NO2 (nitrogen dioxide)
Toxins · Air pollution
High priority
What this is
Gruenwald 2023 attributed ~12% of US childhood asthma to gas stove exposure, driving 2023 regulatory debate. Induction cooking avoids the combustion source entirely. Vented range hood is second-best; recirculating hoods do nothing for NO2.
Mechanism
Reddish-brown combustion gas from vehicles, gas cooking, industry; reactive oxidant; airway irritant; forms ozone and secondary PM2.5; indoor source: gas stoves (4x outdoor concentration during use)
Dose & route
Range hood use, induction cooking, no-idling around kids
Citations
- https://pubmed.ncbi.nlm.nih.gov/36701641/
- https://pubmed.ncbi.nlm.nih.gov/28214404/
- https://pmc.ncbi.nlm.nih.gov/articles/PMC10055042/
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This is an independent synthesis of published research by a non-clinician. Scores are opinions supported by citations, not prescriptions. See the full disclaimer and methodology for how this score was produced and what it does and doesn't mean.