Arsenic in Drinking Water: Is 10 μg/L a Safe Limit?

Arslan Ahmad*, Prosun Bhattacharya

*Corresponding author for this work

Research output: Contribution to journalComment/Letter to the editorAcademic

10 Citations (Scopus)


Arsenic (As) is a naturally occurring element in the Earth’s crust. Both anthropogenic and natural processes can release As into sources for drinking water supply. A substantial epidemiological evidence is available to support that the chronic exposure to high concentrations in drinking water (> 10 μg/L) is associated with several detrimental effects on human health including skin lesions [1] and cancer of the lung [2], bladder [3], kidney [4], and liver [4]. Furthermore, dermatological, developmental, neurological [5], respiratory [6], cardiovascular [7], immunological [8], and endocrine effects [9] as a result of chronic exposure to high As concentrations have been reported. However, there remains considerable uncertainty on the chronic risks due to As exposure at low concentrations (< 10 μg/L) and the shape of the dose-response relationship [10, 11]. It is therefore crucial to question whether the 10 μg/L limit ensures protection of human health from the adverse health effects of As.
Original languageEnglish
Pages (from-to)1-3
JournalCurrent Pollution Reports
Issue number1
Early online date16 Jan 2019
Publication statusPublished - Mar 2019



  • Arsenic
  • Drinking Water
  • Health Effects
  • Water Utilities

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