Human biomonitoring pilot study DEMOCOPHES in Germany: Contribution to a harmonized European approach

Area of Science:

• Environmental Health Sciences
• Toxicology
• Public Health Policy

Background:

• Human biomonitoring (HBM) is crucial for assessing environmental pollutant exposure but lacks comparable European data.
• The COPHES and DEMOCOPHES projects aimed to harmonize HBM studies across Europe.
• A pilot study measured mercury, cadmium, cotinine, and phthalates in children and mothers across 27 European countries.

Purpose of the Study:

• To present the implementation features of the German DEMOCOPHES study.
• To report and compare German exposure concentrations with European averages and national surveys.
• To assess children's exposure to specific environmental pollutants and identify potential health concerns.

Main Methods:

• Cross-sectional feasibility study involving 120 mother-child pairs in urban and rural German regions.
• Measurement of mercury in hair, and cadmium, cotinine, and phthalate metabolites in urine.
• Comparison of German data with European DEMOCOPHES averages and German Environmental Survey (GerES IV) data.

Main Results:

• German children showed lower mercury and cotinine concentrations than the European average, but 47% were exposed to environmental tobacco smoke (ETS) outside the home.
• German children had lower MEP and DEHP-metabolite concentrations but higher MnBP concentrations compared to other European countries.
• 2.5% of German children exceeded health guidance values for DEHP-metabolites and 4.2% for MnBP, indicating potential health risks.

Conclusions:

• The DEMOCOPHES study successfully harmonized HBM data across Europe, providing valuable insights into pollutant exposure.
• While some pollutant levels were lower in Germany, specific phthalate exposures raise health concerns, necessitating continued monitoring.
• Ongoing HBM and European cooperation are essential for tracking pollutant exposure, supporting chemical regulations, and protecting public health.