Patch Rectangle Large White on Black NEW 10.75

FORENSICS Embroidered Patch Rectangle Large White on Black NEW 10.75"x 4"

$8.50



NEW STYLE  HADDONFIELD SHERIFF FORENSICS   IL ILLINOIS  HALLOWEEN  MICHAEL MYERS picture

NEW STYLE HADDONFIELD SHERIFF FORENSICS IL ILLINOIS HALLOWEEN MICHAEL MYERS

$10.00



NEW STYLE  HADDONFIELD SHERIFF FORENSICS   IL ILLINOIS  HALLOWEEN  MICHAEL MYERS picture

NEW STYLE HADDONFIELD SHERIFF FORENSICS IL ILLINOIS HALLOWEEN MICHAEL MYERS

$11.00



INTERNAL REVENUE SERVICE CRIMINAL INVESTIGATION DIGITAL FORENSICS CHALLENGE COIN picture

INTERNAL REVENUE SERVICE CRIMINAL INVESTIGATION DIGITAL FORENSICS CHALLENGE COIN

$52.00



U.S. Armed Forces ALPHA/BRAVO Combat Forensic Kit - ACU Digital picture

U.S. Armed Forces ALPHA/BRAVO Combat Forensic Kit - ACU Digital

$367.95



Powered by WordPress. Designed by WooThemes