Examining indoor pollutant levels from gas and electric cookers, University of Sheffield (UK) researchers found that gas kitchens had pollutant concentrations “well above” the levels set by the government as its objective for outdoor air quality. The findings appear in the Journal of Indoor and Built Environment.
The work is based on air quality measurements taken in a small number of flats and houses in both rural and city settings. Air samples were taken outside and inside the properties, from each kitchen, over a four-week period. The researchers found that nitrogen dioxide levels in the kitchen of a city-center flat with a gas cooker were three times higher than the concentrations measured outside the property and well above those recommended inUK Indoor Air Quality Guidance.
In the case of particulate pollutants (solid particles small enough to penetrate into the lungs), the average particle concentrations measured by the research team in the kitchens with gas cookers were higher than the levels set by the government as its objective for outdoor air quality in London.
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