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Updated: Aug 7, 2026
08:21
Determination of Inorganic Arsenic in a Wide Range of Food Matrices using Hydride Generation - Atomic Absorption Spectrometry.
Published on: September 1, 2017
Arsenic: opportunity for risk assessment
1Washington Institute, Washington, DC 20036.
Archives of Toxicology
|January 1, 1991
Summary
Arsenic is a carcinogen, but research confirms a safe intake threshold exists, even for cancers. Arsenical skin disease offers a way to monitor and support arsenic regulations.
Area of Science:
- Environmental Health
- Toxicology
- Carcinogenesis
Background:
- Arsenic is a known human carcinogen found in food and water.
- Regulatory standards for arsenic have existed for nearly a century, based on a presumed safe intake threshold.
- Modern US regulatory approaches often conflict with established arsenic standards for carcinogens.
Purpose of the Study:
- To investigate the existence and implications of a safe threshold dose for arsenic exposure.
- To explore the molecular mechanisms by which arsenic induces cancer.
- To support regulatory standards for arsenic through the study of arsenical skin disease.
Main Methods:
- Quantitative analysis of recent epidemics of arsenicism.
- Gene induction studies to understand arsenic's carcinogenic pathways.
- Survey of arsenical skin disease as a potential monitoring tool.
Main Results:
- Epidemics confirmed a dose-response threshold for both non-cancerous skin lesions and arsenic-induced cancers.
- Arsenic acts as a general gene inducer, activating pathways involved in cell proliferation and viral activation, classifying it as an indirect carcinogen.
- Background arsenic levels below current drinking water standards have not been linked to disease.
Conclusions:
- A safe threshold for arsenic intake exists, supporting classical toxicological principles.
- Arsenic's role as an indirect carcinogen is supported by its gene-inducing properties.
- Arsenical skin disease serves as a valuable indicator for public health surveillance and regulatory enforcement.
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