Finding F-0662

“Across a subset of five randomly selected homes, we found that outside-venting hoods reduced hour-averaged kitchen NO2 concentrations by between 10 and 70% (mean reduction in concentration = 35%, n = 5; fig.”

Nitrogen dioxide exposure, health outcomes, and associated demographic disparities due to gas and propane combustion by U.S. stoves (2024). Science advances. Page 2. CKB 5873

Structure

Factor: Nitrogen dioxide (NO₂)
Intervention: Range hoods and kitchen exhaust
Population: households with gas or propane stoves
Setting: kitchen, US
Study design: field measurements of NO2 emissions and concentrations from gas and propane stoves in more than 100 US homes, with hour-averaged kitchen concentrations measured with and without outside-venting range hoods in a subset of five randomly selected homes; national exposure and health burden then modelled (class 4)
Effect: difference 10
Averaging time: hour-averaged kitchen concentration during stove use
Sample: 5 homes
Caveat: measured in a subset of five randomly selected homes; the authors note that some outside-venting hoods were ineffective

A Finding records what one published document states, verbatim and with its page. It is not a conclusion of Coridum; see the Claims that build on it.