Mapping technique based on elemental hair composition data

Area of Science:

• Environmental Science
• Human Biology
• Analytical Chemistry

Background:

• Human hair composition reflects environmental exposure and biological factors.
• Understanding elemental profiles is crucial for environmental monitoring and health assessments.

Purpose of the Study:

• To determine the elemental content in hair samples from Uzbekistan's population.
• To investigate correlations between elemental composition and demographic, geographic, and health-related factors.

Main Methods:

• Instrumental Neutron Activation Analysis (INAA) was employed.
• Analysis of 2000 hair samples using a Ge(Li) detector and multi-channel analyzer.
• Utilized IAEA HH-1 and laboratory standards for accurate quantification.

Main Results:

• No correlation found between elemental content and hair color or ethnic group.
• Significant dependencies observed for sex, hemoglobin levels, blood group, and occupation.
• Elemental concentrations showed geographical variations linked to urban areas and biogeochemical anomalies.
• Lognormal distribution patterns were prevalent in cumulative histograms.
• Potential links between hair element content and national death rates were identified.

Conclusions:

• Human hair elemental composition in Uzbekistan is influenced by individual biological and occupational factors, as well as geographic location.
• The findings suggest hair analysis can serve as a valuable tool for environmental and health-related studies in the region.
• Further research is warranted to explore the implications of these elemental variations on public health outcomes.