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Nickel in tap water.

K E Andersen, G D Nielsen, M A Flyvholm

    Contact Dermatitis
    |March 1, 1983
    PubMed
    Summary
    This summary is machine-generated.

    Nickel levels in Copenhagen tap water can be high, especially in the first draw of hot water. Flushing the tap reduces nickel concentration, potentially impacting nickel hand eczema risk.

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    Area of Science:

    • Environmental Science
    • Public Health
    • Analytical Chemistry

    Background:

    • Nickel is a metal found in various environmental sources, including drinking water.
    • Exposure to nickel can be a concern for public health, particularly for individuals with sensitivities.
    • Tap water composition can vary based on plumbing materials, water temperature, and usage patterns.

    Observation:

    • Nickel concentrations in initial tap water samples in Copenhagen reached up to 490 µg/L.
    • Higher nickel levels were observed in hot water compared to cold water.
    • Nickel concentrations significantly decreased after flushing taps for 5 minutes.

    Findings:

    • Tap water nickel levels exhibited considerable temporal and spatial variability across different taps.

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  • The initial portion of tap water, particularly hot water, may contain elevated nickel concentrations.
  • Variations in nickel content suggest dynamic leaching processes from plumbing infrastructure.

    • Implications:

    • Drinking the first portion of tap water in the morning could contribute to nickel exposure.
    • Elevated nickel intake from tap water may be a contributing factor to nickel hand eczema.
    • Recommendations for reducing nickel exposure through tap water consumption may be warranted.