Researchers have found that gas stoves produce more indoor air pollutants than some scientists expect. The process of burning natural gas generates high levels of nitrogen oxides which is linked to asthma in children. Many of these researchers began switching to electric stoves and are warning people about the health risks.
Tara Kahan, a chemist at the University of Saskatchewan took pollution readings inside homes after cooking with a gas stove in 2017 and 2018. Both Khan and her colleagues were surprised to see the high levels of nitrogen oxides and how long they lasted. In a 2013 meta-analysis of 41 studies found that children living in a home with a gas fireplace gad a 42 per cent increased risk of asthma.
In the findings, levels of nitrogen oxide pollutants sometimes exceeded Health Canada guidelines for a one-hour exposure. The pollutants also often lingered for a couple of hours. Kahan said “It really took a long time to go away, … All of the researchers were pretty horrified.”
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