In an effort to understand the particle exposure which we experience indoor every day, we used the Fast Aerosol Sizer (DMS500 Mk2) to monitor the emissions from two common activities: using a toaster, and pan-frying bacon.
The empty toaster emitted nanoparticles throughout its operation: the particles had a narrow size distribution with a peak around 7 nm, shifting to about 15 nm towards the end of the cycle. Rapid decay in particle number was observed as soon as the toaster turned off, but a persistent increase in ambient level concentrations was seen.
Cooking bacon led to a more variable particle size distribution, with peaks around 50 to 100 nm. The cook was directly exposed to short transients of high particle concentrations when turning over the bacon, but a persistently increased ambient particle concentration was also recorded.
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