Combustion origin PM (Particulate Matter) has different characteristics such as hydrophilicity and hydrophobicity depending on the combustion method, however it is difficult to separate each PM characteristics. It is assumed that substances with hydrophilic properties have a higher rate of penetration into human cells than those with hydrophobic properties, but the relationship with toxicity to the human body remains unclear. In this study, to develop selective PM sensing system using a QCM (Quartz Crystal Microbalance), PM adsorption characteristics on the QCM coated with acetyl cellulose or polystyrene was investigated. PM emitted from a pool flame of hydrocarbon fuel such as toluene was supplied to the QCM, and its frequency shift was measured. As the results, for PM from toluene pool flame, mass of PM adsorbed on the QCM with hydrophilic characteristics was higher than that with hydrophobic characteristics.
Seki et al. (Wed,) studied this question.