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Diesel Exhaust Exposure (NO2, PM2.5, Benzene — IARC Group 1) — household safety profile

High risk

Diesel engine exhaust containing nitrogen dioxide (NO2), fine particulate matter (PM2.5), benzene, formaldehyde, and 40+ toxic air contaminants.

What is this product?

Diesel engine exhaust containing nitrogen dioxide (NO2), fine particulate matter (PM2.5), benzene, formaldehyde, and 40+ toxic air contaminants. IARC 2012: reclassified diesel exhaust to Group 1 (sufficient evidence for lung cancer). Occupational exposure (truckers, miners, mechanics) and environmental exposure (school bus idle, near highways, freight corridors). Diesel particulate filters (DPF) on post-2007 trucks reduce PM2.5 by 90%+ but legacy fleet persists.

What's in it

Click any compound name for its full safety profile, regulatory consensus, and exposure data.

Combustion Product

Who's most at risk

  • Children — Developing endocrine and neurological systems, higher exposure per body weight

Red flags — when to walk away

  • Exposure in enclosed or poorly ventilated transport environment — Chemical concentrations increase in confined spaces.

Green flags — what to look for

  • EPA-registered, UL-certified, or industry safety standard compliance — Product/system meets applicable safety requirements.

Safer alternatives

  • Electric school buses — EPA Clean School Bus Program
  • Anti-idling enforcement at schools — Alternative
  • MERV 13 indoor filtration for highway-adjacent homes — Alternative

Frequently asked questions

Who should be careful with Diesel Exhaust Exposure (NO2, PM2.5, Benzene — IARC Group 1)?

Vulnerable populations identified for this product type: children.

Are there safer alternatives to Diesel Exhaust Exposure (NO2, PM2.5, Benzene — IARC Group 1)?

Yes — consider: Electric school buses; Anti-idling enforcement at schools; MERV 13 indoor filtration for highway-adjacent homes. See the Safer alternatives section above for details.

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Reference data, not professional advice. Aggregates publicly available regulatory and scientific information. Why we built ALETHEIA →