Safety, exposure, toxicology

Evidence: Mixed. Field hygiene data can be well-supported. Many cell-culture papers are preliminary. Nothing here is medical advice.

Full effects table (humans, animals, workplace numbers): [[topics/health/effects]].

What is actually measured at work

NIOSH sampled workers at US graphene producers/users. Against a conservative 10 µg/m³ occupational band (not an OSHA PEL), many samples exceeded it when dry powder was handled. Prefer masterbatch or liquid in that literature. [[topics/policy/2026-09-16-niosh-graphene-exposure]] · [[weekly/2026-W38]]

No disease cluster is attached to those notes on this site. Absence of a reported cluster is not proof of lifelong safety.

What the paper pile is

Thousands of papers on GO / graphene in cells, rodents, environmental models. Results depend on form, oxidation, metals, dose, and route. That is why a single “graphene is toxic / graphene is safe” sentence is propaganda either way.

What this is not

• Proof that licensed vaccines contain GO ([[logs/conspiracies]]).
• Proof that a composite part sheds monolayer graphene into blood.
• A substitute for a site-specific industrial-hygiene plan.

Related: [[topics/health]] · [[reference/forms]]