Abstract
Human indoor activities generate airborne particles which contribute to the increase of aerosol concentration levels in the home. The particle size distribution emission rate was measured for 18 different activities (burning candle or incense, cooking, spray use, computer printing and household cleaning). The particle emission rate was calculated from concentration measurements with a DMS500 (CAMBUSTION) in an experimental chamber (2.36 ± 0.05 m 3). The results showed that ultrafine particles are emitted during these activities and the lowest number distribution mode was 6 nm for one of the burning candles. All the cooking activities had similar emissions with a mode between 20 and 40 nm. The measured size distributions were represented in a database by the sum of 1, 2 or 3 lognormal distributions. The measured total emission rate ranged between 0.06 × 10 10 and 13.10 × 10 10 s −1 and the highest emission rate was measured for the self cleaning oven program (pyrolysis).
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