Physical changes of indoor dust caused by hot surface contact

Review of research on air-conditioning systems and indoor air quality control for human health

“…Furthermore, the dust accumulating on hot surfaces (e.g., heaters and light fixtures) is likely to emit chemicals when heated. Pedersen et al (2001Pedersen et al ( , 2003 compared the emission characteristics of VOCs during heating of different dust samples relevant to the indoor environment. Emissions of VOCs from heated dust from different sources were surprisingly similar.…”

Fundamentals of Indoor Particles and Settled Dust

“…1-2 Percent by weight and loss on ignition (LOI) of different dust fractions (Salthammer, 2003) Pedersen et al (2001) observed a significant increase in the number of submicrometer particles that were emitted during heat treatment of indoor dust. This was observed even at 50-100°C, a temperature range which is often present in an indoor environment, when heat sources such as halogen lamps are operated.…”

A screening assessment of emissions of volatile organic compounds and particles from heated indoor dust samples

“…Electric heaters were found to produce large amounts of sub‐micrometer particles at temperatures higher than 150–200°C (Sammaljärvi and Raunemaa, 1990), and reduction in the total mass of dust due to heating was less than 10% below 200°C (Hirvonen et al., 1994). In a previous study, we found that the most prominent changes induced by heating were in the particles emitted during heating rather than the residual dust (Pedersen et al., 2001). The emission of VOCs starts in the range of 150–200°C (Pedersen et al., 2002), and the increase in the number of emitted sub‐micrometer particles occurs even at lower temperatures, 50–100°C (Pedersen et al., 2001).…”

“…In a previous study, we found that the most prominent changes induced by heating were in the particles emitted during heating rather than the residual dust (Pedersen et al., 2001). The emission of VOCs starts in the range of 150–200°C (Pedersen et al., 2002), and the increase in the number of emitted sub‐micrometer particles occurs even at lower temperatures, 50–100°C (Pedersen et al., 2001).…”