NO2 (nitrogen dioxide)
Toxins · Air pollution
High exposure concern
Bottom line
Read Off Label rates NO2 (nitrogen dioxide) a HIGH exposure concern (7.6/10) based on strong evidence of high harm magnitude and med-high chronic exposure prevalence.
Gruenwald 2023 attributed ~12% of US childhood asthma to gas stove exposure, driving 2023 regulatory debate.
This entry describes an exposure rather than an added intervention.
What the evidence says
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 hoods reduce combustion pollutants less completely than eliminating the combustion source; recirculating hoods do not remove 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)
Reported exposure / mitigation context
Exposure-reduction contexts include vented range hoods, induction cooking, and reduced vehicle idling near children
Citations
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Common questions
- How harmful is NO2 (nitrogen dioxide)?
- NO2 (nitrogen dioxide) is rated HIGH exposure concern (7.6/10) on the Read Off Label scale, derived from strong evidence of high harm magnitude and med-high chronic exposure prevalence.
- How does NO2 (nitrogen dioxide) cause harm?
- 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)
- What exposure context is reported for NO2 (nitrogen dioxide)?
- Gruenwald 2023 attributed ~12% of US childhood asthma to gas stove exposure, driving 2023 regulatory debate.
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.