Meanwhile, nitrogen oxides, produced when the gas is burned, have been linked to respiratory problems and cardiovascular disease. In just a few minutes of cooking on a gas stove without a fan hood on, levels in the kitchen were exceeding US national standards, according to the Stanford study, which was published in January 2022. As Rebecca Leber notes in her coverage of this study for Vox, another study found that kids in homes with gas stoves, rather than electric, were 42% more likely to have asthma.