The UK Building Research Establishment has carried out measurements of levels of nitrogen dioxide (N02) in 12 homes in the South of England. Two types of detection device were used: the Scintrex LMA-3 continuous N02 analyser and the Palmes passive diffusion tube. NO 2 concentrations were recorded using both devices in the kitchen, living room and a bedroom of each home for a period of a week. Gas cooking was observed to be the most important source of peak concentrations of N02 in the home.
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