Reference summary — not medical advice or a personal risk estimate.

Machine shop / metalworking

Metalworking fluids (older formulations = mineral oil, IARC 1); modern water-soluble formulas differ.

Also known as: machinist, metalworking fluid

IARC-classified factors documented in this product

IARC Group 1Mineral oils, untreated or mildly treatedhigh confidence
Exposure from · Source: IARC
Older metalworking fluids (poorly-refined mineral oils) — Group 1.

How to read this page

A factor appearing on this page means it has been documented in this product category — through EPA / FDA testing, IARC monographs, or regulatory recall records. Whether it presents a meaningful personal risk depends on the specific formulation, dose, and how you're exposed. Click any factor to read what science actually says about it, and where.