Cancer risk from inorganics

Area of Science:

• Environmental Health
• Toxicology
• Occupational Medicine

Background:

• Inorganic metals and minerals are prevalent in various environments, including workplaces and medical settings.
• Evidence suggests some inorganic substances possess carcinogenic potential, influencing human health.
• Understanding these risks is crucial for public health and occupational safety.

Purpose of the Study:

• To identify inorganic metals and minerals with carcinogenic evidence.
• To discuss cancer risks associated with occupational, environmental, and clinical exposures.
• To analyze the mechanisms of carcinogenicity and update views on metal-induced cancers.

Main Methods:

• Literature review of in vitro, animal experimental, and human epidemiological data.
• Categorization of metals based on evidence of carcinogenicity (established, suspected, possible).
• Analysis of cocarcinogenic effects, particularly mineral fibers and smoking interactions.

Main Results:

• Metals like Arsenic (As), Beryllium (Be), Chromium (Cr), and Nickel (Ni) are established carcinogens.
• Cadmium (Cd) and Lead (Pb) are suspected carcinogens, with others classified as possible.
• Mineral fibers act as cocarcinogens, with synergistic effects when combined with smoking.

Conclusions:

• Inorganic metals and minerals pose cancer risks through various exposure routes.
• Cocarcinogenesis, especially involving mineral fibers and smoking, is a significant factor.
• Further research is needed on the effectiveness of dosimetry for radiopharmaceuticals and clinical exposures.